37results about How to "Enough lift" patented technology

The invention discloses a two-piece all-hydraulic tunnel drilling machine comprising three parts, i.e. a power precession device, a hydraulic power unit and a console, wherein the power precession device and the hydraulic power unit are independently arranged in a two-piece mode, and the console is independently arranged or is arranged on the power precession device or the hydraulic power unit; the three parts are connected through pipelines; under the control of the control valve of the console, the hydraulic oil of the hydraulic power unit acts on the hydraulic motor of the power precession device through the pipeline to ensure that the power head of the power precession device not only can rotate but also can feed and move front and back. The three parts of the drilling machine of the invention are independently arranged and respectively installed; when construction is carried out in a tunnel, the power precession device only needs to be installed on a handling frame, and the hydraulic power unit, the console and the like are installed on the ground surface of the tunnel, thus the tunnel drilling machine is convenient to use; and when the drilling machine works, smaller tunnel space is occupied to ensure normal operation of construction. The invention obviously lowers the manufacturing cost, the use cost and the maintenance cost of the drilling machine and has higher economical efficiency.

The invention discloses a propeller capable of starting a reconnaissance unmanned aerial vehicle underwater. The propeller comprises a propelling cabin and a front cover located at one end of the propelling cabin, and two sets of symmetrically-distributed propelling modules are arranged in the propelling cabin. A steering connecting port is formed in the side face of the propelling cabin and fixedly sleeved with a steering bearing and a steering shaft is arranged in the steering connecting port. An integrated driven gear is arranged at the outer end of the steering shaft. A support is arranged on the side face of the propelling cabin and provided with a steering shaft hole and a steering motor fixing board. A steering motor is arranged on the steering motor fixing board of the support and provided with a driving gear engaged with the driven gear. By the adoption of the propeller, the unmanned aerial vehicle provided with the propeller can comprehensively use the beneficial effect of the low power consumption of underwater navigation, and the cruising capacity of the unmanned aerial vehicle can be improved through the switching between underwater navigation and aerial navigation.

The invention relates to an oblique cord pile pulling method and system and belongs to the technical field of removing of piles of projects such as water conservancy, highway, railroad, municipal and bridges. The oblique cord pile pulling method comprises the following steps that (1) the top of a to-be-pulled pile is exposed through pretreatment at first; (2) a certain number of first anchor holes and second anchor holes are drilled in the top of the to-be-pulled pile; (3) one ends of a plurality of anchor cable materials are lowered to the bottoms of the first anchor holes and into the second anchor holes, and the other ends of the multiple anchor cable materials are exposed out of the top of the to-be-pulled pile; (4) grout is poured into the first anchor holes and the second anchor holes; and (5) the to-be-pulled pile is pulled up through lifting equipment, during pile pulling, the other ends, fixed in the second anchor holes, of the anchor cable materials are lifted symmetrically and asymmetrically through the lifting equipment at the same time so that the to-be-pulled pile can be pulled up or move transversely. Through the oblique cord pile pulling method and system, the pile pulling lifting force requirement can be better met, and horizontal components can be obtained during asymmetrical lifting through oblique cords, so that the pile moves horizontally, and pile pulling resistance is reduced.

The invention relates to a detachable multi-rotor drone for plant protection. The detachable multi-rotor drone comprises a drone body, a plurality of arms and rotors arranged on the arms, wherein the arms are detachably mounted on the drone body. The detachable multi-rotor drone has the advantages that the drone can be mounted and demounted fast, fast operation is facilitated greatly, and the requirements of transportation transition are satisfied.

The invention provides a three-dimensional material warehouse lifting device which comprises a supporting frame, a plate carrying base, a plate carrying device, lifting device bodies and a lifting drive device. The lifting drive device is arranged on the top of the supporting frame. The lifting device bodies are arranged on the two sides of the supporting frame correspondingly and driven by the lifting drive device. The plate carrying device is arranged on the lifting device bodies and can move up and down under the effect of the lifting device bodies. The plate carrying base is arranged belowthe plate carrying device. By the adoption of the plate lifting device, plates can be lifted, and then placed into a three-dimensional material warehouse matched with the plates, meanwhile, the plates taken out from the three-dimensional material warehouse can be conveyed to the bottom layer, and the plates are exchanged among stations.

