Background
On a section steel rolling production line, although the section steel is of a symmetrical structure, the cooling temperature field is limited by space, so that the section steel is cooled to bend to different degrees, the problem is usually solved by straightening by adopting a straightener, the specification variety of the section steel is various, when the straightener straightens sections of different specifications and varieties, straightening rollers of different specifications are needed, the straightening rollers are needed to be replaced, the straightening rollers are replaced by adopting a pulling operation side straightening housing, the straightening rollers are replaced by a roller replacing trolley, in the process of pulling the straightening rollers on the pulling operation side housing, the through housing slides on two groups of rails, the abrasion wear on the two groups of rails is different in the sliding process, the rail is frequently bitten by the housing, the root cause of the phenomenon is that the straightener is impacted by straightening load for a year and month, the elevation of the rail is often not kept to be equal, the abrasion of the abrasion plates on the two groups of rails is inconsistent, the replacement frequency is high, the replacement frequency is not high, the cost is high, and therefore the problem of the rail straightener is adjustable and the replacement frequency of the abrasion plate is well solved.
Disclosure of Invention
Aiming at the problems, the invention provides a method for slowing down the replacement frequency and elevation adjustment of a roll changing track of a straightener, and the method can realize the elevation adjustment of a self-adaptive track by combining wedge-shaped cushion blocks, and the device is simple and convenient to maintain.
In order to achieve the above purpose, the roll changing rail of the straightener at least comprises a rail seat arranged on the lower bottom surface of the rail; the lower bottom surface of the rail seat is fixedly provided with more than one group of wedge blocks, each group of wedge blocks consists of a left upper wedge block and a right upper wedge block, and the wedge surface of the left upper wedge block and the wedge surface of the right upper wedge block form an inverted V-shaped surface; the left upper wedge block and the right upper wedge block are symmetrically arranged along the center line of the rail seat;
a steel plate is arranged below the left upper wedge block and the right upper wedge block correspondingly, a left lower wedge block which is obliquely opposite to the left upper wedge block is arranged on the upper surface of the steel plate correspondingly, and a right lower wedge block which is obliquely opposite to the right upper wedge block is arranged correspondingly; the wedge surface of the left lower wedge block is contacted with the wedge surface of the left upper wedge block, and the wedge surface of the right lower wedge block is contacted with the wedge surface of the right upper wedge block;
the left side of the left lower wedge block and the right side of the right lower wedge block are respectively provided with a driving device for driving the left lower wedge block and the right lower wedge block to move.
Further, the driving device is a swinging oil cylinder.
In order to achieve the above purpose, the elevation adjustment method of the roll changing track of the straightener comprises the following steps:
firstly, driving a piston rod of a swing hydraulic cylinder on the left side of a track seat central line to extend out and adjust to a middle stroke position, secondly, driving a piston rod of a swing hydraulic cylinder on the right side of the track seat central line to extend out and adjust to a middle stroke position, wherein at the moment, a wedge surface of a left lower wedge block positioned below the left side of an A side track seat central line is contacted with a wedge surface of a corresponding left upper wedge block, so that the elevation of the upper surface of a track, namely a wear-resisting plate, is close to a reference installation elevation;
the levelness of the wear-resistant plate is measured through a level meter, a numerical value is recorded, and then the piston rod of the swing hydraulic cylinder on the right side of the center line of the driving rail seat is simultaneously or independently extended (retracted) to adjust the horizontal elevation of the wear-resistant plate, reach an installation reference value, and the numerical value is recorded.
The method of the invention can greatly save cost, improve the service efficiency of the wear-resistant plate, reduce the replacement frequency and is convenient and simple to maintain.
Detailed Description
The invention is further described below with reference to the drawings.
Example 1
As shown in fig. 1-2, the method for reducing the replacement frequency and elevation adjustment of the roll changing track of the straightener comprises an oil cylinder tailstock 1, a swinging oil cylinder 2, a guide seat 3, a guide rod 5, a rail seat 4, a left lower wedge block 6, a right lower wedge block 7 and a wear-resisting plate 8.
