32results about How to "Reasonable center of gravity" patented technology

The invention provides a corner reflector which comprises a triangular supporting pedestal, a corner reflector body, and a pitching adjustment mechanism. The triangular supporting pedestal comprises three supporting foundations, a first support, a second support, a third support and a rotating shaft, wherein either two of the three supporting foundations are fixed via angle iron, the first, second and third supports are respectively fixed on the corresponding supporting foundations, and extend upwards along the horizontal plane, and the two ends of the rotating shaft are respectively pivoted to the upper ends of the first and second supports. The corner reflector body is of a triangular cone structure, the bottom surface of the corner reflector body is fixed on a rotating shaft of the pedestal via a welding clamping block, the two side surfaces of the corner reflector body are arranged symmetrically, and multiple pitching adjustment support lugs in different heights are arranged at a connecting position, at the back of the corner reflector body, of the two side surfaces. One end of the pitching adjustment mechanism is hinged to the third support of the triangular supporting pedestal, and the other end of the pitching adjustment mechanism is hinged to one of the multiple pitching adjustment support lugs at the back of the corner reflector body. In the corner reflector, the pitching adjustment support lugs in different heights are used to realize flexible pitching adjustment of the corner reflector body.

This invention disclsoes a vehicle multi-function concrete construction equipment, it is installed on car chassis. Pumping mechanism of pumping type spray machine, spray gun, and accelerating agent device and air compression set is set on the chassis. Its feature is that agitator is also fixed on chassis, and its material lifting mechanism, agitating mechanism, hydraulic power unit and electric control equipment. Generator connected to car engine is set, the hydraulic power unit and air compression set are connected to generator circuit. Folding guide rail is used on the material lifting mechanism. Agitate barrel is span fixed over pumping mechanism, and the barrel axial line is vertical to pumping mechanism push oil cylinder, the hopper of pumping spray machine is directly installed under the barrel discharge port. This invention can meet the needs of project salvage construction, especially for military engineering salvage. All kind of functions said above are on one car, dynamic need is met from chassis.

The disclosed drive unit is composed of two parts: electric drive and speed change. Rotor shaft of electromotor is a hollow shaft, which is concentric to central axis of pedal plate. When power off, the pedal plate drives electric motor bicycle running. Magnetic resistance force does not interfere bicycle running. When power on, rotor is rotated at high speed under action of magnetic field. Being sheathed on the shaft of pedal plate, the hollow rotor shaft drives rotation of sun gear of speed change gear. Through three pieces of planet wheel, one-way internal gear, and wedge shaped clutch, the sun gear drives rotation of outer shell of speed change gear. Chain wheel installed on the outer shell through chain drives rear wheel forward. Features are: compact structure, reasonable center of gravity, and convenient installation and maintenance.

The invention provides a shock-absorbing and noise-reducing hand-held vacuum cleaner. The cleaner comprises a dust cup, a suction pipe, a power supply configuration, a flow generator and a handle, thesuction pipe is disposed at the front portion of the dust cup, the handle is provided with a handle upper portion, the flow generator is disposed at the handle upper portion, the power supply configuration is disposed at the upper portion of the dust cup and the front end portion of the flow generator, a flexible empty space belt is disposed on the outer circumference of the flow generator, the flow generator is placed in empty space, the vibration transmitted by the flow generator to a hand-held assembly is absorbed by the empty space belt, and the noise generated by the vibration is alleviated.

A fan blade wheel comprises blades (1) and a hub (2), wherein the blades (1) are distributed on the hub (2), each of the blades (1) is provided with a wide outer chord (13) and a narrow inner chord (14), the blade (1) positioned at the position of the outer chord (13) is provided with a fairshaped flap (15) which begins to extend to the rear end of the outer chord (13) from the position where the blade tip extends into 3%-30% of the length of the outer chord (13), and the rear edge (12) of each of the blades (1) is in a sawtooth shape. The fan blade wheel is characterized in that the inner chord (14) comprises a first inner chord (141) and a second inner chord (142), wherein a concave portion (16) is arranged on the surface of the blade (1) close to the second inner chord (142), the back surface at the bottom of the concave portion protrudes outwards from the other surface of the blade, and a connection mechanism connected with the hub (2) is arranged on the concave portion (16). The fan blade wheel has the advantages of being reasonable in structural design, high in operation stability, long in service life and good in application effect. By means of the fan blade wheel, the strength of the blades is high, energy is saved, and noise is low.

