20results about How to "Optimize the power transmission path" patented technology

The utility model relates to the technical field of bridge construction, and discloses a crossing movable platform attached to a high-altitude bridge, which comprises a space structure body, the top end of the space structure body is fixedly connected with the bottom surface of the bridge, and the space structure body comprises a plurality of polygonal annular frames; each polygonal annular frame comprises a polygonal bottom frame and vertical supporting frames distributed in the circumferential direction of the bottom frame. The multiple polygonal annular frames are sequentially arranged in the length direction of the bridge. The anti-falling net is arranged on the bottom surface and the circumferential direction of the space structure body in a tensioning manner; the climbing entertainment device is located in the space structure body and attached to the space structure body; the corners of the bottom frames of every two adjacent polygonal annular frames are aligned at the top points and connected through circumferential dampers used for consuming horizontal vibration, and metal dampers used for consuming vertical vibration are arranged between the top of the space structure body and the bridge. The technical problems that an ultra-long movable platform attached to a high-altitude bridge is greatly influenced by wind shock, and the sense of safety of tourists is low are solved.

The invention provides an industrial fan, and belongs to the technical field of industrial fans. The industrial fan comprises a power device, the power device comprises an upstream power mechanism and a planetary gear speed reduction module, and the planetary gear speed reduction module comprises a rotating shell and a first planetary gear speed reduction mechanism; the rotating shell is used for being connected with fan blades, and a first containing cavity with a first opening in the top is formed in the rotating shell. The first planetary gear speed reducing mechanism is arranged in the first containing cavity and comprises a first center shaft, a first sun gear, a first planet carrier, a first planet gear and a first gear ring, and the first center shaft is connected with the output end of the upstream power mechanism; the first planet carrier penetrates through the first opening to be connected with the fixing part of the upstream power mechanism, the first gear ring is fixedly connected with the rotating shell, and the rotating shell is rotatably connected to the first planet carrier in a hung mode. The fan structure can be simplified, and a larger cooling space can be radiated.

The embodiment of the utility model provides a top cover assembly of a vehicle and the vehicle, and belongs to the technical field of vehicle parts, the top cover assembly comprises a top cover cross beam and a top cover outer plate arranged on the top cover cross beam, one end of a side wall connecting plate is used for being connected with a side wall assembly of the vehicle, the other end of the side wall connecting plate is connected with the top cover cross beam, and the top cover cross beam is connected with the top cover outer plate. And the reinforcing piece is connected with the top cover outer plate and the side wall connecting plate so as to support the top cover outer plate together with the top cover cross beam. According to the top cover assembly of the vehicle, the reinforcing piece is used for connecting the top cover outer plate and the side wall connecting plate, the reinforcing piece and the top cover cross beam jointly support the top cover outer plate, and therefore the structural strength of the top cover assembly is locally enhanced, redundant materials are reduced, and the weight of the whole vehicle is reduced on the premise that the bending resistance of the top cover assembly is guaranteed.

The application discloses a high-speed electric spindle and a use method, and belongs to the technical field of high-speed electric spindles. The high-speed electric spindle comprises a rotating assembly, a stationary assembly and a bearing arranged between the rotating assembly and the stationary assembly, and a gap is reserved between the rotating assembly and the stationary assembly. A tool knocking-off reverse buckling device, a cooling system and a lubricating system are arranged on the stationary assembly. The cooling system comprises cooling flow channels which are respectively arranged in a spindle shell and a spindle front bearing chamber. The spindle front bearing chamber is provided with a first circulating groove and a second circulating groove which are in communication with each other. The cooling flow channel of the spindle shell is in communication with the first circulating groove, the first circulating groove is in communication with the second circulating groove, and a throttling hollow top screw is arranged in the cooling flow channel of the spindle shell. An oil guiding channel is arranged in the spindle shell and is in communication with an annular lubricating groove of the spindle front bearing chamber. The high-speed electric spindle can reduce the tool knocking-off impact force borne by the bearing, has excellent heat dissipation and lubrication effects, is reliable in sealing, effectively stabilizes the spindle precision, prolongs the service life, and reduces operation and maintenance costs.

