68results about How to "Low center of mass" patented technology

The invention relates to a vehicle frame with full load, wherein the whole vehicle, via front surround skeleton, back surround skeleton, left surround skeleton, right surround skeleton, top cover skeleton and bottom support, forms one integrated frame, to improve the fastness of frame. Via each node, upright post, longitudinal beam, incline support, horizontal bema, bended beam, or plates, the front and back of frame are through, the upper and lower are through, and the left and right are connected to form a closed force loop; therefore, the force can be distributed to everywhere of frame, to be functioned uniformly and avoid supporting on one point; and the structure is formed by rectangle steel tubes whose strength is 3-6 times of common vehicle with reduced weight. With said invention, the deformation of impacted vehicle is minimum to protect passengers.

The invention discloses a super-heavy mining dump truck, which belongs to the field of mining dump trucks. The super-heavy mining dump truck comprises a chassis and a truck body, wherein the chassis comprises a transmission system, a running system, a steering system and a braking system; the truck body comprises a cab and a container. The mining dump truck is characterized in that: a frame in the running system is a welded box type variable section frame without a secondary frame; the transmission system comprises a 6*4 mechanical transmission driving device; a middle axle and a rear axle in the running system form a dual driving axle; a rear suspension consisting of the middle axle and the rear axle in the running system is a hydropneumatic balance suspension with an energy storage adjusting mechanism; front wheels are single tires with the tire nominal section width, rim nominal diameter and tread ply of between 33.00-51-58 and 27.00-49-48; and middle wheels and rear wheels are double tires with the tire nominal section width, rim nominal diameter and tread ply of between 24.00-49-48 and 21.00-35-36. The invention is mainly used for manufacturing a domestic super-heavy mining dump truck which is suitable for domestic working conditions, has high efficiency and is low in using cost.

The invention discloses a force-bearing integrated structure with honeycomb-sandwich storage boxes. The force-bearing integrated structure comprises a plurality of storage boxes connected mutually, wherein the storage boxes are uniformly paved along the circumference; adjacent storage boxes are mutually embedded, flanges are connected by the storage boxes, and clamping blocks and wrapping belts are mutually connected; the load acting positions of the top part and the bottom part of each storage box are respectively provided with a claw-shaped force-transferring structure in an embedded manner; and the claw-shaped force-transferring structures are respectively connected with upper flanges and lower flanges. Different from the traditional satellite design that the actions of structure subsystems and propelling subsystems are completely separated and independent, main force-bearing structures of the structure subsystems and the storage boxes of the propelling subsystems are shared by the force-bearing integrated structure with the storage boxes, so that a spacecraft has compacter appearance and distribution, and further the mass of the structure subsystems and the mass of the propelling subsystems are reduced.

The invention provides a satellite propulsion service cabin structure which is suitable for a satellite structure family system with large bearing and multi-load adaptive capacity requirements. According to the cabin structure, a main force bearing structure is composed of a satellite-rocket butt joint ring and beam-slab composite structural slabs, the beam-slab composite structural slabs form three sets of W-shaped plane truss units, and in a top view, the three sets of planes intersect at the central axis and are distributed in a star shape. According to the cabin structure, the four large spaces divided by the star-shaped truss are used for installing the storage tank, the lower portion of the storage tank is directly connected with the butt joint ring, the upper portion of the storagetank is connected with the truss joint through the pull rod, and the structural weight is greatly reduced through the storage tank connecting mode. The two smaller spaces of the invention allow to beused to mount gas cylinders. By means of the structure, the large bearing capacity of the propelling service cabin is ensured.

