CN-116851452-B - Roller backup tool

Abstract

The invention relates to the technical field of roller replacement, in particular to a roller preparation tool, which comprises a limiting rod, wherein a handle is arranged at the bottom end of the limiting rod, an adjusting rod is connected inside the limiting rod through threads, an installing plate is fixedly connected to the top end of the adjusting rod, a pair of clamping plates are connected inside the installing plate in a sliding manner, an adjusting component is arranged inside the clamping plates, the adjusting component is used for adjusting the distance between the pair of clamping plates, and clamping components are fixedly connected to one sides, away from each other, of the pair of clamping plates, so that staff does not need to be in direct contact with a roller, the safety of the staff is improved, the working range of the staff is prolonged, the roller preparation tool is suitable for rollers with narrow installation positions, the principle similar to a lever can be achieved after the tool is used, the effect similar to the lever is achieved by taking the contact point with a roller bearing seat as a fulcrum, and therefore, compared with the effect similar to that of directly holding the lever, the effect of saving labor and naturally stabilizing is better.

Inventors

• ZHOU HU
• ZHU JIANJIAN
• CHEN CHEN

Assignees

• 张家港扬子江冷轧板有限公司
• 江苏沙钢集团有限公司

Dates

Publication Date

20260512

Application Date

20230719

Claims (1)

1. 1. The roller preparation tool is characterized by comprising a limiting rod (1), wherein a handle (2) is arranged at the bottom end of the limiting rod (1), an adjusting rod (3) is connected inside the limiting rod (1) through threads, a mounting plate (4) is fixedly connected to the top end of the adjusting rod (3), a pair of clamping plates (5) are connected inside the mounting plate (4) in a sliding manner, an adjusting assembly (6) is arranged inside the clamping plates (5), the adjusting assembly (6) is used for adjusting the distance between the pair of clamping plates (5), clamping assemblies (7) are fixedly connected to one sides, away from each other, of the pair of clamping plates (5), and the clamping assemblies (7) are used for being clamped into bearing seat holes of a roller to be replaced; The adjusting assembly (6) comprises a pair of threaded rods (601) which are clamped with each other, the directions of threads formed on the pair of threaded rods (601) are opposite, the pair of threaded rods (601) are respectively connected with the pair of clamping plates (5) in a threaded manner, and one ends, away from each other, of the pair of threaded rods (601) are respectively fixedly connected with a limiting disc (602) and a rotating disc (603); The clamping assembly (7) comprises a clamping column (701), wherein one end of the clamping column (701) close to the clamping plate (5) is connected with a limiting ring (702) through threads, and the limiting ring (702) is fixedly connected with the clamping plate (5); The clamping column (701) is internally connected with a plurality of jacking columns (705) in a sliding manner, the jacking columns (705) are distributed in a circumferential array, one end, close to the center of the clamping column (701), of each jacking column (705) is provided with a chamfer, one end, far away from the clamping column (701), of each jacking column (705) is fixedly connected with an adjusting plate (706), a pair of limiting elastic columns (707) are fixedly connected between each adjusting plate (706) and the corresponding clamping column (701), jacking components are arranged in the clamping columns (701), and the jacking components are used for jacking the jacking columns (705) out of the clamping columns (701); The jacking assembly comprises a sliding block (703), the sliding block (703) is in sliding connection with the inside of a clamping column (701), a chamfer matched with the jacking column (705) is formed at one end, close to the jacking column (705), of the sliding block (703), a reset spring (704) is fixedly connected between the sliding block (703) and a clamping plate (5), air guide holes are formed in the clamping column (701) and the inside of a limiting ring (702), a connecting cap (709) is mounted at the position, outside the limiting ring (702), of the limiting ring and located at the air guide holes, the connecting cap (709) is communicated with an inflating assembly (8) through an air guide pipe, and the inflating assembly (8) is used for conveying air into a closed space between the sliding block (703) and the clamping column (701) and between the clamping plate (5); the inflating assembly (8) comprises a reciprocating push rod (801), a piston (802) is fixedly connected to the top end of the reciprocating push rod (801), the reciprocating push rod (801) is slidably connected inside a limit rod (1) and a handle (2), the piston (802) is slidably connected inside the limit rod (1), a cavity matched with the piston (802) is formed inside the limit rod (1), a plurality of groups of communicating pipes (803) are connected in a penetrating manner inside the limit rod (1) and at the corresponding position of the cavity, a mounting cap (804) is mounted outside one pair of communicating pipes (803), an air duct is connected with the mounting cap (804), one-way valves are mounted inside the communicating pipes (803) respectively according to functions of the communicating pipes, a mounting groove is formed inside the handle (2) and at the position opposite to the reciprocating push rod (801), and a limit magnet (805) is fixedly connected at the corresponding position of the inside the handle (2). A fastening ring (604) is arranged outside the pair of threaded rods (601) and positioned at the mutually clamping position; One side, close to each other, of the pair of clamping plates (5) is fixedly connected with a limiting plate (10) and a matching plate (11) respectively, and the limiting plate (10) and the matching plate (11) are connected in a sliding manner and matched with each other; One end of the clamping column (701) far away from the limiting ring (702) is in ball joint with a guide ball (708), and the guide ball (708) is made of wear-resistant materials; the clamping plates (5) are internally provided with guide holes (9) at positions corresponding to the reset springs (704), one pair of the clamping plates (5) are fixedly connected with hollow elastic plates (12) on one sides close to each other, the hollow cavities inside the hollow elastic plates (12) are communicated with the guide holes (9), and one pair of the hollow elastic plates (12) are fixedly connected with friction strips on one sides close to each other.