The utility model provides an automobile engine compartment reinforcing structure, an engine compartment and an automobile, and relates to the technical field of automobile parts, the automobile engine compartment reinforcing structure is used for being connected with the engine compartment, the engine compartment comprises two side front longitudinal beam assemblies, two side front wheel cover assemblies, a front wall plate assembly and an air chamber cover plate assembly, the structure comprises a reinforcing beam, at least one bending part is arranged on the reinforcing beam, and the bending part is arranged on the reinforcing beam. The at least one bending part is used for changing the direction of a beam body of the reinforcing beam, so that the two ends of the reinforcing beam are connected with the front longitudinal beam assemblies on the two sides respectively, the two sides of the reinforcing beam are connected with the front wheel cover assemblies on the two sides respectively, and the top of the reinforcing beam is connected with the air chamber front cover plate assembly. According to the front end of the automobile, the force transmission path is optimized, when the front end of the automobile is collided, the local part of the engine compartment is not prone to deformation, breakage and displacement, the energy absorption capacity of the engine compartment in the collision process is improved, the invasion amount of the engine compartment to a member compartment of the automobile is reduced, the front end mode of the automobile is improved, and the safety performance of the whole automobile in the collision process is improved.

The utility model provides a D-column structure and a non-bearing type automobile, the D-column structure comprises a D-column inner plate assembly and a D-column outer plate assembly, and further comprises a tail door hinge mounting plate assembly and a floor rear cross beam assembly; a tail door hinge upper supporting plate, a tail door hinge lower supporting plate and a D column reinforcing plate are sequentially arranged on the inner side of the tail door hinge mounting plate assembly from top to bottom, and the lower portion of the D column reinforcing plate extends to the floor rear cross beam assembly. The force transmission path of the D-column structure is improved by arranging the D-column reinforcing plate, matched lap joint between the D-column reinforcing plate and the D-column inner plate is improved by arranging the hinge upper supporting plate and the hinge lower supporting plate, the sinking rigidity of the tail door is improved, the sinking phenomenon of the tail door is relieved, and therefore the problem that the tail door cannot be normally opened due to sinking of the tail door is effectively solved. And even the problems of failure and water leakage of a tail door sealing system, loose tail door state, poor automobile appearance and the like are indirectly caused.

The present application belongs to the technical field of high-speed EMU bogie side beam, and particularly relates to an ohmic damping type composite material plate spring side beam structure, which comprises an upper plate, a lower plate, rubber blocks, ohmic damping components, metal frames and rubber stacks. The upper plate and the lower plate are arranged oppositely, and a space is left in the middle. Two metal frames are respectively sleeved on both ends of the upper plate and the lower plate; the upper plate and the lower plate are respectively bent into an arc shape, and the whole forms a hollow shape with the middle sinking and both ends lifting; the rubber is clamped between the middle sinking of the upper plate and the lower plate, and the ohmic damping components are arranged in the rubber blocks; and the rubber stacks are arranged below the two metal frames. The material of the upper plate and the lower plate is selected from carbon fiber composite material. The present application not only greatly reduces the structure weight, but also has higher fatigue resistance than the existing metal material side beam structure, and has the damping energy consumption and damping effect.

