81results about How to "Reduce travel resistance" patented technology

A control device corrects the alignment of wheels of a vehicle during travel to improve fuel consumption performance. Operating conditions of a suspension device (alignment adjustment device) are controlled by alignment control while the vehicle is traveling, and when the alignment of the wheels is adjusted, travel resistance of the vehicle increases or decreases. The control device detects the travel resistance of the vehicle based on the value of an electric current supplied to a wheel drive device (electric motor), and the alignment of the wheels is adjusted so that the travel resistance of the vehicle decreases. As a result, the alignment of the wheels during travel is adjusted to a correct state to improve fuel consumption performance.

The invention relates to a floatable track type special underwater operation robot suitable for extremely soft geology. The floatable track type special underwater operation robot suitable for extremely soft geology comprises a running mechanism; the running mechanism is a track and mud sled composite structure; mud sled board structures are fixedly arranged on the track; the bottoms of the mud sled board structures are higher than the bottom of the track and have arch-shaped board heads; board water jet devices are arranged on the arch-shaped board heads; the board water jet devices jet waterforwards; in the running process of the running mechanism, the arch-shaped board heads press water downwards; the pressed water and jet water mutually form water films at the bottoms of the mud sledboard structures to reduce the running resistance; and therefore, the floatable track type special underwater operation robot suitable for extremely soft geology can stably run in the extremely soft geology. According to the floatable track type special underwater operation robot suitable for extremely soft geology, as parts such as a propelling mechanism, a buoyancy adjusting device, an operationmodule are also designed, the underwater robot can automatically run on the sea bed and has multiple functions such as water floating, fault self-repairing and fine operation.

A control device controlling a vehicle's automatic transmission. The automatic transmission engages first and second friction engagement elements by fluid pressure from a pump operating using motive power from the vehicle's motor when a shift position is at a reverse traveling position, places the first friction engagement element on standby at a predetermined pressure that is higher than a stroke starting pressure by which a piston stroke is started and lower than a complete engagement pressure or engages the first friction engagement at the complete engagement pressure when the shift position is at a non-traveling position, and engages a third friction engagement element as a starting shift speed when the shift position is at a forward traveling position. When the shift position is at the forward traveling position, the first friction engagement element is placed on standby at the predetermined pressure if a vehicle speed is lower than a predetermined vehicle speed, or releases the predetermined standby pressure if the vehicle speed is equal to or higher than the predetermined vehicle speed.

A self-moving device, including: a housing, provided with a motor; a moving module, including a track, the track, driven by the motor, moving the self-moving device; a working module; a control module, configured to control movement of the moving module and working of the working module; and a first sensor and a second sensor, configured to detect an obstacle in a moving direction of the self-moving device. The first sensor is configured to detect a first area in the moving direction, the second sensor is configured to detect a second area in the moving direction, and the first area and the second area are arranged perpendicular to the moving direction. The control module controls a moving manner of the self-moving device according to sensing results of the first sensor and the second sensor.

The invention discloses a deep ploughing, deep scarification and ridge smashing device. The device comprises a motor 1, a transmission case 2 and at least two ridge smashing drill bits. Each ridge smashing drill bit comprises a screw shaft 3, ridge smashing cutters 4, a connecting flange 5 arranged on the top of the screw shaft, a screw blade 6 and a drill tip 7. Each screw blade 6 is mounted on the corresponding screw shaft 3, and the ridge smashing cutters 4 are arranged on the outer edge of each screw blade. The deep ploughing, deep scarification and ridge smashing device is characterized in that the distance from ridge smashing cutter heads of the ridge smashing mechanism to the screw shafts is larger than half the distance between the external diameter parts of every two adjacent screw shafts and smaller than the distance between the external diameter parts of every two adjacent screw shafts. The deep ploughing, deep scarification and ridge smashing device solves the problems that a ridge smashing machine in the prior art is not thorough in cutting of large soil blocks and bad in ridge smashing effect, tillage efficiency is improved, and the application and popularization economic benefits and social benefits are very obvious.

The invention relates to a multi-functional ditcher. The technique of the invention is characterized in that the sizes of bevel gears of two bevel gear pairs of two cutter heads for cutting which are respectively installed in a transmission mechanism are the same; the two bevel gear pairs adopt a same transmission shaft to drive or two transmission shafts driven by the engagement of gears to drive. The multi-functional ditcher of the invention has simple integral structure, scientific and reasonable transmission design and reliable mechanical operation, and effectively improves the efficiency and the quality of operation by the ditcher and reduces energy consumption, and can realize unilateral ditching, thus being the new product of the multi-functional ditcher.

