224 results about "Torsional rigidity" patented technology

The invention relates to the technical field of automobile part structures, in particular to a cabin beam structure, a cabin assembly and an automobile. Comprising a cross beam body which is of a plate-shaped structure arranged in the Y direction, and lap joint faces are arranged at the two ends of the cross beam body; the lap joint faces completely cover and are fixed to the upper end faces of the corresponding tower bases in a lap joint mode. The connecting plates are arranged at intervals in the Y direction, one ends of the connecting plates are arranged on the side, facing the front wall plate, of the cross beam body, and the other ends of the connecting plates are fixed to the front wall plate. According to the cabin cross beam structure, the integration degree is greatly improved, the comprehensive cost is greatly reduced through the lightweight design, in addition, the torsional rigidity of a vehicle body is improved through the adopted multi-claw structure, and the connecting strength of the cabin cross beam and a tower base is improved.

The invention discloses a prefabricated heat preservation groove type plate floor slab system of an assembly type steel structure trestle, and relates to the technical field of groove type prefabricated heat preservation floor slabs, the prefabricated heat preservation groove type plate floor slab system comprises an anti-skid face plate and a heat preservation bearing mechanism, the heat preservation bearing mechanism is arranged at the bottom of the anti-skid face plate, the heat preservation bearing mechanism comprises a plurality of sealing plates, and the sealing plates are arranged in the anti-skid face plate. The multiple sealing plates are arranged and located at the bottom of the anti-skid panel, multiple second supporting blocks are arranged at the bottoms of the sealing plates, groove-shaped plates are arranged on the outer sides of the multiple second supporting blocks, structural blocks are integrally formed through pouring and extruding, reinforcing strips are arranged on the inner walls of the structural blocks, and the structural blocks and annular hoops form a two-way constraint combined framework which can bear bending moment and shearing force; therefore, the bending resistance, the shearing resistance, the torsional rigidity and the overall bearing capacity of the plate body are improved on the premise that heat preservation is not affected on the whole, the engineering problems are avoided, and normal construction work and construction time are maintained.

The invention relates to the technical field of transmission shaft machining, in particular to a kinetic energy transmission shaft body and a machining process integrating pultrusion, weaving, winding and glue injection, the kinetic energy transmission shaft body comprises a shaft body, the shaft body is formed by winding a continuous composite material reinforced thermosetting resin prepreg tape, and a composite material comprises a reinforcing material, a base material, a functional additive and filler; a plurality of limiting grooves are formed in the inner wall of the shaft body, the limiting grooves extend in the axial direction of the shaft body, the length of the limiting grooves is consistent with that of the shaft body, and pultrusion, weaving, winding and glue injection processes are organically integrated, so that the manufactured kinetic energy transmission shaft body has high specific strength, high torsional rigidity, excellent interlayer bonding performance and good dynamic stability; meanwhile, a limiting groove can be precisely machined in the inner wall of the shaft body, the high-precision torque transmission requirement is met, and the defects that a traditional metal shaft body is heavy and prone to corrosion and layers of a single composite material shaft body are prone to layering are overcome.

This invention relates to the field of blade crown structure technology and discloses a method for designing the oblique cut angle of crowned blades. By defining the direction and magnitude of the oblique cut angle of the crowned blade and defining evaluation parameters for the rationality of the static design of the crowned blade, simulation models of crowned blades with different sizes and directions of oblique cut angles on the crown contact surface are constructed. Static analysis is performed on the simulation models, and the oblique cut angle and magnitude of the contact surface are determined based on the static evaluation parameters. This invention solves the problems of excessive static stress in the blade due to pre-twist during assembly of crowned blades and crown misalignment due to rubbing. In particular, it addresses the following issues: for short blades with crowns and small aspect ratios and large torsional stiffness, even a small pre-twist angle design can still result in excessive stress. Reducing the pre-twist angle makes it difficult to ensure that the pre-twist angle tolerance meets requirements during processing and assembly. Using traditional improvement methods requires significant modifications to the blade, limiting engineering applications and affecting other blade performance.

