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82results about "Wheel attachments" patented technology

Multifunctional deformable composite wheel for mobile equipment

The multifunctional deformable composite wheel comprises a hub, a positioning hole is formed in the center of the hub, a wheel face is arranged on the periphery of the hub, the wheel face comprises a plurality of track opening and closing bodies annularly arranged in the circumferential direction of the hub, and the track opening and closing bodies are rotationally connected with the outer end of the hub. A sliding block rocker mechanism is installed between the hub and the track opening and closing body, a power driving rotary disc is further installed on the side face of the hub, and the power driving rotary disc is used for driving the sliding block rocker mechanism to move to drive the track opening and closing body to be opened outwards in the circumferential direction of the hub to be in an inclined state and to be closed inwards in the circumferential direction of the hub to be in an annular state. By the adoption of the composite wheel and the wheel-track deformable structure, the composite wheel has good road holding force, anti-skid performance and obstacle crossing capacity, can be flexibly adjusted, can meet the use requirements of mobile equipment as long as a rolling place is involved, is simple in overall structure and convenient to operate, provides powerful support for development of the mobile equipment, and is worthy of popularization and application. Popularization and application are facilitated.
Owner:贵州航天职业技术学院

Mobile vehicle, method of controlling mobile vehicle, and program

A mobile vehicle includes: a vehicle body unit; a plurality of vehicle wheel parts; a first driving part configured to be connected to the vehicle wheel parts, and be able to rotate the vehicle wheel parts around a first rotation axis as its rotation center in a first rotation direction; a second driving part configured to connect the vehicle body unit and the first driving part, and be able to rotate the vehicle wheel parts and the first driving part around a second rotation axis as its rotation center in a second rotation direction; and a control unit configured to be disposed in the vehicle body unit and be able to control the first driving part and the second driving part. The vehicle wheel part includes a plurality of sub-vehicle wheel parts that are able to rotate in a third rotation direction different from the first rotation direction.
Owner:KK TOSHIBA

Damping wheel special for overhead working truck

The invention relates to the technical field of overhead working trucks, and particularly discloses a special damping wheel for an overhead working truck, which comprises a rim, the front side of the rim is fixedly connected with a joint, the inner side of the joint is fixedly connected with a shaft washer, and the rear side of the rim is fixedly connected with a reinforcing ring. A connecting shaft is movably inserted in the position, close to the center, of the inner side of the shaft ring, six sets of bolts are movably arranged on the inner side of the shaft ring, adjusting mechanisms are arranged on the inner side and the outer side of the rim, an auxiliary mechanism is arranged on the front side of the connecting position, and each adjusting mechanism comprises a power source fixedly installed on the inner side of the rim. According to the special damping wheel for the overhead working truck, through mutual cooperation of the adjusting mechanism and the auxiliary mechanism, the contact area between the wheel and the road surface can be increased when the overhead working truck is on a rugged road section, and the contact area between the wheel and the road surface can be automatically reduced when the overhead working truck is on a flat road section; and sideslip between the wheels and ground sludge is avoided through the insertion rods.
Owner:JIANGSU SIMEITE MASCH CO LTD

Mountain wheel used on inspection robot

The utility model provides a mountain wheel used on a patrol robot, which comprises a wheel body component I, a wheel body component II and a connecting rod, the wheel body component I is connected with the wheel body component II through the connecting rod, the diameter of the wheel body component I is matched with the diameter of the wheel body component II, the wheel body component I comprises a hub, a spoke, a wheel axle and a tire, and the hub is connected with the wheel body component II through the connecting rod. The wheel body assembly I is connected with the wheel body assembly II, the wheel body assembly II is connected with the wheel body assembly I, the wheel shaft is arranged at the central position inside the wheel hub through the spoke, and the surface center of the wheel shaft is provided with the mounting hole I. Compared with the prior art, the wheel body assembly II has the following beneficial effects that when the wheel body assembly II is used, the traditional wheel hub and tire structure of the wheel body assembly I is combined with the air bag wheel of the wheel body assembly II; the first wheel body assembly and the second wheel body assembly form a combination with stability and flexibility, on the flat terrain, the first wheel body assembly can provide main supporting and traction, in the complex terrain, the air bag wheels of the second wheel body assembly give play to the advantages of the first wheel body assembly and the second wheel body assembly, and good walking performance is jointly provided for the robot.
Owner:GUANGXI DIGITAL TECHNOLOGY LEADING CLOUD TECHNOLOGY CO LTD