The invention discloses rail transit tunnel geological radar mobile intelligent detection equipment and an operation method. The working state of each rotary telescopic device is controlled by a console, the tail end of each rotary telescopic device is provided with a radar antenna detection device through a telescopic slideway device, the rotary telescopic device rotates under the control of theconsole, the working angle and the working pose of the radar antenna detection device installed on the telescopic slideway device are adjusted, and the fixed distance, which is required by detection,between the radar antenna and the tunnel lining wall is kept; each rotary telescopic device is further provided with a laser detection device, and obstacles on the surface of the tunnel lining are monitored in real time in the moving process of an engineering vehicle so as to avoid the obstacles and adjust the detection route. According to the invention, the laser detection result can be received,the detection path can be set, the working posture of the detection system can be intelligently adjusted, and intelligent detection is achieved.

The invention relates to the technical field of channel improvement, in particular to a silt removal device for channel improvement. The silt removal device for channel improvement can stir stubborn silt more thoroughly, improve the treatment degree of salvaged silt, better dehydrate the silt, reduce the influence on and damage to the environment, improve the use reliability of the device and improve the degree of automation. The silt removal device for the channel improvement comprises a hull, wherein the bottom of the hull is provided with a working cavity, and the top end of the hull is provided with a control chamber; the silt removal device further comprises a first rotating shaft, a first connecting rod, a second connecting rod and a submersible motor, the first connecting rod is provided with multiple sets of rolling wheel groups, and the multiple sets of rolling wheel groups are evenly provided with stirring teeth; the silt removal device further comprises a second rotating shaft, a third connecting rod, a fourth connecting rod, a conveyor belt group, a first connecting pipe, a second connecting pipe, a silt box and a dehydration cylinder, the dehydration cylinder is internally provided with a dehydration cavity, and a water placement cavity is formed between the inner wall of the silt box and the outer wall of the dehydration cylinder.

The invention provides an underwater-air dual-purpose unmanned aerial vehicle. The underwater-air dual-purpose unmanned aerial vehicle comprises an unmanned aerial vehicle main body; wings are correspondingly arranged on the two sides of the unmanned aerial vehicle main body; miniature vane pumps are fixedly connected with the bottom faces of the wings, and the bottom faces of the inner side ends of the wings are hinged to the unmanned aerial vehicle main body; connecting rods I are fixedly connected with one ends of the side faces of the inner side ends of the wings, and bearings are fixedly connected with the other ends of the side faces of the inner side ends of the wings; guiding-limiting shafts are installed in the bearings, and tracks matched with the guiding-limiting shafts are installed on the unmanned aerial vehicle main body in a supported mode; a support assembly is fixedly connected with the unmanned aerial vehicle main body, an electromotor is installed on the support assembly, an eccentric wheel is driven to rotate by the electromotor, and a pushing rod is driven to move back and forth by the eccentric wheel through a connecting rod II, so that power is provided for folding or unfolding of the wings; tail wing plates arranged in a V-shaped mode are fixedly connected with the tail of the unmanned aerial vehicle main body, and rotating motors are symmetrically installed at the opposite ends of V-shaped inner cavities of the tail wing plates; and tail wing hoods can be driven to rotate by the two rotating motors around the centers of motor shafts so as to provide auxiliary power for flight of the unmanned aerial vehicle. The underwater-air dual-purpose unmanned aerial vehicle can be operated in the air and underwater.

A jack-up platform comprising a deck structure, a column with a base structure and a jack-up system for moving the column and the deck structure relative to each other. The base structure comprises a base and at least three base supporting parts, while the deck structure, starting from at least three spaced coupling places, can be connected by a tensioning apparatus with at least three mutually spaced connecting places on or near the base supporting parts. Before the installation the platform, floating with pulled-up column, is brought to the desired location where the base supporting parts are brought into contact with the floor and the deck structure is raised out of contact with the water. After providing the tensioning apparatus and bringing the deck structure to working height, the tensioning apparatus is tensioned, for instance by slightly further raising the deck structure which is then secured relative to the column.

The invention provides a cold chain logistics distribution vehicle and a distribution method thereof and belongs to the field of refrigerating and freshness retaining vehicles. The vehicle comprises an electric vehicle body provided with a freezer; the freezer comprises a housing, conductors and an inner tank; the inner tank is a rectangular one with one opened side, the wall of the inner tank is provided with ventilation holes evenly, the outer wall of the inner tank is coated with the conductors, right angle trapezoid protrusions are arranged on the conductors corresponding to the side walls of the inner tank, the conductors are coated with the housing with one opened side, a heat insulation layer is embedded in the housing, refrigerant is arranged in the clearance between the conductors and the housing, and the opened side of the housing is provided with a gate. The vehicle is capable of entering the city without causing traffic jams, the refrigerating and freshness retaining cost is low, the refrigerating and freshness retaining effect is fine, air pollution is eliminated, and the energy consumption cost is low.

