CN214719383U

CN214719383U - Locking device for bearing seat of lower guide disc of rolling mill

Info

Publication number: CN214719383U
Application number: CN202023288469.XU
Authority: CN
Inventors: 祝景旺
Original assignee: Dalipal Pipe Co
Current assignee: Dalipal Pipe Co
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-16
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to the technical field of auxiliary structures of rolling mills, in particular to a locking device of a bearing seat of a lower guide disc of a rolling mill; the lower guide plate frame is provided with a bearing seat for mounting a lower guide plate, and comprises two groups of locking oil cylinders and two groups of locking blocks, the left upper end surface and the right upper end surface of the bearing seat are both provided with pressing blocks, the top of each pressing block is provided with a horizontal pressing surface, the bottom ends of the two groups of locking blocks are rotatably connected with the lower guide plate frame, the end parts of the two groups of locking oil cylinders can be rotatably mounted on the lower guide plate frame, the output ends of the two groups of locking oil cylinders are both provided with piston rods, the end parts of the two groups of piston rods are respectively hinged with the top ends of the two groups of locking blocks, and one opposite sides of the two groups of locking blocks are both provided with special-shaped pressing tongues; the locking effect of the lower guide disc bearing seat is improved, the condition that the guide disc is broken is relieved to a great extent, the guide disc replacement time is shortened, the service life of equipment is prolonged, and the quality of the surface of a produced steel pipe is guaranteed.

Description

Locking device for bearing seat of lower guide disc of rolling mill

Technical Field

The utility model relates to a technical field of rolling mill additional structure especially relates to a rolling mill is closing device of guide disc bearing frame down.

Background

As is well known, in the rolling mill production process, in order to improve the stability of lower guide plate, need lock the bearing frame of lower guide plate, lock the bearing frame of lower guide plate at present and drive the bearing frame briquetting of arc latch segment offside below through the locking hydro-cylinder and extrude, accomplish the locking to the bearing frame of lower guide plate, the range of beating of lower guide plate bearing frame is 0.9mm when on-the-spot production with percentage table detection, locking effect is relatively poor, lower guide plate also produces certain beat and collides with on the roll easily, produce and collapse the limit, influence the life of equipment and the quality on steel pipe surface, lead to the practicality lower.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an improve the locking effect to the lower guide plate bearing frame, to a great extent has alleviated the condition that the guide plate collapses the limit, reduces the guide plate change time, and the life of extension equipment ensures the quality on production steel pipe surface, improves the rolling mill lower guide plate bearing frame locking device of practicality.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a guide plate bearing frame locking device under rolling mill, installs on lower guide plate frame, is provided with the bearing frame that is used for installing guide plate under on the lower guide plate frame, includes two sets of locking hydro-cylinders and two sets of latch segments, the upper left end face and the upper right end face of bearing frame all are provided with the briquetting, the top of briquetting is provided with the level and compresses tightly the face, the bottom of two sets of latch segments all with lower guide plate frame rotatable coupling, the tip of two sets of locking hydro-cylinders all can rotate to be installed under on guide plate frame, the output of two sets of locking hydro-cylinders all is provided with the piston rod, and is two sets of the tip of piston rod is articulated with the top of two sets of latch segments respectively to all be provided with special-shaped pressure tongue in the relative one side of two sets of latch segments, the bottom of special-shaped pressure tongue is pasted tightly with the level of briquetting and is compressed tightly.

Preferably, the bottom of the special-shaped tongue depressor is provided with a yielding groove.

Preferably, the bottom of the special-shaped pressure tongue is an arc-shaped surface, and the arc-shaped surface is tightly attached to the top of the horizontal pressing surface.

(III) advantageous effects

Compared with the prior art, the utility model provides a guide plate bearing frame locking device under rolling mill possesses following beneficial effect: this locking device of guide plate bearing frame under rolling mill drives the top of latch segment through the locking hydro-cylinder for the inboard dysmorphism of latch segment is pressed the face and is pasted tightly with the level of briquetting, adopts perpendicular malleation form locking downwards between dysmorphism pressure tongue and the briquetting, realizes the reliable locking to the bearing frame, has effectively alleviated the phenomenon that the guide plate bursts at the limit, has prolonged the time interval of changing the guide plate, saves the cost, has ensured the life of equipment, has improved the quality on steel pipe surface.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of a part of an enlarged structure at a in fig. 1 according to the present invention;

fig. 3 is a schematic top view of the present invention;

