79results about "Rotating bodies balancing" patented technology

The invention relates to a side-hung rotating platform real-time counterweight device, a side-hung rotating platform and a control method, and belongs to the technical field of automation equipment. According to the application, the eccentric load torque of the load is monitored in real time, and the counterweight assembly driven by the linear motor is controlled to move according to the eccentric load torque, so that the counterweight force arm is dynamically adjusted, and the reverse counterweight torque is accurately generated to counteract the eccentric load torque. And when the movement compensation is insufficient, the number of the balancing weights can be increased, so that the balancing weight quality is improved. The motion precision can be effectively improved, the equipment is protected, and the stability is improved.

The invention discloses a servo direct-drive high-frequency swing mechanism, and belongs to the technical field of bearing machining equipment. A swing spindle attached to the housing; one end of an output shaft of the servo motor is connected with the rear end of the swinging main shaft, and the other end is connected with a servo encoder for controlling the swinging amplitude and the swinging frequency of the swinging main shaft; the swing head part is connected with the front end of the swing spindle and used for machining a bearing groove, a front end cover is arranged at the front end of the swing spindle and connected with a support, a screw is rotationally connected to the support, and the shell is in threaded fit with the screw. The swing frequency adjusting device has the characteristics of shortened and compact structure, convenience in adjustment, attractive appearance and the like, and the swing frequency of the ball bearing channel superfinishing machine can be improved, so that the superfinishing rhythm is accelerated, the superfinishing precision is improved, and the machining performance of a machine tool is improved.

A compressor comprising a compressor housing (12), a scroll compressor unit (22) arranged in the compressor housing (12) with a first, stationary compressor body (24) and a second compressor body (26) movable relative to the stationary compressor body (24), the first and second spiral ribs (34, 38) of which are designed in the form of a circular involute and engage with one another to form compressor chambers (42) when the second compressor body (26) is moved relative to the first compressor body (24) on an orbital path (48), an axial guide (96) which supports the movable compressor body (26) against movements in a direction parallel to a central axis (44) of the stationary compressor body (24) and guides it during movements in a direction transverse to the central axis (44), an eccentric drive (242) for the scroll compressor unit (22),which has a driver (246) driven by the drive motor (222) and rotating on the orbital path (48) around the central axis (44) of a drive shaft (228), which in turn cooperates with a driver receptacle (282) of the second compressor body (26), and a coupling (164) preventing self-rotation of the second compressor body (26), wherein the eccentric drive (242) has an eccentric drive pin (244) driving the driver (246) and a mass balancing body (254), and wherein the eccentric drive pin (244) and the mass balancing body (254) are arranged on opposite sides of a mass balancing plane (ME), characterized in that the mass balancing body is designed as a mass balancing pin (254), that the mass balancing pin (254) is an element of a movement limiting unit (264) for the driver (246) is.,

To provide a resin composition that allows curing to a deep region by irradiation with energy rays.SOLUTION: The present invention relates to a photocurable resin composition comprising a radical polymerizable component (A), a photopolymerization initiator (B), a filler (C), and an organic peroxide (D), wherein the component (A) includes a polyfunctional (meth)acrylate (A1) and / or a monofunctional (meth)acrylate (A2) having a (meth)acrylamide group, the component (B) is an intramolecular cleavage-type photoradical polymerization initiator, the component (C) has a specific gravity of 4.0 or more, a total content of the component (A1) and the component (A2) is 26 pts.mass or more and 100 pts.mass or less with respect to 100 pts.mass of the component (A), and a content of the component (D) is 1.3 pts.mass or more with respect to 100 pts.mass of the component (A).SELECTED DRAWING: None

The present invention relates to a grinding machine comprising a housing, a drive assembly, a fan assembly, and a base assembly. The drive assembly has a motor shaft. The fan assembly comprises a mounting disc as well as cooling fins and dust collection fins integrated into the mounting disc. The fan assembly has a partially thickened first weight section integrated into a second surface, the mass of which is less than or equal to 13% of the mass of the fan assembly. A balancing element is provided between the fan assembly and the base assembly, the balancing element having a center-of-mass adjuster projecting from a circumference and located on the same side of the motor shaft as the first weight section.In the invention, weight balancing is achieved by means of the fan arrangement and the independent balancing element in order to achieve a good compromise between the functionality (cooling, dust collection and weight balancing), economy and ease of use of the grinding machine.

