13 results about "Piano tuning" patented technology

The invention provides a special screwdriver for piano tuning and a using method thereof. The screwdriver comprises a grab handle and a grab rod, a containing groove is formed in the grab handle, a mounting part is arranged at one end of the grab handle, the grab rod is detachably connected with the mounting part, and one side of the grab rod is inserted into the containing groove through the mounting part; the two ends of the holding rod are provided with the tool bit connecting rods, and one ends of the two tool bit connecting rods are provided with the linear tool bit and the cross-shaped tool bit respectively. A plurality of anti-skidding protruding blocks are installed on the surface of the cross-shaped tool bit, a plurality of anti-skidding protruding strips are installed on one side of the straight-line-shaped tool bit, and the straight-line-shaped tool bit and the cross-shaped tool bit are both designed to be variable in diameter. According to the screwdriver, the straight screwdriver head and the cross screwdriver head are combined together, the placing space can be saved, the anti-skid protruding strips of the straight screwdriver head or the anti-skid protruding blocks of the cross screwdriver head make contact with the inner wall of a screw hole groove, the friction force between the anti-skid protruding strips and the screw hole groove can be increased, and the screwdriver is prevented from sliding off or slipping in the rotating process; the cross-shaped tool bit and the linear tool bit are subjected to reducing treatment so as to be attached to a piano sound stopper, a linkage device, a rotating machine and the like, and wood parts are protected.

The utility model discloses a piano tuning device, which comprises a shell and a sound pick-up, and can accurately identify the deviation between the current intonation state of the piano and the preset standard intonation by using the sound pick-up to capture sound signals sent by the piano and accurately analyzing the sound signals through a controller. Therefore, a user can control the motor conveniently, it is ensured that each string can reach the ideal vibration frequency, and then the tuning efficiency of the piano is improved. A user can flexibly select a proper adjusting head according to the size and the shape of a piano tuning peg nail, a proper adjusting assembly is easily rotated by sliding a T-shaped sliding block on a shell cover, in addition, the tedious process of traditional manual tuning is simplified through a motor-driven adjusting mode, and the operation difficulty is reduced; and through the design of the anti-falling unit, the phenomena of thread falling and slipping between the adjusting head and the threaded rod on the connecting seat in the adjusting process are effectively avoided, and the stability and the reliability in the adjusting process are ensured.

The invention discloses a piano tuning auxiliary positioning system, belongs to the technical field of musical instrument tuning, and aims to solve the problem of positioning deviation caused by neglecting string tension dynamic evolution and environmental disturbance in the prior art. The system comprises a tuning peg state sensing module, a string tension evolution monitoring module, a central cooperative controller, a man-machine interaction guide module and an audio feedback verification module. Through fusion of triple information of tuning peg angular displacement, tension steady state discrimination and acoustic frequency feedback, staged accurate guidance and dynamic decision are realized. The system rapidly approaches the target in the coarse tuning stage, premature termination is avoided in the fine tuning stage according to the tension steady state, the tuning accuracy is ensured through audio closed-loop verification, and the tuning precision, efficiency and robustness are remarkably improved.

The utility model discloses piano tuning peg plate drilling equipment which comprises a machining area, a workbench, a control cabinet and a robot are arranged on one side of the machining area, the robot is electrically connected with the control cabinet, a drill bit assembly is arranged at the output end of the robot and comprises a drill bit frame, a servo motor and a dust collector dust collecting pipe, and the servo motor is electrically connected with the robot. The drill bit frame is fixedly installed on one side of the robot, the servo motor is fixedly installed in the drill bit frame, the output end of the servo motor is fixedly connected with a drill bit, a tuning peg plate is arranged on one side of the workbench, and the drill bit is used for machining and manufacturing the tuning peg plate. On one hand, the tuning peg plate is drilled through the robot, on the other hand, the industrial dust collector adsorbs dust and tiny fines generated by drilling through the dust collector dust collecting pipe, and the problem that due to the fact that a drill bit makes contact with the tiny fines adsorbed to the tuning peg plate, machining of the tuning peg plate is poor can be solved.

