31results about How to "Reasonable stiffness" patented technology

A body structure of the lower part of an automobile comprises a front bumper beam, a front longitudinal beam, a side threshold, a lower longitudinal beam of a front bottom plate, a front beam of a back bottom plate, a middle beam of the back bottom plate, a back longitudinal beam, a back bumper beam, the back bottom plate and the front bottom plate; wherein, the front longitudinal beam is directly connected with the lower longitudinal beam of the front bottom plate and the back longitudinal beam; the back longitudinal beam is connected with the side threshold in the place where the front bottom plate and the back bottom plate lap, and are reinforced by connecting the front beam of the back bottom plate. The adoption of the body structure of the invention can effectively improve the bending rigidity and the torsional stiffness of the whole automobile, thus being beneficial to improving the carrying capacity of the whole automobile, reducing local fatigue and damage caused by insufficient rigidity; moreover, when impacted fiercely, the body structure can rapidly transfer and disperse energy so as to prevent passengers from being shocked, thus obtaining the function of protecting passengers and improving the safety performance of the automobile.

The invention discloses a vehicle-mounted external driving robot for a man-machine co-driving and unmanned driving technology and test. The vehicle-mounted external driving robot comprises a primary driving steering assembly, a secondary driving steering assembly, a primary driving pedal assembly, a secondary driving pedal assembly and a control system assembly, wherein the primary driving steering assembly is assembled on the steering system of an original vehicle, and is coaxial with the original steering system the original vehicle to transmit; the secondary driving steering assembly is arranged at one side of the primary driving steering assembly; the primary driving steering assembly is horizontally placed on primary driving floor of the original vehicle, and is in bolt connection with a primary driving seat of the original vehicle; the primary driving pedal assembly is in fastening connection with a pedal system of the original vehicle; and the primary driving steering assembly,the secondary driving steering assembly, the primary driving pedal assembly and the secondary driving pedal assembly are connected with the control system, and are controlled by the control system assembly to work. The vehicle-mounted external driving robot has the beneficial effects of greatly reducing real vehicle test cost and improving efficiency; and the part corresponding material selectionis reasonable, and the service life is relatively long.

The invention discloses a high-precision virtual reality intelligent driving simulator group for universal vehicle types and driving scenes, wherein the simulator group comprises a main vehicle simulator single unit, a plurality of traffic vehicle simulator single units, a controller assembly, a sensor in-ring assembly and an actuator in-ring assembly, the main vehicle simulator single unit and the traffic vehicle simulator single unit have the same mechanical structures and are fixedly connected with the ground infrastructure through a lower motion platform assembly, the plurality of trafficvehicle simulator single units are arranged around the main vehicle simulator single unit, the main vehicle simulator single unit and the plurality of traffic vehicle simulator single units are tangent to each other in an enveloping space formed in the space motion limit of the part above the ground infrastructure, the controller assembly is electrically connected with the main vehicle simulator single unit, the plurality of traffic vehicle simulator single units, the sensor in-ring assembly and the actuator in-ring assembly respectively, and the simulator group has the advantages that the corresponding materials of the parts are reasonably selected, and the service life is higher; the test and verification period based on large-scale road tests is shortened.

The invention discloses an orthogonal magnetic circuit radial-axial-integrated magnetic bearing based on a symmetrical self-lubricating flexible backup bearing structure. A radial magnetic bearing coil of the orthogonal magnetic circuit radial-axial-integrated magnetic bearing is mounted on a stator tooth set of a stator iron core; two radial rigid magnetic-conductive rings are mounted at an outerdisc of the stator iron core so as to prevent the short circuit problem of permanent magnetic circuits, wherein a certain gap exists between the two radial rigid magnetic-conductive rings; an axial magnetic bearing coil is located at a thrust disc of a rotor shaft and mounted in a cavity formed by the two magnetic-conductive rings; graphite rings and backup bearing skeletons which achieve the axial self-lubricating effect are arranged on the two sides of the thrust disc correspondingly; and a radial backup bearing skeleton and a graphite internal convex ring are arranged in an inner ring cavity of a radial flexible magnetic conductive ring for achieving the radial self-lubricating effect. By adopting the technical means that axial and radial electromagnetic circuits are combined into a whole, and a radial magnetic bearing and a backup bearing are combined into a whole, the technical problem that traditional magnetic bearings are low in coaxiality is solved.

