CN2366196Y

CN2366196Y - Device for positioning hot rolled steel bars with all their ends arranged in line on cooling bed

Info

Publication number: CN2366196Y
Application number: CN 99205478
Authority: CN
Inventors: 李春智; 郑津昌; 刘玉新; 刘华
Original assignee: Shougang Corp
Current assignee: Shougang Corp
Priority date: 1999-03-19
Filing date: 1999-03-19
Publication date: 2000-03-01
Anticipated expiration: 2009-03-19

Abstract

The utility model provides a device for positioning hot rolled steel bars with all ends arranged in a line on a cooling bed, which comprises rollers with ends arranged in a line, roll shafts with ends arranged in a line, end covers, rolling bearings, and a bearing base. The inside of the bearing base is provided with a water channel which can cover the rolling bearing, and the bottom of the bearing base is provided with a water inlet hole and a water outlet hole; the water inlet hole is communicated with the water outlet hole, and a movable buffering blocking plate is arranged on one end of the cooling bed. Under the condition of high environment temperature of the cooling bed, the device can straighten steel bars positioned on an upper cooling bed head to improve the scale rate and finished rate and relieve the labor intensity of workers.

Description

Hot-rolled round bar cold bed blunt device

The utility model relates to a kind of Hot-rolled round bar cold bed blunt device, is specially adapted to the high bar uniform equipment of cold bed environment temperature.

In the prior art, after reinforcing bar is sheared by flying shear, through cold bed on roller-way, the material toggling piece.Numerous factors such as the fluctuation of the variation of steel billet length, flying shear shear precision, cold-bed run-in table speed and material toggling piece control accuracy affect the stop place behind the cold bed on the reinforcing bar.Like this, cause head and the afterbody of reinforcing bar on cold bed uneven.After roller-way was sheared in the traversing arrival of cold bed, the head of reinforcing bar, afterbody were still joined inferior uneven, and reinforcing bar is after cold shears is sheared, and uneven reinforcing bar is sheared to be scrapped, and causes the waste of steel.The cold bed uniform equipment utilizes the transmission roller will go up the uneven reinforcing bar of cold bed head to become neat, and cold shears first cutter just can cut out the scale reinforcing bar like this, and what add the cold bed reinforcing bar rationally joins chi, and the scale rate and the lumber recovery of steel are improved a lot.Existing cold bed uniform equipment is applicable to that the cold bed environment temperature is lower, the situation that steel bending is less.

The purpose of this utility model provides a kind of Hot-rolled round bar cold bed blunt device, than under the condition with higher, makes the uneven bar of cold bed head become neat in the cold bed environment temperature, improves the scale rate and the lumber recovery of steel, alleviates labor strength simultaneously greatly.

The purpose of this utility model is achieved in that Hot-rolled round bar cold bed blunt device comprises flush roller 6, flush roll shaft 12, end cap 10, rolling bearing 11, bearing block 8, flush roller 6 is enclosed within on the flush roll shaft 12, rolling bearing 11 entangles flush roll shaft 12, bearing block 8 and end cap 10 are fixed rolling bearing 11, bearing block 8 is connected with base 14 usefulness bolts 16, it is characterized in that: have a water cavity 13 to surround rolling bearing 11 in the bearing block, bearing block 8 bottoms have inlet opening 15 and apopore 17, inlet opening 15 communicates with water cavity 13 with apopore 17, and buffering sideboard 3 is placed on an end of cold bed.

Buffering sideboard 3 is made up of base plate 19, guide post 21, gusset 22, guide pipe 23, riser 25, baffle plate 26 and buffering spring 27, earlier buffer spring 27 is enclosed within on the guide post 21, again guide pipe 23 is enclosed within on the guide post 21, guide post 21 passes from the hole of riser 25, with bolt 20 and pad 24 guide post is fixed between riser 25 and the baffle plate 26.

Use the utility model cold bed uniform equipment to make the uneven bar of cold bed head become neat, improve the scale rate and the lumber recovery of steel, alleviate labor strength simultaneously greatly in the cold bed environment temperature than under the condition with higher.

Fig. 1 is the structure block diagram of the utility model Hot-rolled round bar cold bed blunt device;

Fig. 2 is the flush roller of each root of the utility model Hot-rolled round bar cold bed blunt device and the schematic diagram of bearing block;

Fig. 3 is the profile of the bearing block of the utility model Hot-rolled round bar cold bed blunt device along the A-A face;

Fig. 4 is the structural representation of buffering activity guide plate.

