259 results about "Torsional Forces" patented technology

A dematerialized information handling system display stand supports a display assembly with vertical adjustments using a single injection molded polyoxymethylene (POM) sliding member inserted in an extruded aluminum riser. A compression spring locks the sliding member in place with torsional force that releases to enable vertical movement. A hinge member couples to the sliding member to accept a display support that extends out of the riser and couples to the display assembly. Vertical sliding movement is provided with an assembly that uses only one screw for ease of assembly and disassembly.

The invention relates to the technical field of handheld gun drills, and discloses a brushless motor driven pistol drill which comprises a shell, the inner wall of the shell is fixedly connected with a brushless motor, the inner wall of the shell is rotatably connected with driving teeth through a bearing, a buffer mechanism is arranged in the shell, the buffer mechanism comprises a driving rod, and the driving rod is fixedly connected with the brushless motor. The outer wall of the side, close to the driving teeth, of the driving rod is fixedly connected with the inner wall of the driving teeth, the outer wall of the driving rod is connected with a hinged plate through a rotating shaft hinge, the other end of the hinged plate is fixedly connected with the outer wall of the connecting rod through a rotating shaft, and the inner wall of the driving rod is fixedly connected with an elastic push rod. And the other end of the elastic push rod is fixedly connected with the inner wall of the connecting rod. According to the handheld gun drill, the buffering mechanism is arranged to release reverse twisting force generated when the drill bit drills holes, the situation that the temperature of the brushless motor is increased due to the fact that instantaneous resistance of the brushless motor is increased is prevented, and the stability of the handheld gun drill in the working process is improved.

The invention discloses an insulator quality detection device with an intelligent clamping function, and relates to the technical field of electric power equipment detection.The insulator quality detection device comprises a detection box, a driving unit, an anti-movement unit, an intelligent clamping unit and a composite insulator, and the detection box is used for installing and fixing the driving unit, the anti-movement unit, the intelligent clamping unit and the composite insulator; the driving unit is used for providing torsional force, the anti-movement unit is used for preventing axial movement of the composite insulator in the test process, the intelligent clamping unit is used for clamping the composite insulator, and after the composite insulator is clamped and fixed through the intelligent clamping unit, the torsional force is provided through the driving unit for torsion test. Through the anti-play unit, the composite insulator is prevented from axial play in the rotation process, and the situation that the axial play introduces extra friction force and changes the stress state, and consequently the measured torque value is not pure, and the test result is not accurate is avoided.

The utility model discloses a kind of flap mechanisms, including box, box cover, baffle, hinge, sheet metal support, spring steel wire and pulley;Box top is equipped with box cover, baffle is fixedly connected in box outer wall one end, hinge is located at baffle both ends, sheet metal support is fixedly installed in baffle one end, spring steel wire rotation is connected in sheet metal support lower side both ends, pulley rotation is connected in one end of spring steel wire.The utility model is compared with prior art's advantage lies in: the utility model utilizes the spring steel wire and the elasticity and torsional force of repeatedly contact cooperation between hinge to promote hinge, when hinge moves back, hinge profile promotes pulley movement, box cover is in open state at this time, the angle of opening and closing is locked by limiting screw and cam limiting boss between pulley and hinge simultaneously, it is convenient to open and close box cover stably, and the present mechanism does not need gas spring, service life is long, the stability when box door cover opens and closes is improved.

The invention relates to the technical field of sucker rods, and provides a high-pressure-resistant sucker rod with a locking structure, the high-pressure-resistant sucker rod comprises a connecting assembly and sucker rod assemblies, the sucker rod assemblies are fixedly mounted at the upper end and the lower end of the connecting assembly, and the connecting assembly comprises a rotating mechanism; elastic blocking assemblies are fixedly connected to the upper and lower ends of the periphery of the middle of the rotating mechanism, connecting mechanisms are rotatably connected to the peripheries of the upper and lower ends of the rotating mechanism, impact assemblies are fixedly connected to the sides, close to the middle of the rotating mechanism, of the connecting mechanisms, and adjusting assemblies are arranged on one sides of the impact assemblies. The balls II in the connecting seats at the upper end and the lower end rotate on the peripheries of the upper end and the lower end of the rotating seat, so that the connecting seats at the upper end and the lower end can easily rotate on the periphery of the rotating seat, and the twisting force of the sucker rod assembly is released; the situation that the sucker rod assembly is twisted due to the change of the direction of force acting on the sucker rod assembly in the oil pumping process, and connection between the sucker rod assembly and the connecting assembly is loosened is avoided.

