20results about How to "Improve support stiffness" patented technology

The utility model discloses an integrated joint module and robot relates to motor technical field, and the integrated joint module includes: casing, motor, planetary gear reduction box, encoder and drive control board, the casing is the tubular structure, the motor is used to provide power, and the motor includes stator, rotor and rotation axis, and the stator is hoisted in the top inside casing, and the rotor rotatably sets up inside casing, and is located stator outside, and rotation axis is connected with the rotor, and its outer periphery is provided with the tooth, the planetary gear reduction box sets up in stator inside, and including fixedly installed inside stator's inner tooth ring, the planetary wheel that engages in the inner tooth ring with rotation axis between and the planetary wheel connection's planet carrier, the encoder includes the first encoder for monitoring rotation axis and the second encoder for monitoring planet carrier, and drive control board is located in casing, and is connected with motor. Such setting, can reduce the size of joint structure, realizes double magnetic encoder output configuration simultaneously, improves its output accuracy.

The application provides a bearing seat, an electric spindle assembly and a numerical control machine tool. The bearing seat comprises an outer seat body, an inner seat body, a damping structure and a cooling channel. The outer seat body forms an outer chamber, and the inner seat body is arranged in the outer chamber. A damping cavity is formed between the inner seat body and the outer seat body, and the damping structure is arranged in the damping cavity. The cooling channel is formed in the outer seat body, the inner seat body or the damping structure. The cooling effect and the damping effect are considered, the damping structure improves the support damping between the inner seat body and the outer seat body, and the vibration between the inner seat body and the outer seat body can be absorbed. The cooling liquid is introduced into the cooling channel, the heat generated by the high-speed rotation of the bearing can be taken away, the thermal deformation of the bearing and the bearing seat is prevented, the rotation accuracy of the electric spindle and the stability of the electric spindle operation are improved. The damping structure is formed by injecting a hot-melt glue type material into the damping cavity and solidifying, and the pressure of the damping cavity is not adjustable. The damping structure is formed by injecting metal powder, silicon oil or hydraulic oil into the damping cavity, and the pressure of the damping cavity is adjustable.

The utility model provides a vehicle driving system with a conjugate stator motor and a vehicle. A vehicle drive system may include a conjugate stator motor (10), a first gear train (30), a second gear train (40), a differential (50), and an engine (20). The conjugate stator motor comprises an inner motor (11) and an outer motor (12), and an inner motor stator (111) and an outer motor stator (121) share a stator core. The engine is in transmission connection with an inner motor shaft (113) through a first gear transmission mechanism and used for driving the inner motor to generate electricity. The outer motor rotor (122) is connected to the differential mechanism through the outer motor shaft (124) and the second gear transmission mechanism and used for driving the vehicle to run. An outer motor shaft is supported by a first bearing (B1) at one axial end of the conjugate stator motor; and at the other axial end of the conjugate stator motor, a second bearing (B2) is arranged between the inner motor rotor (112) and the outer motor shaft.

The invention discloses a vibration isolation and noise reduction structure for an acoustic detection array of a deepwater aircraft, the vibration isolation and noise reduction structure comprises a primary vibration isolation structure arranged between an array supporting seat and an inner cylinder, and the primary vibration isolation structure is a vibration isolation and noise reduction main body structure; the vibration isolation and noise reduction main body structure is mainly formed by alternately stacking resin plate layers and composite rubber layers, and a positioning isolation rubber mat is arranged at the bottom of the vibration isolation and noise reduction main body structure; and mass blocks which are uniformly distributed along the circumference are embedded into the composite rubber layer to form a local resonance design composite structure. According to the invention, the noise generated during the navigation of the vehicle can be isolated, so that the influence of the noise on the array is effectively reduced.

The utility model discloses an alumina feed control equipment is set up in the feed port of aluminium electrolytic cell, and its characterized in that includes: the tubular material channel, and the first side plate is set up to give place to the cavity, and the throttle baffle is slidably assembled in the first side plate, and through the give place to the cavity and can reciprocatingly enter the material channel inner chamber, the throttle baffle middle part is equipped with the through -hole of axial, and its through -flow cross -section area is less than the material channel nominal through -flow cross -section area, the motor is fixed in the material channel outer wall, and the output end and the throttle baffle constitute the motion transmission chain, wherein when the motor drive throttle baffle enters the working position, its board body hides the material channel flow cross section, and the material passes through the through -hole and is limited to flow. The utility model discloses a tubular material channel, throttle baffle with through -hole, motor and its motion transmission chain are set up, utilize motor drive throttle baffle and enter the working position quickly, make its board body hide the material channel flow cross section, and the material can only pass through the through -hole and is limited to flow, realized the instant, accurate regulation of alumina feed flow.