The invention discloses a rammed bulb pile sinking pipe construction device, and belongs to the technical field of building foundation construction facilities. The rammed bulb pile sinking pipe construction device comprises a heavy hammer arranged above a sinking pipe, an elevating power assisting device fixed to the upper portion of the sinking pipe, and a base plate arranged on the ground. A stand column closely adjacent to a pile hole is arranged at the front end of the base plate. A pulley block is arranged on the top of the stand column. A double-drum winch is arranged at the rear portionof the base plate. A first steel wire rope and a second steel wire rope are wound around two winding drums of the double-drum winch correspondingly and are wound around the pulley block on the top ofthe stand column to be connected with the heavy hammer and the elevating power assisting device correspondingly. The elevating power assisting device and the double-drum winch are utilized for elevating the sinking pipe at the same time, enough elevating force is provided for elevating of the sinking pipe, the pile frame load is relieved, the pile frame cost is reduced in a multiplied manner, sinking pipe elevating is fast and efficient, and the construction cost is greatly reduced; and meanwhile, a locking device is utilized for conducting accurate guiding and positioning on the sinking pipe, a simple guiding barrel is replaced, and stability during sinking pipe impact is greatly improved.

The invention provides an aircraft and relates to the technical field of flight. The aircraft is characterized by comprising wing pieces for providing flight power through up-and-down oscillation or vibration, wherein unidirectional air-permeable structures allowing airflow only to flow from the tops of the wing pieces to the bottoms of the wing pieces are distributed on the wing pieces. Therefore, in the repeated oscillation or vibration process of the wing pieces, the airflow can only flow from one side surface of each wing piece to the other side surface of the same wing piece so as to obtain the lift for the flight of the aircraft.

The invention relates to a delta wing manpower aircraft with flapping wings. The delta wing manpower aircraft comprises a delta wing (1), a hanging frame (3), a pair of flapping wings (2) and a pair of pull rod frames (4). The hanging frame (3) further comprises a pair of front suspenders (20), a rear suspender (21), a butt joint frame (5) and a hung frame (6). Each single-face flapping wing (2) in the pair of flapping wings (2) further comprises a flapping wing frame (9), a net (10), fan blades (11), guide blades (12), traction wires (13) and short struts (14). Each single pull rod frame (4) in the pair of pull rod frames (4) further comprises two pull rods (7), a middle transverse rod (17) and a transverse rod as both the lower edge and a handle (8). The hanging frame (3) is hung on a keel (15) of the delta wing (1). The pair of flapping wings (2) are symmetrically arranged on the left side and the right side of the butt joint frame (5) of the hanging frame (3). The pair of pull rod frames (4) are movably connected to an outside edge portion (27) of the pair of flapping wings (2). In operation, the pull rod frames are pulled with manpower to drive the flapping wings to flap up and down like bird wings, and enough flight power is supplied to the delta wing through the flapping wings conducting the flapping action.

The invention discloses a combined type ducted aerial reconnaissance robot which comprises a coaxial reverse paddle mechanism, a gasoline engine, an engine frame, a duct, a duct support mechanism, four sets of rotary wing paddle support mechanisms and a main support mechanism, wherein the coaxial reverse paddle mechanism is provided with an upper paddle and a lower paddle which are driven by the gasoline engine, so that the differential motion between the upper paddle and the lower paddle can be realized; the coaxial reverse paddle mechanism is arranged in the duct supported by the duct support mechanism; four horizontal rotary wings which are driven by a motor are evenly arranged along the circumferential direction of the robot by rotary wing support rods; the duct support mechanism and the rotary wing paddle support mechanisms are supported by the main support mechanism, and the whole robot is supported by the duct support mechanism and the rotary wing paddle support mechanisms. The combined type ducted aerial reconnaissance robot has the advantages that the characteristics of a ducted robot and the characteristics of a four-rotary-wing robot are combined together; an oil-electricity hybrid flight mode is adopted, the characteristic of large lift force of the duct is utilized, and the flexibility of the four rotary wings is combined, so that the combined type ducted aerial reconnaissance robot makes up the unstable flight characteristics of the duct.

