CN203158735U

CN203158735U - Novel water-cooling delivery roll

Info

Publication number: CN203158735U
Application number: CN 201320132050
Authority: CN
Inventors: 张飞
Original assignee: Wuhan Iron and Steel Group Corp
Current assignee: Wuhan Iron and Steel Co Ltd
Priority date: 2013-03-22
Filing date: 2013-03-22
Publication date: 2013-08-28
Anticipated expiration: 2023-03-22

Abstract

The utility model discloses a novel water-cooling delivery roll for a metallurgical industry high-temperature area roll bed. The novel water-cooling delivery roll aims to solve the problem that an existing delivery roll is poor in dynamic balance and high in fault rate when the roll rotates at a high rotating speed. The novel water-cooling delivery roll is mainly composed of a hollow roll body, roll necks arranged at two ends of the hollow roll body and bearing seats, wherein each bearing seat is sleeved on one roll neck. A water inlet pipe extends into the hollow roll body from one end along the central line of the delivery roll, backwater is discharged from a backwater hole after passing through roll neck water channels, an airtight barrel is arranged inside the hollow roll body, the periphery of the airtight barrel is welded to the inner wall of the hollow roll body through supporting foots, the water inlet pipe penetrates through the airtight barrel along a mandrel to be tightly welded to two end faces of the airtight barrel, cooling water enters one side of the inner portion of the hollow roll body from the other side of the hollow roll body through the water inlet pipe, and the cooling water flows back and is discharged from the backwater hole after passing through interlayer space between the airtight barrel and the hollow roll body. Due to the facts that the amount of the cooling water flowing inside the delivery roll is little and distribution of the cooling water is even, influence on the dynamic balance of the roller which rotates at a high speed is small. Therefore, smooth running of the delivery roller can be guaranteed.

Description

Novel water-cooled conveying roller

Technical field

The utility model relates to a kind of metallurgy industry high-temperature zone roller-way with novel water-cooled conveying roller.

Background technology

At continuous casting and hot rolling mill, all can use roller-way to carry slab or strip, because slab or board temperature height cause the conveying roller bearing easily stuck, thus all can adopt water-cooling pattern that conveying roller is cooled, to improve the service life of conveying roller bearing.Generally adopt external cooling now, namely on roller-way top or the bottom cooling manifold is installed, conveying roller is sprayed; Also there is the part roller-way to use inner cooling, i.e. pipe arrangement on conveying roller, make water outer circulation in conveying roller reach the purpose of the cooling body of roll, but cold roller design is to make water be full of conveying roller inside in existing, the deviation of gravity center that easily causes conveying roller when the conveying roller rotating speed is higher owing to the disturbance of water, kinetic balance is poor, and fault rate is higher.

Summary of the invention

The purpose of this utility model is to overcome the prior art defective, provides a kind of balance good novel water-cooled conveying roller.

The technical solution of the utility model is achieved in that novel water-cooled conveying roller, mainly by the hollow body of roll, the roll neck at hollow body of roll two and the bearing seat that is enclosed within on the roll neck are formed, coolant inlet pipe stretches into hollow body of roll inside from an end along the conveying roller line of centers, discharged by backwater hole behind the backwater process roll neck water channel, it is, be provided with airtight cylinder in hollow body of roll inside, airtight cylinder periphery is by leg and the welding of hollow body of roll inwall, coolant inlet pipe runs through airtight cylinder and closely welds with the both ends of the surface of airtight cylinder along the axle core, cooling water expansion tank enters the opposite side of hollow body of roll inside from the hollow body of roll one side by coolant inlet pipe, discharges by backwater hole by airtight cylinder and the mezzanine space backflow between the hollow body of roll again.

It is that the spacing between airtight cylinder and the hollow body of roll inwall is 10-20mm.

The utility model is because the cooling water inflow that flows in conveying roller is little and distribution is even relatively, and is little to the roller kinetic balance influence of high speed rotating, can guarantee the smooth operation of conveying roller, improves the service life of conveying roller and bearing, but also saved cooling water.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is that the A of Fig. 1 is to scheme drawing.

Among the figure, the hollow body of roll of 1-; The 2-roll neck; The 3-bearing seat; The 4-coolant inlet pipe; The 5-backwater hole; The airtight cylinder of 6-; The 7-leg.

The specific embodiment

Be further described below in conjunction with accompanying drawing:

As Fig. 1, shown in Figure 2, novel water-cooled conveying roller, mainly by the hollow body of roll 1, the roll neck 2 at the hollow body of roll 1 two and the bearing seat 3 that is enclosed within on the roll neck 2 are formed, coolant inlet pipe 4 stretches into the hollow body of roll 1 inside from an end along the conveying roller line of centers, discharged by backwater hole 5 behind backwater process roll neck 2 water channels, it is, be provided with airtight cylinder 6 in the hollow body of roll 1 inside, the airtight cylinder 6 peripheral legs 7 that pass through weld with the hollow body of roll 1 inwall, coolant inlet pipe 4 edge axle cores run through airtight cylinder 6 and closely weld with the both ends of the surface of airtight cylinder 6, cooling water expansion tank enters the opposite side of the hollow body of roll 1 inside by coolant inlet pipe 4 from the hollow body of roll 1 one sides, reflux by the mezzanine space between airtight cylinder 6 and the hollow body of roll 1 and discharge by backwater hole 5, the spacing between airtight cylinder 6 and the hollow body of roll 1 inwall is 10-20mm.

Its sequence of erection is: earlier coolant inlet pipe 4, leg 7, airtight cylinder 6 are externally made welding and finished, leg 3 with airtight cylinder 6 is welded on the hollow body of roll 1 inwall then, and guarantee that the spacing between airtight cylinder 6 and the hollow body of roll 1 inwall is 10-20mm, back welded and installed roll neck 2, the installation shaft bearing 3 again, and with bearing cover and the welding of coolant inlet pipe 4 junctions.Cooling water expansion tank enters the opposite side of the hollow body of roll 1 inside from the hollow body of roll 1 one sides by coolant inlet pipe 4, refluxes by airtight cylinder 6 and mezzanine space between the hollow body of roll 1 and discharges by backwater hole 5, plays the purpose of cooling off the body of roll.Because the water yield that flows in conveying roller is little, little to the roller kinetic balance influence of high speed rotating, guaranteed the smooth operation of conveying roller.

Claims

1. novel water-cooled conveying roller, mainly by the hollow body of roll, the roll neck at hollow body of roll two and the bearing seat that is enclosed within on the roll neck are formed, coolant inlet pipe stretches into hollow body of roll inside from an end along the conveying roller line of centers, discharged by backwater hole behind the backwater process roll neck water channel, it is characterized in that: be provided with airtight cylinder in hollow body of roll inside, airtight cylinder periphery is by leg and the welding of hollow body of roll inwall, coolant inlet pipe runs through airtight cylinder and closely welds with the both ends of the surface of airtight cylinder along the axle core, cooling water expansion tank enters the opposite side of hollow body of roll inside from the hollow body of roll one side by coolant inlet pipe, discharges by backwater hole by airtight cylinder and the mezzanine space backflow between the hollow body of roll again.

2. novel water-cooled conveying roller according to claim 1, it is characterized in that: the spacing between airtight cylinder and the hollow body of roll inwall is 10-20mm.