CN1088138A - Roller-type water-cooled cooling bed - Google Patents
Roller-type water-cooled cooling bed Download PDFInfo
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- CN1088138A CN1088138A CN 92107852 CN92107852A CN1088138A CN 1088138 A CN1088138 A CN 1088138A CN 92107852 CN92107852 CN 92107852 CN 92107852 A CN92107852 A CN 92107852A CN 1088138 A CN1088138 A CN 1088138A
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Abstract
The invention belongs to the rolling of metal---static cooling bed technical field.The present invention does not stop production to transform on the basis of existing slide rail type cold bed to form.The present invention changes the conveying of steel plate on cold bed in rolling, the roller into by slip rolling bearing is housed, and solves rolling bearing lubrication problem at high temperature with water-cooling pattern.Thoroughly solve the problem of the steel plate transverse scratch of former slide rail type cold bed, in the life-span of having improved equipment simultaneously, reduced weight of equipment, manufacturing cost.
Description
The invention belongs to the rolling-static cooling bed field of metal.
Known to the applicant, middle plate cold bed is an auxiliary equipment on the middle board assembly line.Steel billet or steel ingot become the hair plates that temperature is 600～800 ℃ a heat behind heating, rolling, aligning, this hair plates need be cooled to about 200 ℃ after shearing finishing treatment process such as burr again and put ready for delivery in storage.The effect of middle plate cold bed is exactly on the production line about 600～800 ℃ hot steel plate to be transmitted, is being cooled to about 200 ℃.Domestic present middle plate cold bed is slide rail haul type cold bed mostly, and steel plate cools off on the rail table top, and steel-drawing machine is carried, and rail scratches serious to hot steel plate, and in recent years, each large and medium-sized iron and steel enterprise all classified the cold bed transformation as important brainstorm project.Through practice, consistent upper table surface cooling, the conveying of thinking that the roller cold bed is made up of a large amount of rolling elements on the same horizontal plane owing to hot steel plate is supported in do not have scuffing to steel plate, and it is to solve the effective way that steel plate scratches problem.In the academic annual meeting of nineteen ninety the 4th steel rolling, the rolling cold bed is listed in one of a collection of new technology of giving priority to.
The technological difficulties of roller cold bed are the temperature drop lubrication problems of the rolling element that relative motion is arranged under the baking of high temperature steel plate.The method that state's outer rolling cold bed solves this difficult problem has two kinds: a kind of is the rolling disk drive-type cold bed of West Germany, it becomes support roller to be arranged in the cold bed outside and below the relative motion partial design of rolling element, make it away from hot steel plate, and strengthen aeration-cooling, adopt grease centralized lubrication, the rolling disk of supporting hot steel plate is fixed on the major axis, and there is not friction in no relative motion between itself and major axis.Every major axis is installed two bogie wheels again, is bearing in respectively on two support rollers, and every major axis is with independent transmission mechanism transmission.The cold bed advantage of this kind form is the rolling disk reliable operation, unless the transmission mechanism fault is not stuckly changeed, the normal condition lower steel plate can not be scratched.Its shortcoming is that cost is too big, and weights of equipment such as major axis, rolling disk, transmission mechanism, concentrated drier oil station are big, the cost height, and installed capacity is big.Another kind is an air cooling roller carrier bar haul type cold bed.Its roller is passive, rolling bearing is housed in the roller, steel plate is supported on the roller and carries by the carrier bar hauling machine, for solving the temperature drop lubrication problem of rolling bearing in the roller, it is heat insulation between bearing and hot steel plate to have designed a kind of thick cover plate, and roller is done greatly, so that bearing is as far as possible away from hot steel plate, design the cold bed melt pit very dark simultaneously, to add the forced ventilation cooling.The advantage of this kind cold bed is the unidirectional transportation of carrier bar hauling machine, between every block plate is with the position that stops on carrier bar designs fix backstop thing, steel plate not overlapping the skewing that be in operation.Be characterized in cover plate, roller weight is big, melt pit is dark, equipment is huge, needs driving lifting roller, Maintenance and Repair inconvenience, the carrier bar pin is easily broken, the maintenance amount is big.These two kinds of cold beds are expensive many, and transforming needs to stop production, and all are not suitable for China's national situation.
