CN212167634U

CN212167634U - Device for limiting axial movement of motor shaft

Info

Publication number: CN212167634U
Application number: CN201922502365.5U
Authority: CN
Inventors: 马健; 何志民; 陆波; 丁英明
Original assignee: Anhui Liuguo Chemical Industry Co Ltd
Current assignee: Anhui Liuguo Chemical Industry Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-12-18
Anticipated expiration: 2029-12-31

Abstract

The utility model belongs to the technical field of the ball mill, especially, device of restriction motor shaft axial float. The utility model discloses a motor and motor shaft, the cover is equipped with the stop gear who is used for restricting motor shaft axial displacement on the motor shaft, and stop gear is fixed in on the basis. The utility model discloses an installation plane bearing utilizes plane bearing's play clearance little control electric motor rotor's play volume to solve because the motor shaft axial float makes the problem that produces the sharp temperature rise of friction and lead to the axle bush between axle bush and the motor shaft, guarantee equipment safety in production reduces the later maintenance cost of equipment.

Description

Device for limiting axial movement of motor shaft

Technical Field

The utility model belongs to the ball mill field especially relates to a device of restriction motor shaft axial float.

Background

At present, many large-scale equipment are in the use, the equipment centering problem that brings takes place slight deformation because of the basis, influence equipment use, overflow type ball mill is as the crushing apparatus that many mines, chemical industry class enterprise used, equipment operation stability is concerned with system production stability, wherein contain the axle bush motor after operation a period, the axle bush just has the attenuate phenomenon, bring equipment centering problem in a word, thereby can produce axial float during the operation, cause the axle bush temperature to rise sharply, many producers adopt to install locking device between motor rotor axle and extension axle and solve the motor float problem, the installation is extremely difficult, to having better effect to the end float problem of non-load, but to the problem effect of the end float of load not obvious.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a device for limiting axial movement of a motor shaft. The utility model discloses through at the epaxial installation plane bearing of electric motor rotor, the problem of axle bush temperature rise is solved to the restriction motor shaft displacement, improve equipment operating stability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a device of restriction motor shaft axial float, includes motor and motor shaft, and the cover is equipped with the stop gear who is used for restricting motor shaft axial displacement on the motor shaft, and stop gear is fixed in on the basis.

Preferably, the limiting mechanism is a plane bearing, and the plane bearing is fixed on the foundation through a bearing seat.

Preferably, be equipped with the axle bush that is used for bearing motor shaft on the basis, the axle bush passes through the axle bush seat to be fixed in on the basis.

Preferably, the bearing bushes are symmetrically distributed on two sides of the motor, and motor shafts extending out of two ends of the motor are sleeved on inner rings of the bearing bushes.

Preferably, the motor shaft is in transmission connection with a gear mechanism of the ball mill through a connecting device, the connecting device comprises a hub and a pneumatic clutch, and the pneumatic clutch is used for braking the hub to enable the hub to be fixedly connected with the motor shaft and the gear mechanism.

Preferably, the bearing bush, the limiting mechanism and the connecting device are sequentially arranged from one side close to the motor to the side far away from the motor.

The utility model has the advantages that:

1. the utility model discloses an installation plane bearing utilizes plane bearing's play clearance little control electric motor rotor's play volume to solve because the motor shaft axial float makes the problem that produces the sharp temperature rise of friction and lead to the axle bush between axle bush and the motor shaft, guarantee equipment safety in production, improve equipment operating stability reduces the later maintenance cost of equipment.

2. The utility model discloses can use for a long time after the installation of plane bearing, need not frequently to tear open and examine, greatly reduced maintenance intensity of labour, there is fine restriction to the axial float problem simultaneously.

3. The utility model discloses the bearing motor shaft of being convenient for of axle bush that sets up for the better operation of motor shaft, and the connecting device of setting be convenient for the farther distance of power transmission of motor shaft, and the condition of balance motor shaft drunkenness is played better to the plane bearing setting between axle bush and connecting device.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the plane bearing structure of the present invention.