The utility model provides a connecting frame for building electrical equipment, relates to the technical field of building electrical installation structures, and aims to solve the problems that most connecting frames are lack of adjustable positioning assemblies, rapid disassembly, assembly and maintenance of electrical boxes are difficult to realize, and later overhaul or box body replacement is not facilitated. Comprising a bearing frame, a connecting bracket, a connecting carrier and an electrical connecting frame, an assembling side groove is formed in the side face of the bearing frame, and a threaded supporting column is rotationally arranged on the inner side of the assembling side groove; the connecting support is arranged on the side face of the bearing frame, and a shielding side plate is fixedly arranged on the inner side of the connecting support. The connecting carriers are arranged on the two sides of the connecting support, wiring side grooves are formed in the side faces of the connecting carriers, and connecting side grooves are formed in the side faces of the wiring side grooves; the electrical connecting frame is arranged at the top of the bearing bottom column; the electrical connection frame is slidably adjusted through the support of the sliding fulcrum shaft, so that the fit distance between the electrical connection frame and the connection support and the connection carrier is adjusted, and the electrical connection frame is arranged on the wall body to facilitate later line maintenance or box body replacement.

This invention discloses a structure for controlling the barrel pointing of a firearm, capable of adjusting the barrel pointing. It includes an outer receiver containing a receiver assembly, which includes an inner receiver, a barrel, a bolt assembly, and a feeding mechanism. The barrel is fixed to the front end of the inner receiver, the bolt assembly is housed within the inner receiver, and the feeding mechanism is mounted at the bottom of the inner receiver. A guide sleeve is provided in the outer receiver, hinged to the rear end of the outer receiver. The rear end of the inner receiver slides within the guide sleeve. An opening is provided at the front end of the outer receiver, through which the front end of the barrel extends. An adjustment mechanism is provided between the front opening of the outer receiver and the barrel. This adjustment mechanism has a stationary platform and a movable platform, both annular in shape. Multiple parallel telescopic mechanisms are provided between the stationary and movable platforms. The stationary platform is fixed to the outer receiver, while the movable platform is fitted onto the barrel in a sliding engagement. The telescopic mechanisms are used to adjust the angle of the movable platform, thereby adjusting the barrel pointing.

The invention relates to the field of rigid non-mooring detection robots, in particular to a non-mooring rigid robot for evaporator inter-tube detection, which comprises a ball screw forward module and electromagnetic steering joint modules, and the electromagnetic steering joint modules are mounted on the front side and the rear side of the ball screw forward module. The ball screw advancing module comprises a micro direct current motor and a sleeve buckle installed on an output shaft of the micro direct current motor, and the sleeve buckle is connected with a screw guide rail through threads. The micro direct current motor is fixedly connected to the movable joint, and the movable joint and the lead screw guide rail are each provided with a limiting mechanism. The limiting mechanism comprises two hinge shafts and two hinge hinges hinged to the two hinge shafts, hinge torsion springs are fixedly connected between the hinge hinges and the hinge shafts, and the two hinge torsion springs drive the two hinge hinges to have the trend of unfolding movement. The inter-tube environment of the evaporator can be effectively traversed, and the inter-tube environment can be detected in real time.

The invention discloses a display panel, a preparation method thereof and a display device. The display panel comprises a gap area located between a display area and a packaging area, the display area comprises a main display area and an edge display area, a partial area, adjacent to the edge display area, in the gap area and the edge display area form a transition area, supporting columns are located in the main display area and the transition area, the distribution density of the supporting columns in the main display area is A1, and the distribution density of the supporting columns in the packaging area is A2. The height of the supporting column is H1, and the area of the vertical projection of the supporting column on the substrate is S1; in the transition area, the distribution density of the supporting columns is A2, the height of the supporting columns is H2, and the area of the vertical projection of the supporting columns on the substrate is S2; a1 * H1 * S1 > A2 * H2 * S2. According to the display panel, the preparation method thereof and the display device provided by the embodiment of the invention, the transition region has relatively low supporting rigidity, so that the cover plate forms a relatively small bending curvature radius in the transition region, and the visibility of a Newton ring is weakened.

