CN204200968U - A kind of T-shaped worm and gear-cycloid combination dual output large speed ratio retarder - Google Patents

Abstract

The utility model discloses a T-shaped worm gear-cycloid combined double-output speed ratio reducer, which comprises an upper box body, a lower box body, a primary transmission mechanism and secondary transmission mechanisms on both sides of the box body; The mechanism is a worm and worm gear transmission mechanism including a worm, a worm wheel and a central shaft of the worm gear. There is a support bearing between them, and the two ends of the central shaft of the worm wheel are respectively connected to an eccentric sleeve by a key, and the eccentric sleeve is equipped with a bearing; the secondary transmission mechanism is a cycloidal pinwheel transmission mechanism, including a crank arm crank, a cycloidal wheel, The shell, the output shaft, the eccentric sleeve and the bearing mounted on the eccentric sleeve constitute the power input arm crank of the cycloidal pinwheel transmission mechanism; the pin gear shell and the circular box are fixedly connected with the upper and lower boxes by screws. The utility model realizes the two-way output transmission of the reducer through the design of the above-mentioned worm gear-cycloid combined transmission structure.

Description

A T-shaped worm gear-cycloid combination double output reducer with large speed ratio

technical field

The utility model relates to the fields of worm gear reducers and cycloid reducers, and particularly proposes a T-shaped worm gear-cycloid combined double-output reducer with a large speed ratio.

Background technique

Worm gear reducer is a kind of transmission machinery with compact structure, large transmission ratio, and self-locking function under certain conditions. Because of its convenient installation and reasonable structure, it is more and more widely used.

The cycloid reducer has many advantages such as large transmission ratio, high transmission efficiency, high transmission precision, high torsional rigidity and long life, and is widely used in the field of precision mechanical transmission.

The existing worm gear reducer and cycloid reducer mainly realize the transmission technology of single input and single output. In the worm gear reducer, the axis of the worm gear and the axis of the worm are vertically interlaced in space. The input shaft and output shaft of the cycloid reducer are coaxial.

The existing single-input double-output reducer is mainly realized by means of complex gear system transmission, and it is difficult to further improve the transmission ratio, transmission accuracy and transmission efficiency. Not only that, the existing single-input double-output reducer mainly realizes output on the same side, and it is difficult to achieve output on both sides. In addition, the existing coaxial single-input double-output reducer mainly realizes the forward or reverse rotation of the two output shafts at the same speed, and it is difficult to realize the different speed rotation of the two output shafts through the modification of the internal structure of the reducer.

Utility model content

In order to overcome the defects in the prior art, the utility model provides a T-shaped worm gear-cycloid combined double-output reducer with a large speed ratio. The reducer also has the advantages of compact structure, large transmission ratio of worm gear reducer and high transmission precision, high transmission efficiency and high bearing capacity of cycloid reducer.

The utility model is a T-shaped worm gear-cycloid combination double-output high-speed ratio reducer, which includes a middle box. There is a primary transmission mechanism, and the circular boxes on both sides are respectively provided with secondary transmission mechanisms; the primary transmission mechanism is a worm gear transmission mechanism, and the secondary transmission mechanism is a cycloidal pinwheel transmission mechanism; the worm The worm gear transmission mechanism includes a worm, a worm wheel and a central shaft of the worm wheel. The circumferential fixation between the worm wheel and the central shaft of the worm wheel adopts a key connection, and elastic retaining rings are arranged on both sides of the worm wheel to realize the axial direction between the worm wheel and the central shaft of the worm wheel. fixed; the two ends of the central shaft of the worm wheel and the middle box are respectively provided with support bearings, and the two ends of the central shaft of the worm wheel are respectively connected to an eccentric sleeve through a key, and a bearing is installed on the eccentric sleeve; the cycloid The pinwheel transmission mechanism includes the power input arm crank, cycloidal wheel, pintooth housing, pintooth pin, pin shaft, pin shaft sleeve and output shaft, the eccentric sleeve and the bearing mounted on the eccentric sleeve constitute the cycloidal pinwheel transmission mechanism The power input arm crank; the middle box is composed of an upper box and a lower box; the pin tooth housing and the circular box are fixedly connected with the upper box and the lower box by screws.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model can realize the two-way output transmission of the reducer through the above-mentioned worm gear-cycloid combined transmission structure design, and has the advantages of independent design of the output transmission ratio on both sides, large transmission ratio and high transmission precision.

Description of drawings

Fig. 1 is the front sectional view of the utility model reducer;

Fig. 2 is the sectional view shown in A-A section position among Fig. 1;

Fig. 3 is the sectional view shown in B-B cutting position among Fig. 1;

Fig. 4 is a sectional view shown at the cut position C-C in Fig. 1 .