This utility model belongs to the field of floor slab reinforcement technology, and in particular to a floor slab structure, including a precast floor slab. Load-bearing walls are provided on both sides of the precast floor slab. An upper reinforcement component is provided above the precast floor slab. The upper reinforcement component includes a formwork and a post-cast concrete layer. The post-cast concrete layer is poured inside the formwork, and a bidirectional steel mesh is provided inside the post-cast concrete layer. Carbon fiber cloth is provided below the precast floor slab. Several transversely evenly distributed main beams are provided below the carbon fiber cloth, and several vertically evenly distributed secondary beams are provided below the transverse main beams. The upper layer combines the post-cast concrete layer and the bidirectional steel mesh to connect the dispersed precast slabs into a whole. The middle layer reinforces the tension zone with carbon fiber cloth, improving the bending load-bearing capacity and ductility of the precast floor slab. The lower layer, with its transverse main beams and longitudinal secondary beams, forms a supporting frame, achieving the effect of improving seismic reinforcement.

The invention relates to the technical field of aircrafts, and discloses a two-way linkage locking hypersonic folding rudder wing structure which is composed of a movable rudder, a fixed rudder, an unfolding driving mechanism, a two-way linkage locking mechanism and a rear cover assembly. When a missile is ejected out of a launching barrel, the movable rudder rotates under the action of an unfolding driving mechanism, when the movable rudder rotates to the position where the movable rudder cannot abut against the locking pin, a locking spring I in the movable rudder pushes the locking pin into a chordwise locking pin hole of the fixed rudder, the locking pins on the two sides collide with guide rods at the same time, then the guide rods on the two sides extrude a bent sheet at the same time, and the bent sheet is unfolded. The bent sheet deforms, the pull rod is released, and the locking spring II in the fixed rudder pushes the locking block into the spanwise locking groove of the movable rudder; locking between the movable rudder and the fixed rudder is achieved in the chordwise direction and the spanwise direction, and the problem that when a hypersonic missile folding rudder wing structure is locked only in the chordwise direction, strength and rigidity are insufficient is solved.

The vehicle body rear structure comprises a door ring reinforcing plate, the door ring reinforcing plate comprises a top beam, a C column, a wheel cover beam and a bottom beam, the top beam extends in the front-back direction of the vehicle, the C column extends in the up-down direction of the vehicle, the upper end of the C column is connected with the rear end of the top beam, and the bottom beam extends in the front-back direction of the vehicle. In the direction from front to back, the wheel cover beam inclines upwards, the upper end of the wheel cover beam is connected with the lower end of the column C, the lower end of the wheel cover beam is connected with the rear end of the bottom beam, the column D is located behind the column C and connected with the column C, and the front surface of the column D is attached to and connected with the rear surface of the column C on the same side. According to the vehicle body rear structure and the door ring reinforcing plate, a coherent force transmission path is formed, the force transmission path is optimized, therefore, impact force borne by the vehicle body rear structure can be effectively absorbed and dispersed, and through the multi-channel force transmission path, the problem that due to the fact that impact loads are excessively concentrated, local structure damage or connection failure is caused is effectively solved.

The utility model provides a pipe pile splicing positioning device which comprises a sleeve arranged on the outer side of a pipe pile head and an inter-pipe positioning mechanism, the inter-pipe positioning mechanism comprises a positioning platform, an outer supporting piece and an inner supporting piece, and the outer supporting piece is movably arranged on the positioning platform and can move in the direction close to or away from the sleeve so as to abut against the inner wall of the sleeve; the inner supporting piece is movably arranged on the positioning platform and can move in the direction close to or away from the pipe pile head so as to abut against the outer wall of the pipe pile head. By arranging the positioning platform, the inner supporting piece and the outer supporting piece, a force transmission system of the casing pipe, the outer supporting piece, the positioning platform, the inner supporting piece and the pipe pile head is formed, the overall force transmission path is simple, clear and reasonable, enough support can be provided for the casing pipe to resist the lateral pressure of the outer side soil body borne by the casing pipe, and the construction efficiency is improved. The sleeve is prevented from deviating or inclining, and the construction quality of pile splicing is ensured.