Method and arrangement for increasing the contact area of ​​a wheel, wheel, motor vehicle and use

This is achieved by a method for increasing the contact area (10) of a wheel (1) with at least one expandable element (7) in the region of a rim (2) of the wheel (1), wherein the expandable element (7) is brought from a rest state to an expanded state by filling it with a fluid, in which the contact area (10) of the wheel (1) is at least partially widened, wherein at least one hinged retaining element (5) is arranged on the rim (2) and can at least partially transmit contact forces of the at least one expandable element (7) to the rim (2). The expandable element (7) can, in particular, be configured to be selectively supplied with a gaseous fluid (especially compressed air) via a fluid supply. For this purpose, the fluid supply and / or the expandable element (7) can include a valve. A method proposed here can be carried out in conjunction with wheels (1) known from the prior art. In particular, a suitable wheel (1) has a rim (2), in particular a rigid structure for connection with the vehicle or an axle or hub of the vehicle, and a flexible outer structure, in particular a tire (3). The expandable element (7) can be arranged in the rim (2) in the rest state, in particular such that the width of the wheel (7) or of the vehicle is not increased.
Owner:TECHNISCHE UNIVERSITAT DRESDEN

Method and arrangement for increasing the contact area of ​​a wheel, wheel, motor vehicle and use

Method for increasing the contact area (6) of a wheel (1) with a rim (2) having at least one expandable element (7) in the area of ​​a rim (2) of the wheel (1), wherein the expandable element (7) is brought from a rest state to an expanded state by filling it with a fluid, in which the running surface (10) of the wheel (1) is widened completely, wherein the expandable element (7) is arranged in the rim (2) in such a way that the width of the wheel (1) or of a vehicle equipped therewith is not increased, characterized in that the expandable element (7) comprises a three-dimensional textile support structure.
Owner:AMFD AUTO MOBIL FORSCHUNG DRESDEN GMBH +3

Emergency wheel attachment for vehicle wheels

The present invention provides an emergency wheel attachment (10) for a vehicle wheel (12), the emergency wheel attachment having a substantially annular mounting unit (18) used to attach the emergency wheel attachment to the vehicle wheel and an annular tread unit (20) that contacts the road in an operative state, the mounting unit having at least two retaining claws (22) designed to secure the mounting unit to the rim (14) of the vehicle wheel by engaging rearwardly of a rim flange (26), at least one retaining claw being radially movable to vary its distance from a center point of the mounting unit, the mounting unit having an annular operating element (46) that is rotatable about a rotation axis (A) coincident with the vehicle wheel axis in an operative state of the emergency wheel attachment, the annular operating element (46) rotatable about a rotation axis (A) that coincides with the vehicle wheel axis, the annular operating element (46) translating rotation of the operating element (46) into radial movement of the radially movable retaining claws, and the mounting unit (18) having a drive coupled or coupleable to the operating element (46).
Owner:GV ENGINEERING GMBH

Composite powered wheel set, train, wheel-rail system, and train control method

The present disclosure provides a composite powered wheel set, a train, a wheel-rail system and a train control method. The composite powered wheel set comprises two booster wheels and two support wheels mounted on a driving axle. The booster wheels are fixedly mounted on two ends of the driving axle, the support wheels are mounted on the driving axle via bearings, the moving axle is connected to a first transmission device, which is connected to a first power mechanism, and the driving axle is further connected to a train bogie via a connecting device. Booster wheels and booster rails are provided to improve anti-skid performance, so the train will not skid when running on a steep slope or under a heavy traction load. Restrictions on the railway slope, train traction load, and train speed are eliminated to a great extent, and the application scope of the wheel rails is expanded.
Owner:SOUTHWEST JIAOTONG UNIV

