CN201869003U

CN201869003U - Novel driving device

Info

Publication number: CN201869003U
Application number: CN2010206235046U
Authority: CN
Inventors: 张聪; 王信军; 邰红飞
Original assignee: CHENGDU HONGTIAN ELECTRIC DRIVE ENGINEERING Co Ltd
Current assignee: SICHUAN HONGHUA ELECTRIC CO., LTD.
Priority date: 2010-11-25
Filing date: 2010-11-25
Publication date: 2011-06-15
Anticipated expiration: 2020-11-25

Abstract

The utility model relates to a novel driving device. The novel driving device comprises a driving motor main body (1), wherein a motor shaft (2) and a load shaft (3) of the driving motor main body (1) are hollow shafts; a part of the load shaft (3) is arranged in the hollow motor shaft (2); a connecting sleeve (4) is closely arranged outside a junction of the motor shaft (2) and the load shaft (3); and one end of the motor shaft (2), to which the connecting sleeve (4) is attached, is provided with a limiting step (5). The novel driving device has the advantages that: mounting accuracy is improved, coaxiality of the load shaft and the motor output shaft is guaranteed and a damaged condition of a machine due to error of the coaxiality is reduced, and the device is convenient to use.

Description

A kind of novel drive unit

Technical field

The utility model relates to a kind of novel drive unit.

Background technology

The mode kind of existing driving load is very many, be connected with motor output shaft by bearing axle, the mode of shaft coupling being installed in the junction then or adapter sleeve being installed between motor rotor rack and rotating shaft realizes the rotation of bearing axle, but aforesaid way takes up room bigger, installation accuracy is poor, the axiality that is difficult to proof load axle and motor output shaft causes the accumulation of error of the axiality of two between centers easily, causes machine breakdown thereby make rotating shaft produce eccentric vibration.

The utility model content

The purpose of this utility model promptly is to overcome the deficiencies in the prior art, a kind of novel drive unit is provided, its compact conformation, can improve the installation accuracy of load end, simultaneously can the proof load axle and the axiality of motor output shaft, and can reduce the machine breakdown degree that the error because of axiality causes.

A kind of novel drive unit comprises the drive motors main body, and the motor shaft of drive motors main body and bearing axle are hollow shaft, and the part of bearing axle is installed in the core motor axle, the outside close installation adapter sleeve of the connection place of motor shaft and bearing axle.

An end of being close to adapter sleeve on the described motor shaft is provided with limited step.

The beneficial effects of the utility model show: compact conformation, reasonable, the motor shaft of the drive motors main body that adopts is a hollow shaft, the part of bearing axle is installed in the core motor axle, realize being connected of motor shaft and bearing axle by adapter sleeve, the installation accuracy height has guaranteed the axiality of bearing axle and motor output shaft simultaneously and has reduced the machine breakdown degree that the error because of axiality causes.

Description of drawings

Fig. 1 is a schematic diagram of the present utility model.

Fig. 2 is a cutaway view of the present utility model.

Fig. 3 is the partial enlarged drawing of regional A among Fig. 2.

1-drive motors main body among the figure, 2-motor shaft, 3-bearing axle, 4-adapter sleeve, 5-limited step, ring in the 6-outer shroud, 7-, 8-hold-down bolt.

Embodiment

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

As shown in Figure 1 and Figure 2, a kind of novel drive unit comprises drive motors main body 1, and the motor shaft 2 of drive motors main body 1 and bearing axle 3 are hollow shaft, the part of bearing axle 3 is installed in the core motor axle 2, the outside close installation adapter sleeve 4 of the connection place of motor shaft 2 and bearing axle 3.

An end of being close to adapter sleeve 4 on the described motor shaft 2 is provided with limited step 5.

As shown in Figure 3, adapter sleeve 4 can be carved the outer shroud 6 that closes with interior ring 7 and be connected outer shroud 6 and the hold-down bolt 8 of interior ring 7 is formed by being installed in interior ring 7 on the motor shaft 2, realizes the fixed form of adapter sleeve 4.

The part of bearing axle 3 is installed in the core motor axle 2, adapter sleeve 4 is installed in bearing axle 3 and motor shaft 2 outsides, inwardly screw hold-down bolt 8, carve mutually and close outer shroud 6 and interior ring 7 and apply a pressure for motor shaft 2, outer shroud 6 and interior ring 7 are subjected to stopping of a lateral confinement position step 5, obtain an inside axial force, motor shaft 2 stressed tightening up, be connected closelyr with bearing axle 3, realize being connected assurance higher installation accuracy and axiality with bearing axle 3 by the utility model, easy to use.

Claims

1. novel drive unit, comprise drive motors main body (1), it is characterized in that: the motor shaft (2) of drive motors main body (1) and bearing axle (3) are hollow shaft, the part of bearing axle (3) is installed in the core motor axle (2), the outside close installation adapter sleeve (4) of the connection place of motor shaft (2) and bearing axle (3).

2. a kind of novel drive unit according to claim 1 is characterized in that: an end of being close to adapter sleeve (4) on the described motor shaft (2) is provided with limited step (5).