The utility model relates to the technical field of rotor shafts, and discloses an atomizer stable rotor shaft which comprises a rotor rotating shaft, a protective sleeve is arranged on the shaft wall of the rotor rotating shaft in a sliding mode, a threaded hole is formed in the end portion of the rotor rotating shaft, and the inner wall, located in the threaded hole, of the rotor rotating shaft is in threaded connection with a tail threaded rod. A rotor upper counterweight ring and a rotor lower counterweight ring are respectively sleeved on the shaft walls of the rotor rotating shaft, which are positioned at the two ends of the protective sleeve; and a plurality of bolts are respectively connected with the joints of the rotor upper counterweight ring and the rotor rotating shaft as well as the joints of the rotor lower counterweight ring and the rotor rotating shaft around threads. According to the bolt provided by the utility model, the rotor upper counterweight ring and the rotor lower counterweight ring can be conveniently detached and replaced, the counterweight effect of the rotor rotating shaft can be adjusted, and the counterweight of the rotor rotating shaft can be conveniently adjusted according to use requirements, so that the stability of the rotor rotating shaft in use can be improved.

The invention relates to a method for actively balancing a rotor (1), comprising: providing a device with a rotor (1) that can be rotated around an axis of rotation and a mechanism (2) allocated to the rotor (1) for actively balancing, in which a magnetic fluid (7) is received in a fluid chamber (6) formed on the rotor (1), which partially fills the fluid chamber (6) and contains at least one of the following fluids: ferrofluid and magnetorheological fluid; holding the magnetic fluid (7) by means of a permanent magnetic field of a permanent magnet (5) arranged on the rotor (1) in an initial position in the fluid chamber (6); rotating the rotor (1) around the axis of rotation (3), and passing the fluid chamber (6) and permanent magnet (5) by an electrical exciter system with a fixedly arranged electromagnet (8) during the rotation of the rotor (1), wherein the permanent magnetic field of the permanent magnet (5) and an electromagnetic field of the electromagnet (8) here overlap in an activated state for active balancing purposes, so that the magnetic fluid (7) in the fluid chamber (6) performs a mass displacement proceeding from the initial position. Also created is a device with a rotor (1) and a mechanism (2) allocated to the rotor (1) for actively balancing the rotor (1).

Disclosed is a rotary disc balancing simulation mass for balancing a rotary disc configured to support a set of rotary components, wherein the rotary disc balancing simulation mass is configured to be attached to the rotary disc and configured to simulate the mass of two or more of the rotary components. Also disclosed are balancing simulation apparatus, and methods of balancing a rotary disc.

The invention relates to a module for a turbomachine comprising a shaft in an axial direction and an electric machine (110) comprising: - a rotor (120) coupled in rotation with the shaft and comprising a disk (122) and magnetic elements (124) arranged regularly around the periphery of the disk, and - a stator (130) integral with a housing of the module comprising a ring (132) and coils distributed annularly inside the ring of the stator, the coils are arranged outside the magnetic elements of the rotor in a radial direction, wherein the rotor has an imbalance defect represented by a mechanical force (F1) when the magnetic elements are in a first position, and at least one magnetic element (124) is movable from the first position to a second position adapted to apply to the rotor a magnetic force (F2) opposite to the mechanical force when the electric machine is in operation.Figure for the abbreviation: Figure 2.

A non-marking, adhesive wheel balancing weight, characterized in that: it comprises an upper balancing weight body (2) and a lower adhesive component (1) which is a non-marking foam adhesive tape, for the adhesive component (1) a first adhesive film layer (1.1), a foam layer (1.2), a second adhesive film layer (1.3), a mixed intermediate layer (1.4), a third adhesive film layer (1.5) and an insulating film layer (1.6) are provided in sequence from the direction of the balancing weight body (2); that the mixed intermediate layer (1.4) is made of 21% PET materials and 79% foam materials.

The invention relates to a vibration absorber (1, 1') for resonance vibrations of rotating bodies, in particular rail wheels, having a plurality of vibratory tongue plates (4, 4') which are separated from one another by intermediate layers (5, 5') of damping material, are rigidly connected to the rotating body at at least one point and are coupled to the rotating body over a large area in the remaining region, wherein the individual tongue plates (4, 4') and the individual intermediate layers (5, 5') of damping material are coordinated with one another in such a way that the tongue plates (4, 4') vibrate at the resonance frequency, to be damped, of the rotating body and the individual tongue plates (4, 4') vibrate such that they compress and relax the damping material of the intermediate layers (5, 5'). In order to enable the vibration properties and damping properties to be set flexibly while ensuring simple manufacturing and reliable attachment of the damping elements, it is proposed that at least one of the tongue plates (4, 4') has a through opening (9, 9') through which the two adjacent intermediate layers (5, 5') of damping material are connected to one another to form a single-piece damping element.

