CN-115780536-B - Guide locking mechanism of universal rolling mill

Abstract

The invention relates to a guide locking mechanism of a universal rolling mill, and belongs to the technical field of steel rail production equipment in the metallurgical industry. According to the technical scheme, ejector rods (6) matched with copper sleeves (4) are respectively arranged at one ends of two eccentric shafts (3), the ejector rods (6) are connected to lock nuts (5) in a threaded mode, the lock nuts (5) are fixed to guide Wei Hezi (2), the lock nuts (5) and the ejector rods (6) form a guide X-direction locking mechanism, a locking plate (7) is arranged between a guide (1) and a guide Wei Hezi (2), a wedge-shaped structure is formed between the locking plate (7) and the guide (1), a locking rod (8) connected with the locking plate (7) in a threaded mode is arranged between the locking plate (7) and the guide Wei Hezi (2), and the locking plate (7) and the locking rod (8) form a guide YZ-direction locking mechanism. The guide box has the beneficial effects that the guide box can be prevented from shaking, and the service lives of the copper sleeve and the eccentric shaft are prolonged.

Inventors

• ZHU HUALIN
• GUAN XUDONG
• YANG SHENGFAN
• ZHANG ZHIPENG
• LIU TAO
• JIAO JIANPENG
• CHEN LIKE

Assignees

• 邯郸钢铁集团有限责任公司
• 河钢股份有限公司邯郸分公司

Dates

Publication Date

20260505

Application Date

20221117

Claims (3)

1. 1. A universal mill guide locking mechanism comprises a guide (1), a guide Wei Hezi (2), an eccentric shaft (3) and a copper sleeve (4), wherein the guide (1) is connected with the guide Wei Hezi (2) through front and rear eccentric shafts (3) according to the rolling direction, the copper sleeve (4) is arranged between the two ends of the two eccentric shafts (3) and the guide Wei Hezi (2), the guide (1) and the guide Wei Hezi (2) are limited by the copper sleeve (4), the copper sleeve (4) clamps the two side surfaces of the installation position of the guide (1) and keeps a gap less than or equal to 0.5mm, the guide (1) can be subjected to position adjustment by the eccentric shafts (3) and can keep small shaking, one ends of the two eccentric shafts (3) are provided with wrench chucks, the universal mill guide locking mechanism is characterized in that the other ends of the two eccentric shafts (3) are respectively provided with a push rod (6) matched with the copper sleeve (4), the diameter of the central hole of the push rod (6) is larger than the diameter of the end of the eccentric shaft (3) and smaller than the copper sleeve (4), the diameter of the push rod (6) is smaller than the diameter of the end of the copper sleeve (4), the push rod (6) is connected with the guide nut (24) in the direction (35X 5) in the direction of the guide nut (2) to form a locking mechanism (35) in the locking direction of the guide nut (35) and the nut (35) in the nut locking mechanism (35) in the direction of the screw nut (2), the copper sleeve (4) is changed in the X direction through the rotation of the ejector rod (6), a locking plate (7) is arranged between the guide (1) and the guide Wei Hezi (2), a wedge-shaped structure is formed between the locking plate (7) and the guide (1), the wedge-shaped structure is arranged between the two eccentric shafts (3), the angle of the wedge-shaped structure is 20-50 degrees, a locking rod (8) in threaded connection with the locking plate (7) is arranged between the locking plate (7) and the guide Wei Hezi (2), the locking plate (7) and the locking rod (8) form a guide YZ direction locking mechanism, the guide YZ direction locking mechanism is arranged between the bottom of the guide (1) and a gap between the guide Wei Hezi (2), and the gap between the guide (1) and the guide Wei Hezi (2) is tensioned through the locking rod (8) and the wedge-shaped structure between the locking plate (7) and the guide (1), so that shaking of the guide YZ direction is reduced.
2. 2. The guide locking mechanism of the universal mill according to claim 1, wherein the central hole of the ejector rod (6) in the guide X-direction locking mechanism is a hexagon socket.
3. 3. The guide locking mechanism of the universal mill according to claim 1, wherein in the guide YZ-direction locking mechanism, a locking rod (8) which is in threaded connection with the locking plate (7) between the locking plate (7) and the guide Wei Hezi (2) is propped against a movable pin (9), the movable pin (9) is arranged in a movable pin groove (10), and the movable pin groove (10) is arranged on the guide Wei Hezi (2).