The invention relates to a dual-fuel transport refueling method and a transport refueling truck. The dual-fuel transport refueling method comprises the following steps of: 1) preparing a fuel transport refueling truck, retrofitting a chassis of the fuel transport refueling truck by using an automotive chassis, and arranging a power takeoff, wherein the inside of an oil tank of the fuel transport refueling truck is divided into front and rear independent closed compartments through a partition plate, two kinds of oils are simultaneously filled in the two closed compartments, and a plurality of refueling guns are arranged at oil channel outlets of the two closed compartments; 2) determining oil of a vehicle which is required to be refueled, and parking the vehicle which is required to be refueled within the working range of the refueling guns of the corresponding closed compartment; 3) taking out one refueling gun which corresponds to the oil, and inserting into an oil tank of the vehicle which is required to be refueled; 4) starting an engine, wherein the engine of the automotive chassis drives an oil pump to work through the power takeoff so as to fill fuel in the closed compartment into the oil tank of the vehicle which is required to be refueled by using the refueling gun; and 5) after the operation is finished, shutting down the engine, and placing the refueling gun at the original position. The transport refueling truck can simultaneously fill two different kinds of fuels, has high motility and safety, and can refuel fire fighting vehicles at any time.

The invention provides a space-based large-diameter multi-constrained extrasolar terrestrial planet detector structure. The structure comprises a platform service module, a platform propelling module, a payload, a star sensor and a platform bottom plate; the back light path part of the payload is embedded into the platform service module, the star sensor is installed on a high-rigidity back plate of the payload, therefore, the attitude measuring error is decreased, and the attitude control precision of a whole detector is improved; intra-detector subsystem single units of the detector are arranged on the obverse side of the platform bottom plate, and thrusters and air cylinders are arranged on the reverse side of the platform bottom plate. According to the space-based large-diameter multi-constrained extrasolar terrestrial planet detector structure, by means of integrated design of a load platform, the mass center of the whole detector can be lowered, and the enveloping limiting requirement of a launch vehicle fairing can be met; meanwhile, attitude sensitive devices such as the star sensor are arranged on the high-rigidity back plate of the payload, therefore, the attitude measuring error can be decreased, and the attitude control precision of the whole detector can be improved. The structure can be effectively applied to layout design of a similar detector structure with a large-diameter multi-constrained space camera.

The invention discloses a rhombus four-wheel gantry type high-ground-clearance cultivator. The rhombus four-wheel gantry type high-ground-clearance cultivator comprises a chassis, a front cultivator frame, a rear cultivator frame, a left side arm and a right side arm, wherein the front cultivator frame, the rear cultivator frame, the left side arm and the right side arm are respectively located above the chassis, the left side arm is connected with the front cultivator frame, and the right side arm is connected with the rear cultivator frame. Four wheels arranged at the bottom of the chassis are distributed in a rhombus shape. The four wheels comprise the front wheel, the rear wheel, the left wheel and the right wheel, wherein the front wheel is located at the front end of the front cultivator frame, the rear wheel is located at the rear end of the rear cultivator frame, the left wheel is located outside the left side arm, the right wheel is located outside the right side arm, the left wheel is connected with the left side arm through a left wheel hydraulic motor, the right wheel is connected with the right side arm through a right wheel hydraulic motor, the front wheel and the rear wheel are not only steering wheels but also driving wheels, and the left wheel and the right wheel are driving wheels. The rhombus four-wheel gantry type high-ground-clearance cultivator has the advantages that the height of center of mass is small, the stability is good, and the rhombus four-wheel gantry type high-ground-clearance cultivator is suitable for operation of crops with different planting line intervals.

The invention provides a hybrid propulsion cabin of a small high-orbit satellite common platform. The hybrid propulsion cabin comprises a platform cabin main force-bearing structure configured to provide an accommodating space, wherein the platform cabin main force-bearing structure comprises a satellite-rocket connecting ring; a plurality of storage tanks which are arranged in the accommodating space and are directly loaded on the satellite-rocket connecting ring; and an air path assembly which is arranged in the accommodating space so that the load of the air path assembly is transmitted tothe satellite-rocket connecting ring through the platform cabin main force bearing structure.