This application relates to a seat backrest. The seat backrest includes: a seat backrest frame; a first seat belt guide having a first end and a second end, the first end and the second end being supported on the seat backrest frame at positions spaced apart from each other in the width direction of the seat backrest frame, and guiding a seat belt withdrawn from a seat belt retractor; and a support member supporting the intermediate portion of the first seat belt guide between the first end and the second end from below.

The invention discloses a transmission structure and method of an oil injection pump and an electronic unit pump system, belongs to the technical field of engines, and solves the problems that a rotating shaft of an oil injection part is too large in torsional force and easy to damage. A transmission shaft sleeve used for being connected with an engine body is arranged at the end, close to a fuel injection pump cam shaft, of the fuel injection pump, a transmission shaft is rotationally arranged in the transmission shaft sleeve, an inner spline is arranged at one end of the transmission shaft, and a transmission outer spline sleeve is arranged on the inner spline. The transmission outer spline sleeve is sleeved on a fuel injection pump cam shaft of the fuel injection pump, a gear is arranged at the other end of the transmission shaft, a plurality of mounting grooves are arranged on the fuel injection pump on the outer side of the fuel injection pump cam shaft, and supporting bushes used for supporting the fuel injection pump cam shaft are arranged in the mounting grooves. According to the transmission structure and method of the fuel injection pump and the electronic unit pump system, the structure is compact, arrangement is convenient, camshaft faults are reduced, and the stability of the fuel injection pump is improved.

This invention discloses a repeatable locking mechanism based on disc spring unstable switching, including a support housing, a spindle, a motor assembly, a screw, a slider, a nut slider, a conical coil spring, a disc spring, and a self-locking mechanism. The invention also discloses a method for operating the above-mentioned repeatable locking mechanism, including: the motor assembly driving the spindle to rotate; the slider moving to a first driving position engaging with the upper screw, the spindle driving the upper screw to rotate via the slider; the upper screw driving the upper nut slider to move up and down, locking or unlocking the self-locking mechanism A; the upper screw driving the upper nut slider to continue moving downwards, after the conical coil spring undergoes torsional deformation, the nut slider pushes the slider downwards, causing the slider to move to a second driving position engaging with the lower screw, the spindle driving the lower screw to rotate via the slider. This invention enables selective locking and further improves the stiffness of the flexible arm.

The utility model discloses a reinforced speed reducer with a vertical structure. The reinforced speed reducer comprises a gear box body (1), an upper rack (9), an upper bearing seat (12) and an output shaft bearing seat (8), wherein the upper rack (9) is fixedly connected to the top of the gear box body (1); the upper bearing seat (12) is fixedly arranged at the top of the upper rack (9); a first bearing (11) is arranged in the upper bearing seat (12), and a second bearing (7) is arranged in the output shaft bearing seat (8); the upper end of the output shaft (6) sequentially penetrates through the gear box body (1) and the upper rack (9) and is supported in the first bearing (11), and the lower end of the output shaft (6) is supported in the second bearing (7), so that a two-end supporting structure for the upper end and the lower end of the output shaft (6) is formed. The supporting rigidity and the deflection resistance of the output shaft are obviously improved; meanwhile, a disassembly-free maintenance lubricating structure composed of the oil nozzle, the upper protective cover and the sealing plug is integrated at the upper bearing seat, and sealing protection and maintenance convenience are both considered.

The application relates to the field of aircrafts, and provides a tilt-rotor matrix distributed aircraft and a carrying device. According to the tilt-rotor matrix distributed aircraft provided by the application, a support arm and a wing are simultaneously arranged, the working states of the support arm and the wing are decoupled, the wing is always in a fixed state, the tilting of rotors is realized by the rotation of the support arm, the support arm tilts together with a rotor assembly arranged thereon, the downwash airflow of the rotor assembly is always kept from being blocked as much as possible, the rotor lift loss is reduced, the wing in the fixed state obtains sufficient lift by increasing the level flight speed during the tilting of the rotor, and the tilting process is smoothly transferred. The rotor assemblies are connected with the fuselage through the support arms, the distance between the rotor assemblies and the support parts of the fuselage is short, the support stiffness of the fuselage to the support arms is large, the rotary flutter problem between the rotor assemblies and the support arms is easily weakened by adjusting the stiffness design of the support arms, the rotary flutter boundary speed is improved, and a larger level flight speed is obtained.