The utility model discloses a kind of Type-C connectors with flexible torsional force protection, including connector base and Type-C connector joint;The connector base is connected between Type-C connector joint by rotating structure, so it has the function of flexible torsional force protection;The connector base is compressed with Type-C connector joint by cover, to prevent the connector base and Type-C connector joint from loosening.The utility model connector base is connected between Type-C joint by rotating structure, so that joint can rotate flexibly when being subjected to external force torsion, without damaging internal contact point;By the reset spring set, joint can automatically return to initial position after torsional force is removed, effectively protect connector internal component, enhance its service life.

The invention relates to the technical field of wind power generation, and discloses a truss type tower of a wind turbine generator and the wind turbine generator, the truss type tower comprises a plurality of longitudinal trusses, and a plurality of supporting rods are fixedly connected to the inner walls of the longitudinal trusses. The second fixing plate presses the belleville spring on the right side to deform, and potential energy is accumulated. When the torsional force stops and the inner ring stops moving, the belleville spring releases potential energy, so that the inner ring restores to the original position, and the situation that when the fan blades rotate, the generator set generates the torsional force around the axis direction of the tower frame is effectively prevented, and the torsional force can act on the truss type tower frame. Due to the fact that wind power changes rapidly and violently, torsional force can repeatedly act on the truss type tower, and the service life of the tower is shortened.

This application provides an anti-detachment elastic joint and its manufacturing method, as well as a rail vehicle. A wavy, concave-convex interlocking structure is provided between the outer circumferential surface of the rubber sleeve annular segment and the inner circumferential surface of the sleeve annular segment, and / or between the outer circumferential surface of the mandrel cylindrical segment and the inner circumferential surface of the rubber sleeve annular segment. This allows the rubber sleeve to be fixed to the mandrel and / or sleeve not only through adhesion but also through interlocking and locking via the concave-convex interlocking structure. This wavy, concave-convex interlocking structure generates a large interlocking and locking force in the radial direction, an axial blocking force in the bending section of the axial bending path, and an anti-torsional force on the sidewall of the circumferential bending path. Therefore, it has high anti-detachment capability in the radial, axial, and circumferential directions, and its overall anti-detachment capability is far superior to that of a straight concave-convex interlocking structure. This effectively reduces the risk of the rubber sleeve peeling off from the mandrel and / or sleeve, achieving a better anti-detachment effect.

The invention provides a flexible temporary pier structure for large-span steel box girder cantilever construction and a construction method, temporary piers are symmetrically arranged on the two sides of the cross section of a steel box girder, each temporary pier is composed of a lower pier body, a height-adjustable upper pier body and a sleeper beam, the upper pier bodies and the lower pier bodies are sleeved and matched through steel pipes, the height is fixed through locking of wedge-shaped blocks, and pre-embedded inner pipes are arranged in the lower pier bodies; the flexible anti-torsion assemblies are arranged between the temporary piers and the steel box girders, and the flexible anti-torsion assemblies are vertically and loosely arranged and only transmit tensile and anti-torsion acting force in the transverse bridge direction. During construction, the lower pier body is firstly constructed and welded and horizontally connected to form a frame, the upper pier body is hoisted to synchronously push the embedded inner pipe to complete anchoring, the flexible anti-torsion assembly is installed after the steel box girder cantilever is assembled, the upper pier body is jacked to the designed elevation and locked, and the temporary component is dismantled after construction is completed, so that the construction anti-torsion stability of the cantilever can be improved; and vertical additional stress on the steel box girder is avoided. The problems that in steel box girder cantilever construction, a transverse anti-torsion structure is poor in stability and low in construction efficiency are solved.

The utility model discloses a pillar assembly, including pillar body, brake component, mount and seal cover unit, the pillar body is stepped shaft structure, the pillar body is sleeved with brake component and mount in proper order, the upper end of brake component forms boss, the boss forms plug-in fit with the recess on mount, the boss and pillar body are coaxial. The shock absorber has the beneficial effect of solving the problem that the shock absorber cannot release or limit the applied torsional force and deflection force.