The invention relates to a polishing nose which is a main operation member of a polishing machine using abrasive cloth as a main grinding material. The polishing nose comprises a nose frame, a power device, a rotating device, an abrasive belt device, a speed regulation device, a cleaning device and a dust-collecting device, wherein the nose frame is used for bearing each nose assembly, the power device drives each movement part to work, the rotating device drives an abrasive belt device to rotate, the abrasive belt device is used for dragging the abrasive belt to circularly move, the speed regulation device is used for regulating the circulating speed and the circulating direction of the abrasive belt; the abrasive belt is in contact and grinding with a ground surface; and the cleaning device is used for cleaning dust adhered on the abrasive belt, and covering dust and sucking the dust by means of a dust-sucking device at the background.

The invention discloses a special chassis with a gate-type transmission system for a snow sweeper. The special chassis comprises an engine, a transmission, a plurality of transmission shafts, a snow removing mechanism, a transfer case, a front axle and a rear axle. The engine is installed below a cab of a whole vehicle body. The transmission is mounted at an output end of the engine; the transmission shafts comprise a transmission shaft A, a transmission shaft B, a transmission shaft C, a transmission shaft D and a transmission shaft E; the snow removing mechanism is mounted in the middle of the vehicle body; included angles between the transmission shafts B and E and a horizontal plane are reduced compared with that of an existing transmission shaft; abrasion of the transfer case and an axle internal gear is decreased so that a failure rate is greatly reduced, transmission stability is improved, and meanwhile, a noise is reduced; and due to a fact that the included angle between the transmission shaft B and the transmission shaft E is reduced to be smaller than 7 degrees, a height of the main frame and the height of the cab of the vehicle body are decreased, the mass center of thewhole vehicle is reduced, running stability of the vehicle is improved, and meanwhile workers can get on and off the vehicle more conveniently.

The invention discloses a whole vehicle arrangement structure of a hydrogen fuel cell logistics medium truck. The structure comprises a vehicle frame and a cab, and a cargo compartment is arranged behind the cab. A hydrogen fuel cell system is arranged on the vehicle frame below the cab, a concave area is arranged below the front end of the cargo compartment to place a hydrogen storage system, andthe hydrogen storage system is arranged on the vehicle frame behind the cab through a frame. According to the whole vehicle arrangement structure of the hydrogen fuel cell logistics medium truck, through excellent arrangement and structure combination, an occupied cargo carrying space can be effectively reduced, a mass center of the whole vehicle is reduced, assembly and use convenience is improved through reasonable space arrangement, and the whole vehicle arrangement structure has high practicability and good application prospects.

The invention relates to a layered frame for a launching vehicle, which comprises a bottom framework assembly, a middle framework assembly, a left top layer framework assembly and a right top layer framework assembly; the middle layer framework assembly is welded and fixed with the bottom layer framework assembly through lower ends of a supporting upright post and a hanging upright post on a second left longitudinal connecting beam and a second right longitudinal connecting beam; the left top layer framework assembly and the right top layer framework assembly are welded and fixed with the upper ends of the supporting upright post and the hanging upright post; the left end and the right end of a first cross connecting beam of the bottom layer framework assembly are welded and fixed with the left top layer framework assembly, the right top layer framework assembly and the middle layer framework assembly through a left connector and a right connector correspondingly. The layered frame has the advantages of being light in weight, big in load, stable in structure, and relatively low in centroid; the safety of the launching vehicle and the high-speed driving stability are effectively improved.

The invention provides an automobile battery carrying board assembly structure. The structure comprises two parts of a left battery carrying board assembly (1) and a right battery carrying board assembly (2). The left battery carrying board assembly (1) and the right battery carrying board assembly (2) are symmetrically arranged. The left battery carrying board assembly (1) comprises a left battery carrying board subassembly (3), a left battery carrying board beam structure assembly (4), a battery installation beam assembly (5) and a left shock absorption sealing pad (6); and the left batterycarrying board subassembly (3), the left battery carrying board beam structure assembly (4), the battery installation beam assembly (5) and the left shock absorption sealing pad (6) are in lap joint sequentially. By the adoption of the provided automobile battery carrying board assembly structure, a power battery pack can be firmly fixed to a lower vehicle body of a vehicle body and can be well protected.