Domestic some factory avoids the temperature drop lubrication problem of rolling element, develops a kind of sliding friction trundle steel cable haul type cold bed.The roller of supporting hot steel plate is passive, and steel plate is carried on roller by the steel cable hauling machine.Between roller and the little axle is sliding friction, owing to the temperature height can't lubricate, and have to dry friction.The advantage of this kind cold bed is roller very little (about ∮ 100mm), weight of equipment is extremely light, but rolling wheel wear is very fast, longest-lived is 1 year, the shortest is three months, and roller is normal does not stuckly change, and scratches steel plate or rolling wheel wear after-poppet and exposes table top and scratch the steel plate practice and show, avoid the temperature drop lubrication problem of rolling element, the cold bed transformation can be not successful.
The objective of the invention is: thoroughly solve steel plate transverse scratch problem, improve equipment life as far as possible simultaneously, reduce weight of equipment and manufacturing cost.
The present invention is design like this, adopts water to force the cooling roller, solves the lubrication problem of ball bearing in the roller.
Rolling wheel support is made box-shaped, with it as tank; Arm and water transfer valve are installed in each tank side; Be installed into water valve and discharging valve on the cooling water house steward; Adjutage feeds the rain gutter.
Below in conjunction with accompanying drawing, describe content of the present invention in detail.
Fig. 1 is roller-type water-cooled cooling bed partial top view.
The 1-1 roller, 1-2 rolling wheel support, 1-3 base, 1-4 water transfer valve, 1-5 water intaking valve, 1-6 discharging valve.
Fig. 2 is rolling wheel support (unit tank) side view
The 2-1 base, 2-2 roller, 2-3 support (tank), 2-4 cooling water pipe.
Per four rollers of this cold bed are installed in the rolling wheel support. Each rolling wheel support is designed to rectangular tank. The long 2220mm of tank, wide 120mm, high 250mm. It is one group that per 4 rollers (being each tank) are compiled. Cold bed length direction (steel plate throughput direction) roller spacing 500mm arranges 7 groups. Width spacing 500mm arranges 40 groups. Amount to 280 groups, roller is the arranged crosswise of 500mm * 500mm. Each tank side is communicated with a cooling water arm, and water adjusting valve is installed on the arm, and 280 water transfer valves are arranged altogether. Arm inserts the cooling water house steward, and total water intaking valve is housed on the house steward. Total water intaking valve back is installed a discharging valve again and is met the house steward that discharges water and passes into the ditch. (see figure 1).
For an embodiment: horse steel medium plate mill former rail table top cold bed is the slidingtype cold bed, because steel billet temperature height, easily produce transverse scratch during steel plate slides and carries on cold bed, so both influenced plate surface quality, influenced recovery rate of iron and other economic indicators again.The inventor investigates the pluses and minuses that compared domestic and international various cold beds.Few in fund, under the condition that transformation can not stop production, adopt steel cable to draw the cold bed of steel dry oil lubrication roller, water logging roller cooled.At the spray roller, the water-cooled axle is in three kinds of roller cooling schemes of tank cooling selected " tank cooling ".Rolling wheel support is made box-shaped, as tank, connect cooling water with it in support, roller rotates cooling during the steel plate operation in cooling water, only needs to replenish the cooling water that is evaporated and just can reach comparatively ideal cooling effect.Consider to roll thin specification steel plate, the watermark on the roller may cause steel plate wooden dipper song, and Draw off valve of design and installation makes the interior cooling water of whole tanks can be put dried in 10 minutes.Consider good heat dissipation effect, roller is made abdomen muscle structure, so both can make heat be delivered to the roller bearing place as few as possible, as much as possible cooling water is brought up the whole roller of cooling when roller is rotated.