The invention discloses a hydraulic bushing with excellent torsion performance. The hydraulic bushing comprises an outer pipe, and a hydraulic main spring assembly used for second-stage vibration reduction and a solid bushing assembly used for first-stage vibration reduction are sequentially and concentrically arranged in the outer pipe from outside to inside; the hydraulic main spring assembly comprises a first middle pipe, and the outer side wall of the first middle pipe is connected with the inner side wall of the outer pipe through a first rubber body. The solid bushing assembly comprises a second middle pipe and an inner pipe, and the outer side wall of the second middle pipe is connected with the inner side wall of the first middle pipe; the inner pipe is arranged in the second middle pipe, and the outer side wall of the inner pipe is connected with the inner side wall of the second middle pipe through a second rubber body. The damping device is provided with the first-stage damping solid bushing assembly and the second-stage damping hydraulic main spring assembly, and the hydraulic main spring assembly on the outer side provides a hydraulic characteristic and meanwhile provides a part of rigidity characteristic. When the hydraulic main spring assembly on the outer side is twisted and the torsion reaches a certain degree, the solid lining assembly on the inner side not only provides axial and radial rigidity, but also starts to provide the torsional rigidity characteristic.

This application relates to a vehicle, a laser radar mounting bracket, and its mounting structure (10). The mounting structure (10) of the laser radar mounting bracket includes a rigid support part (11), an elastic support part (12), and a first connecting member (13). The rigid support part (11) is provided on the bracket body (20). The elastic support part (12) is fixedly connected to the rigid support part (11). The first connecting member (13) is for connection to the laser radar (30), and the first connecting member (13) is fitted into the elastic support part (12). Since the first connecting member (13) is connected to the rigid support part (11) via the elastic support part (12), it exhibits vibration damping and sound damping effects. Furthermore, since the first connecting member (13) is fitted into the elastic support part (12) and the elastic support part (12) is fixedly connected to the rigid support part (11), torsional rigidity is also exhibited, resulting in good mounting stability of the laser radar (30) on the laser radar mounting bracket.

A submersible hydraulic assembly (6) for an energy storage plant (1) comprises: • at least one hydraulic machine (12); • at least one first buoyancy chamber (46, 50, 63) filled with at least one first buoyancy element (47, 51, 64); the at least one first buoyancy chamber (46, 50, 63) being configured in such a way that the hydraulic machine (12) is substantially neutrally buoyant when submerged in an environmental liquid. The invention further relates to an energy storage plant (1), to a method for performing maintenance operations on an energy storage plant (1) and to a method for assembling / disassembling an energy storage plant (1).

To provide a drive shaft for a vehicle capable of making right and left parts common while equalizing torsional rigidity on the right and left sides.SOLUTION: Any one of the outer circumferential surface spline teeth formed at both ends of the intermediate shaft and the inner circumferential surface spline teeth formed at the first joint and the second joint has a helix angle. The torsion angle is formed such that the inclination direction is opposite between the power source side and the drive wheel side. Accordingly, in a case where the vehicle drive shaft has common specifications on the left and right sides, the substantial axial length for transmitting power is likely to be equal on the left and right sides, and thus the torsional rigidity of the vehicle drive shaft is likely to be equal on the left and right sides. Therefore, in the vehicle drive shaft, it is possible to achieve commonality of components on the left and right sides while making the torsional rigidity equal on the left and right sides.SELECTED DRAWING: Figure 1