The invention belongs to the field of vehicle manufacture and particularly relates to a mineral dumper which comprises a frame, a rear axle and a container. A coaming of the container is strengthened by a quadrilateral framework main beam and a quadrilateral framework auxiliary beam. Two ends of two lifting oil cylinders are respectively supported on the frame and the front portion of the container. Two bottom support bases of a container rear beam, the frame and a rear overhang are connected to form two points, and the frame and the container are integrally connected through the two connection points. In addition, an oscillating shaft single longitudinal arm structure and a single longitudinal arm independent suspension of a double-lug hydro-pneumatic spring are adopted. The mineral dumper has the advantages that a force transmission path of load is optimized, the load is borne by the frame and the container together and is directly transmitted to the ground, the frame only bears small pressure and is designed to be light in weight, self-weight of the whole dumper is reduced, unladen mass utilization coefficient is high, oil consumption rate of the dumper is reduced, and manufacture cost and operation cost of the mineral dumper are reduced.

The invention discloses a vertical highway transport vehicle and relates to a highway transport vehicle used for transporting an aerospace vehicle. The vertical highway transport vehicle can meet the requirements for the high stability, the high smoothness and the high maneuverability of products in various states in the vertical transportation process. The vertical highway transport vehicle comprises a vehicle frame assembly (1) and a traction mechanism (2). The vehicle frame assembly comprises a vehicle frame body and widened beams (3). The vehicle frame body comprises a front bearing face (101), a middle bearing face (102) and a rear bearing face (103) which are sequentially and fixedly connected. The middle bearing face is lower than the front bearing face and the rear bearing face. The two sides of the middle bearing face are each provided with one widened beam. A front wheel set (4) and a rear wheel set (5) are installed below the front bearing face and the rear bearing face through slewing bearings respectively. Traction support lugs (7) are arranged on the front wheel set and the rear wheel set and used for connecting the traction mechanism.

The invention provides an anti-rollover transport tanker. The anti-rollover transport tanker comprises a frame, an axle mounted below the frame, and a hydraulic interconnection suspension for connecting the frame with the axle, wherein the hydraulic interconnection suspension comprises two suspension mechanisms and a connecting mechanism, the two suspension mechanisms are arranged on two sides ofthe frame respectively, each suspension mechanism comprises at least one damping valve block and at least two hydraulic shock absorbers, the hydraulic shock absorbers of the suspension mechanisms enable oil cavities of the hydraulic shock absorbers of the suspension mechanisms to be communicated with each other through at least one damping valve block, and enable pressure cavities of the hydraulicshock absorbers of the suspension mechanisms to be communicated with each other, a top end of each hydraulic damper is connected with the frame, a bottom end is connected with an axle, the connectingmechanism comprises a plurality of connecting pipes which are arranged in parallel, each connecting pipe is connected between the damping valve blocks corresponding to the two suspension mechanisms,so hydraulic oil in the oil cavities of the hydraulic shock absorbers between the two suspension mechanisms is communicated, and pressure in the pressure cavities of the hydraulic shock absorbers between the two suspension mechanisms is communicated.

The invention discloses a reinforced semitrailer back-tipping carriage which comprises an auxiliary frame fixedly connected with a carriage body bottom plate and a main frame. The tail end of the main frame is hinged to the tail end of the auxiliary frame through a pin. The whole auxiliary frame is of a gooseneck shape and comprises an auxiliary frame front part, an auxiliary frame rear part and an auxiliary frame transition part, wherein the horizontal plane of the auxiliary frame rear part is lower than the auxiliary frame front part, and the auxiliary frame front part and the auxiliary frame rear part are connected through the auxiliary frame transition part. The whole main frame is of a gooseneck shape and comprises a main frame front part, a main frame rear part and a main frame transition part, wherein the horizontal plane of the main frame rear part is lower than the main frame front part, and the main frame front part and the main frame rear part are connected through the main frame transition part. The reinforced semitrailer back-tipping carriage is characterized in that two main longitudinal beams of the main frame rear part are fixedly connected with a lower cover plate through the upper cover plate close to the pin. Compared with the prior art, the reinforced semitrailer back-tipping carriage can bear large vertical load, large horizontal load and distortion force. Under circumstances such as carriage body rollover, distortion of the main frame can be prevented, normal driving can be achieved by centralizing the carriage body, maintaining cost is lowered, and the service life is prolonged.