The invention relates to the technical field of aircrafts, and discloses a three-way linkage locking folding rudder wing structure which comprises a movable rudder, a fixed rudder, an unfolding driving mechanism and a three-way linkage locking mechanism. The movable rudder and the fixed rudder are connected through an unfolding driving mechanism, after external constraint is removed, the movable rudder rotates under the action of the unfolding driving mechanism, and when the movable rudder rotates to the position where the movable rudder cannot abut against the locking pin, a locking spring in the fixed rudder pushes the locking pin into a chordwise locking pin hole of the movable rudder, and the fixed rudder is unfolded. When the elastic potential energy of the locking spring is reduced to be consistent with the elastic potential energy of the special-shaped spring, the special-shaped spring also starts to release the elastic potential energy, and the locking block is pushed into a spanwise locking groove of the movable rudder; locking between the movable rudder and the fixed rudder is achieved in three directions, and the strength of the joint is greatly improved; the problem that when the folding rudder wing of the hypersonic missile is only locked in the chordwise direction, the strength of the connecting position is insufficient is solved.

The invention relates to an automobile floor middle channel assembly structure and an automobile, the automobile floor middle channel assembly structure comprises a first floor and a second floor, and the first floor and the second floor are distributed at intervals in the width direction of an automobile body; the middle channel floor is fixed between the first floor and the second floor; the seat cross beam is fixed to the first floor and the second floor and located above the middle channel floor, and the seat cross beam comprises two corner protruding areas; the two reinforcing parts are located between the seat cross beam and the middle channel floor and are fixed to the middle channel floor at intervals in the width direction of a vehicle body, and the two ends of each reinforcing part are distributed at intervals in the width direction of the vehicle body and are both fixed to the seat cross beam; the corner protruding areas are located between the two ends of the corresponding reinforcing pieces. According to the channel assembly structure in the automobile floor, the force transmission path is optimized, the structural strength is enhanced, and the overall safety is improved.

The invention provides loading unit body group automatic combination-multi-axis linkage test equipment and an application method, relates to the technical field of indoor tests of rock and soil mechanics, and aims to solve the technical problem of low test precision of test equipment in the prior art. The invention relates to automatic combination-multi-axis linkage test equipment for loading unit body groups, which comprises a main machine frame, a test sample conveying mechanism, a test sample in-place mechanism, a movable reset mechanism, a plurality of tangential combined loading unit body groups and a plurality of vertical combined loading unit body groups, the tangential moving frame is slidably connected with the host frame in the left-right direction, the right end of the tangential moving frame is connected with the loading head, the horizontal guide rail pair is connected with the host frame in the left-right direction, and the vertical loading unit bodies are slidably connected to the lower end of the horizontal guide rail pair. The follow-up actuator is connected with the host frame and is fixedly connected with the leftmost vertical loading unit body through a follow-up force transducer, and the adjacent vertical loading unit bodies are detachably connected through a lock catch mechanism.

The utility model relates to the technical field of steel frame damping, in particular to an assembly type steel frame damping joint which comprises a plurality of upper connecting plates installed at the bottom end of an upper column, and the upper connecting plates are evenly distributed around the axis of the upper column. The lower connecting plates are mounted at the top end of the lower column and are uniformly distributed around the axis of the lower column; the upper connecting plates and the lower connecting plates are vertically inserted in a staggered mode and coaxially and rotatably attached to each other, and the outer sides of the attached connecting plates are sleeved with a positioning ring with the annular hole pattern being a spline hole. The spline holes provide accurate positioning and restraining for the connecting plate and the damping assembly. Under the action of earthquake force, all the components can work closely and cooperatively, so that the earthquake force is uniformly dispersed into the whole node structure. The joint can be effectively prevented from generating unnecessary displacement and shaking in the vibration process through close fit of the spline holes, and the stability of the structure is ensured. The shock absorption assemblies in the sub-holes buffer and absorb earthquake force from multiple horizontal directions, so that the shock absorption assemblies can respond rapidly, earthquake energy is converted into energy in other forms to be dissipated through self deformation and energy dissipation mechanisms, and horizontal annular shock absorption is achieved.