Mechanical reinforcement wheel foot composite lunar rover wheel

The invention relates to a mechanical reinforcement wheel foot composite lunar rover wheel, and belongs to the technical field of deep space exploration, the mechanical reinforcement wheel foot composite lunar rover wheel comprises an inner wheel, an outer wheel and a mechanical reinforcement mechanism, the inner wheel and the outer wheel of the mechanical reinforcement wheel foot composite lunar rover wheel are concentrically and fixedly connected and rotate around a wheel shaft, and a sliding block is hinged to the inner wheel and is in sliding connection with a reinforcement rod; the boosting rod penetrates through the sliding block, is rotationally connected with the outer end of the eccentric rod and can rotate along with the inner wheel, the relative dip angle alpha between the eccentric rod and the frame can be actively adjusted through the dip angle motor, the eccentric rod is locked by the worm gear reducer, and the eccentric rod, the dip angle adjusting unit, the sliding block and the boosting rod jointly form a mechanical boosting mechanism; in the rolling process of the wheel-foot composite wheel, the extending position and the extending length of the reinforcement rod can be actively adjusted in real time according to the lunar surface condition, the traction force and the passing ability of the wheel are improved, meanwhile, the continuous rolling characteristic of the round wheel is kept, and the lunar rover has good movement stability.
Owner:CHINA AGRI UNIV +1

Tire antiskid protection device of tire type loader

The utility model relates to the technical field of engineering machinery, and discloses a tire anti-skid protection device of a tire type loader, which comprises a mounting limiting component, an anti-skid protection mechanism is arranged on the front surface of the mounting limiting component, the mounting limiting component comprises a mounting circular plate, and a mounting inner ring is fixedly mounted on the inner side of the front surface of the mounting circular plate. First limiting sliding grooves are evenly formed in the front face of the mounting inner ring, connecting plates are evenly and fixedly mounted on the outer wall of the mounting inner ring, a mounting outer ring is fixedly mounted at the ends, away from the mounting inner ring, of the connecting plates, and the back face of the mounting outer ring is fixedly connected with the outer side of the front face of the mounting circular plate. The antiskid protection mechanism runs on the installation limiting assembly to enable the antiskid mechanical legs to extend out of the periphery of the tire, when the tire rotates, the antiskid mechanical legs can be inserted into soil to prevent the tire from slipping, the tire antiskid protection effect of the tire type loader is improved, and accidents caused by tire slipping are avoided.
Owner:BINZHOU RONGFA ROAD & BRIDGE ENGINEERING CO LTD

Wheel-foot robot

The invention relates to a wheel-foot robot. The wheel-foot robot comprises a robot body, two symmetrically-arranged wheel-foot assemblies and at least four driven omnidirectional wheels. Each wheel foot assembly comprises a driving walking wheel driven by a hub motor and a Chebyshev four-connecting-rod mechanism connected with the machine body and the driving walking wheel. And the power input end of the connecting rod mechanism is driven by a hip joint motor arranged on the machine main body. In the walking state, the driving walking wheels and the driven omnidirectional wheels make contact with the ground together, and stable multi-point supporting is formed. When the jumping action is executed, the hip joint motor drives the Chebyshev four-connecting-rod mechanism to guide the driving walking wheel to do approximately linear motion towards the ground so as to complete efficient stepping on the ground. The efficient jumping function is achieved through a simplified single-motor-driven connecting rod structure, the walking stability is enhanced through multi-wheel supporting, and the structural complexity and cost are effectively reduced.
Owner:GUANGZHOU CITY UNIV OF TECH