The invention provides a half-wool fabric clean color fastness soaking device, and relates to the field of half-wool fabric soaking. A first adjusting assembly is fixedly arranged at the top of the soaking box; a second adjusting assembly is arranged in the sliding frame, and a driving structure is further arranged in the sliding frame. A clamping structure is fixedly arranged on the outer side of the bottom of the second adjusting assembly, and the second adjusting assembly, the driving structure and the clamping structure are symmetrically arranged at two positions. A driving structure and a second adjusting assembly are arranged; the two sets of clamping structures can drive the two sides of the to-be-tested fabric to rotate reversely or rotate in the same direction, so that the fabric can bear torsional force in a solution, the washing environment in actual use can be simulated, and the problems that the washing environment in actual use is inconvenient to simulate, and the working efficiency is low are solved. The capability of simulating the twisting force bearing of the fabric in the liquid medium is lacked.

The utility model discloses a manual release device for parking braking of a rail locomotive vehicle, and aims to overcome the defect that the manual release device for parking braking is failed due to the fact that a sliding block is easily blocked by a manual release device for braking adopting a sliding block-guide rod structure. The pawl and the ratchet wheel are arranged in an offset mode, the pull rod is used for controlling the pawl to rotate, the pawl is connected in the relieving box in a hinged mode and can abut against the ratchet wheel, the ratchet wheel and a non-self-locking screw rod which is in transmission connection with a brake shoe to move are coaxially arranged and are in transmission connection, the pawl comprises a pawl body and a pawl handle, and the pull rod is connected with a sliding rod. The sliding rod is inserted into a guide sleeve of the relieving box and is in sliding connection with the guide sleeve, a check block is arranged at the end of the sliding rod, a movable groove is formed in the check block, and the claw handle extends into the movable groove. The claw handle is contacted in the mode that the movable groove is formed in the check block on the pull rod, so that the pull rod only bears axial tension, and the situation that in an original structure, due to the fact that the sliding block bears eccentric torsional moment from the claw handle, the sliding block is easily pulled or clamped on the guide rod in the resetting process is avoided.

The utility model discloses a manipulator, which belongs to the technical field of bionic robots and is characterized in that a palm center is arranged on one side of a palm body along the thickness direction of the palm body; the fingers are arranged on the palm body, a first output shaft of the driving device is provided with knuckles to drive the knuckles to rotate, at least one knuckle is a buffering knuckle, and second matching parts and receding grooves of the buffering knuckles are arranged in the circumferential direction of the first output shaft. The first matching part of the first output shaft is at least partially located in the receding groove and moves relative to the corresponding buffering knuckle in the circumferential direction of the first output shaft so as to make contact with or be separated from the second matching part, and the torsional spring is connected with part of the structure of the driving device and the buffering knuckle. Torsion of the torsional spring enables the buffering knuckles or the driving device to have the tendency of rotating away from the palm center. The finger knuckles or the driving device can be bent close to the center of the palm under the action of external force, the first matching part and the second matching part are separated, the first matching part partially moves in the avoiding groove, and therefore buffering is achieved.

Method for manufacturing a stator (1) for an electric machine (2) for driving a motor vehicle (3), comprising: - providing a stator base body (4) with a plurality of stator slots (5), - arranging hairpins (6) in the stator slots (5) such that the hairpins (6) are arranged in the stator slots (5) in the radial direction (R) of the stator base body (4) in several hairpin layers and hairpin ends (7) of the hairpins (6) project from the stator base body (4) in the axial direction (A) of the stator base body (4), wherein the hairpin ends (7) each have a hairpin end surface (8) limiting the hairpins (6) in the longitudinal direction (L) of the hairpins (6), wherein a hairpin end side (9) of the hairpins (6) has a concave end contour (10) which extends towards the hairpin end surface (8),and- twisting the hairpin ends (7) in a circumferential direction (U) of the stator base body (4) by engaging a twisting tool in the concave end contours (10) and exerting a twisting force on the hairpin ends (7) by the twisting tool in a circumferential direction (U) such that radial guidance of the hairpin ends (7) during twisting is ensured by the interaction of the twisting tool with the concave end contour (10), wherein a compressive force component in the circumferential direction (U) and a compressive force component in the radial direction (R) are transmitted to the concave end contour (10) by the twisting tool during twisting on the concave end contour (10).

