Speed measuring device for harmonic gear reducers
A technology of gear reducer and speed measurement, which is applied in the direction of devices using electric/magnetic methods, can solve problems such as errors, inability to install other parts, and inability to apply single-axis loads, etc., to avoid wear, high precision, and precision fast and effective results
Active Publication Date: 2018-04-20
SHANGHAI JIAOTONG UNIV
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Problems solved by technology
However, since the photoelectric code disk has only one input port, the photoelectric code disk must be installed at the end of the rotation axis of the entire system, and other parts cannot be installed afterwards.
Therefore, when in use, it is usually installed on the shaft at the other end of the load, and the speed of the output shaft of the harmonic gear reducer cannot be directly measured, which will cause certain errors
At the same time, it also limits the form of load and cannot be applied to single-axis load situations.
Method used
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[0018] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0019] Such as figure 1 As shown, this embodiment provides a rotational speed measurement device for a harmonic gear reducer, including: a servo motor 1, a harmonic gear reducer 2, an eddy current displacement sensor 3, a boss gear 4, a disc 5, and a bracket 6. Display 7, wherein: servo motor 1, harmonic gear reducer 2, and disk 5 are connected through a coupling, and the shells of servo motor 1 and harmonic gear reducer 2 are fixed on the bracket 6, thereby ensuring that the servo motor 1 and th...
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The invention provides a speed measuring device for a harmonic gear reducer, including: a servo motor, a harmonic gear reducer, an eddy current displacement sensor, a boss gear, a disc, a bracket and a display, wherein: the bracket serves as a servo The carrier of the motor and harmonic gear reducer, the servo motor and the harmonic gear reducer are all fixed on the bracket; the harmonic gear reducer is connected with the servo motor and the disc respectively through couplings; The gear reducer is directly connected and fixed; the output shaft of the harmonic gear reducer is connected with the disc through a coupling; the eddy current displacement sensor is aligned with the outer edge of the boss gear and transmits the signal to the display. The invention effectively avoids the wear of the output shaft of the harmonic gear reducer by the traditional keyway installation method; at the same time, it can realize non-contact measurement with high precision, high speed and effectiveness.
Description
technical field [0001] The invention relates to the field of rotational speed measurement of a harmonic gear reducer with removable loads, in particular to a rotational speed measurement device for a harmonic gear reducer. Background technique [0002] Harmonic gear transmission is a gear transmission device that relies on flexible parts to generate elastic mechanical waves to transmit power and motion. Harmonic gear reducer is a precision transmission device with high precision and large transmission ratio, mainly composed of three basic components: wave generator, flexible gear and rigid gear. The input shaft is connected with the wave generator, and the flexible spline is connected with the output shaft. Harmonic gear transmission mainly relies on the flexible deformation of the flexspline to transmit motion, so the flexspline is the main component. The output shaft is directly connected to the flexspline, so when the output shaft is subjected to various external excita...
Claims
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IPC IPC(8): G01P3/49
Inventor 陆雯李鸿光
Owner SHANGHAI JIAOTONG UNIV