A method of reducing the object-traveling resistance includes the steps of forming a plurality of small cavities on the whole or at least a portion of an object skin by a non-destructive measure, and producing a plurality of small vortexes at the object skin to form a thin turbulent boundary layer when a fluid passes through the plurality of small cavities, for achieving an advantageous interference to a turbulence of the fluid at the object skin, such that a portion of fluid is not in contact with the object skin, and a viscous drag acting on the object skin is reduced to extend a wake and reduce a drag force of the wake. The aforementioned mechanism can reduce the object-traveling resistance to provide a faster traveling speed and a big moving power of the object.

A pipeline pushing machine comprises a base, push-and-pull hydraulic cylinders, a transmission mechanism and a clamping mechanism, wherein the push-and-pull hydraulic cylinders are fixed to the left side and the right side of the base; the push-and-pull hydraulic cylinders drive the clamping mechanism to act through the transmission mechanism, and a pipeline is driven to move forward by the clamping mechanism; the clamping mechanism is arranged on the periphery of the pipeline; the clamping mechanism comprises a connection frame, a pipeline clamping frame and a clamping tile; the connection frame is fixedly connected with the clamping tile and hinged to a crank of the transmission mechanism through a clamping tile hinge pin. The pipeline pushing machine is simple in structure and convenient and rapid to use, assists in pushing the whole back-dragged pipeline during pipeline crossing in a long-distance complex stratum, increases the construction length of crossing in a horizontal directional drilling method, enhances adaptive capacity to the complex stratum, and widens the application range of crossing in the horizontal directional drilling method.

The invention discloses a multifunctional celery seeding all-in-one machine, and belongs to the field of agricultural machinery. The multifunctional celery seeding all-in-one machine comprises a rack, a pressing roller, a rotary tillage ridging device, a ground wheel device, a film laminating device, a sand pressing device and a seeder, wherein the pressing roller, the rotary tillage ridging device, the ground wheel device, the film laminating device and the seeder are fixedly mounted on the rack from front to back. The machine advances under the traction of a tractor or other agricultural machinery; rotation of ground wheels of the machine is realized through a first-stage chain in a transmission manner; and rotation of a film laminating shaft in the film laminating device and transmission of an output shaft of a speed change box of a perforation device are realized through second-stage and third-stage chains in a transmission manner. According to the multifunctional celery seeding all-in-one machine, the sand pressing device and the ground wheel device are improved, and a drop irrigation device is additionally arranged, so that the sand stirring and production effect is enhanced, the advancing resistance of the all-in-one machine is reduced, and the seeding precision is improved.

The invention relates to wellhead sealing filler of a pumping unit with a slow release self-lubricating function and solves the problem that the energy consumption is increased and the service life ofpacking filler is shortened as a medium is easy to leak because an existing wellhead sealer is poor in sealing effect. The wellhead sealing filler of the pumping unit with the slow release self-lubricating function is prepared from the following components in percent by mass: 25-45% of rubber particles, 2-5% of epoxy resin, 15-20% of 56-62# semi-refined paraffin wax, 10-15% of 52-62# semi-refinedparaffin wax powder, 5-10% of chloroethylene copolymerized resin, 15-25% of a plasticizer, 3-5% of a dehumidifier, 0.5-1% of a foamer, 0.2-1.0% of a curing agent, 5-15% of talc powder, 5-15% of molybdenum disulfide lithium-based lubricating grease and 3-5% of base oil. According to the wellhead sealing filler of the pumping unit with the slow release self-lubricating function, the material of thepacking filler is modified. Solid and liquid slow release lubricant structures are provided. The lubricating ability can be slowly released according to the contact pressure condition of a polish rodand the filler, so that the stroke resistance of the polish rod is reduced, the energy consumption of the equipment is reduced, and the service life of the packing filler is prolonged.

The invention discloses a rapid bus driving roadbed which comprises, from bottom to top, a soft soil base layer formed by leveling and tamping soft soil and pre-embedded with a main drainage pipe; a gravel layer which is formed above the soft soil base layer by pouring gravel and cement, wherein a retaining wall, a bearing frame and a monitoring structure are arranged in the gravel layer; a rubble layer which is formed by pouring rubbles and cement, wherein a water tank is arranged in the rubble layer; a water permeable brick layer which is a brick body formed above the gravel layer, wherein the water permeable brick layer is provided with a water permeable structure; an asphalt concrete layer which is formed above the water permeable brick layer, wherein the asphalt concrete layer comprises lower coarse-grain asphalt concrete, upper medium-grain asphalt concrete and stiffening rods inserted between the lower coarse-grain asphalt concrete and the upper medium-grain asphalt concrete; and a pavement layer which is formed above the asphalt concrete layer. According to the rapid bus driving roadbed, rapid drainage can be achieved, the safety of rapid bus driving in rainy days is improved, meanwhile, pavement settlement is controlled, effective jacking and timely response are conducted, and the service life of the rapid bus driving roadbed is prolonged.