The utility model relates to the technical field of piano tuning equipment, and discloses a mechanical piano tuner which comprises a connecting rod, a telescopic mechanism is arranged on the periphery of the connecting rod, a fine tuning mechanism is arranged in the connecting rod, the left end of the connecting rod is rotatably connected with a sleeve, and the fine tuning mechanism is connected with the sleeve. The interior of the handle is slidably connected to the periphery of the left side of the connecting rod, the periphery of the limiting pipe is slidably connected to the interior of the connecting rod, one side of the adjusting ring is rotatably connected to the right end of the handle, and the interior of the adjusting ring is in threaded connection to the periphery of the left side of the connecting rod. According to the mechanical piano tuner, the handle can move left and right relative to the connecting rod by rotating the adjusting ring, so that the length of the device can be adjusted, the mechanical piano tuner is convenient to carry, the worm drives the worm gear to rotate by rotating the knob, and the speed is reduced through the reduction gear; therefore, the driven gear drives the sleeve to rotate slowly, and accurate adjustment is facilitated.

The utility model discloses a portable piano tuning device, which relates to the technical field of piano tuning and comprises a mounting seat, one end of the mounting seat is fixedly connected with a first fixing seat, the other end of the mounting seat is fixedly connected with a second fixing seat, and the first fixing seat and the second fixing seat are identical in structure. According to the portable piano tuning device, the mounting base, the first fixing base and the second fixing base are arranged, the fixing column can be adjusted to the side face of the mounting base or the fixing column can be adjusted to the end face of the mounting base according to needs, and if the arms of a tuning person are short, the tuning person can adjust the tuning person to the end face of the mounting base. The fixing column can be adjusted on the end face of the mounting base, so that the fixing column faces a tuning person, and the tuning person can sit in front of the piano and drive the first fixing base, the mounting base and the wrench head to rotate by rotating the connecting column, so that the tuning peg is adjusted, and the piano is tuned.

The utility model discloses a novel piano tuning wrench which comprises a handle, a torsion arm and a wrench head, a bent pipe is vertically arranged at the upper end of the handle, the handle is a hollow shell, a fastening nut is rotatably arranged in front of the torsion arm, an inserting column is arranged in front of the torsion arm and located in the fastening nut, a driven bevel gear is arranged behind the torsion arm and extends into the handle, and a wrench opening is formed in front of the wrench head. A connecting pipe is arranged behind the wrench head, a rotary switch with gears is arranged at the lower end of the handle, a long touch switch is arranged on the handle, a controller and a battery are arranged in the handle, the controller is electrically connected with the battery, the rotary switch and the long touch switch through wires, and a driving mechanism is arranged on the upper side in the handle. The utility model has the advantages that the manual mode and the electric mode can be switched for use, the applicability of the utility model is improved, and the efficiency of the tuning work is improved.

The utility model relates to the technical field of piano tuning equipment, and discloses an electric piano tuning device, which comprises a shell, a main shaft and a fixed shaft are respectively and rotatably arranged at two ends of the shell, a speed reducing motor is arranged in the shell, an output end of the speed reducing motor is connected with the main shaft through a gear set, the fixed shaft comprises a first half shaft and a second half shaft, the first half shaft is L-shaped, and the second half shaft is L-shaped. The first end of the first half shaft is rotationally arranged on the shell, and the first end of the second half shaft is arranged at the second end of the first half shaft in a sliding mode. The piano tuning peg adjusting device can replace manual adjustment, can be quickly in butt joint with a piano tuning peg, can rotate forwards or reversely so as to raise or lower pitch, can quickly eliminate idle stroke, and effectively improves the piano tuning effect and efficiency.

