31results about How to "Reasonable stiffness" patented technology

The invention discloses a vehicle engine suspension structure which comprises a suspension bracket, a suspension framework body, a bearing pin arranged on the suspension bracket and a rubber main spring which is arranged on a sleeve ring of the suspension framework body, wherein the bearing pin passes through the rubber main spring which is positioned above the suspension bracket and is of a four-rib structure. According to the vehicle engine suspension structure disclosed by the invention, the direction of the rubber main spring is regulated to be consistent with the Z direction of a whole vehicle, and the needed space in the Z direction is greatly reduced as a disc type is selected; the rubber main spring is of a four-rib structure, so that the rigidity in each direction is relatively reasonable.

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 suspension system for an electric vehicle. The suspension system comprises side suspension soft cushion assemblies and a rear suspension soft cushion assembly and further comprises a front cabin crossbeam assembly and a reducing agent distribution device. The side suspension soft cushion assemblies are arranged at the two ends of the front cabin crossbeam assembly in pairs. The reducing agent distribution device comprises reducing agent tank, delivery pipeline and reducing agent delivery pumps. The side suspension soft cushion assemblies and the rear suspension soft cushion assembly are connected with the reducing agent tanks in parallel through the delivery pipelines. The reducing agent delivery pumps are arranged between the reducing agent tanks and the delivery pipelines. The arranged reducing agent distribution device can automatically infuse a reducing agent to all the suspension soft cushion assemblies, so that the elasticity of a polymer elastic material in the suspension soft cushion assemblies is restored under the effect of the reducing agent after the polymer elastic material is used for a period of time and consequently fatigued and aged due to the influences of high temperature and long-term vibration stress, it is guaranteed that all the suspension soft cushion assemblies keep the good work performance for a long time, the integration degree is high, the front cabin space arrangement is optimized, and meanwhile the damping performance is improved.

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.

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 a cross-beam structure and a drilling machine, and relates to the field of engineering machinery. The cross-beam structure and the drilling machine are used for optimizing the cross-beam structure, and on the premise that the bearing capacity of the cross-beam structure is ensured, the lightweight of the cross-beam structure is achieved. The cross-beam structure is used for being installed at an external arm of the drilling machine and comprises an installation part and a stress part, the installation part is constructed to protrude towards the direction which is far away from the external arm of the drilling machine, and the stress part is installed on the protruding surface of the installation part. The cross-beam structure provided by the technical scheme comprises the protruding installation part and the stress part arranged on the protruding surface of the installation part, compared with an existing cross-beam structure, under the condition that the bearing capacities are the same, the cross-beam structure provided by the embodiment is lowest in weight, and the lightweight of the cross-beam structure can be achieved.

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 wavy stopping block with a wearing plate and a method for preventing a steel spring from being broken. The vertical stopping block is positioned in the steel spring and comprises rubber, the wearing plate and a base. The wearing plate is embedded in the top of the rubber, and annular straight sections are arranged at the upper end of the rubber; annular arc sections are arranged below the annular straight sections and include inwardly sunken annular arc sections and outwardly protruded annular arc sections, and the inwardly sunken annular arc sections and the outwardly protruded annular arc sections are alternately distributed; the base is arranged at the lower end of the rubber; a concave hole is formed in the bottom of the rubber. The wavy stopping block and the method have the advantages that the stiffness, the variable stiffness and limiting positions of the vertical stopping block can be adjusted, so that vertical load borne by the steel spring can be reduced, metal fatigue of the steel spring in locomotive running procedures can be relieved, and accordingly the steel spring can be prevented from being broken; the vertical stopping block is firm in structure and has little possibility of being damaged, the wearing plate, the rubber and the base are tightly combined with one another and have little possibility of being loosened or separated, and the wavy stopping block and the method are wide in application range and high in universality.

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 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.