The utility model discloses a hydraulic torque wrench comprehensive test bench comprising a test work panel, the test work panel is provided with a torsional force detection assembly, and a torque sensor of the torsional force detection assembly is connected with the test work panel and a mounting sleeve through bolts. The transition head is connected with the sensor connecting flange through a transition spline, the test working panel is provided with a counter-force assembly in the radial direction of the torsional force detection assembly, the counter-force assembly comprises a frame, a clamp which is opened and closed along the guide mechanism is installed in the frame, and the movable end of the clamp is in linkage with the driving mechanism. And one end of the hydraulic torsion wrench is mounted with the torsion force detection assembly, and the other end of the hydraulic torsion wrench is clamped and limited in the clamp, so that hydraulic wrenches with different sizes can be clamped, and the applicability is improved.

The present invention relates to an improved damping system for effective and safe use in a DTH and rotary drill. This system aims to alleviate the problems caused by heavy impacts and torsional forces that the drill machine and the drill string transmit to each other and withstand, mitigating them by incorporating nitrile seals, damped rigid metal plates between high-density polyurethane pieces, and other improvements. The system comprises: - a body of the damping system; - a protective casing, which has hatches for visually inspecting same; - an upper threaded conical portion for screwing onto a drill machine; - an upper portion bolted to the body by a series of upper fastening bolts; - an intermediate area comprising metal plates which are connected by polyurethane damping pieces interposed between them and which are arranged around the intermediate area of the body of the damping system; - an improved system for adjusting the lower damper; - a lower portion bolted to the body by lower securing bolts; and - a lower threaded case into which a drill string can be screwed. All of this is configured so that the improved damping system provides effective damping between the drill machine, the drill string and a tricone bit (not shown) of a rotary drill and a bit of a rotary-percussion drill.

The utility model provides a mounting structure of a discharging hopper of a grain counting machine, which solves the problem that the replacement of the current discharging hopper is time-consuming and labor-consuming. The through groove is formed in the lifting block; the first convex part is arranged on the connecting plate; the first mounting hole is formed in the rear end of the through groove and communicates with the through groove; the rotating shaft is used for being matched with the first mounting hole; the notch is formed in the rotating shaft and located at the communicating position of the through groove and the first mounting hole; the handheld part is arranged at one end, outside the first mounting hole, of the rotating shaft; the elastic reset piece is arranged at the other end of the rotating shaft; and the limiting block is arranged on the side edge of the lifting block. When the discharging hopper needs to be installed, the rotating shaft is rotated, meanwhile, the elastic reset piece generates twisting force, when the notch corresponds to the through groove, the first protruding part is inserted into the through groove, then the handheld part is loosened, the elastic reset piece resets, the surface of the rotating shaft makes contact with the first protruding part and abuts against the first protruding part, and the discharging hopper is installed on the lifting block. And when disassembly is needed, only the notches are required to correspond to the through grooves.

The utility model discloses a pivot device capable of being operated by a single hand, which comprises a shell, a torsion component is fixedly arranged in the shell, an axis component is meshed and connected in the torsion component, a connecting component is fixedly arranged at one end of the axis component, and an auxiliary component used for assisting the operation by the single hand is arranged outside the torsion component. According to the pivot device capable of being operated by one hand, through the axis component and the torsion component, the pivot device can be more stably kept at a set position after being adjusted, and angle deviation or shaking caused by single axis is avoided; the central gear between the two axes drives the other rotating shaft to rotate when one rotating shaft rotates, so that the screen can be opened in a more labor-saving manner, additional twisting force can be provided through the auxiliary assembly and the torsional spring, a user is helped to easily open the screen of the notebook computer by a single hand, and especially for a notebook computer with large damping or a heavy screen, the screen can be opened more easily by one hand. The user does not need to spend too much effort, and operation is more convenient.