A flow straightener of a vehicle provided with a bumper and a cab disposed above the bumper includes a first opening section provided in the bumper and/or the cab and opened toward a front of the vehicle, and a second opening section connected to the first opening section via a connecting path and opened toward an outer side in a vehicle width direction from a location further on an inner side in the vehicle width direction than front wheels of the vehicle such that traveling wind led into the first opening section passes through a front wheel forward region defined as being behind the first opening section in a lower region of the cab and in front of the front wheels.

The present invention discloses a beak-type guide ditching device and aims to provide the beak-type guide ditching device which is fast in soil piercing, small in working resistance, and good in ditching quality. The beak-type guide ditching device comprises a plate shaped column handle, a guide straight cutter is arranged horizontally at the lower end of the column handle, and a beak-type cutter head is arranged at the front end of the guide straight cutter. Besides, the column handle is located in a same-center vertical plane with the guide straight cutter and the beak-type cutter head, and is located at the upper portion of the guide straight cutter. Soil separation ploughshares are arranged symmetrically at the right side and left side of the column handle. A ditching curve is formed by an intersection of the front ends of the two soil separation ploughshares at the left and right sides in the central vertical plane. The lower end tip of the ditching curve is connected with a ditching blade line of the beak-style cutter head. The left and right sides of the two soil separation ploughshares slightly tilt to outside from the front ends. The beak-type guide ditching device is also applicable to straw deep burying, field returning and ditching operations.

The invention discloses an automatic board continuous layer conveyor and belongs to the technical field of sheet board conveying machinery. The board continuous layer conveyor comprises a machine frame, a pair of revolving platform elevating mechanisms which are mutually corresponding, a revolving type layered board sending mechanism, a first revolving frame driving action cylinder and a second revolving frame driving action cylinder; the machine frame comprises a first wallboard, a second wallboard, a revolving platform elevating mechanism connecting shaft and a bottom beam; the revolving type layered board sending mechanism is supported between central shafts of a first revolving frame and a second revolving frame; the pair of revolving platform elevating mechanisms comprise revolving platform lifting action cylinder chains and chain wheels; the revolving type layered board sending mechanism comprises a first revolving frame, a second revolving frame, a sheet wood conveying platform panel, an input roller, an input pressing roller, an output roller and an output pressing roller; front ends of the first revolving frame and the second revolving frame are provided with sheet wood input pressing roller lifting and pressing mechanisms; a power transmission mechanism is arranged on the first revolving frame; a sheet wood deflection proof mechanism is arranged between a first bearing beam fixing base and a second bearing beam fixing base; sheet wood input and output pressing rollers are rubber rollers. The board continuous layer conveyor reduces the operation intensity, saves manpower, guarantees a friction effect between sheet wood and reduces movement resistance to the sheet wood.

The invention discloses a full-automatic lure boat which comprises a shell, a power device and a steering device. A cab is arranged at the upper portion of the shell, the shell is a double-layer shell, and the portion between the two layers of the shell is filled with a buffer layer. The power device is installed on the shell in a foldable mode. The steering device comprises a steering rod, a manual steering assembly and an automatic steering assembly, the steering rod is rotationally connected to the shell, one end of the steering rod is fixedly connected with a propeller, the other end of the steering rod is fixedly connected with the manual steering assembly, the manual steering assembly is located in the position where operation is convenient, the automatic steering assembly comprises a steering power source and a steering transmission mechanism which are in transmission connection in sequence, and the steering power source drives the steering transmission mechanism to drive the steering rod to rotate. The full-automatic lure boat has the advantages of being high in automation degree, safe and reliable.

The invention discloses a multifunctional deep scarifier preventing grass intertwining. The deep scarifier comprises a main chassis, deep scarifying shovels, and a rotary plow. The deep scarifying shovel and the rotary plow are installed on the main chassis. The main chassis comprises two parallel steel racks and a cross beam erected between the two steel racks. Front ends of the two steel racks are respectively provided with a pin hole. Two rows of deep scarifying shovels are arranged on the main chassis. A depth limitation wheel is arranged between the two rows of deep scarifying shovels. The deep scarifying shovels are provided with main cutters and secondary cutters. The rotary plow is arranged behind the deep scarifying shovels. The rotary plow is connected with a gearbox. The structure of the main chassis can be connected with any traction devices, without being limited to walking type trolleys or tractors, and the like, through utilizing the pin holes; and the multifunctional deep scarifier preventing grass intertwining is simple in structure, uneasy to be intertwined by grass, small in traveling resistance, and high in efficiency.