31results about How to "Reasonable stiffness" patented technology

The invention discloses an intelligent electric car testing bench used for environment sensing configuration and testing. The intelligent electric car testing bench comprises a frame body, three-axis moving assemblies, three-axis rotating assemblies, environment sensors, a middle sensing support, three-dimensional calibration assemblies and two-dimensional calibration assemblies, wherein the plurality of three-axis moving assemblies are arranged on the frame body, the middle sensing support is arranged on the middle part of the frame body, the middle sensing support is also provided with a plurality of three-axis moving assemblies, the three-axis rotating assemblies are arranged on the three-axis moving assemblies, the environment sensors are arranged on the three-axis rotating assemblies, and the three-dimensional calibration assemblies and the two-dimensional calibration assemblies are corresponding to the environment sensors. The intelligent electric car testing bench has the advantages that on-loop design of calibration and configuration schemes and related testing of vehicle environment sensors can be realized on expected vehicle types; data of the environment sensors under different calibration or configuration schemes is stored, and the calibration content under a plurality of conditions are further completed; in addition, the cost is lowered, the efficiency is improved, the materials corresponding to parts are reasonably selected, and the service lifetime is long.

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 robot rigidity design method based on a rigidity model and a terminal. The robot rigidity design method comprises the following steps: establishing the robot rigidity model according to robot structure and rigidity design parameters; selecting a reference pose which conforms to the robot rigidity design; constructing a rigidity optimization comprehensive model which comprises rigidity comprehensive evaluation functions, constraint conditions and initial values; and solving the rigidity optimization comprehensive model to acquire an optimal solution to a rigidity design variable. Through the robot rigidity design method, an optimal distribution scheme of robot rigidity parameters can be found under the robot tail-end rigidity constraint; the robot rigidity and thestructure design can be more reasonable; and the robot rigidity design method has important significance in reducing the robot manufacturing cost.

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 a wing of a micro ornithopter. According to the present invention, a main beam is level and straight; the front edge points of five wing ribs are fixed on the main beam; the wing rib No.1, the wing rib No.2 and the wing rib No.3 are perpendicular to the main beam; the wing rib No.4 and the wing rib No.5 form acute angles with the tip part direction of the main beam; the chord lengths of the wing rib No.1, the wing rib No.2 and the wing rib No.3 are the same; the chord length of wing rib No.4 and the chord length of the wing rib No.5 are sequentially reduced, and are shorter than the chord length of the wing rib No.1; an assistant beam is an arc structure; the outer edge point of the assistant beam is fixed on the main beam between the end point of the tip part of the main beam and the rear edge point of the wing rib No.5, the root part of the assistant beam passes through the rear half part of the wing rib No.1, the assistant beam contacts the positions corresponding to the five wing ribs and is fixed with the positions corresponding to the five wing ribs; the main beam, the assistant beam and the wing ribs form a wing structure frame, and a skin is adhered above the frame to form a complete wing. With the present invention, the stiffness distribution of the whole wing flatly transits, the structure continuity is good, the good force loading property is provided, the structure is simple, and the wing of the present invention is convenient to manufacture.

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 relates to an electric vehicle battery system that can be increased or decreased by using the lower vehicle body as a battery box, comprising a single battery pack (100), a main control box (200), a connecting wire harness (300), and an underfloor (400) , the upper layer of the floor, the lower body (600), and the sealing plate (700), which are characterized in that: the single battery pack (100) is connected to the lower body (600) by bolts (108), and the main control box (200) is connected by bolts (108) is connected with the lower car body (600), the lower floor (400) is welded together with the lower car body (600), relatively fixed, and the single battery pack connector (301) is installed on the lower floor (400) by threaded connection. ), the main control box connector (303) is also installed on the lower floor (400) through threaded connection, and the present invention uses the lower vehicle body as the box body of the battery box, so that the theoretical design of the stiffness and strength of the whole vehicle is more reasonable; Inventing multiple single battery packs to form a battery system reduces the requirements for the structure and installation structure of the single battery packs.

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 stiffness model-based robot stiffness design method and a terminal. The method includes the following steps: establishing a robot stiffness model according to the robot structure and stiffness design parameters; selecting a reference pose for robot stiffness design; constructing a stiffness comprehensive evaluation The stiffness optimization comprehensive model of functions, constraints and initial values; the optimal solution of the stiffness design variables is obtained by solving the stiffness optimization comprehensive model. The invention can find the optimal allocation scheme of the robot stiffness parameters under the constraint of the robot end stiffness, makes the robot stiffness and structural design more reasonable, and has great significance for reducing the manufacturing cost of the robot.

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 discloses a wing of a micro ornithopter. According to the present invention, a main beam is level and straight; the front edge points of five wing ribs are fixed on the main beam; the wing rib No.1, the wing rib No.2 and the wing rib No.3 are perpendicular to the main beam; the wing rib No.4 and the wing rib No.5 form acute angles with the tip part direction of the main beam; the chord lengths of the wing rib No.1, the wing rib No.2 and the wing rib No.3 are the same; the chord length of wing rib No.4 and the chord length of the wing rib No.5 are sequentially reduced, and are shorter than the chord length of the wing rib No.1; an assistant beam is an arc structure; the outer edge point of the assistant beam is fixed on the main beam between the end point of the tip part of the main beam and the rear edge point of the wing rib No.5, the root part of the assistant beam passes through the rear half part of the wing rib No.1, the assistant beam contacts the positions corresponding to the five wing ribs and is fixed with the positions corresponding to the five wing ribs; the main beam, the assistant beam and the wing ribs form a wing structure frame, and a skin is adhered above the frame to form a complete wing. With the present invention, the stiffness distribution of the whole wing flatly transits, the structure continuity is good, the good force loading property is provided, the structure is simple, and the wing of the present invention is convenient to manufacture.