In the figure: 1-worm, 2-worm wheel, 3-cycloid wheel, 4-central shaft, 5-key, 6-circlip, 7-eccentric sleeve, 8-bearing, 9-support bearing, 10-upper box Body, 11-lower box body, 12-screw, 13-circular box body, 14-pin tooth shell.

Detailed ways

The technical scheme of the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a T-shaped worm gear-cycloid combination double output high speed ratio reducer of the present invention includes a middle box body, and both sides of the middle box body are Circular boxes are respectively provided, the middle box is provided with a primary transmission mechanism, and the circular boxes on both sides are respectively provided with a secondary transmission mechanism.

The first-stage transmission mechanism is a worm gear transmission mechanism, and the worm gear transmission mechanism includes a worm 1, a worm wheel 2 and a worm wheel central axis 4, and the worm wheel central axis 4 passes through the center of the worm wheel 2, and between the worm wheel 2 and the worm wheel central axis 4 The circumferential fixation of the worm wheel is connected by a key 5, and a circlip 6 is provided on both sides of the worm wheel 2 to realize the axial fixation between the worm wheel 2 and the worm wheel center shaft 4; the two ends of the worm wheel center shaft 4 are connected with the middle box Support bearings 9 are respectively arranged between the bodies, and the two ends of the central shaft of the worm wheel 4 are respectively connected with an eccentric sleeve 7 through a key 5, and a bearing 8 is installed on the eccentric sleeve 7.

The secondary transmission mechanism is a cycloidal pinwheel transmission mechanism; the cycloidal pinwheel transmission mechanism includes a power input arm crank, a cycloidal wheel 3, a pin gear housing 14, pin gear pins, pin shafts, pin shaft sleeves and The output shaft, the eccentric sleeve 7 and the bearing 8 mounted on the eccentric sleeve 7 constitute the power input arm crank of the cycloidal pinwheel drive mechanism.

The middle box is composed of an upper box 10 and a lower box 11; the pin-tooth housing 14 and the circular box 13 are fixedly connected with the upper box 10 and the lower box 11 by screws 12, and such a structural design is both The fixing of the upper box body 10 and the lower box body 11 of the reducer is realized, and the purpose of connecting the two-stage transmission systems of the worm gear transmission and the cycloidal pinwheel transmission is achieved.

The reducer of the utility model can realize bidirectional output transmission of the reducer through the combined design of the worm gear-cycloidal combined transmission structure, and has the advantages of independent design of the output transmission ratio on both sides, large transmission ratio and high transmission precision.

Although the utility model has been described above in conjunction with the accompanying drawings, the utility model is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative, rather than restrictive. Under the enlightenment of the utility model, many deformations can be made without departing from the purpose of the utility model, and these all belong to the protection of the utility model.

Claims (1)

1. A T-type worm gear-cycloid combination double output high speed ratio speed reducer, comprising an intermediate casing, both sides of the intermediate casing are respectively provided with a circular casing (13), and the intermediate casing A primary transmission mechanism is provided inside, and a secondary transmission mechanism is respectively provided in the circular boxes (13) on both sides; it is characterized in that, The primary transmission mechanism is a worm gear transmission mechanism, and the secondary transmission mechanism is a cycloidal pinwheel transmission mechanism; The worm and worm gear transmission mechanism comprises a worm (1), a worm wheel (2) and a worm wheel center shaft (4), and the circumferential fixing between the worm wheel (2) and the worm wheel center shaft (4) is connected by a key (5), and the Circlips (6) are provided on both sides of the worm wheel (2) to achieve axial fixation between the worm wheel (2) and the worm wheel central shaft (4); the two ends of the worm wheel central shaft (4) and the middle box Supporting bearings (9) are provided between them, and the two ends of the central shaft of the worm wheel (4) are respectively connected to an eccentric sleeve (7) through a key (5), and a bearing (8) is installed on the eccentric sleeve (7); The cycloidal pinwheel transmission mechanism includes power input arm crank, cycloidal wheel (3), pintooth housing (14), pintooth pin, pin shaft, pin shaft sleeve and output shaft, eccentric sleeve (7) and The bearing (8) on the eccentric sleeve constitutes the power input arm crank of the cycloidal pinwheel drive mechanism; The middle box is composed of an upper box (10) and a lower box (11); the pin tooth housing (14) and the circular box (13) are connected with the upper box (10) and the circular box (13) by screws (12). Lower casing (11) is fixedly connected.