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Hydraulic-controlled shaft sleeve locking device

A technology of locking device and bushing, which is applied to the driving device of metal rolling mill, metal rolling, manufacturing tools, etc., can solve the problems of long unlocking operation time, short service life, unsatisfactory and other problems, so as to achieve the service life The effect of reducing labor intensity and improving work efficiency

Pending Publication Date: 2019-02-22
TAIER HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional mechanical locking device relies on the spring force and the limit of the ball to realize its "locking" or "unlocking". This locking device has a short service life, poor reliability, and long operating time for unlocking, which cannot meet Modern Continuous Rolling Requirements

Method used

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  • Hydraulic-controlled shaft sleeve locking device
  • Hydraulic-controlled shaft sleeve locking device
  • Hydraulic-controlled shaft sleeve locking device

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] In order to enable those skilled in the art to have a clearer understanding of the present invention, first a brief introduction is made to the mechanical locking device, as Figure 5 As shown, the mechanical locking device is under the force of the spring (17), the spring sleeve (15) moves downwards and extends into the inclined groove of the transmission shaft 19, at the same time, the steel ball (18) is located on the upper part of the spring sleeve and is stuck The spring cover prevents the spring cover from moving up and is in a "locked" state; when unlocking, press the top column (16) to move the top column down, that is, the steps on the top column move down, the steel ball falls, and at this time the drive is pulled outward The shaft (19), the inclined surface of the transmission shaft inclined groove produces a radial upward force on the spring cover, so that the spring cover is retracted, and the transmission shaft (19) is drawn out, showing an "unlocked" state...

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PUM

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Abstract

The invention discloses a hydraulic-controlled shaft sleeve locking device. The hydraulic-controlled shaft sleeve locking device comprises a shaft sleeve; a positioning ring is in bolt connection intothe right end of the shaft sleeve; multiple radial step-shaped large holes are uniformly formed in the peripheral surface of the shaft sleeve in the peripheral direction; the large holes communicatewith the internal of the shaft sleeve; locking modules are arranged in the large holes; the locking modules are hydraulically controlled to enable one ends to extend into the shaft sleeve or retract;multiple step-shaped small holes are uniformly formed in the peripheral surface of the shaft sleeve on the right sides of the locking modules in the peripheral direction; hydraulic oil joints are connected into the small holes; and one ends of the hydraulic oil joints communicate with hydraulic oil conveying systems. The hydraulic-controlled shaft sleeve locking device is high in reliability, longin service life and convenient to operate, relieves the labor intensity of maintenance and installation, and improves the working efficiency.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission, and in particular relates to a hydraulically controlled shaft sleeve locking device. Background technique [0002] With the continuous development of metallurgical technology, higher requirements are put forward for rolling equipment. For the rolling unit, the main and transmission universal joint shafts are key transmission components. The connecting shaft sleeve produces axial movement, and can keep the roll and the cardan shaft moving as a whole during roll change and maintenance. Usually, a locking device is provided on the sleeve. However, the traditional mechanical locking device relies on the spring force and the limit of the ball to realize its "locking" or "unlocking". This locking device has a short service life, poor reliability, and long operating time for unlocking, which cannot meet The requirements of modern continuous rolling. Contents of the invention [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B35/14
CPCB21B35/14
Inventor 贾甫李华晶丁飞谷道强
Owner TAIER HEAVY IND