Description

Roller backup tool Technical Field The invention relates to the technical field of roller replacement, in particular to a roller preparation tool. Background The rolling mill is mechanical equipment used in the rolling process from raw materials to finished products, and has the advantages of high rigidity, high steel belt quality, time and labor saving in roll changing. In the process of using some rolling mills, the situation of replacing the rollers is unavoidable, particularly for part of types of rolling mills, the rollers are often replaced quite frequently, the replacement of large-scale rollers in the prior art is required to be carried out in a crane hoisting mode, in the process of crane hoisting of the rollers, the rollers inevitably have shaking conditions, and various safety accidents can be caused if ground commanders stand at improper positions or the vision of the crane is blocked and blindly operated; In order to solve the problems, at present, part of people can adopt a roller holding mode to replace the roller, and the action slows down the shaking of the roller to a certain extent, but because the roller is heavier, the hands of people can shake along with the roller in general, the effect is not ideal, and along with the installation progress of the roller, the rollers need to be continuously moved to the installation position, at the moment, the people also need to walk along, and the space of a roller changing vehicle is narrow, so that the hands are easy to be injured by extrusion or the hands of people can not stand stably and fall down, and the personal safety of staff is influenced. Disclosure of Invention Therefore, the invention aims to solve the technical problems that in the prior art, the roller needs to be manually held in the roller replacement process, and the problems of high potential safety hazard and poor effect exist. In order to solve the technical problems, the invention provides a roller preparation tool, which comprises a limit rod, wherein a handle is arranged at the bottom end of the limit rod, an adjusting rod is connected inside the limit rod through threads, an installing plate is fixedly connected to the top end of the adjusting rod, a pair of clamping plates are connected inside the installing plate in a sliding manner, an adjusting assembly is arranged inside the clamping plates, the adjusting assembly is used for adjusting the distance between the pair of clamping plates, clamping assemblies are fixedly connected to one sides, away from each other, of the pair of clamping plates, and the clamping assemblies are used for being clamped into holes of bearing seats of rollers to be replaced; when the device works, firstly, staff is required to rotate the adjusting rod to adjust the whole length according to own requirements, then the staff holds the handle to lift the whole tool, and according to different installation progress of the roller, two limiting modes can be selected, namely, the distance between the pair of clamping plates is adjusted by the adjusting component in advance to be matched with the width of the bearing seat of the roller to be replaced, then the bearing seat is clamped between the pair of clamping plates to limit the roller, the method can effectively limit the shaking of the roller, secondly, the clamping component is used to clamp the bearing seat by inserting the clamping component into a hole of the bearing seat of the roller to be replaced, so that the roller is limited, and the method is applicable to limiting the space of the staff and can not be used when the limiting rod is used for limiting, and the working range of the clamping plates and the clamping component is prolonged by the mutual matching of the limiting rod, the handle and the adjusting rod, so that the device is not in direct contact with the roller, the device improves the safety of staff, prolongs the working range of the staff, is suitable for some rollers with narrow installation positions, and can achieve the principle similar to a lever after using a tool, and the device achieves the effect similar to the lever by taking the contact point with a roller bearing seat as a fulcrum, so that compared with the direct hand lever, the device is more labor-saving and has better natural stabilizing effect. In one embodiment of the invention, the adjusting assembly comprises a pair of threaded rods which are clamped with each other, the directions of threads formed on the pair of threaded rods are opposite, the pair of threaded rods are respectively in threaded connection with the pair of clamping plates, one ends of the pair of threaded rods, which are far away from each other, are respectively fixedly connected with a limiting disc and a rotating disc, when the distance between the pair of clamping plates is required to be adjusted in working, staff can rotate the rotating discs, the rotating discs rotate to drive the pair of threaded rods which are clamped with each