CN204985601U - Ultrashort type is from aligning harmonic speed reducer ware - Google Patents

Abstract

The utility model relates to the field of harmonic reducers, in particular to an ultra-short self-aligning harmonic reducer, which includes an input shaft, a wave generator, a flexible wheel and a rigid wheel, the input shaft is a hollow structure, and the wave The generator is arranged on the input shaft, and the wave generator is linked with the outer flexspline. The flexspline is a thin-walled cup-shaped structure, and the outer teeth of the flexspline mesh with the inner teeth of the rigid spline. It can effectively ensure the concentricity of the connection between the motor and the harmonic reducer, and use the harmonic principle to reduce the input speed of the motor and increase the output torque at the same time.

Description

An ultra-short self-aligning harmonic reducer

technical field

The utility model relates to the field of harmonic reducers, in particular to an ultra-short self-aligning harmonic reducer.

Background technique

The reducer is a power transmission mechanism that uses the speed converter of the gear to reduce the number of revolutions of the motor to the desired number of revolutions and obtain a larger torque mechanism. There are many types of reducers with different models, and different types have different uses. Among them, the harmonic reducer is a new type of reducer developed by using the principle of planetary gear transmission. It is widely used in electronics, aerospace, robotics and other industries. , in order to increase the output torque and obtain a better load-carrying capacity and transmission ratio, therefore, the inventor conducted further research on this and developed an ultra-short self-aligning harmonic reducer, and this case arose from it.

Utility model content

The purpose of the utility model is to provide an ultra-short self-aligning harmonic reducer, which is more beneficial to use on robots.

In order to achieve the above object, the technical scheme of the utility model is as follows:

An ultra-short self-aligning harmonic reducer, including an input shaft, a wave generator, a flexible spline, and a rigid spline, the input shaft is a hollow structure, the wave generator is arranged on the input shaft, and the wave generator and The outer flexspline is linked, and the flexspline is a thin-walled cup-shaped structure, and the external teeth of the flexspline mesh with the internal teeth of the rigid spline.

Further, one side of the wave generator is provided with a cross pressure block, and the other side is provided with an elastic retaining ring and a pressure plate.

Further, the wave generator is a cross slider structure.

Further, the outer ring of the flexible spline is a wave-shaped structure.

Further, a flexible bearing is arranged between the wave generator and the flexible spline.

After adopting the above scheme, the utility model has the following advantages compared with the prior art:

It has the characteristics of compact structure, small size, light weight, stable transmission, low noise, etc., and the axial and radial dimensions can be more conducive to the use of robots.

Description of drawings

Fig. 1 is the schematic diagram of the utility model;

Label description

Input shaft 1, wave generator 2, flexible spline 3, rigid spline 4, cross pressure block 5, pressure plate 6,

Flexible bearing 7, circlip 8.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

As shown in the figure, an ultra-short self-aligning harmonic reducer disclosed by the utility model includes an input shaft 1, a wave generator 2, a flexible wheel 3, and a rigid wheel 4, and the wave generator 2 is an elliptical cross connection Structure, the cross connection structure can effectively adjust the coaxiality of the connection with the input motor. There is a symmetrical keyway at the input shaft 1, and the wave generator 2 also has two symmetrical keyways, and the two are cross-fitted through the keyway.

Rigid wheel 4 is an integrated structural design of the shell, both as a gear and as a housing. Flexspline 3 is a thin-walled cylindrical structure, and the outer ring is external teeth, which mesh with the inner teeth of the inner ring of rigid wheel 4 .

A flexible bearing 7 is installed on the wave generator 2, the left side of the wave generator 2 is provided with a cross pressure block 5, and the right side is provided with a pressure plate 6 and a retaining ring 8, which are used to limit the axial movement of the flexible bearing 7. The generator 2 and the flexible bearing 7 are integrated into the inner hole of the flexible spline 3 .

The ultra-short structure can effectively control the axial size, which is convenient for customers to install and saves space for customers.

When the present invention works, the power is input through the motor, and the motor shaft is installed on the input shaft 1. Through this self-aligning structure, the concentricity of the connection between the motor and the harmonic reducer can be effectively guaranteed, and the input of the motor can be reduced by using the harmonic principle. speed while increasing the output torque.

The above are only specific embodiments of the present utility model, but the design concept of the present utility model is not limited thereto. Any insubstantial modification of the utility model using this concept should be an act of violating the protection scope of the utility model.

Claims (5)

1. An ultra-short self-aligning harmonic reducer, characterized in that: it includes an input shaft, a wave generator, a flexible spline, and a rigid spline, the input shaft is a hollow structure, and the wave generator is arranged on the input shaft Above, the wave generator is linked with the outer flexspline, the flexspline is a thin-walled cup-shaped structure, and the outer teeth of the flexspline mesh with the inner teeth of the rigid spline. 2. An ultra-short self-aligning harmonic reducer according to claim 1, characterized in that: one side of the wave generator is provided with a cross pressure block, and the other side is provided with an elastic retaining ring and a pressure plate . 3. An ultra-short self-aligning harmonic reducer according to claim 1, characterized in that: the wave generator is a structure of a cross slider. 4. An ultra-short self-aligning harmonic reducer according to claim 1, characterized in that: the outer ring of the flexible spline has a wave-shaped structure. 5. An ultra-short self-aligning harmonic reducer according to claim 1, characterized in that a flexible bearing is arranged between the wave generator and the flexible spline.