The invention discloses a water mist dedusting device and a dedusting method in a brown coal upgrading process. The dedusting device comprises a dedusting smoke pipeline, a smoke blocking plate, a water mist sprayer, a water mist dedusting tower, a smoke guide plate and the like. Hot smoke containing brown coal dust enters into the dedusting smoke pipeline under the action of a main air induced device, under the action of the smoke blocking plate, the hot smoke is gathered in a pipeline at the position of the water mist sprayer, when the hot smoke meets the water mist which is sprayed out, a part of dust in the smoke can be cleaned and removed, the residual smoke enters into the water mist dedusting tower through an outlet on the upper portion of the smoke blocking plate, rises in a spiral mode under the action of the smoke guide plate and sequentially penetrates through water mist layers formed by sprayed water of the water mist sprayer, and most dust in the smoke is cleaned and removed. The water mist dedusting device and the dedusting method for the brown coal drying upgrading have the advantages that the design is reasonable, the device is safe and reliable, the operation is stable during large-scale applications, the problems that by means of electric dedusting and bag dedusting methods, equipment maintenance costs are high and service lives of devices are short are effectively solved, the efficient and low-pollution comprehensive utilization of the brown coal can be effectively achieved, and the environment-friendly requirements of low carbon, energy conservation and emission reduction are met.

The invention relates to a cable-cable pile pulling method and a cable-cable pile pulling system, belonging to the technical field of pile removal in water conservancy, highway, railway, municipal, bridge and other projects. The cable pile pulling method includes the following steps: 1) exposing the top of the pile to be pulled after pretreatment; 2) drilling a certain number of first and second anchor holes on the top of the pile to be pulled; One end of the anchor cable material is lowered to the bottom of the first anchor hole and the second anchor hole, and the other end is exposed to the top of the pile to be pulled out; 4) Pour grout into the first and second anchor holes; 5) Pass the lifting equipment Pulling up the piles to be pulled out, in pulling out the piles, the other end of the anchor cable material fixed in the second anchor hole is lifted symmetrically or asymmetrically by lifting equipment at the same time to pull up the piles to be pulled out or make the piles to be pulled out laterally displaced. The inclined cable pile pulling method and the inclined cable pile pulling system can better meet the requirements of the lifting force of the pile pulling. At the same time, when the inclined cable is lifted asymmetrically, the horizontal force can be obtained, so that the horizontal displacement of the pile can be achieved, and the pile pulling resistance can be reduced. .

The invention provides a two-dimensional fluid aircraft and belongs to the field of aircrafts. The two-dimensional fluid aircraft comprises wings and two-dimensional fluid converters; each two-dimensional fluid converter comprises a rectification cap, a retaining wall and a drainage assembly for introducing airflow, mounting spaces for installing the rectification caps are formed at the inner sides of the retaining walls, and rectification spaces are formed between the retaining walls and the outer walls of the rectification caps; the retaining walls accord with equal-difference variable-diameter arcs; the outer sides of the radial cross sections of the rectification caps are circular; rectification outlets communicated with the rectification spaces are formed in the sides of the retainingwalls; each drainage assembly comprises a fluid outlet, and the fluid outlet faces small-diameter ends of the rectification caps; each wing is provided with a windward side and a leeward side which are oppositely arranged, an arch face is arranged between each windward side and the corresponding leeward side, and the rectification outlets are formed at the windward sides of the arch faces and face the leeward sides. According to the two-dimensional fluid aircraft, the production cost can be lowered, the lift force of the aircraft is increased, and disturbance is reduced.

The invention is a multifunction lifting machine which the two lifting oil cylinders are set in both sides. The guide way groove is made up of the metal square tube and the T guide way. The swinging arm bed is locked in the guide way groove by the inner T groove. The lifting machine can have the enough lifting force in the low height. So it can make for the connection of the swinging arm and the clamping fixture with the platform. The location of the clamping fixture can be adjusted. It solves the problem of the crash of the platform and the pylon.

