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1159 results about "Balancing machine" patented technology

A balancing machine is a measuring tool used for balancing rotating machine parts such as rotors for electric motors, fans, turbines, disc brakes, disc drives, propellers and pumps. The machine usually consists of two rigid pedestals, with suspension and bearings on top supporting a mounting platform. The unit under test is bolted to the platform and is rotated either with a belt-, air-, or end-drive. As the part is rotated, the vibration in the suspension is detected with sensors and that information is used to determine the amount of unbalance in the part. Along with phase information, the machine can determine how much and where to add or remove weights to balance the part.

One-wheel robot system and control method thereof

The invention relates to a single-wheel robot system and a control method thereof, belonging to the field of intelligent robot, in particular to a static unbalanced robot which can autonomically control movement balance further to autonomically ride a monocycle and a movement balance control method thereof. The single-wheel robot comprises a robot body and a balance detection and control system and is characterized in that the lower part of the robot body is provided with a single wheel which can rotate front and back, and the middle of the robot is provided with an inertial flywheel which can rotate left and right and is horizontally placed; the balance detection and control system comprises a movement controller, a posture detector and a servo drive controller, wherein the posture detector and the servo drive controller are connected with the movement controller; and the movement controller 10 receives a signal of a posture sensor and processes the received signal according to a control procedure so as to send a control order to control a motor through the servo drive controller to regulate the posture balance of the single-wheel robot. The invention provides a control platform which not only belongs to robotics but also belongs to the field of control science and intelligent control, thereby meeting the needs of multi-subject scientific research and teaching.
Owner:BEIJING UNIV OF TECH

Automatic hot-pressing assembly device of balancing shaft and helical gear

The invention discloses an automatic hot-pressing assembly device of a balancing shaft and a helical gear, comprising a dynamic balancing machine (2), a gear hot-pressing machine (3), a manipulator (4) and a feeding and blanking station (5), wherein the manipulator (4) clamps a balancing shaft to be assembled and a helical gear to be assembled on the feeding and blanking station (5) and respectively sends the balancing shaft to be assembled and the helical gear to be assembled to the dynamic balancing machine (2) and the gear hot-pressing machine (3), the dynamic balancing machine (2) measures the dynamic unbalance quantity of the balancing shaft and carries out direction alignment on the balancing shaft, the helical gear is heated in the gear hot-pressing machine (3), and the balancing shaft subjected to dynamic unbalance measurement and direction alignment is sent into the gear hot-pressing machine (3) through the manipulator (4) and is in hot-pressing assembly with the heated helical gear. The device has sufficient static, dynamic and heat stable rigidity and accuracy; the whole system has good dynamic performance; and an execution element which is selected for a detection measurement and display system has the advantages of high accuracy, good reliability, strong anti-interference ability, high response speed and stable continuous processing performance.
Owner:HUAZHONG UNIV OF SCI & TECH

Numerical display type radial drilling machine

The invention provides a numerical display type radial drilling machine, comprising a spindle speed regulating and spindle feeding speed regulating system, a spindle feeding mechanism, a spindle and balance mechanism, a spindle positive / negative rotation and variable-speed control mechanism, a rocker arm and clamping mechanism, an upright and rocker arm lifting mechanism, a hydraulic and cooling system, a testing system, a numerical display control system and the like; the upright and rocker arm lifting mechanism is mounted on a base; the rocker arm and clamping mechanism is mounted on the upright and rocker arm lifting mechanism; the numerical display control system is mounted on the upright and rocker arm lifting mechanism; the spindle speed regulating and spindle feeding speed regulating system is mounted on the rocker arm and clamping mechanism; the spindle feeding mechanism, the spindle and balance mechanism, the spindle positive / negative rotation and variable-speed control mechanism, and the hydraulic and cooling system are mounted on the spindle speed regulating and spindle feeding speed regulating system. According to the numerical display type radial drilling machine, stepless speed changing of a spindle can be realized without shutdown; graphic and numerical display can be realized at working positions; a die wall clamping device of a guide rail and a spindle limiting structure are sensitive and reliable; in short, the numerical display type radial drilling machine is applicable to machining industries.
Owner:SHENYANG JINGHONG NUMERICAL CONTROL EQUIP CO LTD