The invention provides a handheld chargeable dust collector. The handheld chargeable dust collector comprises a dust cup, an inlet air filter system, a handle, a power supply module and an airflow generator, wherein the inlet air filter system is connected with an air outlet of the dust cup, an air inlet of the airflow generator is connected with the inlet air filter system, and the power supply module is electrically connected with the airflow generator; the airflow generator and the power supply module are transversely arranged on the rear side of the dust cup side by side, one end of the handle is connected between the airflow generator and the power supply module, the other end of the handle is across connected to the front side of the dust cup or connected to the upper side of the dust cup, and the dust cup is transversely arranged. By redesigning the structure of the handheld chargeable dust collector, the center of gravity of the handheld chargeable dust collector is made reasonable, so an operator can use the handheld chargeable dust collector conveniently, and the hand feeling is improved.

The invention provides a self-elevating multifunctional platform used for well shut-in, well workover and well detaching of offshore production platforms. The self-elevating multifunctional platform comprises a main hull, multiple pile legs, a living area module, a cantilever beam and a heavy crane; a storage area is arranged on a main deck of the main hull; the multiple pile legs penetrates intothe main hull; each pile leg can move up and down relative to the main hull; the living area module is placed on a bow of the main deck; the cantilever beam is placed on a larboard stern of the main hull; the cantilever beam is connected to the main deck of the main hull in a slideable manner; well shut-in and workover equipment is arranged on the cantilever beam; the heavy crane is arranged on astarboard stern of the main hull; and the hoisting range of the heavy crane covers the storage area to hoist a module of the detached offshore production platform in the storage area. The self-elevating multifunctional platform has the advantages that the well shut-in, well workover and platform detaching functions are integrated, the offshore engineering operation period is effectively shortened,the working efficiency is high, and the comprehensive rent is low.

The invention relates to a distributed three-shaft driving hybrid power system. The system comprises an engine power assembly, a first motor power assembly, a second motor power assembly, a battery and a whole vehicle controller; the output end of the engine is sequentially connected with a second variator, a second main reducer and a second differential; the output end of a first motor is connected with a first differential through a first variator and a first main reducer; the output end of a second motor is connected with a third differential through a third variator and a third main reducer; the engine drives a center shaft, a front shaft is driven by the first motor and a rear shaft is driven by the second motor; a pure electric front-and-rear shaft driving mode, an engine center shaft driving mode, a full-time six-wheel driving mode, a braking energy recovery mode and a parking charging mode are achieved by the whole vehicle. The power system is mainly applied to large three-shaft mining self-unloading vehicles, the performance is safe and reliable, the motors or the engine separately or cooperatively operate in perspective efficient intervals, the efficiency of the power system is improved, and the energy utilization rate is improved.

The invention provides an electric vehicle which comprises a vehicle body, wheels installed on the vehicle body as well as an electric system installed in the vehicle body, wherein the vehicle body comprises a chassis and a vehicle framework fixed together with the chassis; the chassis comprises a towing arm type rear suspension positioned behind the vehicle body; the wheels include two rear wheels installed behind the vehicle body and two rear wheel hubs installed in the two rear wheels; the two rear wheel hubs are installed at two ends of the towing arm type rear suspension; and the electric system comprises double-wheel hub motors arranged in the two rear wheel hubs. By virtue of the arrangement, the chassis of the electric vehicle is relatively low, and thus the riding space in the electric vehicle is enlarged.

The invention discloses a reinforced type core plate structure for skiing, water-skiing and surfing and a manufacturing method thereof. The reinforced type core plate structure comprises at least one layer of core plate, and each core plate is internally provided with at least one layer of plastic hollow plate. The core plate adopts at least one layer of plastic hollow plate to be taken as a reinforced structure of a core part, thus the comprehensive mechanical property of a sport sliding plate made of the plastic hollow plates is enhanced, and the width of a plate body is reduced so as to enable the sport sliding plate to be convenient to store and carry; especially when the plastic hollow plates which are made from polypropylene materials are used for producing a core plate of an aquaboard and a surfboard and is arranged at a position two thirds width away from the upper surface to the lower surface of the core plate, the weight of the plate body is moderate, the height of the gravity center is reasonable, the buoyancy is good, and the sport sliding plate is convenient for riders to drive and control.