The notations in the figures have the following meanings:

the device comprises a motor 1, a motor 2, a motor shaft 3, a limiting mechanism 31, a plane bearing 32, a bearing seat 4, a bearing bush 5, a connecting device 51, a hub 51 and a pneumatic clutch 52.

Detailed Description

As shown in figure 1, the device for limiting the axial movement of the motor shaft comprises a motor 1 and a motor shaft 2, wherein a limiting mechanism 3 used for limiting the axial movement of the motor shaft 2 is sleeved on the motor shaft 2, and the limiting mechanism 3 is fixed on a foundation.

The limiting mechanism 3 is a plane bearing 31, and the plane bearing 31 is fixed on the foundation through a bearing seat 32.

The bearing bush 4 used for bearing the motor shaft 2 is arranged on the foundation, and the bearing bush 4 is fixed on the foundation through a bearing bush seat.

The bearing bushes 4 are symmetrically distributed on two sides of the motor 1, and the motor shafts 2 extending out of two ends of the motor 1 are sleeved on the inner rings of the bearing bushes 4.

The motor shaft 2 is in transmission connection with a gear mechanism of the ball mill through a connecting device 5, the connecting device 5 comprises a hub 51 and a pneumatic clutch 52, and the pneumatic clutch 52 is used for braking the hub 51 to enable the hub 51 to be connected with the motor shaft 2 and the gear mechanism.

The bearing bush 4, the limiting mechanism 3 and the connecting device 5 are sequentially arranged from one side close to the motor 1 to one side far away from the motor 1.

The operation of the device is described in detail below with reference to the drawings in the examples.

A set of plane bearing 31 is arranged on the motor shaft 2 between the bearing bush 4 and the hub 51 at the load end of the motor 1, and the play of the motor rotor is controlled by the play of the plane bearing 31, so that the problem of temperature rise of the bearing bush 4 caused by friction between the bearing bush 4 and the motor shaft 2 due to axial play of the motor shaft 2 is solved; and the plane bearing 31 can be used for a long time after being installed without frequent disassembly and inspection, thereby greatly reducing the maintenance labor intensity and simultaneously having good limiting effect on the axial movement problem.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a device of restriction motor shaft axial float, includes motor (1) and motor shaft (2), its characterized in that: the motor shaft (2) is sleeved with a limiting mechanism (3) used for limiting the axial movement of the motor shaft (2), and the limiting mechanism (3) is fixed on the basis.

2. The apparatus as set forth in claim 1, wherein the means for limiting axial play of the motor shaft comprises: the limiting mechanism (3) is a plane bearing (31), and the plane bearing (31) is fixed on the basis through a bearing seat (32).

3. The apparatus as set forth in claim 1, wherein the means for limiting axial play of the motor shaft comprises: the bearing bush bearing is characterized in that a bearing bush (4) used for bearing the motor shaft (2) is arranged on the foundation, and the bearing bush (4) is fixed on the foundation through a bearing bush seat.

4. The apparatus as set forth in claim 3, wherein the means for limiting axial play of the motor shaft comprises: the bearing bushes (4) are symmetrically distributed on two sides of the motor (1), and motor shafts (2) extending out of two ends of the motor (1) are sleeved on inner rings of the bearing bushes (4).

5. The apparatus as set forth in claim 4, wherein the means for limiting axial play of the motor shaft comprises: the motor shaft (2) is in transmission connection with a gear mechanism of the ball mill through a connecting device (5), the connecting device (5) comprises a hub (51) and a pneumatic clutch (52), and the pneumatic clutch (52) is used for holding the brake hub (51) to enable the hub (51) to be fixedly connected with the motor shaft (2) and the gear mechanism.

6. The apparatus as set forth in claim 5, wherein the means for limiting axial play of the motor shaft comprises: the bearing bush (4), the limiting mechanism (3) and the connecting device (5) are sequentially arranged from one side close to the motor (1) to one side far away from the motor (1).