The utility model discloses a two-wheeled electric bicycle bearing type frame which comprises a head tube, a left side protection plate and a right side protection plate, fixing holes are formed in the front side fixed connecting ends of the left side protection plate and the right side protection plate, and a cushion support is fixedly connected to the top ends of the sides, away from the head tube, of the left side protection plate and the right side protection plate. Reinforcing plate structures are fixedly installed on the rear sides of the ends, away from the head pipe, of the left side protection plate and the right side protection plate. According to the bearing type frame of the two-wheeled electric bicycle, the front cross beam structure and the rear cross beam structure are each designed to be of a double-cross-beam structure, the torsional rigidity and the bearing capacity of the frame are remarkably improved, local stress is dispersed through the design of the reinforcing plate structures and the pipe holes, the stability of the damping supports and the head pipe on the two sides is improved, and therefore the overall stability and durability of the frame are improved; the whole frame is designed to be of a U-shaped structure, the design is reasonable, installation is convenient and fast, the installation space of key components is optimized, and the turning stability and the high-speed driving performance of the vehicle are improved.

The invention relates to the technical field of cross beam bases, in particular to a horizontal measurement tool which comprises a cross beam and two bases, a reinforcing assembly is arranged on the surface of the cross beam, the two bases are symmetrically arranged below the two ends of the cross beam respectively, and the reinforcing assembly comprises a connecting sleeve arranged on the surface of the cross beam in a sleeving mode; by means of the inclined auxiliary beams distributed in the wave shape, the arch supporting effect on the middle of the cross beam can be achieved, deformation of the cross beam caused by gravity influence at the position can be reduced to the maximum extent, meanwhile, the overall weight of the base can be reduced by forming the cavity, and through the arrangement of the cylindrical supporting pieces and the *-shaped ribs, the service life of the base can be prolonged. The cylindrical structure has excellent radial rigidity and torsional rigidity, and the diverging ribs which are shaped like the Chinese character'mi 'and surround the cylindrical structure can uniformly and efficiently disperse concentrated loads (such as force transmitted by a beam body) from the upper part to the whole bottom surface of the base, so that the strength and the stability of the base can be ensured under the condition that the weight of the base is reduced.

The utility model relates to the field of numerical control machine tools, and discloses a machine tool stand column of a numerical control machine tool, which comprises a plurality of supporting plates, the supporting plates are respectively fixed on the left side and the right side of a stand column body, connecting plates are fixed among the supporting plates, and the connecting plates are fixed with the stand column body. Two sliding rails are fixed to the front side of the stand column body, reinforcing ribs are fixed to the four corners of the top face of the stand column body, and a plurality of containing grooves are formed in the rear side of the stand column body. According to the utility model, the supporting plate is matched with the connecting plate, so that the cutting force and the gravity borne by the stand column body can be uniformly dispersed to the base, the local stress concentration is avoided, the bending resistance and the torsion resistance of the stand column body can be effectively improved, the shaking phenomenon of the stand column body is prevented, and the rigidity of the stand column body is improved; by increasing or reducing the balancing weights, a worker can conveniently adjust the gravity center position of the stand column body, and it is ensured that a machine tool is kept stable under the high-speed movement or high-load working condition.

This invention relates to the field of vehicle technology and discloses a spare tire mounting device and a vehicle. The spare tire mounting device includes a first connecting part, a second connecting part, and a spare tire mounting part. The first connecting part is connected to a first frame of the vehicle's tailgate frame assembly, and the second connecting part is connected to a second frame of the tailgate frame assembly. The spare tire mounting part provides a mounting point for the spare tire assembly located in the vehicle's trunk space. Applying the technical solution of this invention can solve the problem of limited spare tire placement in some vehicles in the prior art and can improve the torsional stiffness of the vehicle's rear structure.