Example 2
On the basis of the embodiment, the lower bottom surface of the rail seat 4 positioned at the side A is fixedly provided with 5 groups of wedge blocks, each group of wedge blocks consists of an upper left wedge block and an upper right wedge block, the wedge surface of the upper left wedge block and the wedge surface of the upper right wedge block form a V-shaped surface, the upper left wedge block and the upper right wedge block are symmetrically arranged along the central line of the rail seat 4, 5 groups of steel plates are pre-embedded under the rail seat 4 positioned at the side A, the upper surface of each group of steel plates is provided with 5 groups of wedge blocks, each group of wedge blocks consists of a lower left wedge block 6 and a lower right wedge block 7, the composition of each group is completely consistent, taking one group as an illustration of the composition, one end of the lower left wedge block 6 positioned at the left side of the central line of the rail seat 4 is fixed with one end of the guide rod 5 positioned at the left side of the central line of the rail seat 4, the wedge surface of the lower left wedge block 6 positioned at the left side of the central line of the rail seat 4 is contacted with the wedge surface of the corresponding upper left wedge block, the opposite surface of the wedge surface of the left lower wedge block 6 is contacted with the upper surface of the embedded steel plate, the other end of the guide rod 5 penetrating through the guide sleeve is connected with one end of the swing cylinder 2 positioned at the left side of the center line of the rail seat 4, the guide sleeve is fixed on the embedded steel plate, the tail part of the swing cylinder 2 positioned at the left side of the center line of the rail seat 4 is hinged on the cylinder tail seat 1 positioned at the left side of the center line of the rail seat 4, the cylinder tail seat 1 positioned at the left side of the center line of the rail seat 4 is fixed on the civil engineering foundation, one end of the right lower wedge block 7 positioned at the right side of the center line of the rail seat 4 is fixed with one end of the guide rod 5 positioned at the right side of the center line of the rail seat 4, the wedge surface of the right lower wedge block 7 positioned at the right side of the center line of the rail seat 4 is contacted with the corresponding wedge surface of the right upper wedge block, the opposite surface of the wedge surface of the right lower wedge block 7 is contacted with the upper surface of the embedded steel plate, the other end of the guide rod 5 penetrating through the guide sleeve is connected with one end of the swing cylinder 2 positioned at the right side of the center line of the rail seat 4, the guide sleeve is fixed on the pre-buried steel plate, the tail part of the swing oil cylinder 2 positioned on the right side of the center line of the rail seat 4 is hinged on the oil cylinder tail seat 1 positioned on the right side of the center line of the rail seat 4, the oil cylinder tail seat 1 positioned on the right side of the center line of the rail seat 4 is fixed on the civil engineering foundation, the wear-resisting plate 8 positioned on the side A is fixed on the rail seat 4 positioned on the side A, as shown in figure 1, and the connection of the other four groups of wedge blocks is as shown in figure 2.