This disclosure relates to the geometry of a balance ring. A ring-shaped component assembly for mounting to a shaft of an aircraft engine is provided. The assembly includes a first annular body having a surface defining a plurality of pull features extending from the remainder of the surface and circumferentially spaced apart. The assembly includes a second annular body defining a balance ring concentric with the first annular body, the balance ring having a plurality of protrusions and circumferential spaces between adjacent protrusions, the circumferential spaces accommodating the pull features such that the pull features of the first annular body are clamped to the protrusions.

To provide an improved system and method for balancing a rotor.SOLUTION: A rotor (102) for use in a centrifuge, comprising: a rotor body (210) including an axis of rotation; and a plurality of balancing apertures (432) arranged circumferentially about the axis of rotation, the balancing apertures (432) being configured to selectively receive weights (433), wherein the balancing apertures (432) are comprised in a lid (212). 432.SELECTED DRAWING: Figure 5

The invention relates to the technical field of inertia rings, and discloses a high-precision inertia ring and a circumferential mass compensation forming process thereof.The high-precision inertia ring comprises a plurality of arc-shaped cylinders, the multiple arc-shaped cylinders are sequentially connected end to end to form the inertia ring of a closed annular structure, every two adjacent arc-shaped cylinders are fixedly connected through a welding seam at the splicing position, and a containing groove is formed in the splicing position; the containing groove is filled with a balance weight piece, and the balance weight piece is used for correcting the uniformity of mass distribution in the circumferential direction of the inertia ring. According to the high-precision inertia ring and the circumferential mass compensation forming process thereof, the accommodating groove at the splicing part is filled with the counterweight piece capable of compensating the mass deviation, so that the circumferential mass of the inertia ring is accurately adjusted; the technical problem of uneven circumferential mass distribution caused by factors such as welding process fluctuation, uneven solder filling and operation difference of an existing inertia ring formed through stamping and welding is solved from the structural level, and the dynamic balance precision and the operation stability of the inertia ring during high-speed rotation are remarkably improved.

A self-balancing device (34) for a turbomachine rotor comprises a balancing weight (40); an electromechanical actuator (42) configured to move the balancing weight (40) along a predetermined path when the actuator is supplied with electrical current; a suspended weight (44); and power supply means (46) configured to supply the actuator (42) with electrical current generated by converting mechanical energy from the vibrations of the suspended weight (44). Such a device allows the rotor to be balanced autonomously, without requiring an external electrical power supply for controlling or powering the device. (See Figure 3 for abbreviations.)

The utility model belongs to the technical field of engines, and particularly discloses an engine transmission component integrating timing, balance weight and cooling functions, an engine and a motorcycle, the engine transmission component integrating timing, balance weight and cooling functions comprises a balance shaft, a first gear and a second gear are arranged on the balance shaft, and the first gear and the second gear are arranged on the balance shaft. The first gear is externally connected with rotating power, and the second gear is connected with a cam shaft of an engine; the balancing weight is arranged on the first gear; the cooling structure is arranged on the balance shaft and located on the side, away from the second gear, of the first gear. After the first gear is connected with rotating power, the balance shaft is driven to rotate, the balance shaft synchronously drives the water pump impeller and the second gear to rotate, the functions of weight balancing, timing and cooling are integrated, and compared with the prior art, the space is smaller, the cost is lower, the assembly efficiency is higher, the weight is reduced, light weight is achieved, and consistency is improved.

A counterweight composition with outstanding chemical resistance and a counterweight comprising this composition, containing polar rubber, an activator, and metal particles in predetermined amounts. The counterweight incorporating this composition exhibits outstanding chemical resistance due to the inclusion of polar rubber, is able to prevent heavy metal pollution and suppress rust formation, displays excellent adhesion to the curved surface of a wheel as well as high extrudability and flexural strength, and is able to inhibit interfacial delamination and lifting phenomena.