The utility model relates to valve technical field, specifically disclose a gate valve valve rod with reinforcing rib structure, include: valve rod base, it is the cylindrical rod body of two -way stainless steel is made, and valve rod base top end has valve rod body, valve rod body and valve rod base are integral, and valve rod base and valve rod body jointly constitute the valve rod of gate valve. This has the gate valve valve rod with reinforcing rib structure, through annular equidistance distribution's trapezoidal reinforcing rib rod and the strip -shaped sliding slot of valve rod body inlay, the bending -resistant, torsional rigidity of take the handle of valve, and trapezoidal section optimization stress distribution effectively reduces the bending deformation risk under high -pressure working condition, and two -way stainless steel material's valve rod base and valve rod body integral molding, combine the local reinforcing effect of reinforcing rib rod, and the flush design of reinforcing rib rod and valve rod body avoids stress concentration point, reduces the risk of fatigue crack generation, along with the synergistic effect of positioning rod and limit ring, reduce the friction loss between moving parts.

According to the unmanned aerial vehicle rotor wing blade, the C-shaped beams are bonded to the front side and the rear side of the middle foam, the middle foam is clamped between the blade root metal lining and the blade tip foam lining and is wound into a whole through the winding girder, the winding girder and the C-shaped beams are bonded together to form a double-layer reinforcing beam structure, centrifugal force is resisted, and the flapping, shimmy and torsional rigidity of the blade is improved; the middle foam with the C-shaped beam, the blade root metal lining and the blade tip foam lining serve as internal supports for winding the girder, the winding quality and efficiency are improved, an integral structure of the blade root metal lining and the girder is formed, the bearing capacity of a blade body and blade root metal connecting interface is improved, the risk of interface failure of the blade root is effectively reduced, and the service life of the blade is prolonged. And the blade structure safety is improved. The impact-resistant explosion-proof coating is adopted as the front edge covering edge, the manufacturing period is shortened, later maintenance is facilitated, direct winding on a mold is achieved, the forming operation process is simplified, and the forming efficiency of the blade is improved on the premise that the same protection capacity of the impact-resistant explosion-proof coating and a metal covering edge is guaranteed.

The invention provides a back door assembly and a vehicle, and relates to the field of vehicle engineering.The back door assembly comprises a back door outer plate and a back door inner plate, and the back door inner plate is connected with the back door outer plate; the back door inner plate is provided with an upper area, a lower area and a boundary beam arranged around the back door inner plate. The section of the upper area protrudes towards the direction close to the back door outer plate; the cross section of the lower area protrudes in the direction away from the back door outer plate, and at least the cross section of the transversely-arranged edge beam is in a step shape. Thus, the section of the upper area protrudes towards the direction close to the back door outer plate, the width of a window frame opening can be shortened on the premise that the view field is guaranteed, and the rigidity of the area is guaranteed; the section of the lower area protrudes in the direction away from the back door outer plate, so that the distance between the back door inner plate and the back door outer plate is increased, and a large storage space is formed in the back door. Meanwhile, the cross section of at least the transversely-arranged edge beam is in a step shape, and the torsional rigidity and the collision impact resistance of the back door assembly are further improved.

The invention relates to a pendulum device (1) comprising a pendulum (2) with a horizontal pendulum axis (24) and with a horizontal axis (31) of a shelf (3) arranged in the upper end region of the pendulum (2), the weight of which is balanced by a counterweight (42) arranged in the lower end region of the pendulum. The pendulum device (1) can be connected to the furniture (5) via a receiving device (11) with a coupling device (12) that can be connected to the furniture (5). The pendulum (2) comprises a first pendulum rod (21) extending from the horizontal pendulum axis (24) to the upper end region, which is connected to the pendulum axis (24) by means of a first fastening device (13) and to the horizontal axis (31) of the shelf (3) by means of an upper fastening device (14). In order to achieve a particularly stable and torsionally rigid support, it is proposed that the pendulum (2) has a second pendulum rod (22) extending from the horizontal pendulum axis (24) to the upper end region, which together with the first pendulum rod (21) supports the horizontal axis (31) against the pendulum axis (24).