The invention relates to a rolling-wing vertical takeoff and landing multi-dwelling aircraft. The rolling-wing vertical takeoff and landing multi-dwelling aircraft comprises a plurality of rolling wing devices, and is characterized in that blades, variable pitch connecting rods and offset mechanisms are arranged in each of the rolling wing devices; and offset quantity is set for the offset mechanisms so that the blades have an angle of attack at different rotation positions, a rotation state in which (adjustable) resultant force is always in a certain direction is formed, and eventually thrust in a certain direction is provided for the aircraft. The device is different from a rotor (or a propeller or a fan). The device rotates around a horizontal axis and can be coaxial with a wheel drive shaft, so that an air lifting system and a ground wheel propelling system are located in the same platform and can share a set of power devices and transmission systems; the rolling-wing vertical takeoff and landing multi-dwelling aircraft is compact in structure and light in weight; more effective payloads and economic benefits are brought to the aircraft; and the rolling-wing vertical takeoff and landing multi-dwelling aircraft can move forward by the reaction force produced when the rotation of the rolling wing devices agitates water in a water surface.

The invention discloses a Variable-wing type aircraft with a controllable circular rector, comprising a propeller, a main engine, an aircraft body, wings, a vertical tail and a horizontal tail, wherein an impeller power machine is arranged at the connecting part of the middle part of the aircraft body and the wings; each wing is internally provided with an impeller; the rotating shafts of the impellers are fixed on an end plate of the wings through bearings; an output shaft of the impeller power machine is connected with the rotating shafts of the impellers; the parts of the wings, above or below the impellers, are open; the front edge and the rear edge of each wing are internally provided with an upper movable arc-shaped cover plate and a lower movable arc-shaped cover plate which are used for covering the upper surface and the lower surface of the corresponding impeller; and the upper arc-shaped cover plate and the lower arc-shaped cover plate are connected with control motors through guide rails, worms and reducers. According to the controllable-circular-rector variable-wing type aircraft, the impellers rotate to accelerate air flow so as to generate circular rector, so that the wings increase the extra lift, and the aircraft can generate enough lift to fly when the speed of relative movement of the aircraft and air is very low; consequently, the taking off and landing safety of the aircraft is greatly improved, and the aircraft can generate enough lifting force to realize the short-distance taking off and landing.

The invention discloses an elevating machine tool protection door, which comprises a protection door body, a driving mechanism and a connecting mechanism, wherein the protection door body is arranged on a machine tool shield; the machine tool shield is arranged out of a machine tool; the driving mechanism is fixedly connected with the protection door body by the connecting mechanism; the driving mechanism is connected with the hydraulic control device; and under the control of the hydraulic control device, the driving mechanism drives the protection door body to move. The elevating machine tool protection door has the reliable elevating action, and accurate stop can be realized on the opening and closing positions. When unforeseen circumstances happen, the door can be quickly locked, and the elevating action of oil cylinders on two sides of the door can be synchronous operated.

The invention relates to an optimization method for a time-limited carrying and air-dropping aircraft with a double-wing layout, comprising the following steps: step 1, calculating wing-related data according to power, weight and lift coefficient; step 2, determining the span and aerodynamic chord length of the upper and lower wings; step 3 , Determine the selection of the relative position of the wing and the CFD numerical calculation verification; Step 4, verify whether the results are consistent; if the results are consistent, continue to the next step, if the results are not consistent, go back to Step 3; Step 5, pressure distribution curve and lift-drag characteristics Step 6, CFD numerical calculation of the whole aircraft model; Step 7, optimization of the wing design; the present invention meets the usage requirements, solves the problem of excessive torque on the wing, and improves the longitudinal stability of the aircraft.

The invention discloses an aerial pesticide spraying device which comprises an aircraft body, a spraying mechanism and a landing mechanism, wherein the aircraft body is provided with wings, the spraying mechanism is arranged in the aircraft body, the landing mechanism is fixed at the bottom of the aircraft body, and the spraying mechanism is arranged in the wings. When a first impeller and a second impeller which are arranged in the aerial pesticide spraying device rotate reversely, generated reverse liquid flows cause cross interference to achieve a damping effect, and the mechanical energy generated by device landing is converted to internal energy so as to achieve a buffering effect; the higher the sliding speed of the device is, the greater the impact force is, and the greater the damping is; when the device slides and nearly stops, the rotation speeds of the first impeller and the second impeller are reduced, and the damping is correspondingly reduced; when the device lands at a high speed, buffering is provided; and the surfaces of spray nozzles are leveled to the bottoms of the wings, so that the flight resistance is reduced, the aerodynamic structure performance of the wings is kept, enough lift force of the wings is generated during flight, and the problem of larger flight resistance caused by exposure of the spraying mechanism is solved.