Mechanical coupling type magnetic suspension wind turbine generator yaw system

ActiveCN103883469AAchieving Radial OffsetReduce Yaw Power ConsumptionWind motor controlMachines/enginesNacelleYaw system
The invention discloses a mechanical coupling type magnetic suspension wind turbine generator yaw system which is applied to a large and medium wind turbine generator. The mechanical coupling type magnetic suspension wind turbine generator yaw system comprises a planet gear, a conical gear, an electromagnetic clutch, vertical suspension windings, horizontal suspension windings and yaw motors. Wind turbine generator yaw mechanical torque and yaw motor torque are coupled through planet gear torque to drive a wind turbine generator cabin to be yawed. The wind turbine generator yaw mechanical torque is taken from electric generator front side wind turbine generator torque through the electromagnetic clutch and the conical gear with the fixed transformation ratio. The yaw motor torque is controlled by a bidirectional PWM converter during cabin suspension, cabin suspension is jointly controlled by the horizontal suspension windings and the vertical suspension windings, the cabin gravity is balanced through the horizontal suspension windings, the vertical suspension windings restrain off-centering, the yaw motors can work in the two modes including the electric mode and the regenerative braking mode through changes of the wind turbine generator yaw torque, and bidirectional energy flowing is completed through the PWM converter. According to the mechanical coupling type magnetic suspension wind turbine generator yaw system, the yaw power energy conversion link is omitted, the yaw power consumption is greatly reduced, and the wind energy use rate is improved.
Owner:QUFU NORMAL UNIV +1

Single-wheel self-balancing robot system

ActiveCN102445944AMeet the needs of multidisciplinary scientific research teachingUnique shapePosition/course control in two dimensionsDrive motorMotion controller
The invention relates to a single-wheel self-balancing robot system belonging to the category of intelligent robots, in particular to a static unbalanced robot which is capable of autonomously controlling motion balance and then autonomously riding a wheelbarrow. The single-wheel self-balancing robot system provided by the invention comprises a mechanical body and an electrical control system and is characterized in that: a vertically-arranged flywheel capable of rotating from side to side is contained in the upper part of the body and used for realizing the horizontal balance controlling of the robot; a rotatable horizontally-arranged flywheel is contained in the middle of the body and used for realizing the turning of the robot; a single wheel capable of rotating forward and backward is contained in the lower part of the body and used for realizing the forward and backward balance walking of the robot; and the electrical control system is composed of a drive motor, a motion controller and an attitude sensor and a servo drive controller which are connected with the electrical control system. The system provided by the invention provides a control platform, relates to the fields of control technology and intelligent control besides robotics and is capable of satisfying the requirements of multidisciplinary research and teaching.
Owner:河北环宇电力通信工程有限公司

Unbalance magnitude online monitoring and de-weighting method in disc type workpiece processing

ActiveCN105222959APrevent large imbalancesUnbalance reduction or eliminationStatic/dynamic balance measurementMeasurement/indication equipmentsBalancing machineDynamic balance
The invention relates to an unbalance magnitude online monitoring and de-weighting method in disc type workpiece processing, and brings forward a method for indirectly measuring unbalance magnitude of a disc type workpiece in processing through monitoring change of unbalance vibration signals of a main shaft, for overcoming the disadvantages in the prior art that dynamic balancing of a conventional disc type workpiece requires a special-purpose dynamic balancing machine, the balancing efficiency and the precision are low and the like. Based on the method brought forward by the invention, through monitoring of the unbalance state of the disc type workpiece in a processing process, formation and deterioration of too large unbalance magnitude of the disc type workpiece are prevented; and after the disc type workpice is processed, the clamping position of the disc type workpiece on a main shaft of a machine tool maintains unchanged, the unbalance magnitude of the disc type workpiece is measured in an online mode during rotation of the main shaft, and the unbalance magnitude of the disc type workpiece is reduced or eliminated through a method of controlling de-weighing of the machine tool. The method provided by the invention has great significance in improving the balance efficiency and precision of the disc type workpiece and reducing the balance cost.
Owner:TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE

Dynamic balance assembly testing device of engine rotors

The invention relates to a dynamic balance assembly testing device of engine rotors, which comprises a front balance process casing, a balance mandrel, a rear balance process casing, a balancer, a pulling rod, an ejection rod, a baffle plate, a support block and an upright column, wherein in the balance state, the front balance process casing is connected with the front part of a stator outside an engine rotor, the rear balance process casing is connected with the rear part of a stator outside an engine rotor, the front balance process casing and the rear balance process casing are respectively arranged at the front end and the rear end of the balance mandrel and are arranged on the balancer through the balance mandrel; and in the assembly state, engine rotors of the front balance process casing and the rear balance process casing are arranged on an assembly vehicle, the support block is positioned between an engine stator casing and the assembly vehicle, and the upright column is arranged between the engine rotors and the assembly vehicle. The dynamic balance assembly testing device of the engine rotors, which is provided with the stators, solves the dynamic balance assembly problem of a special structure, realizes multifunctional assembly and transportation and has higher economic and practical values.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION

Large-scale rotary load high-precision dynamic balance measuring device for spacecraft

The invention relates to a large-scale rotary load high-precision dynamic balance measuring device for an spacecraft, which comprises an air main shaft system, a driving system, a measuring system and a data processing and displaying system. The large-scale rotary load high-precision dynamic balance measuring device for the spacecraft is characterized in that the dynamic balance measuring device comprises two measuring modes; in one mode, a tested object is driven by a driving system contained in a dynamic balancing machine; in the other mode, the tested object is driven by a self driving device; and both modes have even and static balance measuring and balancing functions. Furthermore, a support system adopts a high-rigidity and superlow-friction air bearing system; an air main shaft comprises a plurality of air components and adopts a gaseous static pressure mode to separate inner and outer air sleeves as well as upper and lower air plates; the inner and the outer air sleeves provide radial restraint and accurately transmit the radial acting force; and the upper and the lower air plates have sufficient rotation rigidity perpendicular to the rotating shaft and can ensure that the unbalanced quantity of an object can be measured by the air main shaft under a small-friction and low-resistance condition. The large-scale rotary load high-precision dynamic balance measuring device provided by the invention is applicable to the large-scale rotary load high-precision low-velocity dynamic balance measurement of the spacecraft.
Owner:SHANGHAI SATELLITE ENG INST

Measuring method and device for locked rotor torque of turbine rotor blade

The invention discloses a static torque measuring method and a measuring device of a steam turbine rotor blade. The method takes the root and the tip of a twisted blade as two supporting points, weighs the bearing capability of the two supporting points with a high-precision electronic scale, integrates with the distance between the two supporting points, and calculates the torque of the blade with a formula. The measuring device essentially includes a frame, a fixed bracket, a blade root electronic scale, a blade root support post, a blade tip support post, a blade tip electronic scale and a mobile bracket; the blade root electronic scale is arranged on the fixed bracket; the blade root electronic scale is provided with the blade root support post; a front and a rear datum planes are arranged before the blade root support post, and a left and a right datum planes are arranged on the side of the blade root support post. The invention has the advantages of high measuring precision, easiness in operation and low cost; in particular the provided measuring device has the advantages of compact design, small size, convenience in operation, blade arrangement before installation, and shortening the test time of the rotor on a high-speed dynamic balancing machine.
Owner:HANGZHOU STEAM TURBINE

Two-station rotator drilling de-weight full-automatic balance machine

The invention disclose a two-station rotator drilling de-weight full-automatic balance machine. The two-station rotator drilling de-weight full-automatic balance machine comprises a machine frame, a balance measuring positioning mechanism, a drilling mechanism, a mechanical rotary ram, a corner mechanism and a compressing and reversing mechanism, wherein the mechanical rotary arm is mounted at the position near the central part of the machine frame; the balance measuring positioning mechanism is arranged below one end part of the mechanical rotary arm; the compressing and reversing mechanism is arranged below the other end of the mechanical rotary arm; the drilling mechanism is mounted on the machine frame; the drilling end of the drilling mechanism corresponds to the compressing position of the compressing and reversing mechanism; the corner mechanism is mounted on the machine frame; the corner mechanism and the drilling mechanism are respectively positioned on the two sides of the compressing and reversing mechanism. The full-automatic balance machine has the advantages that the overall structure is simple; the machining cost is greatly reduced; the size is small; the occupied space is reduced; meanwhile, the machining requirements of a variety of products can be met; the compatibility is high; moreover, due to the mechanical rotary arm and the compressing and reversing mechanism, product machining stations can be switched more quickly, so that the machining efficiency is greatly improved.
Owner:上海剑平动平衡机制造有限公司
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