Example 3
On the basis of the embodiment, the lower bottom surface of the rail seat 4 positioned at the side B is fixedly provided with 5 groups of wedge blocks, each group of wedge blocks consists of an upper left wedge block and an upper right wedge block, the wedge surface of the upper left wedge block and the wedge surface of the upper right wedge block form a V-shaped surface, the upper left wedge block and the upper right wedge block are symmetrically arranged along the central line of the rail seat 4, 5 groups of steel plates are pre-embedded under the rail seat 4 positioned at the side B, the upper surface of each group of steel plates is provided with 5 groups of wedge blocks, each group of wedge blocks consists of a lower left wedge block 6 and a lower right wedge block 7, the composition of each group is completely consistent, taking one group as an illustration of the composition, one end of the lower left wedge block 6 positioned at the left side of the central line of the rail seat 4 is fixed with one end of the guide rod 5 positioned at the left side of the central line of the rail seat 4, the wedge surface of the lower left wedge block 6 positioned at the left side of the central line of the rail seat 4 is contacted with the wedge surface of the corresponding upper left wedge block, the opposite surface of the wedge surface of the left lower wedge block 6 is contacted with the upper surface of the embedded steel plate, the other end of the guide rod 5 penetrating through the guide sleeve is connected with one end of the swing cylinder 2 positioned at the left side of the center line of the rail seat 4, the guide sleeve is fixed on the embedded steel plate, the tail part of the swing cylinder 2 positioned at the left side of the center line of the rail seat 4 is hinged on the cylinder tail seat 1 positioned at the left side of the center line of the rail seat 4, the cylinder tail seat 1 positioned at the left side of the center line of the rail seat 4 is fixed on the civil engineering foundation, one end of the right lower wedge block 7 positioned at the right side of the center line of the rail seat 4 is fixed with one end of the guide rod 5 positioned at the right side of the center line of the rail seat 4, the wedge surface of the right lower wedge block 7 positioned at the right side of the center line of the rail seat 4 is contacted with the corresponding wedge surface of the right upper wedge block, the opposite surface of the wedge surface of the right lower wedge block 7 is contacted with the upper surface of the embedded steel plate, the other end of the guide rod 5 penetrating through the guide sleeve is connected with one end of the swing cylinder 2 positioned at the right side of the center line of the rail seat 4, the guide sleeve is fixed on the pre-buried steel plate, the tail part of the swing oil cylinder 2 positioned on the right side of the center line of the rail seat 4 is hinged on the oil cylinder tail seat 1 positioned on the right side of the center line of the rail seat 4, the oil cylinder tail seat 1 positioned on the right side of the center line of the rail seat 4 is fixed on the civil engineering foundation, the wear-resisting plate 8 positioned on the side B is fixed on the rail seat 4 positioned on the side B, as shown in figure 1, and the connection of the other four groups of wedge blocks is as shown in figure 2.
Example 4
On the basis of the above embodiment, the whole elevation adjustment process is as follows: taking rail adjustment on the left side of the center line of the straightening housing as an example for the adjustment process, firstly driving piston rods of five groups of swing hydraulic cylinders on the left side of the center line of the rail seat 4 to extend out and adjust to a middle stroke position, secondly driving piston rods of five groups of swing hydraulic cylinders on the right side of the center line of the rail seat 4 to extend out and adjust to a middle stroke position, at the moment, the wedge surfaces of five groups of left lower wedges 6 on the left side of the center line of the side rail seat 4 are contacted with the wedge surfaces of five groups of left upper wedges corresponding to the wedge surfaces, so that the elevation of the upper surface of the rail, namely the elevation of the abrasion plate 8, approaches to a reference installation elevation, then measuring the levelness of the abrasion plate 8 through a level meter, recording a numerical value, then driving piston rods of five groups of swing hydraulic cylinders on the right side of the center line of the rail seat 4 to extend out simultaneously or independently (retract) to adjust the horizontal elevation of the abrasion plate 8, recording the numerical value, and adjusting the elevation of the abrasion plate 8 on the right side of the center line of the rail by the method until the elevation of the abrasion plate 8 on the rail on the right side of the center line of the side of the rail is consistent, so that the phenomenon that the elevation of the abrasion plate 8 on the rails on the two sides of the rail reaches to be consistent can be avoided, and the foundation bolt is clamped. When the straightening machine is used for a period of time, due to the influences of factors such as load impact and foundation settlement of civil engineering, uneven wear degree of the wear-resisting plates 8 on the two sides of the arch of the straightening machine is caused, uneven elevation is caused, and then the arch of the abrasion-resisting plates 8 can be bitten by the arch of the straightening machine, the use unit of the straightening machine is often used for customizing the installation of the wear-resisting plates 8 again according to the thickness of the wear-resisting plates 8 measured on site, so that the maintenance cost is increased, if the adjustment method is adopted, the cost can be greatly reduced, the specific adjustment process is similar to the above process, the side with high wear is adjusted by taking the side with low wear as the reference, the side with low wear is adjusted by taking the side with low wear as the reference, and after the adjustment reaches the required elevation, the side with high wear is adjusted by taking the side with the side rail elevation with high wear as the reference.
The present invention is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be defined by the claims.