The present application relates to the technical field of vehicle torsion beam, and particularly discloses a torsion beam assembly avoiding stress concentration, which comprises a cross beam and a longitudinal arm, the cross section of the cross beam is a closed section, and the cross beam has a first area, a second area and a lap area in sequence from the center to the longitudinal arm; the cross section width-height ratio r of the first area satisfies 1.05<=r<=1.35, the cross section of the first area is a closed inverted U-shaped structure and the cross section perimeter change rate is not more than 14%; the cross section of the second area gradually changes from the closed inverted U-shaped structure to the closed trapezoidal structure which is connected with the lap area, the cross section perimeter increase rate of the second area is 10%-27%; the length of the second area is 18-40% of the length of the first area; the longitudinal arm is S-shaped, the longitudinal arm is bent to the side of the cross beam first, then is bent to the outside of the cross beam, and finally is in a straight structure, and the cross beam is lapped on the S-shaped bending area of the longitudinal arm. The present application is used to solve the problem that the existing torsion beam assembly is difficult to realize high torsional stiffness, excellent fatigue durability and light weight at the same time under the constraint of the space in front of and behind the cross beam and the top.

The invention relates to a rotor (4) comprising at least: a first rotor body (5) having a first set of permanent magnets (6); and a second rotor body (7) having a second set of permanent magnets (8), in which: the first rotor body (5) and the second rotor body (7) can be rotated relative to each other about a common axis of rotation (10) by means of a mechanical field attenuation mechanism (11) in order to overcome the action of the first torsional stiffness mechanism (9); the field attenuation mechanism (11) comprises a first lever element (60) pivotable about a fulcrum; the first rotor body (5) can be coupled to a first lever portion (61) of a lever element (60) and the second rotor body (7) can be coupled to a second lever portion (62) of the lever element, and the first lever portion (61) and the second lever portion (62) are positioned on opposite sides of the lever element (60) in the circumferential direction, and the lever element (60) is pivotally positioned on the rotor shaft (16); and a lever element (60).

The utility model relates to a railway fastener vertical shaft torsional rigidity testing mechanism, which belongs to the technical field of torsion machines, and comprises a machine body, a controller fixedly arranged on the side wall of the machine body and a test board fixedly arranged on the upper surface of the machine body, a transverse plate, a lifting plate and two chucks are arranged above the machine body, the top chuck is fixedly mounted on the lower surface of the lifting plate, and a hydraulic telescopic rod for adjusting lifting of the lifting plate is mounted on the transverse plate, so that the distance between the two chucks can be adjusted; a torsional rigidity testing mechanism for testing the vertical shaft of the railway fastener is mounted on the upper surface of the testing table and comprises a turntable and a bidirectional lead screw. According to the railway fastener vertical shaft torsional rigidity testing mechanism, the height of the lifting plate is adjusted through the hydraulic telescopic rod, so that the distance between the two chucks is adjusted, the railway fastener vertical shaft torsional rigidity testing mechanism can adapt to testing of vertical shafts of different lengths, the practicability of the torsional rigidity testing mechanism is improved, and the advantages of being high in practicability and good in testing effect are achieved.

The invention relates to a rigid chain, and belongs to the technical field of transmission chains, the rigid chain comprises a first chain and a second chain, the opposite sides of the first chain and the second chain are mutually engaged to form a rigid chain body, and the opposite sides of the first chain and the second chain are respectively provided with a first rack groove and a second rack groove along the length direction; by the adoption of the structure, the first rack groove and the second rack groove are formed in the opposite sides of the first chain and the second chain, so that the first chain and the second chain can be matched with the driving gear in a meshed mode, and the transmission mode that a traditional rigid chain uses a chain wheel to be meshed with a hole between a splicing shaft is abandoned; by adopting the meshing transmission of the rack groove and the gear, the meshing contact range is expanded, the stress balance in the transmission process is improved, the torsional rigidity in the transmission process can be enhanced, the shaking or tooth disengagement phenomenon in the operation process is avoided, the overall bearing capacity and transmission stability are remarkably improved, and the large-load and high-stability transmission requirements can be met.