The invention relates to the technical field of vehicles, in particular to an angle module with an active torsion bar spring and a control method of the torsion bar spring, the angle module comprises a wheel assembly, a steering knuckle, a steering mechanism, a lower control arm and a torsion bar spring mechanism, and the steering mechanism is connected with the wheel assembly through the steering knuckle; the lower control arm comprises a lower control arm body, a first connecting part, a second connecting part and a third connecting part, the torsion rod spring mechanism comprises a driving device and a torsion rod spring, the torsion rod spring penetrates through the second connecting part and the third connecting part, one end of the torsion rod spring is in spline fit with the second connecting part, and the other end of the torsion rod spring is connected with the driving device; the driving device is used for being connected with a frame so as to drive the torsion rod spring to rotate. The torsion bar spring mechanism has the advantages that through the driving motor of the torsion bar spring mechanism, the torsion moment of the torsion bar spring can be adjusted in real time, the wheel posture can be actively adjusted, vehicle heeling and pitching are effectively restrained, and the vehicle handling stability and riding comfort are remarkably improved.

The invention relates to the related technical field of laser measurement, in particular to a building curtain wall flatness detection device which comprises a shell, a rotating part, an adjusting screw rod, a first suction cup, a second suction cup, a standard module, a leveling module, an operation module, a track module and a laser device. Through a mandatory mistake proofing mechanism, when the shell deflects relative to the rotating piece, a clear feedback is given to an operator, and the operator is forced to adjust the equipment to be fixed continuously, so that measurement errors and unstable adsorption caused by torsional force are avoided fundamentally, stability and reliability of front and rear references are ensured, and the accuracy of the device is improved. And the leveling block naturally droops like a pendulum by utilizing gravity, the top surface of the leveling block is an absolute horizontal plane, and the absolute horizontal plane is taken as a standard and is taken as a horizontal standard, so that the operation is greatly simplified, the dependence on manual visual leveling in a traditional method is eliminated, the manual judgment error is eliminated, and the leveling device is simple in overall structure, convenient to operate and excellent in effect.

A dematerialized information handling system display stand supports a display assembly with vertical adjustments using a single injection molded polyoxymethylene (POM) sliding member inserted in an extruded aluminum riser. A compression spring locks the sliding member in place with torsional force that releases to enable vertical movement. A hinge member couples to the sliding member to accept a display support that extends out of the riser and couples to the display assembly. Vertical sliding movement is provided with an assembly that uses only one screw for ease of assembly and disassembly.

The utility model discloses a high-damping balance force accessory tensioner, which comprises a shell, a shaft core, a swing arm and a belt pulley, the shaft core is arranged in the shell, a rotary drum is arranged at one end of the swing arm, the rotary drum is rotatably sleeved on the shaft core, the belt pulley is arranged at the other end of the swing arm, and the high-damping balance force accessory tensioner is characterized in that a spring is arranged between the rotary drum and the shell, and the shaft core is arranged in the shell. One end of the spring is connected to the rotary drum, the other end of the spring is connected to the shell, the torsion moment direction of the spring is parallel to the stress direction of the gear train, the rotary drum is sleeved with a damping sleeve, the damping sleeve is sleeved with the spring, a hoop is further arranged between the spring and the damping sleeve, and the hoop is tightly arranged on the lower portion of the damping sleeve in a sleeved mode. The upper end of the hoop is a spiral rising face matched with the spiral direction of the spring. By improving the layout angle of the spring, abnormal sound and service life attenuation caused by deflection of the belt pulley are reduced.

The invention relates to the technical field of stainless steel pipe fittings, and discloses a novel connecting structure of a stainless steel composite steel pipe. Through the arrangement of the structures of the plug-in, the slot, the son sleeve and the mother sleeve, the side surfaces of the plug-in directly form mechanical interlocking. Relative sliding and loosening at the connecting position are completely eradicated in principle, the safety and reliability of the connecting joint are greatly improved, and the connecting joint is particularly suitable for the scenes bearing large torsional force and having extremely high requirements for stability. Through the cooperation of the plug-in unit, the hoop and other components, the plug-in unit can naturally guide the two steel pipes to be rapidly aligned and achieve preliminary circumferential and axial positioning in the plug-in connection stage, installation is convenient and fast, and site construction is easy. In the locking stage, final fixing can be completed by tightening the hoop through a simple locking piece, the hoop directly presses the outer surface of the female sleeve plug-in, and the two sleeves are rigidly and fixedly connected into a whole. Therefore, the long-term stability and the bearing capacity of the whole connecting structure under the complex load can be ensured.