By experimental study, final selected roller-type water-cooled cooling bed technical parameter is as follows:
1) cold bed length 22000mm
2) cold bed mesa width: 22500mm
3) the total load-bearing of stand upper steel plate: 33600kg
4) cold bed table top absolute altitude :+980mm
5) roller diameter: 400mm
6) spacing: 500 * 500mm arranged crosswise
7) bearing: 406
8) adjacent rollers elevation difference: ± 0.5mm
9) fit clearance: H
8/ d
8
10) lubricating grease: No. 2 roll bearing fat, No. 2 conticaster fat
11) type of cooling: tank cooling
12) lubricating system: drier oil is pouring-in
13) gross weight of equipment: 98000kg
In the mill, emphasis check rolling wheel support install the roller groove form and position tolerance (± 0.1mm), roller diameter ∮ 400 ± 0.1mm, wheel shaft square toes 20mm ± 0.1.Emphasis checks adjacent two roller elevation differences to be ± 0.5mm in installation, table top elevation difference 980 ± 2mm, and steel plate is by the rotating roller 80% in back.
Advantage of the present invention is:
Drive formula cold bed and the contrast of air cooling roller carrier bar haul type cold bed with rolling disk:
1, this cold bed roller reliable operation does not have scuffing to steel plate, and is suitable with above-mentioned two kinds of cold beds.
2, penetrate heat because cooling water absorbs a large amount of width of cloth, environment temperature is reduced, improved the steel plate cooling velocity, be better than above-mentioned two cold beds.
3, the roller life-span is suitable with air cooling carrier bar hauling machine cold bed.
4, weight of equipment light far beyond above-mentioned two cold beds, be about 2250 tons/thousand square metres, be 17% of Rolling Disc Cooling Bed, 26% of air cooling cold bed.
5, installed capacity is little, and about 100 kilowatts/thousand square metres is 24% of Rolling Disc Cooling Bed.
6, more above-mentioned two cold beds of equipment manufacturing cost are low, and this cold bed is ironcasting and structural member.And need not with big melt pit and centralized grease lubrication system.
7, roller is little, and is simple in structure, and maintenance is convenient, need not driving lifting roller.
8, the slidingtype cold bed is not transformed and need be stopped production, the transformation that must stop production of above-mentioned two kinds of cold beds.
Contrast with sliding friction trundle cold bed:
1, solves steel plate and scratched problem, solved the fail problem that thoroughly solves of trundle cold bed.
2, the roller life-span is more than 5 times of trundle cold bed.
3, weight of equipment is 1.5 times of trundle cold bed.
In sum, it is solution steel plate transverse scratch that middle plate cold bed changes roller into by slidingtype, the only way of improving the quality of products.The present invention utilizes the Equipment Foundations of former slidingtype cold bed, and base, crossbeam etc. utilize the installation of light maintenance substep, do not influence production, are applicable to the transformation of national slide rail cold bed, can save investment in technological upgrading more than 1.8 hundred million yuan.Both can adapt to plate cold bed transformation in all slidingtypes, also be applicable to new transformation of going up finishing line.
Claims (1)
1, a kind of roller type cold bed, the feature of its roller type of cooling and equipment is:
A, water are forced the bearing in the cooling roller.
B, rolling wheel support is made box-shaped, with it as tank; The water transfer valve is installed in each tank side; Be installed into water valve and discharging valve on the cooling water house steward; Adjutage feeds the ditch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92107852 CN1088138A (en) | 1992-12-15 | 1992-12-15 | Roller-type water-cooled cooling bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92107852 CN1088138A (en) | 1992-12-15 | 1992-12-15 | Roller-type water-cooled cooling bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1088138A true CN1088138A (en) | 1994-06-22 |
Family
ID=4943109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92107852 Pending CN1088138A (en) | 1992-12-15 | 1992-12-15 | Roller-type water-cooled cooling bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1088138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579787B (en) * | 2009-06-19 | 2011-01-05 | 天津赛瑞机器设备有限公司 | Manufacturing method of steel-rolling cooling bed roller-oriented support platform |
-
1992
- 1992-12-15 CN CN 92107852 patent/CN1088138A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579787B (en) * | 2009-06-19 | 2011-01-05 | 天津赛瑞机器设备有限公司 | Manufacturing method of steel-rolling cooling bed roller-oriented support platform |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |