CN203991687U - The guide and guards reversing for controlling the tapping of special-shaped section rail - Google Patents

Abstract

The utility model discloses a rail production component, in particular a guide device for controlling the tapping twist of a rail with a special-shaped section. The utility model provides a guide device for reducing the impact of rails and used for controlling the twisting of steel rails with special-shaped cross-sections. The block can be detachably installed on the installation site; the bottom of the front end of the guard board body is arc-shaped. Since the bottom of the front end of the guard board body is in the shape of a large arc, the contact between the guard board body and the rail is transitioned to prevent the leg height fluctuation from damaging the guard board body. At the same time, a detachable movable block of the guard board is adopted, so after the guard board is worn out, only the movable block of the guard board needs to be replaced; and the movable block of the guard board has a symmetrical structure up and down, so it can be replaced by the other side after one side is worn out. This not only solves the replacement process, but also doubles the service life of the movable block of the guard board, effectively reducing costs.

Description

A guide device for controlling the tapping torsion of a special-shaped cross-section rail

technical field

The utility model relates to a rail production part, in particular to a guide device for controlling the tapping twist of a rail with a special-shaped section.

Background technique

Due to the asymmetric cross-section, the rails with special-shaped cross-sections are produced by rectangular continuous casting slabs, and there must be uneven deformation during the rolling process. Since the length of the rolled piece in the blanking mill area is short and has little influence on the finished product size, the uneven deformation is concentrated in the blanking mill area to digest in the process design. The existence of uneven deformation will cause the steel torsion, bending, etc. in the area of the billet rolling mill. In order to solve the problem of steel tapping in the billet rolling mill area, tap rolling is usually used to thermally straighten or regularize the rolled piece, that is, in the same pass. Two or more passes of rolling are carried out, and the reduction is given in the second and subsequent passes. The main impacts of tap rolling are as follows: first, it affects product quality, forming rolling scar defects, etc.; second, it affects production efficiency. Due to the use of tap rolling, the rolling rhythm of this stand is longer; Rolling temperature, resulting in torsion of steel in the subsequent process, increased wear and so on. The torsion problem cannot be solved through process optimization and improvement. After on-site analysis and exploration, the tapping torsion problem can be solved by adding the upper guard plate.

However, the guard board will encounter the following problems in actual use. In actual production, due to the fluctuation of the leg height, the bottom of the current guard board is flat, and the bottom of the guard board is in contact with the rail for a long time, so it is easy to fluctuate in the height of the leg. damaged by impact.

Utility model content

The technical problem to be solved by the utility model is to provide a guide and guard device for controlling the tapping twist of the special-shaped cross-section rail and reducing the impact of the rail.

The utility model solves the technical problem and adopts the guide device for controlling the tapping and twisting of the special-shaped cross-section rail, including the guard board body and the guard board movable block, and the guide guard side of the guard board body is provided with an installation part. The movable block of the sanitary board is detachably installed on the installation site; the bottom of the front end of the sanitary board body is arc-shaped.

Further, the radius of the arc at the bottom of the front end of the guard board body is 500-1000 mm.

Further, the movable block of the guard board has a symmetrical structure up and down, that is, the movable block of the guard board has guide and guard parts on the upper and lower sides.

Further, it also includes connecting bolts, bolt holes are arranged on the installation part, and oval holes corresponding to the bolt holes are arranged on the movable block of the guard plate, the long axis direction of the oval holes is parallel to the up and down direction, The connecting bolt passes through the oval hole and the bolt hole to fix the movable block of the guard board on the guard board body.

Further, it also includes a spacer, the installation part is a mounting groove, the movable block of the sanitary board is installed in the mounting groove, the spacer is arranged in the mounting groove and is located between the upper part of the movable block of the sanitary board and the top of the mounting groove between.

Further, the movable block of the guard board is made of wear-resistant cast iron, and the body of the guard board is made of cast steel.

The beneficial effect of the utility model is: because the bottom of the front end of the guard board body is in the shape of a large arc, the contact between the guard board body and the rail is transitioned, and the leg height fluctuations are prevented from damaging the guard board body. At the same time, the detachable movable block of the guard board is adopted, so after the guard board is worn out, only the movable block of the guard board needs to be replaced; and the movable block of the guard board has a symmetrical structure up and down, so it can be replaced by the other side after one side is worn out. This not only solves the replacement process, but also doubles the service life of the movable block of the guard board, effectively reducing costs. An elliptical hole can be set on the movable block of the guard board, and the up and down position of the movable block of the guard board can be adjusted by cooperating with the cushion block, so that after the movable block of the guard board is worn, the pad block can be added to prolong the use of the movable block of the guard board.

Description of drawings

Fig. 1 is the schematic diagram of the utility model;

Fig. 2 is a schematic diagram of the guard plate body;

Fig. 3 is the schematic diagram of guard plate movable block;

Parts, parts and numbers in the figure: guard board body 1, guard board movable block 2, installation part 3, bolt hole 4, oval hole 5, spacer 6.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1, the utility model includes a guard board body 1 and a guard board movable block 2, the guide guard side of the guard board body 1 is provided with an installation site 3, and the guard board movable block 2 is detachably installed at the installation site 3; the bottom of the front end of the guard board body 1 is arc-shaped. The bottom surface of the guide device is the working surface, and the height of the working surface of the guard plate is designed to be equal to or lower than the leg height of the rail. The radius R of the arc at the bottom of the front end of the guard body 1 is 500-1000 mm, for example 700 mm. After adopting the large circular arc structure, the rail gradually moves and moves along the circular arc, and finally breaks away from the contact with the guide device, so that the contact between the rail and the guide rail device can be transitioned, thereby reducing the impact of the rail on the working surface, especially It is the front end of the guard board body 1. The front end of the guard board body 1 is the end where the rail leaves the guide device.

The guide device includes a guard board body 1 and a guard board movable block 2, the guide guard side of the guard board body 1 is provided with a mounting part 3, and the guard board movable block 2 is detachably installed on the mounting part 3, the The movable block 2 of the guard board is a symmetrical structure up and down, that is, the movable block 2 of the guard board has guide guard parts up and down. The guide side is the side that cooperates with the rail, and the installation part 3 is mainly used for installing the movable block 2 of the guard board, which is generally set as an installation groove, which is convenient for quickly positioning and installing the movable block 2 of the guard board. The movable block 2 of the guard board is preferably a symmetrical shape up and down, and the shape shown in the recommended bitmap 3 is recommended. The up and down direction refers to the up and down of the rail. The movable block 2 of the sanitary board can be installed on the main body 1 of the sanitary board by buckling. When in use, the movable block 2 of the guard board is fixed to the guard board body 1 to form a guard board, and the guard board is installed on the machine. When the guard board movable block 2 is worn out after long-term use, the guard board movable block 2 can be quickly disassembled, and the guard board movable block 2 can be reinstalled on the guard board body 1 upside down. At this time, the guard board movable block 2 can quickly resume operation . This can not only replace the movable block 2 of the guard board quickly, but also prolong the service life of the movable block 2 of the guard board by one time.

In order to adjust the height of the guard plate movable block 2, as shown in Figures 2 and 3, it also includes connecting bolts, the mounting part 3 is provided with a bolt hole 4, and the guard plate movable block 2 is provided with a bolt hole 4 corresponding to the bolt hole 4. Corresponding to the elliptical hole 5 , the long axis direction of the elliptical hole 5 is parallel to the up-down direction, and the connecting bolts pass through the elliptical hole 5 and the bolt hole 4 to fix the guard plate movable block 2 on the guard plate body 1 . Two bolt holes 4 can be provided, and the elliptical hole 5 can also be replaced by a long hole. At this time, the relative position of the movable block 2 of the guard plate can be adjusted by using the elliptical hole 5. When a small part of the lower end of the movable block 2 of the guard plate is worn, The movable block 2 of the guard board can be moved downwards to avoid replacing or turning over the movable block 2 of the guard board.

In order to make the adjusted guard plate movable block 2 more stable, as shown in Figure 1, it also includes a spacer 6, the installation part 3 is an installation groove, and the guard plate movable block 2 is installed in the installation groove, and the pad The block 6 is arranged in the installation groove and is located between the upper part of the guard board movable block 2 and the top of the installation groove. The cushion block 6 can fix the movable block 2 of the guard board, and can prevent the movable block 2 of the guard board from sliding after adjustment. The spacer 6 can be provided with a plurality of different thicknesses, so that the height of the spacer 6 can be adjusted according to the situation.

Specifically, the movable block 2 of the guard board is made of wear-resistant cast iron to increase wear resistance, and the body of the guard board 1 is made of cast steel.

Claims (6)

1. The guide device for controlling the twisting of steel rails with special-shaped cross-sections is characterized in that: it includes a guard board body (1) and a guard board movable block (2), and the guide side of the guard board body (1) is provided with The installation part (3), the movable block (2) of the guard board is detachably mounted on the installation part (3); the bottom of the front end of the guard board body (1) is arc-shaped. 2. The guide device for controlling the tapping twist of a special-shaped cross-section rail according to claim 1, characterized in that: the radius R of the arc at the bottom of the front end of the guard plate body (1) is 500-1000mm. 3. The guide and guard device for controlling the tapping twist of special-shaped cross-section rails as claimed in claim 1, characterized in that: the movable block (2) of the guard plate is a symmetrical structure up and down, that is, the movable block (2) of the guard plate is up and down. All have guides. 4. The guide device for controlling the tapping twist of special-shaped cross-section rails as claimed in claim 3, characterized in that: it also includes connecting bolts, bolt holes (4) are provided on the installation site (3), and the An elliptical hole (5) corresponding to the bolt hole (4) is arranged on the movable block (2) of the guard board, the long axis direction of the elliptical hole (5) is parallel to the up and down direction, and the connecting bolt passes through the elliptical hole (5) and bolt holes (4) fix the guard board movable block (2) on the guard board body (1). 5. The guide device for controlling the tapping twist of special-shaped cross-section rails as claimed in claim 3, characterized in that: it also includes a spacer (6), the installation part (3) is an installation groove, and the guard plate The movable block (2) is installed in the installation groove, and the spacer (6) is arranged in the installation groove and is located between the upper part of the guard board movable block (2) and the top of the installation groove. 6. The guide device for controlling the tapping twist of special-shaped cross-section rails according to any one of claims 1 to 5, characterized in that: the movable block (2) of the guard plate is made of wear-resistant cast iron, and the The guard board body (1) is made of cast steel.