The invention discloses an asphalt road, and belongs to the field of roads. The asphalt road comprises a roadbed, a subgrade and a road surface. The subgrade is arranged in the roadbed and is provided with a horizontal layered structure. The subgrade is provided with a first mixed slag layer, a rubble layer, a second mixed slag layer and a concrete layer from bottom to top, and a geogrid and low-voltage shielded wires are arranged in the second mixed slag layer. A plurality of solar photovoltaic modules are arranged in the middle of the road surface in the road extension direction, and the solar photovoltaic modules are connected with a photovoltaic inverter through the low-voltage shielded wires. The asphalt road has the characteristics of being high in flatness, capable of avoiding the circumstances of insufficient partial compaction degrees, serious temperature segregation and the like, good in road surface temperature sensing property, good in elasticity and ageing-resistant performance, not prone to melting or flowing at high temperatures, good in toughness and not likely to be cracked at low temperatures, capable of meeting the using requirements of high-grade roads, and capable of fully utilizing high temperatures of the road surface to conduct solar power generation.

The invention provides a bent spoke rail wheel applied to the technical field of railway vehicle parts. Each wheel spoke (2) of the bent spoke rail wheel is arranged of a curved surface structure, oneend of each spoke (2) is connected with a hub (1), the other end of each spoke (2) is connected with a rim (3), each wheel spoke (2) comprises a spoke side face I (4) and a spoke side face II (5), multiple side face I curved surfaces (6) are arranged on each spoke side face I (4) from the end connected with the hub (1) to the end connected with the rim (3), and multiple side face II curved surfaces (7) are arranged on each spoke side face II (5) from the end connected with the hub (1) to the end connected with the rim (3). By the adoption of the bent spoke rail wheel, the good braking performance and easy volume production are guaranteed, meanwhile, the wheel is small in weight, the reasonable strength, rigidity and braking thermodynamic performance of the wheel are guaranteed, and competitiveness is improved.

The invention discloses an orthogonal magnetic circuit radial magnetic suspension bearing based on a symmetric self-lubricating flexible auxiliary bearing structure. A rotor shaft (6) of the magneticsuspension bearing is sleeved with a rotor core (7), and the rotor core (7) is located on a stator tooth set (8A) of a stator core (8). A coil is mounted on the stator tooth set (8A) of the stator core (8), and two radial rigid magnetic conducting rings are mounted on an outer disc of the stator core (8). A certain clearance exists between the two radial rigid magnetic conducting rings in the axial direction to prevent the short circuit of a permanent magnetic circuit. A graphite inward protruding ring cooperates with a radial auxiliary bearing framework, is arranged in an inner ring cavity ofa radial flexible magnetic conducting ring and is compressed by a radial bearing check ring, and the graphite inner ring is prevented from axially sliding. A permanent magnet is mounted between the radial rigid magnetic conducting rings and the radial flexible magnetic conducting ring. The magnetic suspension bearing is divided into two parts in bilateral symmetry around the stator core in the axial direction, the design method that a radial magnetic bearing and an auxiliary bearing are combined into a whole is adopted, and the technical problem that the coaxiality of a traditional magnetic bearing and auxiliary bearing is low is solved.

The invention discloses a new-generation passenger vehicle-mounted internal and external integrated braking system. The integrated braking system comprises an external brake system assembly, an internal brake system assembly, an integrated control system, an vehicle body and frame assembly and a sensor assembly, wherein the external brake system assembly, the internal brake system assembly, the integrated control system and the sensor assembly are all assembled on the vehicle body and frame assembly, the external brake system assembly, the internal brake system assembly and the sensor assemblyare all connected to the integrated control system. The sensor assembly is further connected to the internal brake system assembly, the sensor assembly can transmit collected data to the internal brake system assembly and the integrated control system in real time, and the integrated control system controls the work of the external brake system assembly and the internal brake system assembly. Thebeneficial effects are that: through reasonable matching of the integrated control system and the sensor assembly, cooperative operation and integrated control of all the assemblies in the vehicle-mounted internal and external braking system are realized.

The invention relates to a water tank of a mine 100t electric wheel sprinkler. The water tank comprises a middle water tank assembly, a middle bottom plate assembly, a left water tank assembly and a right water tank assembly, wherein the middle water tank assembly is formed by welding a cover plate I, a front plate I, a longitudinal reinforcing separating plate I, a transverse reinforcing separating plate I, a tail plate, a filtering net device and a lifting lug I, the middle bottom plate assembly is formed by welding a middle bottom plate, a front longitudinal beam, a back longitudinal beam, a transverse reinforcing groove beam I, a rotary support seat assembly and a lifting lug IV, the left water tank assembly is formed by welding a left bottom plate assembly, a longitudinal reinforcing separating plate II, a transverse reinforcing separating plate II, a cover plate II, a side plate II, a front plate II, a back plate II and a lifting lug II, and the right water tank assembly is formed by welding a right bottom plate assembly, a longitudinal reinforcing separating plate III, a transverse reinforcing separating plate III, a cover plate III, a side plate III, a front plate III, a back plate III and a lifting lug III, and elliptical holes and circular holes are respectively formed in the reinforcing separating plates in a staggered way. The water tank of the mine 100t electric wheel sprinkler has the advantages that the surge impact preventing function is realized, the structure strength is proper, the rigidity matching is reasonable, and the running is stale and reliable.