The present invention discloses a large cylindrical foundation of an offshore wind power conductor frame suitable for deep water, and relates to an offshore wind power foundation structure. It comprises a circular cylinder and a conductor frame, the circular cylinder comprises a central cabin and a plurality of outer cabins, the top of the circular cylinder has a tube skirt top plate and a bottom opening; the conductor frame is wide at the bottom and narrow at the top, the conductor frame comprises a plurality of main leg columns and diagonal braces, and the bottom of the main leg columns is connected to the top of the central cabin through a connecting transition section. The present invention has a simple force transmission path, no underwater grouting operation, shortens the offshore construction period of the cylindrical foundation, saves offshore piling and barge costs, and has good application prospects in my country's 30-50m sea area. The present invention also relates to an installation method of the large cylindrical foundation of an offshore wind power conductor frame suitable for deep water.

The invention discloses a windproof perforated aluminum veneer metal roof system and a construction method thereof. The main purlin of the lower layer of the roof of the windproof perforated aluminum veneer metal roof system is a square steel connected to a grid support stool, and the lower layer steel plate is integrally welded to the main steel structure; the secondary purlin support is connected to the lower layer steel main purlin of the roof by welding; the lower layer steel secondary purlin of the roof is connected to the secondary purlin support by bolts; the top support is a roof perforated aluminum veneer keel support and is rooted in the lower layer steel of the roof The upper surface of the secondary purlin; the corrugated steel plate is connected to the angle steel by rivets; the air-tight and moisture-proof membrane is laid on the corrugated steel plate; the thermal insulation rock wool board is laid on the air-tight and moisture-proof membrane; the waterproof membrane is laid on the air-tight and moisture-proof membrane; the upper main purlin of the roof is connected to the upper main purlin of the roof by welding; the upper purlin of the roof is connected to the secondary purlin support by bolts; the perforated aluminum single plate is overlapped with the top support by a bolt assembly.

The utility model discloses a fuselage structure and an aircraft with the fuselage structure, the fuselage structure comprises a fuselage, the fuselage comprises a first part and a second part, the first part is connected to the upper side of the second part, the first part defines a battery compartment, and the second part defines a passenger compartment; the vehicle arm connector is connected with the first part and the second part; and one end of the vehicle arm is connected with the vehicle arm connector, and the other end of the vehicle arm is used for installing a rotor wing assembly. According to the fuselage structure disclosed by the utility model, the first part, the second part and the arms are respectively connected through the arm joints, on one hand, the driving force of the rotor wing assembly can be directly transmitted to the battery compartment and the passenger compartment through the arms, and a force transmission path on the fuselage structure is relatively simple, so that an aircraft is easier to control; on the other hand, the connection reliability of the first part and the second part can be improved.

This application relates to the field of unmanned aerial vehicle (UAV) technology, and particularly discloses a propeller clamping device and a UAV. The propeller clamping device includes a propeller blade, a propeller clamping seat, a vibration damping mechanism, and a base assembly. The propeller clamping seat has a first clamping portion and a second clamping portion, symmetrically arranged on both sides of the propeller clamping seat along a first direction. The first clamping portion clamps one propeller blade, and the second clamping portion clamps another propeller blade. The vibration damping mechanism includes a first shim and a second shim. Along a second direction, two first shims are respectively disposed on both sides of the propeller blade and located between the propeller blade and the first clamping portion, and two second shims are respectively disposed on both sides of another propeller blade and located between the propeller blade and the second clamping portion. The propeller clamping seat is mounted on the base assembly. Through the above structure, the first shims and the second shims can improve the force transmission path between the propeller blade and the first and second clamping portions, absorb the vibration and impact force in the rotational axis when the propeller blade rotates, reduce friction and wear between the propeller blade and the propeller clamping seat, and extend service life.