The invention relates to a chassis for a self-discharging rear-tipping semi-tipper, belonging to the technical field of chassis for self-discharging tippers. The chassis for the self-discharging rear-tipping semi-tipper is characterized in that the chassis changes the traditional design convention and replaces the current flat-straight solebar structure with a gooseneck structure; an arced foreside is arranged at the front end of the longitudinal girder of the tipper frame and a sunk rear part is arranged at the rear end of the longitudinal girder so as to lower the bearing gravity center of the goods; a stabilizing device composed of four support contact continuous beams, which is matched with the underside of the carriage, is evenly arranged on the longitudinal girder of the tipper frame, thus ensuring that the carriage body and the chassis are integrally and stably combined. The invention can lower the chassis of the tipper frame to the lowest while ensuring enough bearing capacity, thus making the whole tipper low in centroid, unique in design, reasonable in structure, stable in operation, safe and reliable.

The invention provides a foldable separated satellite platform. The foldable separated satellite platform comprises a first satellite sub-platform, a second satellite sub-platform and a third satellite sub-platform. The first satellite sub-platform, the second satellite sub-platform and the third satellite sub-platform are connected through extensible assemblies. During launching, the three satellite sub-platforms are closed to form the whole satellite platform, and the extensible assemblies are contracted. After a satellite enters an orbit, the first satellite sub-platform, the second satellite sub-platform and the third satellite sub-platform are unfolded and connected through the extensible assemblies, and the extensible assemblies are stretched. The foldable separated satellite platform is suitable for a large-caliber long-focus optical satellite, the problems that after the whole satellite enters the orbit, the satellite inertia is too large, and the mass center of the whole satellite deviates out of the satellite body are solved, and satellite control system design is benefited.

The invention discloses a high-rigidity and high-damping satellite platform configuration, which belongs to the field of overall design of spacecrafts and comprises a satellite-rocket butt joint ring used for being in butt joint with a rocket adapter; a mounting plate, wherein one side of the mounting plate is fixedly connected with the satellite-rocket butt joint ring, the other side of the mounting plate is fixedly connected with an optical load plate, and the optical load plate bears an optical load; damping layers which are laid on the outer surface of the optical loading plate and the outer wall of the satellite-rocket butt joint ring; a restraint layer which is laid on the outer surface of the damping layer; the mounting plate comprises a butt joint plate, a partition plate, an outer plate and an optical load plate; the partition plate is of a #-shaped structure, the outer plate is arranged on the periphery of the partition plate, the butt joint plate, the partition plate, the outer plate and the optical load plate are all aluminum honeycomb sandwich plates, and embedded parts are embedded in the single-machine equipment installation position and the rigidity reinforcing position of the aluminum honeycomb sandwich plates. The high-rigidity and high-damping satellite platform configuration has advantages of convenient single equipment configuration and installation, and high space utilization ratio. On the premise that the system is high in rigidity and small in additional mass, structural damping is effectively increased so as to attenuate vibration response of all components of the system.

The invention relates to a compact inertia device for strength training, formed by a pull body (1) and an actuation cord (2). The pull body (1) in turn comprises a main rotary shaft (4), a reel (8) mounted on the main shaft (4), an inertia element (6) solidly connected to one end of the main shaft (4) for storing kinetic energy resulting from the rotation of the main shaft (4), and a planetary gear (5) in turn comprising a central gear mounted on the main shaft (4), for increasing the speed of transmission from the main shaft (4), actuated by the reel (8), to the inertia element (6). In the preferred embodiment, the reel (8) is a conical reel including a segment of smaller diameter, to which one end of the cord (2) is solidly connected.