The invention relates to the technical field of machining, and discloses a lathe positioning device and a lathe thereof.The lathe positioning device comprises a shell, an expansion piece and a driving unit, the shell comprises a first end and a second end which are arranged in the axial direction of an inner opening of a machined part in a spaced mode, the first end is connected to the lathe, and the second end extends into an inner hole of a to-be-machined part; an annular sliding surface is arranged on the peripheral surface of the second end, and the radial direction of the annular sliding surface is gradually increased from the second end to the first end; the expansion piece comprises an expansion part, the expansion part is arranged on the annular sliding face in a sleeving mode and can move in the axial direction of the inner hole, the expansion part can expand or contract in the radial direction of the annular sliding face under the guidance of the annular sliding face, and the expansion part is used for being supported on the wall face of the inner hole; the driving unit is arranged in the shell and used for driving the expansion part to move in the axial direction of the inner hole, then the expansion part is driven to correspondingly expand or contract in the radial direction so that the inner hole of the to-be-machined part can be supported or retracted, and supporting force can be provided by the shell through the expansion part during supporting.

The utility model provides a mounting bracket of a dynamic vibration absorber, which is used for vibration test of a vehicle, the dynamic vibration absorber comprises a mounting hole, the mounting bracket comprises a mounting seat, a first connecting piece and a second connecting piece, and the mounting seat is provided with a mounting surface which can be rigidly and detachably bonded with a to-be-tested part of the vehicle; the first connecting piece is fixedly connected with the mounting seat, and comprises a mounting rod which is matched with the mounting hole and can penetrate through the mounting hole to extend out; and the second connecting piece is detachably connected to the mounting rod and compresses and fixes the dynamic vibration absorber on the mounting bracket. According to the utility model, the technical problem that the process of replacing the dynamic vibration absorber in a real vehicle verification stage takes a long time can be solved.

The utility model discloses a kind of laser cutting machines, it is related to laser cutting machine technical field, comprising: rack;Workbench, the workbench is set on the rack, the workbench includes support frame and several racks, the support frame is opened with the rack one-to-one corresponding installation slot, the rack is long strip and is embedded in corresponding installation slot, each rack is spaced apart along the length direction of the workbench;Laser cutting module, the laser cutting module can be moved and is configured above the workbench, for executing cutting operation;Elastic plug, the elastic plug is arranged at the end of the installation slot, the elastic plug is detachably connected with the support frame, and the rack is fixed in the installation slot by the elastic force of itself;Through the synergistic effect of installation slot, assembly slot and elastic plug, the rack is realized multi-point limiting and elastic fastening, effectively prevent rack loosening and displacement, while greatly shorten rack replacement time.

The application provides an intelligent cover ventilation device of a railway system, and relates to railway operation and maintenance technology.The device comprises: a lifting structure comprising two groups of lifting assemblies that are cross-hinged in an X shape, one side of the top of the lifting assembly is connected with the bottom of the cover through a sliding part, one side of the bottom of the lifting assembly is connected with the top of a support structure through a sliding part, the other side of the top of the lifting assembly is connected with the bottom of the cover, the other side of the bottom of the lifting assembly is connected with the top of the support structure, a driving element is arranged on the support structure, the end of the driving element is connected with the sliding part, the driving element moves to the end away from the sliding part, and the driving element drives the lifting assembly and the cover to lift; a ventilation structure is arranged in a ventilation hole, the outer side wall of the ventilation structure is fixedly connected with the inner wall of the cover, the top of the ventilation structure is provided with a wind control structure, the wind control structure is arranged in a gap with the ventilation structure, and the side wall of the wind control structure is fixedly connected with the inner wall of the cover.The device solves the problem that cable equipment cannot be safely and stably operated.

The invention discloses a dome cover skin forming composite tool and a using method thereof.The dome cover skin forming composite tool comprises a composite die body made of the same material as a dome cover skin workpiece, the inwards-concave spherical surface of the composite die body is a forming functional surface used for forming the dome cover skin workpiece, and a plurality of reinforcing ribs are arranged on the outwards-convex spherical surface of the composite die body; and the metal frame is connected with the outer convex spherical surface of the composite material die body through a flexible connecting piece. The device has the characteristics of being high in forming precision, convenient to adjust and the like, and meanwhile, the mounting precision, the supporting strength and the rigidity of the composite dome cover skin are improved.