CN201448377U

CN201448377U - Shaft coupling of motor and encoder for aluminum rolling mill

Info

Publication number: CN201448377U
Application number: CN2009200285320U
Authority: CN
Inventors: 王继东; 韩平德
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-24
Filing date: 2009-06-24
Publication date: 2010-05-05
Anticipated expiration: 2019-06-24

Abstract

The utility model discloses a shaft coupling of a motor and an encoder for an aluminum rolling mill, which aims to overcome the defects that the usage of a spring shaft coupling between the optical encoder and the motor on the aluminum rolling mill in the prior art can cause the instable rotation of the motor when the rotating speed changes, thereby affecting the quality of products, and the emergency shutdown is caused by a spring due to fatigue failure, resulting in unsafe accidents and increased cost. The shaft coupling is of an elastic rubber sleeve. Since the shaft coupling is of an integral elastic rubber sleeve, the shaft coupling has flexility, certain anti-torsional strength, and poor sensitivity for the change in speed in the process of acceleration and deceleration, so that the aluminum rolling mill can rotate stably, and the finished product rate of the rolled aluminum sheet products can not be reduced due to the change in speed; and the elastic rubber sleeve has good stability, so that the emergency shutdown does not occurs except during the scheduled maintenance, accordingly, the economic losses caused by fire are eliminated. Compared with the spring shaft coupling, the utility model has safe and reliable use and low manufacturing cost and use cost.

Description

The coupling of aluminium stand motor and encoder

Technical field

The utility model belongs to machine part, the coupling that uses on specifically a kind of aluminium milling train.

Background technique

Aluminium plate needs photoelectric encoder control with the motor of rolling press, so that motor and photoelectric encoder reach synchronous when rotating, and accurately feeding back signal to control centre, the speed operation that the aluminium milling train is required according to control centre uses coupling to be connected between aluminium stand motor and the photoelectric encoder.

Between the traditional motor and photoelectric encoder, be to use as coupling with spring.The shortcoming of this coupling is, if control centre requires the speed of aluminium milling train, need on the basis of a constant speed, promote or reduce, the elasticity of spring coupling will change in the process of raising speed or reduction of speed, the rotational hysteresis of aluminium milling train during raising speed, the rotation of milling train is leading during deceleration, so just cause the asynchrony phenomenon that occurs trace between motor and the encoder, thereby cause motor to rotate not steady because of current fluctuation, and then make the rotation of aluminium milling train not steady, have influence on the quality of product of producing aluminium plate, reject rate is increased;

Simultaneously, above-mentioned spring coupling is easy to generate fatigue ruption because of producing continuously, if aluminium milling train coupling in aluminum sheet material process disconnects suddenly, photoelectric encoder just can not feed back to control centre, in a single day control centre can not get feedback signal, will send the instruction of emergency shutdown, the result of emergency shutdown makes and is broken at rolling aluminium plate and become waste product, maximum danger is that sheet material has broken and is easy to cause fire, and in a single day milling train catches fire and can cause the economic loss of up to ten million units to enterprise;

Also have, the emergency shutdown outside the plan in ordinary production is started shooting again, also can make very big waste to production, increases manufacture cost.

The model utility content

Technical problem to be solved in the utility model is; overcome on the prior art aluminium milling train and use spring coupling between the photoelectric encoder and motor; when rotating speed changes, can cause motor to rotate and steadily not influence quality of product; and spring provides the coupling of a kind of aluminium stand motor and encoder because of fatigue ruption causes the shortcoming that emergency shutdown is dangerous and increase cost of production.

In order to solve the problems referred to above that prior art exists, the utility model is to adopt following technical proposals to realize: the coupling that is connected between the motor coupling shaft of aluminium milling train and the photoelectric encoder axle is for being with flexible gum cover.

The utility model also has following technical characteristics:

Describedly be with flexible gum cover, be sleeve with flexible rubber material;

Described gum cover is that the output shaft termination of the coupling shaft of motor and photoelectric encoder is inserted the two ends endoporus of gum cover respectively in friction tight mode with the Placement of axle.

Advantage of the present utility model and good effect are, because the coupling that the motor coupling shaft of aluminium milling train is connected with the photoelectric encoder axle is one and is with flexible whole gum cover, existing pliability, has certain anti-torsional strength again, the receptance that changes in the process to raising speed or reduction of speed is not strong, therefore make the motor current fluctuation very little, it is not steady can not cause the aluminium milling train to rotate, and the aluminium plate product that shuts out can not reduce yield rate because of velocity variations yet; The good stability of elastic rubber sleeve in the service time beyond the scheduled overhaul, the phenomenon because of the fracture emergency shutdown can not occur; fire also just therefore not occurring causes the situation of economic loss to take place; compare with spring coupling, safe in utilization, reliable, manufacturing cost and use cost is low.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Among Fig. 1, motor 1 on the aluminium milling train, the motor shaft 1.1 of its left end is connected with the aluminium milling train, the coupling shaft 1.2 of motor 1 right-hand member and the output shaft of photoelectric encoder 4 4.1 are connected by coupling, photoelectric encoder 4 usefulness supports 3 are fixed on the right-hand member head of motor 1, the coupling shaft 1.2 of motor 1 and the output shaft 4.1 of photoelectric encoder 4, spindle nose is oppositely arranged on same center line, and the coupling between the diaxon is for being with flexible gum cover 2.

Described gum cover 2 is the cannulated sleeve with flexible rubber material.

Certainly, described coupling also can be to have and cannulated sleeve with other materials of flexible rubber sleeve same nature.

The two ends of described gum cover 2 are that the termination of coupling shaft 1.2 and output shaft 4.1 is inserted in the endoporus at gum cover 2 two ends in friction tight mode respectively and connected with the Placement of the output shaft 4.1 of the coupling shaft 1.2 of motor 1 and photoelectric encoder 4.

Claims

1. the coupling of aluminium stand motor and encoder, it is characterized in that: described coupling is for being with flexible gum cover.

2. the coupling of aluminium stand motor as claimed in claim 1 and encoder is characterized in that: describedly be with flexible gum cover, be the jacket casing with flexible rubber material.

3. the coupling of aluminium stand motor as claimed in claim 1 and encoder is characterized in that: described gum cover is that the output shaft termination of the coupling shaft of motor and photoelectric encoder is inserted the two ends endoporus of gum cover respectively in friction tight mode with the Placement of axle.