The utility model is described in more detail below in conjunction with embodiment: as shown in Figure 1: through temperature after the hot rolling at 900～1000 ℃ steel by cold bed on the approach table 1, steel 2 heads behind the last cold bed are uneven, generally about 3～10 meters, the movable tooth bar of cold bed laterally moves the other end step-by-step movement of steel 2 to cold bed steel 2 head distance differences.Flush roller is contained in the centre position on the cold bed width, along can adorning 60～120 flush rollers on the cold bed length, and lines up a line, and these flush rollers drive steel jointly and advance.As Fig. 2, every flush roller shown in Figure 3 is independent transmission, drive flush roll shaft 12 transmissions by motor, decelerator and chain, flush roller 6 is enclosed within on the flush roll shaft 12, flush roll shaft 12 drives flush roller 6 transmissions, rolling bearing 11 is fixed the two ends of flush roll shaft 12, bearing block 8 and end cap 10 are fixed rolling bearing 11, and bearing block 8 is connected with base 14 usefulness bolts 16.When the movable tooth bar of cold bed steel are traversing in flush roller 6 first passes, this moment, the steel temperature was cooled to 400～450 ℃, the environment temperature of flush roller 6 is at 260 ℃～300 ℃, bearing block 8 outer ends apart from high temperature steel 50mm about, steel move on on the flush roller 6, through convection current radiation conduction, temperature is passed to bearing block and rolling bearing 11, in addition, bearing rotates and also produces heat, bearing temperature is constantly heated up, surpass 200 ℃, in order to reduce temperature, in bearing block, design a water cavity 13 and surrounded rolling bearing 11, recirculated water enters water cavity 13 by water inlet pipe 7 and inlet opening 15, and enters next bearing block by apopore 17 and outlet pipe 18, realizes the continuous circulation of water.Recirculated water is constantly taken away heat, makes the temperature of rolling bearing 11 be lower than 70 ℃, thereby has improved rolling bearing life.The rotational line speed of flush roller is 0.1～0.7 meter per second, rotation along with flush roller, flush roller 6 drives steel in the passes to the flush buffering sideboard direction segment distance that advances, the steel specification is different with flush roller rotating speed, the distance that steel advance in each pass is also different, and traversing in second pass of flush roller the time when steel 2, a segment distance advances again, the rest may be inferred, and steel constantly advance to the buffering sideboard.The buffering sideboard is made up of base plate 19, nut 20, guide post 21, gusset 22, guide pipe 23, pad 24, riser 25, baffle plate 26 and buffering spring 27, earlier buffer spring 27 is enclosed within on the guide post 21, again guide pipe 23 is enclosed within on the guide post 21, guide post 21 passes from the hole of riser 25, with bolt 20 and pad 24 guide post is fixed between riser 25 and the baffle plate 26.When steel hit baffle plate 26 with certain speed, the compression spring has played cushioning effect, avoided steel to play cover, and baffle plate makes the uneven steel of head 2 become the neat steel of head 5, steel are delivered to cutter through runout table 4 and are sheared, it is neat that invar material head becomes, so cold shears first cutter just can cut out linear products, the scale rate and the lumber recovery of steel have been improved, and the service life of this uniform equipment improve greatly, improve more than the twice than the uniform equipment that does not have water-cooled, alleviate labor strength simultaneously.

This device can be used for cross-arranging type, semicontinuous and continous way bar steel rolling factory, and small investment is simple in structure, safe and reliable.

Claims

1, a kind of Hot-rolled round bar cold bed blunt device, comprise flush roller (6), flush roll shaft (12), end cap (10), rolling bearing (11), bearing block (8), flush roller (6) is enclosed within on the flush roll shaft (12), rolling bearing (11) entangles flush roll shaft (12), bearing block (8) and end cap (10) are fixed rolling bearing (11), bearing block (8) is connected with bolt (16) with base (14), it is characterized in that: have a water cavity (13) to surround rolling bearing (11) in the bearing block, bearing block (8) bottom has inlet opening (15) and apopore (17), inlet opening (15) communicates with water cavity (13) with apopore (17), and buffering sideboard (3) is placed on an end of cold bed.

2, Hot-rolled round bar cold bed blunt device as claimed in claim 1, it is characterized in that: buffering sideboard (3) has base plate (19), guide post (21), gusset (22), guide pipe (23), riser (25), baffle plate (26) and buffering spring (27) to form, earlier buffer spring (27) is enclosed within on the guide post (21), again guide pipe (23) is enclosed within on the guide post (21), guide post (21) passes from the hole of riser (25), with bolt (20) and pad (24) guide post is fixed between riser (25) and the baffle plate (26).