The invention provides a satellite platform configuration with an extensible truss node cabin, which comprises a configuration body and a solar cell array. The solar cell array is arranged on the south and north side surfaces of the configuration body. The configuration body comprises a service cabin and a node cabin, and the node cabin is installed on the upper portion of the service cabin. According to the node cabin, the four extensible truss systems are fixed through the cuboid frame structure, the node cabin can be connected with other sub-platforms in four horizontal directions at the same time, a plurality of satellite sub-platforms are connected into a whole, and an ultra-large platform is constructed for complex tasks. The fixing frame is connected with a force bearing cylinder ofthe service cabin through a node cabin bottom plate in the longitudinal direction, and a cross-shaped and central circular combined reinforcing frame is pre-buried in the node cabin bottom plate, sothat the whole satellite platform has high rigidity.

The invention provides a trapezoidal satellite structure suitable for a radar antenna and a manufacturing method. The trapezoidal satellite structure comprises a cabin, a first side plate 15 and a second side plate 16; the cabin comprises an upper cabin 1, a middle cabin 2 and a lower cabin 3, which are sequentially connected and form a trapezoidal structure; the first slide plate 15 is clung to the sides of the upper cabin 1, the middle cabin 2 and the lower cabin 3; the second side plate 16 is clung to the sides of the upper cabin 1, the middle cabin 2 and the lower cabin 3; and a plane where the central plane of the first side plate 15 is positioned intersects with that where the central plane of the second side plate 16. The trapezoidal satellite structure and the manufacturing methodcan ensure the reliable mounting of a synthetic aperture radar antenna, and can reduce the centroid of a whole satellite and the response of the synthetic aperture radar antenna; and the fundamental frequency of the whole satellite meets the requirement of a carrier rocket, and the dimensional stability to heating of the whole satellite meets the detection precision index requirement of the synthetic aperture radar antenna.

The invention provides a steering device for a hub motor, an angle unit, a walking device and an electric vehicle, and belongs to the field of power and auxiliary driving of vehicles. The steering mechanism comprises a steering arm assembly and a steering driving assembly, the steering arm assembly comprises a frame connecting part located at the upper end and a lower swing arm connecting part located at the lower end, the frame connecting part is used for being connected with a frame corresponding to a hub motor, and the lower swing arm connecting part is used for being connected with a lower swing arm of a suspension corresponding to the hub motor; the steering driving assembly drives the steering arm assembly to enable the hub motor to rotate around the vertical rotation line, the steering driving assembly is located on the side, away from the hub, of the hub motor, and the lower end of the steering driving assembly is arranged to be lower than the highest position of the wheel where the hub motor is located. A transmission steering structure between the steering device and the lower swing arm of the suspension is omitted, the chassis can be flat, the loading height and mass center of the chassis are reduced, and the utilization rate of the space above the chassis is increased.

The invention discloses an inertia wave energy power supply buoy. The inertia wave energy power supply buoy comprises a buoy shell and a power generation device and is characterized in that the powergeneration device is composed of an inertia pendulum located in the buoy shell, and the inertia pendulum swings in the buoy shell; the inertia pendulum comprises an energy capturing mechanism which converts back-and-forth swing of the inertia pendulum driven by waves into back-and-forth rotation to be output; a turning mechanism which is used for converting the back-and-forth rotation output by the primary energy capturing mechanism into single-direction rotation; and a power generator which is driven to generate electricity through the single-direction rotation output by the turning mechanism. Compared with the prior art, according to the inertia wave energy power supply buoy, a wave energy conversion mechanism is integrated in the inertia pendulum, the mass ratio of the inertia body relative to the buoy is increased, and therefore the energy capture efficiency is improved.