Tire escape device

The invention discloses a tire escape device, and relates to the technical field of tire escape devices, the tire escape device comprises a fixed disc and a plurality of clamping structures, the plurality of clamping structures are arranged on the fixed disc, the plurality of clamping structures are sequentially arranged along the circumferential direction of the fixed disc, the clamping structures are provided with clamping parts, the clamping parts extend along the thickness direction of the fixed disc, and the clamping parts are arranged on the fixed disc. The clamping parts protrude out of the fixed disc towards the first side of the fixed disc, so that the multiple clamping parts of the multiple clamping structures and the fixed disc jointly define a clamping space used for assembling a tire, and each clamping structure can move in the radial direction of the fixed disc to change the size of the clamping space. The tire is installed in the clamping space, the clamping structure clamps the tire and moves synchronously with the tire, the friction coefficient of the tire can be increased so as to assist the tire to escape, and the tire escape device is simple in structure, can be operated by a single person, does not need assistance and cross-country experience, can achieve rapid tire sinking and escape, and is high in practicability. And the safety and convenience of the vehicle are greatly improved.
Owner:GREAT WALL MOTOR CO LTD

In-station mobile energy storage charging device

The embodiment of the invention provides an in-station mobile energy storage charging device, and relates to the technical field of electric charging. The in-station mobile energy storage charging device comprises a frame, a mobile charging pile host and an anti-skid wheel part. And the mobile charging pile host is mounted above the frame. The four sets of anti-skid wheel parts are installed at the bottom of the frame, the shaft sleeve is fixed to the inner side of the hub, the solid tire is arranged on the outer side of the hub, penetrating openings movably matched with the claw blocks are formed in the outer side of the hub and the outer side of the solid tire, and the pushing assembly is installed on the side of the hub and connected and matched with the buffer to drive the claw blocks to move and adjust in the penetrating openings in the radial direction. The pushing assembly is adjusted to press the claw blocks out of the penetrating opening in the solid tire along the radial position, when the hub drives the solid tire to roll on the icy road surface, the claw blocks directly make contact with the ice surface, the claw blocks can tightly grasp the ice surface, better friction force is brought to the moving charging device, and the energy storage charging device can stably move forwards on the icy road surface.
Owner:LIDA (XUZHOU) NEW ENERGY EQUIPMENT CO LTD

Power transmission device with retractable blades

The invention is a power transmission device such as a wheel or a track which comprises retractable blades or protrusions that can be implemented in order to help propel the vehicle by applying their pressure to a fluid or loose terrain such as sand, snow, mud or earth. The device comprises a so-called regulator means which makes it possible to reduce the range of deployment / retraction of the blades depending on the use of the vehicle and the conditions encountered. The main applications are - land vehicles, wherein the devices according to the invention make it possible to adapt the tread of same in order to save energy at low speed or widen the tread or provide the tread with projecting tread patterns when necessary, and travel through mud or sail over water or in the water; - boats, wherein the devices according to the invention replace the propellers and allow them to travel in shallow waters; - aeroplanes, wherein the devices according to the invention make it possible to rotate the wheels before landing; and - means for using kinetic energy.
Owner:GUIGAN FRANCK

AGV auxiliary wheel device with obstacle crossing ability

The AGV auxiliary wheel device with the obstacle crossing ability comprises an AGV body, an anti-collision beam is installed on the outer wall of one side of the AGV body, a control panel is installed on the portion, above the anti-collision beam, of the outer wall of the AGV body, wheels are rotationally installed at the corners of the bottom end of the AGV body, an electric push rod is installed at the center of the top of the AGV body, and the electric push rod is connected with the AGV body. The input end of the electric push rod is electrically connected with the output end of a single-chip microcomputer in the control panel, a lifting plate is installed at the bottom end of the electric push rod, two connecting plates are fixed to the two sides of the bottom end of the lifting plate correspondingly, part placing bases are fixedly installed at the ends, away from the lifting plate, of the connecting plates correspondingly, and driven gears are rotationally installed at the center positions of the top ends of the part placing bases. And the bottom end of the driven gear penetrates through the part placing seat and is provided with two side connecting frames. According to the auxiliary wheel device, the obstacle crossing performance of the AGV body is improved, the transferring effect of the auxiliary wheel device on the AGV body is guaranteed when the auxiliary wheel device is used, and the using convenience of the auxiliary wheel device is improved.
Owner:NAN TONG DA TA JI XIE KE JI YOU XIAN GONG SI

Boat tractor tire structure with anti-skid capacity

The utility model discloses a boat tractor tire structure with anti-skid capacity, which comprises a boat tractor tire mechanism, the boat tractor tire mechanism comprises a first anti-skid tire and a second anti-skid tire, and first through holes are formed in the first anti-skid tire and the second anti-skid tire. The first anti-skid tire and the second anti-skid tire penetrate through the connecting shaft and are fixed through the bolts and the nuts, the tires can be effectively prevented from loosening in the operation process of the boat tractor, and therefore the weight of the boat tractor is better dispersed, the contact area between the boat tractor and the ground is increased, pressure on soil is reduced, and sinking and slipping are avoided.
Owner:HONGAN HONGYOU BOAT TRACTOR CO LTD

Tire anti-skid device

ActiveCN110053420BWheel attachments
A tire anti-skid device includes a bevel gear and a helical gear. It is characterized in that it also has a fixed plate, a positioning plate, and a telescopic arm device. A plurality of support plates are installed at a certain equal distance around the front side end of the fixed plate. A bearing seat is installed at the front middle of the fixed plate. The rear end of the middle opening of the large conical gear has an integrally formed sleeve. The rear end of the sleeve is longitudinally distributed and sleeved in the inner ring of the front middle bearing of the fixed plate. A plurality of helical gears are annularly distributed and located at the side ends of the large conical gear. The rear ends of the plurality of telescopic arm devices are respectively installed at the front ends of the plurality of helical gears. An internal threaded tube is installed on the inner side of the front middle bearing seat of the fixed plate. The rear end of the positioning plate is installed in the internal threaded tube. The fixed plate is installed in the middle of the inner side of the automobile wheel hub. When the vehicle of the present invention is moving, the outermost pointed cone part of the rectangular movable rod can be effectively inserted into the surface of snow or ice, preventing the tire of the vehicle from slipping during movement, thereby effectively improving the safety of the vehicle driving on snowy and icy ground.
Owner:SICHUAN RUISIXIN TECHNOLOGY CO LTD

Work vehicle

PendingUS20250276732A1Steering linkagesFluid steering
A work vehicle includes a vehicle body including a loading portion that is able to load a load, drive wheels located in front and rear on both right and left sides of the vehicle body and steerable separately, a steering angle detector to detect respective orientations of the drive wheels, and a controller configured or programmed to perform drive control to drive each of the drive wheels and control to change the respective orientations of the drive wheels separately. The controller is configured or programmed such that the respective orientations of a first of the drive wheels located on one of right and left sides of the vehicle body and a second of the drive wheels located on the other of the right and left sides of the vehicle body are different from each other when the drive control is stopped.
Owner:KUBOTA CORP

All terrain rigid wheel

The application discloses a kind of all-terrain rigid wheel, including wheel hub and tire, tire includes two beads, multiple ground engaging blades and two tread collars, two beads are respectively symmetrical and installed on the circumferential surface of wheel hub;Multiple ground engaging blades are respectively fixed between two beads and are evenly distributed along the circumference;Two tread collars are respectively fixed on the outer circumferential end edge of two beads.The application can provide support and drive to realize passability under the action of tread collar when driving on hard ground, when driving on muddy ground, ground engaging blade is rotated and medium is transferred by sinking into soft medium, so as to obtain advancing power, can obtain gripping force when gravel, climbing, large driving demand obstacle, realize obstacle and large friction resistance, guarantee escape function, the application simple structure, adaptability is strong to complex terrain, can be used for aerospace, military, agriculture and rescue and other special working conditions under the demand of mobile system all-terrain self-adaptability.
Owner:JILIN UNIVERSITY

Tractor for passing through muddy land

The utility model relates to the technical field of tractors, in particular to a tractor for passing through a muddy ground, the ends, away from a rotating shaft, of two hubs are both fixedly provided with supporting mechanisms, the two supporting mechanisms comprise mounting columns, the ends, away from the hubs, of the two mounting columns are both fixedly provided with round balls, and I-shaped connecting rods are both slidably installed in the two round balls; threaded grooves are formed in the two I-shaped connecting rods, bolts are installed in the two threaded grooves in a threaded mode, and rotary knobs are fixedly installed at the ends, away from the I-shaped connecting rods, of the two bolts. The I-shaped connecting rod moves from bottom to top along the inner wall of the threaded groove, then the rotary knob is rotated clockwise into the threaded groove, the tractor runs again, a supporting force is applied to a hub of the tractor, the hub can be separated from sludge conveniently, the tractor can run in the sludge conveniently, and therefore the function that the tractor can run in the sludge conveniently is achieved.
Owner:BENYE YOUSEN TRACTOR MFG CO LTD

Anti-skid driving wheel mechanism and automatic navigation device

The utility model discloses an anti-skid driving wheel mechanism and an automatic navigation device, wherein the anti-skid driving wheel mechanism comprises a driving motor; a reducer connected to the driving motor in a transmission manner; a hub mounted on a rotating disk of the reducer, which is made of an elastic material; a plurality of grooves are arranged on the surface of the hub in contact with the ground; a plurality of blades are arranged on a side of the hub opposite to the driving motor, and the plurality of blades rotate along with the rotation of the hub. The utility model arranges a plurality of grooves on the hub, and when the grooves begin to contact the ground, the grooves are squeezed and deformed by the ground, so that the grooves perform an anti-skid operation on the ground, thereby enhancing the anti-skid function of the anti-skid driving wheel mechanism to a certain extent; at the same time, the plurality of blades rotate along with the rotation of the hub, thereby improving the heat dissipation performance of the driving motor to a certain extent.
Owner:STANDARD ROBOTS CO LTD

Obstacle crossing tire of walking robot

The utility model discloses an obstacle crossing tire of a walking robot, and belongs to the technical field of tires. Comprising a hub, a fixed tread is fixedly arranged on the outer side of the hub, grooves are formed in the outer side of the fixed tread in an annular array mode, and wheel carriers are arranged on the inner side of the hub in an annular array mode; the plurality of L-shaped supporting plates are arranged corresponding to the grooves, and the horizontal ends of the L-shaped supporting plates are located on the inner sides of the grooves; the adjusting assembly is adopted to drive the L-shaped supporting plate to slide on the outer side of the hub, so that the horizontal end of the L-shaped supporting plate is separated from the inner side of the groove for obstacle crossing work of the robot, the L-shaped supporting plate and the sliding block A are detachably mounted, and after the sliding block A and the wheel frame are slidably mounted, the adjusting stability of the L-shaped supporting plate is guaranteed, the L-shaped supporting plate is conveniently detached and replaced, and the labor intensity of workers is reduced. A traditional moving rod is replaced by the L-shaped supporting plate, and the L-shaped supporting plate and the sliding block A can be detached from each other for independent replacement, so that the influence on the functions of the whole tire is prevented, and the overall service life is prolonged.
Owner:QINGDAO WANSHIXING HANDTRUCK CO LTD

Reconfigurable wheel-track assembly with half-moon configuration

The Reconfigurable Wheel-Track (RWT) is a novel mechanism that allows a wheel to transform into a track, and vice-versa. The wheel permits a vehicle to travel quickly over smooth and semi-rough terrain, then, on-the-fly, transform rapidly into a powered track for crossing extreme terrain. The reconfigurable wheel-track consists of several main components: an outer tire / tread, drive mechanisms for the wheel and track, support mechanisms for the outer tread when in either wheel mode or track mode, and a reconfiguration mechanism that facilitates the transformation from a wheel to a track and vice-versa. The reconfigurable wheel-track includes sensing, actuation, and controls to facilitate efficient and effective transition from wheel to track and vice-versa, and securely maintain each shape.
Owner:CARNEGIE MELLON UNIV

Wheel obstacle crossing mechanism and sweeping robot

The present invention relates to the field of robots, and in particular, to a wheel obstacle surmounting mechanism and a sweeping robot. The wheel obstacle surmounting mechanism comprises a shell, a tire, a driving assembly, a connecting rod and an elastic component. The driving assembly is transmission-connected to the tire; the connecting rod is rotationally connected to the driving assembly, one end of the elastic component is fixedly connected to the shell, and the other end is movably connected to the driving assembly or the connecting rod; or one end of the elastic component is fixedly connected to the connecting rod, and the other end of the elastic component is slidably connected to the driving assembly. When encountering an obstacle, the driving assembly drives the tire to rotate, the connecting rod and the shell move relative to each other, thereby lifting the tire, and the elastic component applies an elastic force to the tire, increasing the friction between the tire and the ground, so that the entire wheel obstacle surmounting mechanism overcomes the obstacle. By arranging the above-mentioned wheel obstacle surmounting mechanism in the sweeping robot, the sweeping robot can well overcome obstacles when moving forward or backward during movement.
Owner:SHEN ZHEN 3IROBOTICS CO LTD

Wheel for vehicle

Provided is a vehicle wheel with which it is possible to obtain a large propulsive force. The vehicle wheel comprises: a wheel portion to be mounted to a hub provided at the end of a drive axle for a drive wheel of the vehicle body; a wheel cover portion detachably mounted to the wheel portion; and a detach / attach mechanism portion that detachably fixes the wheel cover portion to the wheel portion. The wheel cover portion has a drum shape with a thickness in the shaft center direction of the wheel portion, and comprises a plurality of concave puddle portions in the peripheral surface portion thereof. The detach / attach mechanism portion includes: a plurality of mating recess portions provided on the wheel portion; a plurality of mating protrusion portions provided on the wheel cover portion so as to be matable with the plurality of mating recess portions; and a fixing portion that detachably fixes the mating between the plurality of mating recess portions and the plurality of mating protrusion portions. The fixing portion includes: a center screw hole portion provided in the wheel portion on the shaft center, a center hole provided in the wheel cover portion on the shaft center, a center bolt member that threadedly engaged in the center screw hole portion through the center hole; and a stopper screw for preventing the loosening of the center bolt member threadedly engaged in the center screw hole portion.
Owner:NAGAOKA SHINJI

Bidirectional spiral elastic wheel capable of adapting to large gradient and high bearing capacity

The bidirectional spiral elastic wheel comprises a hub, spokes are reversely arranged on the two sides of the hub respectively, namely, the spokes on one side are arranged in a clockwise rotating mode, and the spokes on the other side are arranged in an anticlockwise rotating mode. Each spoke is bent outwards in the rotating direction from the end connected with the hub, the tail end of each spoke is provided with a connecting table matched with the circumferential face of a wheel, and the outer end faces of the connecting tables on the same side are jointly connected with a rubber ring. According to the crawler-type rigid wheel, the simple structure of a common rigid wheel and the road gripping capacity of the crawler-type wheel body are both considered, meanwhile, a driving motor and a transmission part are not needed, and the high-bearing operation capacity of the wheel body in complex terrains and large-gradient terrains is improved while the light weight is kept. When the wheel body rotates, the bottom surface of the wheel body is pressed downwards through bearing deformation cooperation of the rubber ring of the outer ring and the spokes, so that the contact area between the bottom surface of the wheel body and the ground is increased, and the function of approaching a crawler belt is achieved.
Owner:TIANJIN UNIV

Outdoor power machine

PendingEP4584095A4Lawn-mowersAxle units
An outdoor power machine includes a chassis (16) including first and second main frame rails (18); two or more drive wheel assemblies (30) physically mounted to the chassis (16), each drive wheel assembly (30) coupled to an electric motor; an electrical power pack (28) configured to supply electric energy to the electric motors; at least one steer wheel (38) pivotally mounted to the chassis (16); a mowing deck assembly (200); and a deck lift (230) connecting the mowing deck assembly (200) to the chassis (16), the deck lift (230) including: a first lift assembly (240) connected to the first main frame rail (18) of the chassis (16) at a first rotation point (286,486); a second lift assembly (242) connected to the second main frame rail (18) of the chassis (16) at a second rotation point (342, 542); wherein the first and second lift assemblies (30) are separated at the first and second rotation points (286,486; 342, 542) and the first and second rotation points (286,486; 342, 542) are not interconnected.
Owner:GLOBE (JIANGSU) CO LTD