The invention relates to a green fodder harvester, which comprises a frame, an engine, a traveling device, a driving device, a header, a feeding device, a chopping device and a throwing device. Wherein the engine is arranged on the frame, the traveling device is arranged on the frame, and is connected with the engine through the transmission mechanism, the driving device is connected with the traveling device and controls the running of the frame through the hydraulic system and the electrical system arranged on the driving device , the header is arranged at the front end of the frame, the throwing device includes a throwing cylinder arranged on the frame, the inlet of the throwing device is connected with the outlet of the chopping device. The structure of the feeding device described in the present invention is more compact, suitable for being installed in the car body of the harvester, which can reduce the volume of the harvester and make the overall center of gravity more reasonable; the addition of a return device can effectively reduce the failure rate of the equipment and improve the efficiency of the harvester. Ease of use. The shape of the teeth on the cutting roller is improved to make the cutting more fully and improve the applicability of the harvester.

The invention discloses a bottom plate jacking system for jacking a closure section of a continuous rigid frame bridge and a construction method of the bottom plate jacking system. The bottom plate jacking system comprises two sets of bottom plate embedded bases arranged at the ends of two cantilever beam sections of the continuous rigid frame bridge correspondingly, rigid supporting structures supported between the two sets of bottom plate embedded bases and a jacking mechanism used for jacking the rigid supporting structures. Each set of bottom plate embedded bases comprises a left bottom plate embedded base and a right bottom plate embedded base distributed on the same cantilever beam section. The rigid supporting structures are supporting structures for longitudinal jacking or supporting structures for oblique jacking. One ends of the rigid supporting structures are the fixing ends, and the other ends of the rigid supporting structures are jacking ends. The construction method comprises the steps of (1) construction of the bottom plate embedded bases, (2) mounting of the jacking mechanism and (3) mounting of the rigid supporting structures. The bottom plate jacking system is reasonable in design, easy and convenient to construct and good in use effect, the jacking process of the cantilever beam sections on the two sides of the closure section can be completed easily, conveniently and rapidly, and the correction requirements of lateral deviation and reverse deviation of the cantilever beam sections can be met.

The invention relates to a brushless motor bracket structure with a power control box, which comprises a motor, a power control box, damping rings, a base bracket, hoop assemblies, and a power control box bracket, wherein two ends of the base bracket extend upwardly to form supporting plates; two ends of the shell of the motor are provided with the damping rings; the damping rings are clamped on the supporting plates at two ends of the base bracket via the hoop assemblies; the power control box bracket comprises a bearing plate; two ends of the bearing plate are provided with connection parts; each connection part is provided with a fixing hole; the connection parts at two ends of the bearing plate are fixedly connected with the hoop assemblies at two ends of the shell of the motor; and the power control box is fixedly connected onto the bearing plate. The motor and the power control box can be ensured to have compact structures, and rotating and moving of the damping rings during the transportation or use process can be effectively avoided.

This invention disclsoes a vehicle multi-function concrete construction equipment, it is installed on car chassis. Pumping mechanism of pumping type spray machine, spray gun, and accelerating agent device and air compression set is set on the chassis. Its feature is that agitator is also fixed on chassis, and its material lifting mechanism, agitating mechanism, hydraulic power unit and electric control equipment. Generator connected to car engine is set, the hydraulic power unit and air compression set are connected to generator circuit. Folding guide rail is used on the material lifting mechanism. Agitate barrel is span fixed over pumping mechanism, and the barrel axial line is vertical to pumping mechanism push oil cylinder, the hopper of pumping spray machine is directly installed under the barrel discharge port. This invention can meet the needs of project salvage construction, especially for military engineering salvage. All kind of functions said above are on one car, dynamic need is met from chassis.

The invention discloses a horizontal plugboard type aerospace integrated electronic single machine structure which includes a shell, functional modules, a motherboard and an auxiliary reinforcement part. The functional modules and the motherboard are installed inside the shell. The functional modules are horizontally installed and can be horizontally inserted and pulled. The motherboard is vertically installed and is perpendicular to the functional modules. Through mating bus plugs on functional printed boards in the functional modules and a bus socket on the motherboard, the functions of power supply and communication are achieved. The shell is formed by a guide plate, a side plate, a panel and a base plate, the shell and the auxiliary reinforcement parts are fastened by corresponding screws to form an entire machine. The horizontal plugboard type aerospace integrated electronic single machine structure has the advantages of a compact structure, a harmonious proportion, a reasonable position of the center of gravity, high strength, good heat dissipation and easy disassembly, the functional modules can be freely plugged, the debugging is facilitated, the structure is applicable toa single machine with each functional module connected to the motherboard via a connector bus, a small number of functional modules and a minimum height dimension. The structure can be applied to alltypes of aerospace integrated electronic single machine products that meet the above conditions.