The invention provides a device and a method for measuring the torsional rigidity of a speed reducer, which are used for measuring the torsional rigidity of a speed reducer to be measured and comprise a workbench, a loading mechanism and a loading mechanism are arranged on the workbench, and a loading speed reducer is arranged at the output end of the loading mechanism. A to-be-tested speed reducer is arranged at the input end of the load mechanism. A torque sensor is arranged between the loading speed reducer and the to-be-tested speed reducer. The device is used for measuring the torsional rigidity of the speed reducer, so that the measurement error caused by rigid deformation of a system is effectively reduced. When a torsional rigidity test is carried out, each movable part or moving part of the equipment moves stably, flexibly and sensitively without a retardation phenomenon, and the rigidity of the system can be ensured, so that the measurement precision is effectively improved.

The utility model discloses a quick-release double-side double-support adjustable telescopic mudguard which comprises a mudguard mechanism, the mudguard mechanism comprises a mudguard body, sliding grooves are symmetrically formed in the inner side of one end of the mudguard body, a fixing part is arranged on the inner side of the other end of the mudguard body, and two connecting supporting feet are symmetrically arranged at the lower end of the mudguard body; the extension plate is mounted on the inner side of the mud guard mechanism in a sliding manner and can extend along the mud guard mechanism; the metal supporting rod is fixedly connected with the fixing part through a fixing piece and is of a U-shaped structure. The quick-release double-side double-support adjustable telescopic mud guard disclosed by the utility model has obvious advantages. Firstly, through the U-shaped double-side design of the metal supporting rod and the cooperation of the metal supporting rod, the connecting rod and the support fixing base, double supporting is provided, the fixing strength and the torsion resistance are enhanced, the problem that traditional single supporting or simple double-side supporting is not firm is solved, the stability under the high-speed or bumpy road condition is ensured, and the safety is remarkably improved.

The present application relates to gear machining technical field, especially a kind of variable tooth thickness modification machining method for double lead worm gear and worm, including the wave form distortion rate of idle cutting force of hobbing cutter and torsional stiffness coefficient;Real-time monitoring cutting force wave form distortion rate and tool torsional deformation, calculate disturbance intensity index to divide disturbance level and set detection opportunity;Through the tooth thickness curve of actual measurement, tooth thickness change rate coefficient is obtained to judge machining quality;The tooth thickness deviation curve of unqualified tooth groove is analyzed to determine the dominant interference type, and the spindle speed or tool pose is regulated based on disturbance level;The control effect is verified by attenuation coefficient;When not up to standard, attenuation difference is used to optimize control coefficient;Finally, the overall quality of worm is evaluated by the consistency coefficient of tooth thickness change rate of each tooth groove of full tooth surface.The present application solves the problem that the full tooth surface consistency of formed worm is low due to the resonance and deformation disturbance of asymmetric characteristics of hobbing cutter in variable tooth thickness worm machining.

The invention discloses a vehicle forecabin reinforcing device and a vehicle, and belongs to the field of vehicle body structure design and manufacturing. The reinforcing device comprises a supporting main body formed by connecting a plurality of groups of tubular beams, and the supporting main body comprises a first cross beam suitable for being detachably connected with the firewall; the extending direction of the second cross beam is consistent with that of the first cross beam, one side end of the second cross beam is detachably connected with the left wheel cover, and the other side end of the second cross beam is detachably connected with the right wheel cover; the first connecting beam and the second connecting beam are symmetrically connected between the first cross beam and the second cross beam; the first extension beam and the second extension beam are symmetrically connected to the side, away from the first cross beam, of the second cross beam, the end of the first extension beam is detachably connected with the left wheel cover, and the end of the second extension beam is detachably connected with the right wheel cover. The torsional rigidity and the bending rigidity of the forecabin can be remarkably improved, the force conduction path under the small offset collision working condition is optimized, and the NVH performance is improved.

