CN210754361U - Split elastic damping body of high-speed wire rolling mill - Google Patents

Abstract

A split elastic damping body of a high-speed wire rolling mill is characterized in that a large end head of a balancing device is connected with a cushion block into a whole by adopting a movable connecting structure, so that the sum of the length of the connected cushion block and the length of one side of the large end of the balancing device meets a length value of a use requirement; the movable connecting structure is a threaded connecting structure. The advantage is that the following combinations can be used: 1. a combination of a large end head of a balancing device and a cushion block is used; 2. the cushion block is disassembled, and the large end of the balancing device is directly used, so that the assembling requirement of the minimum roll diameter can be met; the device has low manufacturing cost, simple assembly, practicality and reliability; effectively prolongs the service life of the roller and reduces the roller changing time.

Description

Split type high wire rolling mill elastic damping body

technical field

The utility model relates to an elastic damping body of a high wire closed-end rolling mill in the iron and steel industry, in particular to a split type high wire rolling mill elastic damping body.

Background technique

There are three types of elastic damping bodies, YG550, YG450 and YG400, with a stroke of 50mm. The minimum roll diameters that can be used by the elastic damping body of each type of rolling mill in the three roll stands are 550mm, 445mm, and 370mm, respectively. In order to improve the utilization rate of the rolls, reduce the cost of the rolls, and create more production benefits for each pair of rolls, three types of rolling mill elastic dampers are now required to be used in the three roll stands with minimum roll diameters of 520mm, 430mm, and 360mm. The original design of the elastic damping body of the rolling mill could not meet the travel requirements. Specifically, there are the following problems: 1. When the diameters of the three types of rolls are smaller than 550mm, 445mm, and 370mm, the stroke of the elastic damper piston rod of the original design size rolling mill is already the shortest and cannot be shortened further; 2. The existing three types of rolls are used with a diameter of 550mm. , 445mm, 370mm can not continue to use; 3. It is difficult to deepen the original design depth of the elastic damping body installation opening on the rolling mill base, and dust and iron oxide scale are easy to enter the installation opening and accumulate and block. The above problems have resulted in the low utilization rate of rolls, increased efforts in roll inventory and management and maintenance, and the total output of rolls has not reached the highest level.

Utility model content

The purpose of the utility model is to provide an elastic damping body of a split type high wire rolling mill which is low in production cost, simple in assembly, practical and reliable, and which can meet the assembly requirements of the minimum roll diameter.

The solution of the present utility model is as follows:

A split-type high-wire rolling mill elastic damping body, which divides the high-pressure balancing device into two parts: a large end and a cushion block, and the large end of the balancing device is connected with the cushion block by a movable connection structure, so that the connection of the cushion block is integrated. The sum of the length and the length of one side of the large end of the balancing device is equal to the length of the original balancing device, and the length value meets the requirements for use, and the high-pressure bearing capacity of the balancing device remains unchanged.

A more specific technical solution also includes: the movable connection structure is a threaded connection structure.

Further: the threaded connection structure is a boss with a reduced diameter on the big end side of the balancing device, and an external thread is processed on the edge of the boss, the spacer is a structure with a sinking platform, and an internal thread is processed on the inner wall of the sinking platform. , connect the cushion block with the large end of the balance device through a threaded connection structure as a whole.

The advantages of the present utility model are:

(1) The following combinations can be used: 1. Use the combination of balancing device + pad; 2. Only use the large end of the balancing device, so that it can meet the minimum roll diameter assembly requirements;

(2) The production cost is low, the assembly is simple, practical and reliable;

(3) After redesigning the damping body, the rolls corresponding to the elastic damping bodies of the three types of rolling mills YG550, YG450 and YG400 can be used more in depth of 30mm, 15mm and 10mm respectively, and the single turning amount of the three kinds of rolls is about 10mm respectively. , 7mm, 7mm, it can be seen that the three kinds of rolls (one set) can guarantee at least one more turning (that is, one more use). Calculated per ton, using a set of rollers more than once can create more benefits at least 24000×4000 yuan/ton = 96 million yuan; in addition, this design effectively improves the service life of the rollers and reduces the time for changing the rollers (labor intensity of workers) .

Description of drawings

Fig. 1 is the structural schematic diagram of YG400 made by the utility model.

Fig. 2 is the structural schematic diagram of YG450 made by the utility model.

Fig. 3 is the structural schematic diagram of YG550 made by the present invention.

Detailed ways

As shown in Figures 1, 2, and 3, the large end 1 side of the balancing device is a boss with a reduced diameter, and an external thread is processed on the edge of the boss. Process the internal thread, and connect the spacer block 2 with the large end 1 of the balance device through the threaded connection structure, so that the sum of the length of the spacer block 2 and the length of one side of the large end 1 of the balance device after connection is equal to the length of the original balance device , and the length value that meets the requirements for use, the high-pressure bearing capacity of the balancing device remains unchanged.

When in use, if the length of the balance device big end 1 + pad 2 meets the requirements for use, tighten the pad 2 and the balance device big end 1 into one, so that the overall length meets the use requirements; if the balance device big end 1 + pad When the length of block 2 does not meet the requirements for use, remove the cushion block 2 and directly use the large end 1 of the balance device to make its length meet the requirements for use.

Using the design of the structure shown in Figures 1, 2 and 3, the depths that can be used for the rolls corresponding to the elastic damping bodies of the three types of rolling mills YG550, YG450, and YG400 are 30mm, 15mm, and 10mm, respectively. The single turning amount of the three rolls They are about 10mm, 7mm, and 7mm, respectively. It can be seen that the three types of rolls (one set) can guarantee at least one more turning (that is, one more use). Calculated at an average unit price of 4,000 yuan / ton, one set of rollers can be used more than once to create more benefits at least 24,000 × 4,000 yuan / ton = 96 million yuan; in addition, this design effectively improves the service life of the rolls and reduces the time for roll changing.

Claims (3)

1. The utility model provides a split type high-speed wire rolling mill elastic damping body which characterized in that: the high-pressure balancing device is divided into a large end and a cushion block, the large end (1) of the balancing device is connected with the cushion block (2) into a whole by adopting a movable connecting structure, so that the sum of the length of the cushion block (2) after connection and the length of one side of the large end (1) of the balancing device is equal to the length of the original balancing device, and the length value meets the use requirement.

2. The split elastic damping body for high-speed wire rolling mills according to claim 1, which is characterized in that: the movable connecting structure is a threaded connecting structure.

3. The split elastic damping body for high-speed wire rolling mills according to claim 2, which is characterized in that: the threaded connection structure is a boss with a diameter reduced on the side of the large end (1) of the balancing device, external threads are machined on the edge of the boss, the cushion block (2) is of a structure with a sinking platform, internal threads are machined on the inner wall of the sinking platform, and the cushion block (2) is connected with the large end (1) of the balancing device into a whole through the threaded connection structure.

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