The utility model discloses a novel damping device for an elevator main engine, which belongs to the technical field of damping devices and comprises a support component, the support component comprises a first support plate, a spherical hinge support plate is integrally arranged above the first support plate, a spherical core is hinged inside the spherical hinge support plate, and a second support plate is arranged above the spherical hinge support plate. A second support plate is integrally arranged at the top of the ball core; a plurality of groups of belleville springs are connected between the first support plate and the second support plate; and the honeycomb base plate is connected to the upper surface of the second support plate, and the center of the honeycomb base plate is fixedly connected with a threaded connecting rod. Three-degree-of-freedom bearing is achieved through the supporting assembly, vertical pressure, horizontal shearing force and torsional moment are borne at the same time through cooperation of a ball core and a sliding interface, a three-dimensional stress system is formed, meanwhile, load uniformization is achieved, stress distribution is uniform through the spherical surface contact design, and local stress concentration is avoided.

The application discloses a torsional negative stiffness vibration isolation device based on pre-tensioned springs and belongs to the technical field of vibration isolation devices.The vibration isolation device can normally transmit the rated torsional motion of a system, reduces the torsional dynamic stiffness of the system, lowers the natural frequency, realizes the torsional vibration isolation of shaft system components under low-frequency and ultralow-frequency bands, and has a good vibration isolation effect.Two ends of two connecting rod devices are connected in a hinged manner on an inner part and corresponding sliding blocks respectively, the two sliding blocks are limited in displacement directions through sliding grooves fixed on the inner side of an outer part, and elastic elements generate acting forces on the two sliding blocks and apply torsional moments on the inner part through the two connecting rod devices.The application introduces a negative stiffness device, reduces the torsional dynamic stiffness of a shaft system structure, lowers the natural frequency of the system in the torsional direction, and realizes the vibration isolation function under low-frequency and ultralow-frequency bands.

The invention discloses an undercarriage buffer torsional moment testing device and a testing method. The testing device adopts a lead screw elevator to push a tested buffer piston rod to be compressed, and adopts a rotary speed reducer to drive the buffer piston rod to rotate through a torque arm and can move up and down along with the piston rod. According to the test method, the torsional moment of the buffer can be tested in the compression amount change process of the tested buffer, and the compression amount and the torsional angle of the buffer are recorded. The device is easy to install, the test scale is reduced, and the test cost can be saved.

According to the technical scheme, the combined curtain track is characterized in that the combined curtain track comprises a track body provided with a clamping part and a guide rail connector, and the outer side edge of the guide rail connector extends downwards to form a clamping edge matched with the track body; a first protrusion extending transversely and a second protrusion extending obliquely downwards are symmetrically arranged on the side wall of the track body, and the length of the first protrusion is larger than that of the second protrusion. And a first groove and a second groove which are respectively matched with the outer contours of the first lug boss and the second lug boss are formed in the clamping edge outside the track main body. The rigidity of the track body is improved through the arrangement of the first protrusions, and bending, twisting and deformation caused by stress of the track are reduced; the clamping edges can generate reverse torque through friction force and mechanical limiting to offset external torsional moment. The first groove and the second groove are connected and matched with the first protrusion and the second protrusion, stress concentration is avoided, and the service life of the track body is prolonged.

The air spring comprises a bearing installation seat and a lower installation seat, the lower installation seat is arranged at the bottom of the bearing installation seat, an automobile body installation seat is arranged outside the bearing installation seat, a first bearing is arranged at the top of the bearing installation seat, and a second bearing is arranged between the bearing installation seat and the automobile body installation seat. According to the air spring with the multiple bearings, the design requirement for bearing lateral force and torsional force of the air spring is met, and the sealing performance is reliable.

The invention provides an underground isolating valve. The underground isolating valve comprises a central pipe, a bypass pipe and a ball seat, the bypass pipe is fixed in the central pipe; the ball seat is arranged in the bypass pipe; the ball seat can slide in the axial direction relative to the bypass pipe so as to be switched between the conduction position and the closed position. The concave-convex structure forms circumferential constraint, and rotation of the ball seat around the axis of the ball seat is limited. In the drilling operation, when a drill bit makes contact with the ball seat and exerts huge torsional moment, due to the fact that the ball seat is firmly locked by the concave-convex structure and cannot rotate along with the drill bit, cutting force of the drill bit can be completely used for cutting materials, drilling of the ball seat is facilitated, and drilling failure and underground accidents caused by slipping are avoided.