This application provides a method, apparatus, storage medium, and electronic device for determining the parameters of an elastic flywheel. The method includes: constructing an optimization model and solving the optimization model based on optimization variables, constraints, and an optimization objective to obtain calculation results. The optimization variables are the number of intermediate diaphragms, the thickness of a single intermediate diaphragm, and the positional relationship between any two intermediate diaphragms. The constraints are the total diaphragm thickness and the minimum strength range of the diaphragms. The optimization objective is to minimize the bending stiffness of the intermediate diaphragms. The target solution of the calculation results includes the target number of intermediate diaphragms, the target thickness of each intermediate diaphragm, and the target positional relationship between any two intermediate diaphragms. This method, while ensuring constant torsional stiffness, flexibly controls bending stiffness and strength by combining the number of diaphragms, diaphragm thickness, and diaphragm arrangement order, thus achieving both high reliability and shaft alignment compensation capability.

The utility model provides a frame of a two-wheeled vehicle and the two-wheeled vehicle, and relates to the technical field of two-wheeled vehicles, the frame comprises an upper edge tube, a tail tube and a mounting bracket, the rear end of the upper edge tube is connected with the tail tube, and a joint is formed; the installation support is arranged on the side, away from the upper edge pipe, of the tail pipe, and at least part of the installation support extends to the position above the connecting position in the extending direction of the tail pipe. The integral strength and the torsional rigidity of the frame are improved, and the integral structure is simple.

A method for monitoring a torsional rigidity of a rotationally driven system includes determining a first torsional-rigidity-dependent system parameter ensuing in a first region of the system, determining a second torsional-rigidity-dependent system parameter ensuing in a second region of the system, and presupposing that one region out of the two regions has a predetermined torsional rigidity. The first torsional-rigidity-dependent system parameter with the second torsional-rigidity-dependent system parameter. A change to the torsional rigidity of the system is determined in the other region based on a comparison result resulting from the comparing.

The utility model provides a speed reducer and a buffer structure, which comprise a speed reducer, the left side and the right side of the speed reducer are respectively in key connection with an elastic coupling with buffer performance, and the outer side of a bearing is provided with a buffer ring for buffering and fixing. Compared with the prior art, the bearing has the advantages that the buffering ring, the first magnetic sheets and the second magnetic sheets are arranged, the first magnetic sheets and the second magnetic sheets are distributed in pairs, the multiple sets of elastic modules are matched, vibration energy transmitted by the bearing can be weakened and absorbed, the vibration energy can be reduced, the vibration energy can be reduced, and the service life of the bearing is prolonged. The inner portion of the speed reducer is provided with a certain buffering structure, operation of the speed reducer is more stable, the elastic coupler is arranged, the torsional vibration performance of transmission is fully tuned through different torsional rigidities and damping coefficients, and the transmission efficiency is improved. And the speed reducer is helped to adapt to sudden loads generated in the processes of starting, braking and the like of a motor.

The utility model discloses an electric ship, including ship body structure, deck structure, ship bottom support structure, power system and advancing system. The utility model connects bridge through rigid connection piece body and two groups of lower piece, and the ship body torsional rigidity and transverse stability are improved obviously, form the low resistance navigation characteristic of catamaran's particularity, and the space utilization rate is optimized through the functional division of the layered arrangement upper deck and lower deck, and the grid skeleton of the ship bottom support structure is embedded, and the lower piece structure strength is strengthened, and the integrated ballast water tank function enhances the ship counterweight adjusting capacity, and the power system passes through the modularization battery pack, and the battery thermal runaway risk is reduced while ensuring the energy supply stability, and the advancing system adopts the combination scheme of sectional flange connection structure and watertight packaging subassembly, guarantees the transmission stability of drive shaft when the ship body deformation, avoids the water seepage into the transmission mechanism, satisfies the torsional deformation and the propulsion efficiency such as ship operation core demand.