The invention provides a scrubber, and particularly relates to the field of cleaning tools. The scrubber comprises a floor brush assembly, a rack, a clear water tank, a sewage tank, a suction assembly, a battery assembly and a control system. The rack is connected with the floor brush assembly, and the clean water tank is arranged on the rack and is in fluid communication with the floor brush assembly; the sewage tank is arranged on the rack and is connected with the floor brush assembly; the suction assembly is arranged on the rack and connected with the sewage tank, so that negative pressure is formed in the sewage tank to recycle cleaned sewage into the sewage tank; the battery assembly is arranged on the rack and at least comprises a first battery pack and a second battery pack; the control system controls the clean water tank to supply water to the floor brush assembly and controls the suction assembly to recover sewage cleaned by the floor brush assembly to the sewage tank. According to the scrubber, the endurance time of the battery assembly can be prolonged, the charging frequency is reduced, and the cleaning efficiency is improved.

The invention relates to a brushless motor mounting structure with a power supply control box. The brushless motor mounting structure comprises a motor, the power supply control box, damping rings, a base support and a clamping assembly. Two ends of the base support extend upwards to form support plates. Two ends of a housing of the motor are respectively provided with the damping ring. The damping rings are clamped to the support plates on two ends of the base support through the clamping assembly. The brushless motor mounting structure simultaneously comprises a power supply control box support. The power supply control box support comprises a bearing plate. Two ends of the bearing plate are provided with connecting plates. The connecting plates on two ends of the bearing plate are fixedly connected with support plates on two ends of the base support. The power supply control box is fixedly connected to the bearing plate. According to the invention, the compact structures of the motor and the power supply control box are ensured, and the damping rings are effectively prevented from rotating and moving in a transportation or usage process.

A miniature gasoline engine is installed at the rear section of the model car. A first transmission gear is connected to and driven by the axle of the miniature gasoline engine, which in turn engages a parallel, second transmission gear, which is mounted at an end of a first transmission axle. A first bevel gear is provided at the other end of the first transmission axle, which engages a perpendicular, second bevel gear. The second bevel gear is connected to a center differential located in the center of the model car which in turn drives a second transmission axle (i.e., the main transmission axle). The second transmission axle runs through the center differential and axially through the model car, and directly drives the two front wheels and the two rear wheels, respectively.

Provided is a mask system (2) for an aircrew of an aircraft. The mask system has: a headphone part (6) having two earmuffs (8) and an elastic headband (10) carrying the earmuffs (8); an oxygen mask portion (12) having an oxygen mask (14) pivotably arranged on the headband (10); and an eyeglass part (16) having a goggle (18) pivotably arranged on the headband (10). The oxygen mask portion(12) is designed to allow the oxygen mask (14) to move into a use position and a rest position when the headband (10) is worn on the head (4). The oxygen mask (14) covers the mouth (28) and the nose (26) of theuser in the use position and is at least partially placed above a head band (10) worn on the head (4) in the rest position, and wherein the eyeglass part (16) is designed to allow the goggle (18) topivot into a use position and into a rest position when the headband (10) is worn on the head (4), wherein the goggles (18) cover the eyes (30) of the user in the use position and are at least partially arranged above a headband (10) worn on the head (4) in the rest position.

The invention relates to an electric and manually-operated dual-purpose wire grip. The dual-purpose wire grip comprises a wire grip main body, an electric speed reduction module, an electric speed reduction module fixing base, an anti-off device, a manual operation module, a locking device, an anti-twisting device, and a shackle; the electric speed reduction module fixing base is arranged on the wire grip main body, the anti-off device is arranged on the electric speed reduction module fixing base, and the electric speed reduction module is connected with the wire grip main body through the electric speed reduction module fixing base and the anti-off device; the locking device is arranged on an input shaft of the wire grip main body; the manual operation module is connected with the wire grip main body through the locking device; the anti-twisting device is arranged on the wire grip main body; the shackle is arranged at the upper part of the wire grip main body; and an input way of thewire grip can be switched between the electric and the manual operation. The dual-purpose wire grip disclosed by the invention has the features and advantages as follows: 1, the adaptability is strong, and the electric and manual operation can be selected according to different conditions; 2, the portability is good; 3, the security is high, and the dual-brake system is safer; 4, the structure isreasonable, and the added electric speed reduction module enables the center of gravity of the wire grip to be more reasonable; and 5, the portability is good.