Description

Guide locking mechanism of universal rolling mill Technical Field The invention relates to a guide locking mechanism of a universal rolling mill, and belongs to the technical field of steel rail production equipment in the metallurgical industry. Background The guide of the universal rolling mill is one of the most important parts of the universal rolling mill, and comprises a guide, a guide Wei Hezi, eccentric shafts and sleeves, the guide is connected with a guide box through a front eccentric shaft and a rear eccentric shaft according to the rolling direction, copper sleeves are arranged between the two ends of the two eccentric shafts and the guide box and serve as a guide rotating bearing, one ends of the two eccentric shafts are provided with spanner clamps, so that the two eccentric shafts are hexagonal or square and used for rotating the eccentric shafts, and the following problems exist in the guide installation mode of the universal rolling mill: (1) The guide and the guide box are limited by a copper sleeve, the copper sleeve clamps the two side surfaces of the guide installation position, and a gap less than or equal to 0.5mm is kept, so that the guide can be adjusted in position by the eccentric shaft and can keep small shaking, but in actual use, the fit gap is enlarged due to abrasion and deformation of the copper sleeve, after the gap is enlarged, the shaking amount of the working surface position on the guide is far greater than the gap, and the rolling piece cannot be normally guided into a hole to generate the problems of scar, steel piling and the like; (2) The copper bush is difficult to replace after being worn, and the guide, the eccentric shaft and the like can be replaced by a new copper bush after being completely disassembled; (3) When the gap is treated, a method of directly inserting an opening gasket is generally adopted, the gasket is easy to drop and the copper sleeve is easy to damage; (4) The eccentric shaft and the guide are matched, so that the vertical shaking amount of the guide tip is increased after abrasion, and the guide control is not facilitated. Disclosure of Invention The invention aims to provide a guide locking mechanism of a universal rolling mill, which can prevent guide from shaking in a guide box, prolong the service lives of a copper sleeve and an eccentric shaft and solve the problems in the background art. The technical scheme of the invention is as follows: A guide locking mechanism of a universal rolling mill comprises a guide, a guide Wei Hezi, eccentric shafts and sleeves, wherein the guide is connected with a guide box through a front eccentric shaft and a rear eccentric shaft according to the rolling direction, copper sleeves are arranged between the two ends of the two eccentric shafts and the guide box, spanner chucks are arranged at one ends of the two eccentric shafts, ejector rods matched with the copper sleeves are respectively arranged at the other ends of the two eccentric shafts, the ejector rods are in threaded connection with lock nuts, the lock nuts are fixed on the guide box, the lock nuts and the ejector rods form the guide X-direction locking mechanism, a locking plate is arranged between the guide box and the guide box, a wedge structure is formed between the locking plate and the guide box, a locking rod in threaded connection with the locking plate is arranged between the locking plate and the guide box, and the locking plate and the locking rod form the guide YZ-direction locking mechanism. The ejector rod in the guide X-direction locking mechanism is provided with a central hole, and the diameter of the central hole of the ejector rod is larger than the diameter of the end part of the eccentric shaft and smaller than the diameter of the copper sleeve. The central hole of the ejector rod in the guide X-direction locking mechanism is an inner hexagonal hole. In the guide YZ-direction locking mechanism, a wedge-shaped structure is formed between the locking plate and the guide and arranged between the two eccentric shafts, and the angle of the wedge-shaped structure is 20-50 degrees. In the guide YZ-direction locking mechanism, a locking rod in threaded connection with a locking plate between the locking plate and the guide box is propped against a movable pin, the movable pin is arranged in a movable pin groove, and the movable pin groove is arranged on the guide box. The guide box has the beneficial effects that the guide box is prevented from shaking by the guide X-direction locking mechanism and the YZ-direction locking mechanism, so that the rolled piece can be guided into the hole normally, and the service lives of the copper sleeve and the eccentric shaft are prolonged. Drawings FIG. 1 is an assembled view of the present invention; FIG. 2 is an exploded view of the present invention; FIG. 3 is a cross-sectional view of the eccentric shaft of the present invention; FIG. 4 is a detailed view of the eccentric shaft of the pres