in the drawings, the reference numbers: 1. a lower guide plate rack; 2. a bearing seat; 3. locking the oil cylinder; 4. a locking block; 5. briquetting; 6. a horizontal compression surface; 7. a piston rod; 8. pressing the tongue in a special shape; 9. a yielding groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the locking device for the bearing seat of the lower guide disc of the rolling mill of the present invention is installed on the lower guide disc frame 1, the lower guide disc frame 1 is provided with the bearing seat 2 for installing the lower guide disc, which comprises two sets of locking cylinders 3 and two sets of locking blocks 4, the left upper end surface and the right upper end surface of the bearing seat 2 are both provided with a pressing block 5, the top of the pressing block 5 is provided with a horizontal pressing surface 6, the bottom ends of the two groups of locking blocks 4 are rotatably connected with the lower guide disc frame 1, the end parts of the two groups of locking oil cylinders 3 can be rotatably arranged on the lower guide disc frame 1, the output ends of the two groups of locking oil cylinders 3 are respectively provided with a piston rod 7, the end parts of the two groups of piston rods 7 are respectively hinged with the top ends of the two groups of locking blocks 4, the opposite sides of the two groups of locking blocks 4 are provided with special-shaped pressure tongues 8, and the bottom ends of the special-shaped pressure tongues 8 are tightly attached to the horizontal pressing surface 6 of the pressing block 5; the bottom of the special-shaped pressure tongue 8 is provided with a yielding groove 9, the size requirements of guide discs with different eccentricities can be met through the yielding groove 9, the bottom of the special-shaped pressure tongue 8 is an arc-shaped surface, the arc-shaped surface is tightly attached to the top of the horizontal pressing surface 6, and the pressure between the special-shaped pressure tongue 8 and the horizontal pressing surface 6 of the pressing block 5 is ensured to be in the vertical direction.

When the locking device is used, the locking oil cylinder 3 drives the top of the locking block 4, the special-shaped pressing tongue 8 on the inner side of the locking block 4 is tightly attached to the horizontal pressing surface 6 of the pressing block 5, the special-shaped pressing tongue 8 and the pressing block 5 are locked in a vertical downward positive pressure mode, the bearing seat 2 is reliably locked, the phenomenon that the guide disc is broken is effectively relieved, the time interval for replacing the guide disc is prolonged, the cost is saved, the service life of the device is guaranteed, and the quality of the surface of a steel pipe is improved.

Example (b): the original bearing locking device is adopted before transformation in our factory, a dial indicator is adopted on site to detect that a bearing seat jumps by 0.9mm when in production, 18907.251 tons of steel pipes are produced in 11 months in 2019, 113 guide discs are consumed, 59.76 guide discs are consumed in ten thousand tons on average, the improved bearing locking device is adopted in 12 months in 2019, the bearing seat jumps by 0.3mm when in production, 18199.037 tons of steel pipes are produced, 76 guide discs are consumed, 41.76 guide discs are consumed in ten thousand tons on average, 18 guide discs are saved in ten thousand tons, the market price of each guide disc is 2500 yuan, 4.5 ten thousand yuan can be saved in ten thousand tons, and the time for replacing a guide disc tool and a die (calculated according to 20 minutes each time) can be reduced by 18 × 20-360 minutes.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A locking device for a bearing seat of a lower guide disc of a rolling mill is arranged on a lower guide disc frame (1), a bearing seat (2) for mounting the lower guide disc is arranged on the lower guide disc frame (1), and the locking device is characterized by comprising two groups of locking oil cylinders (3) and two groups of locking blocks (4), wherein pressing blocks (5) are arranged on the left upper end surface and the right upper end surface of the bearing seat (2), a horizontal pressing surface (6) is arranged at the top of the pressing block (5), the bottom ends of the two groups of locking blocks (4) are rotatably connected with the lower guide disc frame (1), the end parts of the two groups of locking oil cylinders (3) can be rotatably arranged on the lower guide disc frame (1), piston rods (7) are arranged at the output ends of the two groups of locking oil cylinders (3), the end parts of the two groups of piston rods (7) are respectively hinged with the top ends of the two groups of locking blocks (4), and pressing tongues (8) are arranged on the opposite sides of the two groups of the locking blocks (4), the bottom end of the special-shaped pressure tongue (8) is tightly attached to the horizontal pressing surface (6) of the pressing block (5).

2. The rolling mill lower guide disc bearing block locking device according to claim 1, characterized in that the bottom of the special-shaped pressure tongue (8) is provided with a yielding groove (9).

3. The rolling mill lower guide disc bearing block locking device is characterized in that the bottom of the special-shaped pressure tongue (8) is an arc-shaped surface, and the arc-shaped surface is attached to the top of the horizontal pressing surface (6).