The utility model discloses a piano tuner, and belongs to the technical field of piano tuning instruments. The piano tuning wrench mainly comprises a tuning wrench body, the tuning wrench body is provided with a sleeve, and the sleeve is provided with clamping teeth matched with fixing screws of piano strings. The go / no-go gauge is detachably mounted on the tuning wrench, the go / no-go gauge comprises a matching column, and the matching column is mounted on the tuning wrench; the go gauge is arranged at one end of the matching column; the no-go gauge is arranged at the other end of the matching column; the tooth shapes of the go gauge and the no-go gauge are matched with the tooth shapes of the latches, the size of the go gauge is smaller than the size of the latches, and the size of the no-go gauge is larger than the size of the latches. According to the piano tuner, the go-no go gauge which is detachably installed on the tuning wrench is arranged, so that the purpose of detecting the tuning wrench before piano tuning is achieved, and the situation that screws for fixing strings are damaged due to the fact that the interior of the sleeve of the tuning wrench is abraded or burrs are generated is prevented.

The utility model belongs to the field of piano tuning sound stopping tools, and particularly relates to a piano tuning sound stopping tool which comprises a device body, a sound stopping device is arranged on the surface of the device body, the sound stopping device comprises a connecting base, a fixing clamp is fixedly connected to the inner wall of the connecting base, and the fixing clamp is fixedly connected with the device body. The inner wall of the connecting base is rotationally connected with a movable clamp through a coil spring, the surface of the movable clamp is provided with an anti-abrasion inclined face, and the inner wall of the movable clamp is connected with one end of a steel wire rope in a sleeved mode. According to the piano tuning sound stopping tool, at the moment, the device integrally penetrates through a string knocking mallet, a string is located in a gap between a fixed clamp and a movable clamp, a control handle is loosened, a coil spring of the movable clamp is reset to clamp the string, the control handle is pulled to rotate through a steel wire rope, and therefore when sound stopping clamping is conducted on the string, the string can be clamped in a clamped mode; the sound stopping device does not need to extrude the strings into the sound stopping clamp to be clamped like a common sound stopping clamp, so that the extrusion and abrasion of the sound stopping device to the strings can be greatly reduced.

The invention discloses a high-precision piano rhythm dividing method based on pure pitch group inspection, which comprises the following steps: S1, based on different natural pitches, selecting a pure pitch group and an actual slow frequency pitch related to a pitch to be inspected, the pure pitch group being composed of known sounds and target sounds, and the actual slow frequency pitch being composed of the known sounds and the target sounds; calculating the frequency of the target tone in the pure tone group through a target tone frequency calculation formula f01 = f02 / n; s2, based on different natural ranges, substituting the frequency of the target tone obtained in the step S1 into a natural range beat frequency calculation formula f = (f03 * a)-(f04 * b) to calculate the beat frequency of a theoretical slow frequency range; when f03 represents the frequency of the target sound, f04 is the frequency of the sound to be tested; a represents a numerator in the natural pitch frequency ratio, and b represents a denominator in the natural pitch frequency ratio; and S3, comparing the beat frequency of the theoretical slow frequency interval calculated in the step S2 with the actual slow frequency interval in the step S1, and verifying the accuracy of the to-be-verified sound by taking the theoretical slow frequency interval and the sum sound interval of the to-be-verified sound as comparison data.

An assembly for damping the string sets of a piano, comprising a mounting assembly for mounting to a keybed (1, fig. 1), a mounting housing 6 rotatably mounted on the mounting assembly, and a damping

This invention discloses an intelligent automatic piano tuning system and method based on an edge-cloud collaborative architecture, belonging to the field of automatic musical instrument tuning technology. It includes: a mobile terminal for acquiring string audio, extracting the fundamental frequency, and generating tuning commands; a cloud server, communicatively connected to the mobile terminal, for generating a personalized target frequency table based on the acoustic characteristics of the strings using a global optimization algorithm; and a physical execution terminal, communicatively connected to the mobile terminal, including a microcontroller and a motor drive unit, for receiving the tuning commands and driving the motor to adjust the tuning pins in a closed-loop manner. This invention achieves low-cost, high-precision, and fully automatic piano tuning, can generate extended tuning curves comparable to those in concert halls, and has multiple safety protections, making it suitable for daily pitch maintenance in homes, music stores, and music schools.