The invention relates to a silage harvester, which comprises a cutting table, a feeding device, a crushing device and a discharge device, wherein the cutting table is arranged at the front end of a frame and comprises a plurality of cutting plates rotatably arranged on the frame; the feeding device comprises a plurality of cutting rollers and a plurality of conveying rollers which are rotatably arranged on the frame, the conveying rollers are transversely arranged and are arranged into a row from front to back, so the upper surfaces of the conveying rollers constitute a conveying surface, one end of the conveying surface is positioned at an outlet of the cutting table, the other end of the conveying surface is positioned at an inlet of the crushing device, the cutting rollers are positioned above the conveying surface and constitute floating support structures with the frame, and universal coupling structures are arranged between transmission mechanisms on the frame and the cutting rollers. The silage harvester provided by the invention has the beneficial effects that the feeding device is improved to make cutting more completed, the applicability of the harvester is improved, and simultaneously the size of the harvester is reduced to make the overall center of gravity more reasonable; and a return device is added to reduce failure rate and improve convenience in use.

The invention relates to a brushless motor bracket structure with a power control box, which comprises a motor, a power control box, damping rings, a base bracket, hoop assemblies, and a power control box bracket, wherein two ends of the base bracket extend upwardly to form supporting plates; two ends of the shell of the motor are provided with the damping rings; the damping rings are clamped on the supporting plates at two ends of the base bracket via the hoop assemblies; the power control box bracket comprises a bearing plate; two ends of the bearing plate are provided with connection parts; each connection part is provided with a fixing hole; the connection parts at two ends of the bearing plate are fixedly connected with the hoop assemblies at two ends of the shell of the motor; and the power control box is fixedly connected onto the bearing plate. The motor and the power control box can be ensured to have compact structures, and rotating and moving of the damping rings during the transportation or use process can be effectively avoided.

A hand-held dust collector includes a main housing; a dust-gas separation unit which is used for separating the gas flow and defines a first axis; an air inlet dust collector which is communicated with the dust-air separation unit; a fan assembly which is used for driving airflow to generate negative pressure and is arranged in the main shell; a battery pack which is electrically connected with the fan assembly and used for providing electric energy for operation of the fan assembly; and a handle which is connected to the main shell or integrally formed with the main shell, is provided with a holding area for a user to hold and limits a second axis; wherein the first axis is basically parallel to the second axis, the dust-gas separation unit, the fan assembly and the handle are sequentially arranged in the direction of the second axis, and the battery pack is located below the handle. The handheld dust collector is small in size, capable of adapting to cleaning at different angles, more reasonable in gravity center layout and flexible and comfortable to operate.

The invention discloses a lithium battery electric forklift frame which comprises a frame body. A front wall plate and a rear wall plate are arranged on the frame body in a crossing mode; the front wall plate, the rear wall plate and the frame body form a lithium battery bin for containing lithium batteries; a hydraulic oil tank is installed on the left side of the lithium battery bin and penetrates through the front wall plate and the rear wall plate; a vertical plate is arranged behind the rear wall plate; the vertical plate is fixedly connected with a weight for counterbalance; the verticalplate and the rear wall plate form a cavity for containing a pump motor and a controller; the pump motor is connected with the hydraulic oil tank; and the front of the front wall plate is connected with left and right drive axle supporting plates. According to the frame, a cavity does not need to be formed in the weight for counterbalance any more, a balancing weight does not need to be additionally arranged on the lithium battery, the weight of a whole forklift is reduced by 10 percent, the turning radius is reduced by 5 percent, and an oil way and a circuit are separated, so that the cost is reduced, and the duration performance, the stability and the safety are improved.

The invention relates to a square-outside circular-inside cavity oil expansion tank for a transformer of a locomotive. The square-outside circular-inside cavity oil expansion tank comprises a transformer, an oil pump, a metal hose, a radiator, a buffer oil pipe, an oil expansion tank and a fan, and is characterized in that: the oil expansion tank has a square-outside circular-inside cavity structure; fan brackets for connecting the fan, hoisting nuts for assembly and disassembly and an oil level display pipe are welded in the oil expansion tank; the oil expansion tank is communicated with the transformer through the buffer oil pipe; the fan is arranged on the fan brackets in the oil expansion tank; a mounting flange of the fan is connected with a top plate of the oil expansion tank in a sealed mode and a chimney fan of the fan is arranged in a middle circular cavity (inner cylinder) of the oil expansion tank. The oil expansion tank has compact structure and light weight and is low in manufacturing cost and convenient to maintain, the volume of the oil expansion tank is enlarged, the overall size is reduced, the oil expansion tank has uniform structural distribution and reasonable center of gravity and is convenient to assemble and disassemble, a mode of mounting the fan is improved, the sealing requirement of an air inlet of the fan is met, and manufacturing cost of related parts is reduced.