CN202824128U

CN202824128U - Coupling structure of lower support roller assembly and lower working roller assembly

Info

Publication number: CN202824128U
Application number: CN 201220428401
Authority: CN
Inventors: 何宁; 闫超虎; 孙立国
Original assignee: Tianjin Tianzhong Zhongzhi Technology Engineering Co Ltd
Current assignee: Tianjin Tianzhong Zhongzhi Technology Engineering Co Ltd
Priority date: 2012-08-27
Filing date: 2012-08-27
Publication date: 2013-03-27
Anticipated expiration: 2022-08-27

Abstract

The utility model provides a coupling structure of a lower support roller assembly and lower working roller assembly. The coupling structure comprises an upper working roller assembly, a pin, the lower working roller assembly, a roller changing pin shaft and the lower support roller assembly. The lower support roller assembly comprises a lower support roller bearing seat, the upper working roller assembly is fixedly connected with the lower working roller assembly through the pin, and the lower working roller assembly is connected with the lower support roller assembly through the roller changing pin shaft. The coupling structure of the lower support roller assembly and the lower working roller assembly is characterized in that the lower support roller bearing seat is provided with a roller changing long groove which is matched with the roller changing pin shaft, and the roller changing long groove is communicated with the side face of the lower support roller bearing seat. According to the coupling structure of the lower support roller assembly and the lower working roller assembly, a roller changing pin hole is changed to be the roller changing long groove which is communicated with the side face of the lower support roller bearing seat, so that scrap iron inside the long groove can be removed from the side face of the lower support. The roller changing long groove is simple in manufacturing and convenient to use, the scrap iron can be removed easily, the maintaining time of equipment can be reduced, and production efficiency can be improved.

Description

A kind of lower backing roll assembling and bottom working roll assembling draw bail

Technical field

The utility model belongs to band steel production equipment field, relates in particular to a kind of lower backing roll assembling and bottom working roll assembling draw bail.

Background technology

Four roll strip roller system of rolling mill comprise: upper backup roll assembling, top working roll assembling, lower work assembling and lower backing roll assemble four parts.Need to be moved out to roller system outside the frame during four roll strip mill rolls, just can carry out roll change work, roll change is divided into two kinds of situations: 1. change working roll, need to be moved out to top working roll assembling and lower work assembling integral body outside the frame, 2. change backing roll, by the roll change seat upper backup roll assembling is moved out to outside the frame.No matter the roll change in any situation all will assemble to realize moving roller by lower backing roll.Lower support roll bearing block (fore side) in the lower backing roll assembling leaves different roll change pin-and-holes with lower support roll bearing block (transmission side) upper surface, be respectively applied to place roll change bearing pin in the lower work assembling and the roll change bearing pin on the roll change seat, so, when the roll change hydraulic cylinder drags the lower backing roll assembling, just can drive bottom working roll assembling or the roll change seat moves by roll change pin-and-hole and roll change bearing pin, and then realize moving roller.Therefore, to place the roll change pin-and-hole utilization rate of bottom working roll assembling high being used on back-up chock (fore side) and the lower support roll bearing block (transmission side) at present in roll change.

The top working roll assembling is connected and fixed by pin and bottom working roll assembling and is integrated, the bottom working roll assembling is connected and fixed by roll change bearing pin and lower backing roll assembling and is integrated, when the roll change hydraulic cylinder drags the lower backing roll assembling, just can drive bottom working roll assembling and top working roll assembling movement by roll change pin-and-hole and roll change bearing pin, and then realize moving roller.Because all respectively there is its scope of application in the roller of working roll and backing roll footpath, no matter for big roller footpath or pony roll footpath, can both guarantee to realize moving roller and roll change, so the degree of depth of roll change pin-and-hole is darker, to adapt to the different depth position of roll change bearing pin.The rolling condition of steel mill is more abominable; all-pervasive with the iron filings that fly on the steel, between roll change bearing pin and the roll change pin-and-hole side 1mm gap is arranged, so usually amass full iron filings in the roll change pin-and-hole; the roll change bearing pin wants to insert toward the depths, must remove the iron filings in the roll change pin-and-hole.But the degree of depth of roll change pin-and-hole is darker, and the diameter of roll change pin-and-hole is also little, is unfavorable for removing iron filings, has increased thus the input of manpower, prolongs roll changing time, has reduced production efficiency.

Summary of the invention

In order to address the above problem, the utility model provides a kind of lower backing roll assembling and bottom working roll assembling draw bail, comprise the top working roll assembling, pin, the bottom working roll assembling, the roll change bearing pin, the lower backing roll assembling, described lower backing roll assembling comprises the lower backing roll bearing block, described top working roll assembling is mounted with bottom working roll by pin and is connected, described bottom working roll assembling is by roll change bearing pin and lower backing roll assembly connection, it is characterized in that described lower backing roll bearing block is provided with the roll change elongated slot that mates with the roll change bearing pin, described roll change elongated slot communicates with lower backing roll bearing block side.

The beneficial effects of the utility model are: the utility model changes the roll change pin-and-hole into the roll change elongated slot that communicates with the bearing block side, can remove from lower backing roll bearing block side the iron filings in the groove; The processing of roll change elongated slot is simple, easy to use, is easy to remove iron filings, has reduced the plant maintenance time, has improved production efficiency.

Description of drawings

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

Fig. 2 is A section enlarged drawing among Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further explained, such as Fig. 1-Fig. 2, the assembling of 1-top working roll, 2-pin, the assembling of 3-bottom working roll, 4-roll change bearing pin, the assembling of 5-lower backing roll, 6-lower backing roll bearing block, 7-roll change elongated slot.

As shown in Figure 1 and Figure 2, the utility model comprises top working roll assembling 1, pin 2, bottom working roll assembling 3, roll change bearing pin 4, lower backing roll assembling 5, roll change elongated slot 7, lower backing roll assembling 5 comprises lower backing roll bearing block 6, top working roll assembling 1 is fixedly connected with bottom working roll assembling 3 by pin 2, offer the roll change elongated slot 7 that mates and communicate with lower backing roll bearing block 6 sides with roll change bearing pin 4 at lower backing roll bearing block 6, bottom working roll assembling 3 is connected by roll change bearing pin 4 and lower backing roll assembling 5.When roll change elongated slot 7 interior iron filings are too much, can remove from lower backing roll bearing block 6 sides the iron filings in the groove.

Above an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.

Claims

1. a lower backing roll assembling is assembled draw bail with bottom working roll, comprise top working roll assembling (1), pin (2), bottom working roll assembling (3), roll change bearing pin (4), lower backing roll assembling (5), described lower backing roll assembling (5) comprises lower backing roll bearing block (6), described top working roll assembling (1) is fixedly connected with bottom working roll assembling (3) by pin (2), described bottom working roll assembling (3) is connected with lower backing roll assembling (5) by roll change bearing pin (4), it is characterized in that described lower backing roll bearing block (6) is provided with the roll change elongated slot (7) that mates with roll change bearing pin (4), described roll change elongated slot (7) communicates with lower backing roll bearing block (6) side.