The invention discloses an integral wheel for a locomotive, comprising a hub, a spoke plate and a rim. The spoke plate is a curved structure, one end of the spoke plate is connected with the wheel hub, the other end of the spoke plate is connected with the rim, and the end of the rim is far away from the spoke plate. With rim and tread. The wheel of the present invention can be applied to railway locomotives, is suitable for tread braking or axle disc braking, and is easy to mass produce. The spoke includes a hub-spoke transition area, a spoke main body and a rim-spoke transition area, the hub-spoke transition area is located between the hub and the spoke main body, and the rim-spoke transition area is located between the rim and the spoke main body . Both the hub-spoke transition area and the rim-spoke transition area are circular arc structures. The circular arc direction of the hub-spoke transition area is opposite to the circular arc direction of the rim-spoke transition area. The two ends of the web body are respectively tangent to the hub-web transition area and the rim-web transition area. The invention also discloses a design method for the integral wheel of the locomotive.

The invention discloses a constraint guiding type railway vibration damping fastener structure. An under-board elastic backing board of the structure is laid on a sleeper, and a rail bearing iron backing board is mounted on the upper surface of the under-board elastic backing board in a clamped mode. An annular spacer ring with the shape being matched with the shape of the outer contour of the middle of the rail bearing iron backing board is protruded from the upper surface of constraint insulation sleeve, and the rail bearing iron backing board is sleeved with the constraint insulation sleeve through the annular spacer ring. An outer frame constraint iron backing board is mounted above the constraint insulation sleeve in a clamped mode, and the inner contour of the outer frame constraint iron backing board is matched with the outer contour of the annular spacer ring. The outer frame constraint iron backing board, the constraint insulation sleeve, the rail bearing iron backing board and the under-board elastic backing board are levelly pressed on the sleeper or a track bed in a buckling mode through spiral track spikes, and the rail bearing iron backing board is constrained through the outer frame constraint iron backing board and the constraint insulation sleeve. An under-rail elastic backing board is placed on the upper surface of the rail bearing iron backing board, and a steel rail is laid on the under-rail elastic backing board. The steel rail is compressed on the under-rail elastic backing board through gauge cushions and elastic strips. Vibration and noise generated at the time of passing of a train can be effectively lowered, and taking comfort is improved.

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 belongs to the technical field of chasses for mobile police offices and particularly relates to a chassis for a fuel type mobile police office. The chassis comprises a chassis frame, wherein the chassis frame is a framework formed by riveting variable-section cross beams; and the chassis further comprises a power system and a steering system which are arranged at the front end of the chassis frame, a transmission system arranged in the middle of the chassis frame and a brake system arranged on the chassis frame. Under the conditions that structures and weight of various police equipment of the police office have large differences, stress concentrations in different positions are different, the cross beams are required to have different cross sections, and the chassis frame is formed by riveting the variable-section cross beams, so that materials can be saved on the basis that the strength is guaranteed, weight is reduced, a chassis frame assembly has the reasonable hardness and softness, the hardness and the softness are combined, the stress is reduced, the overall carrying performance of the frame is improved, the dead weight of the frame is reduced, and the effective load of the whole vehicle is increased.

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 discloses a vehicle engine suspension structure, comprising a suspension bracket, a suspension frame body, a support nail arranged on the suspension bracket, and a ferrule set on the suspension frame body and allowing the support nail to pass through. Rubber main spring, the rubber main spring is located above the suspension bracket, and the rubber main spring adopts the structure of four ribs. In the vehicle engine mount structure of the present invention, the direction of the rubber main spring is adjusted to be consistent with the Z direction of the whole vehicle, and the space required in the Z direction is greatly reduced by selecting the disc type; the rubber main spring adopts the structure of four ribs , the stiffness in all directions is more reasonable.

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 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.

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.

The invention discloses an asphalt road paving method, and belongs to the field of road paving methods. The asphalt road paving method disclosed by the invention comprises five steps: a first step of performing measurement and alignment, comprising the steps of re-measuring a guiding line, a center line and a benchmark, performing cross section inspection and supplementary measurement, performing staking out in construction before the start of the construction, staking out specific locations such as the edges of a roadbed, slope openings, slope toes, side ditch berms and soil pits, indicating contours of the specific locations, clearing away trees, weeds, shrubs and the like in the range of a route land, and digging the roadbed; and other four steps. The asphalt road paving method disclosed by the invention has the characteristics of being high in flatness, free from situations such as insufficient local degree of compaction and serious temperature segregation, good in road surface temperature sensing performance, good in elasticity and aging resistance, not easy to melt and flow at high temperature, and good in toughness and not easy to break at low temperature, the use requirements of high-level roads can be met, and besides, the high temperature of a road surface can be fully utilized for solar power generation.