A balancing weight composition with excellent chemical resistance and a balancing weight including the same, in which polar rubber, an activator, and metal particles are contained in predetermined amounts. The balancing weight using the balancing weight composition has excellent chemical resistance by including polar rubber, is capable of preventing environmental pollution due to heavy metals and suppressing rust generation, has excellent adhesion to the curved surface of a wheel and high extrudability and bending resistance, and is capable of inhibiting interfacial peeling and lifting phenomena.

To provide a balancing device for a rotor.SOLUTION: A rotor 10 defines a rotation axis 10a. A balancing device 1 comprises a fixed portion 2 and a movable portion 3 for defining a central axis 3a. The movable portion 3 is constrained to the rotor 10 so that the central axis 3a substantially coincides with the rotation axis 10a and includes at least one eccentric mass 30 rotatable around the central axis 3a and not balanced with respect to the central axis 3a. The balancing device 1 further comprises movement means 4 for the eccentric mass 30. The movement means 4 includes a magnetic brake 40 and is suitable for rotating the eccentric mass 30 with respect to the rotor 10 around the central axis 3a.SELECTED DRAWING: Figure 1

A washing machine including a cabinet; a tub arrangeable inside the cabinet; a drum rotatable inside the tub; a motor configured to generate power to rotate the drum; a ball balancer arrangeable in the drum; a damper to support the tub and configured to have a damping force that is changeable; and at least one processor that controls the rotation speed of the motor and the damper force of the damper. As the drum is rotated by the motor according to the rotation speed of the motor controlled by the at least one processor, the at least one processor performs balancing of the ball balancer by controlling the damper force of the damper such that the damper has a smaller damper force in a last resonance section than that in a previous resonance section from among the plurality of resonance sections.

The utility model belongs to the technical field of balance weight wheels, and discloses an adjustable balance weight wheel bidirectional guide block structure which comprises a balance weight wheel, a shaft rod and a guide assembly, a center hole is formed in the center of the balance weight wheel, the shaft rod penetrates through the center hole, locking assemblies are arranged on the front side and the rear side of the balance weight wheel, the locking assemblies are movably connected with the shaft rod, and the shaft rod penetrates through the guide assembly. Through the structures such as the guide blocks and the balls, the balance weight wheel can stably move along the shaft rod, abrasion between the balance weight wheel and the shaft rod is reduced, the influence on the stability of the balance weight wheel is avoided, the balance weight wheel is fixed to the shaft rod through the double positioning and locking structures, the balance weight wheel is prevented from deviating and shaking relative to the shaft rod, and the service life of the balance weight wheel is prolonged. And the stability of the counterweight wheel during movement can be improved, lubricating oil can be stored and conveyed to the concave hole, so that structures such as the ball and the guide block can be lubricated, the friction between the counterweight wheel and the shaft rod is reduced, and the abrasion is further reduced.

A wheel balance weight composition includes an elastomer in an amount of 100 parts by weight, metal oxide in an amount equal to or greater than 1 part by weight and equal to or smaller than 10.5 parts by weight, fatty acid in an amount equal to or greater than 0.5 parts by weight and equal to or smaller than 5.5 parts by weight, and stainless steel (SUS) powder in an amount equal to or greater than 380 parts by weight and equal to or smaller than 1,480 parts by weight.

A rotor module (70) comprises: a blade cluster (73) of a plurality of blades (72) secured to a rotor disk (74) of the rotor module (70); and counter weights (76) secured to the rotor disk (74). The counter weights (76) cause a center of gravity of the plurality of blades (72) to be zeroed out with respect to an axis (O) of the rotor disk (74). The counter weights (76) cause a moment of inertia (Jx) about an X axis of the rotor disk (74) to be equal to a moment of inertia (Jy) about a Y axis of the rotor disk (74) when the rotor module (70) is rotated about the axis (O). A method for zeroing out a center of gravity of a plurality of blades (72) with respect to an axis (O) of a rotor disk (74) the plurality of blades (72) are secured to is also provided.

A material comprising a thermoplastic polyurethane polyester elastomer and a metal particulate matter having an interface modifier coating. The composite material can be extruded and it is ascertained that the production will proceed smoothly. The composite material may be made into a variety of cross-sectional shapes. One embodiment is a flexible bonded wheel counterbalance that can be used to rotationally balance a vehicle wheel.

A valve arrangement (100) of a vibration damper (200) is provided, the valve arrangement (100) comprising a tube (201) with an interior space (202) for receiving the valve arrangement (100), the valve arrangement (100) having a main piston (6) fixed to a piston rod (1) and dividing the interior space (202) of the tube (201) into a compression chamber (39) and a rebound chamber (40), and the valve arrangement (100) comprising a first pressure control unit (16) for the rebound stage for changing the pressure in a pilot chamber (38) for the rebound stage and a second pressure control unit (15) for the compression stage for changing the pressure in a pilot chamber (39) for the compression stage, the pressure control units (15, 16) each being configured for a flow of damping fluid and the respective pressure control unit (15, 16) for influencing the pressure drop in the respective pilot chamber (38,39) is arranged and the valve arrangement (100) has a disk-shaped body (12) which has at least one flow channel (43, 44) for the damping fluid, characterized in that the first (16) and second (15) pressure control unit is arranged for independent change of rebound damping and compression damping of the vibration damper (200) by separately influencing the pressure drop in the respective pilot chamber by means of a respective valve disk (26) and the first (16) and second (15) pressure control unit is arranged for arrangement within the interior (202) of the tube (201) of the vibration damper (200).

The purpose of the present invention is to: (1) provide a composition for balance weights which includes a moisture-curable adhesive that is solid at ordinary temperature and a balance weight obtained from the composition; and / or (2) provide a composition for balance weights and a balance weight obtained from the composition, wherein the production and application of the composition for balance weights are easy to automate, the composition has a high solidification rate and is excellent in terms of rapid curing and rapid bonding, the composition, even when a balance measurement is made immediately after application thereof, can be inhibited from suffering sagging or positional shifting to make the next step possible, and the composition has excellent workability. This composition for balance weights: comprises (A) a moisture-curable adhesive which is solid at ordinary temperature and (B) a tungsten-based powder; is solid at ordinary temperature; and has a specific gravity less than 8.5.

The invention provides a balancing weight for a wind power blade and a balancing method, the balancing weight is composed of quartz sand particles and epoxy resin, the quartz sand particles and the epoxy resin are evenly mixed according to the needed proportion, the mixture is poured into a mold for preparing the balancing weight, and the needed balancing weight is obtained after heating curing forming; one side of the balancing weight is attached to the blade shell, the other side of the balancing weight is laid with the biaxial fabric in a shape-following mode, and the outer side edge of the biaxial fabric is connected with the blade shell. The balancing weight is used for achieving the attaching tightness between the balancing weight and the blade shell; according to the balancing weight for the wind power blade and the weight balancing method, through the arrangement of the balancing weight, the structure and the material of the balancing weight can be effectively optimized, the layering phenomenon of the balancing weight and the possibility that the balancing weight is damaged by lightning stroke are avoided, and the use safety and stability of the balancing weight are improved; through the arrangement of the method, the manufacturing method of the balancing weight can be simplified, and the labor cost is reduced.

One aspect of the invention relates to a mobile ring (120) for a turbomachine, comprising an upstream flange (200), a downstream flange (180) and a radial fastening flange (170), wherein: - the upstream flange (200) and downstream flange (180) each extend along a longitudinal axis (XX'); - the upstream flange (200) and downstream flange (180) are each extended by a radial arm, respectively an upstream radial arm (240) and a downstream radial arm (230) which extend towards the outside of the mobile ring (120), perpendicularly to the longitudinal axis (XX'); - the radial fastening flange (170) extends towards the inside of the mobile ring (120), perpendicularly to the longitudinal axis (XX'); and characterized in that the radial flange (170) has an edge face (300) equipped with at least one weight (400).

This invention discloses a rotary compressor and a refrigeration device. The rotary compressor includes a crankshaft and a rotor assembly. The crankshaft has a first eccentric portion to an Nth eccentric portion arranged sequentially at intervals along the axial direction of the crankshaft, where N is an odd number greater than or equal to 3. The mass of the first eccentric portion is less than the mass of the Nth eccentric portion. The rotor assembly includes a rotor body, a first balance block, and a second balance block. Both the first and second balance blocks are symmetrically arranged about a reference plane passing through the axis of the crankshaft, and the centers of mass of both the first and second balance blocks are located on the reference plane. On the cross-section of the crankshaft, the orthographic projection of the axis of the crankshaft is O, the orthographic projection of the center of mass of the second balance block is A, and the orthographic projection of the axis of the (N+1) / 2th eccentric portion is C, where 75°≤∠AOC≤80°. This effectively reduces the unbalanced inertial force of the rotating components and improves the vibration and noise of the rotary compressor.