A kind of cooling system of rolled aluminium alloy bar three-high mill
Technical field
The present invention relates to milling train field of cooling, more particularly, to a kind of cooling of rolled aluminium alloy bar three-high mill
System.
Background technology
Roll-force can be transmitted to rack-mounted bearing and gear, axis by roll during processing aluminium alloy rod
It holds larger with strength of gear, is easy to be damaged because cooling and lubricant effect is bad.Domestic three-high mill is in processing aluminium alloy
When bar, position, rack gear and axis are generally led to roll, inlet and outlet using the unseparated mode of grease respectively with single channel emulsion
Cooling and lubricating is held, this cooling and lubricating mode stress of gear and bearing in the smaller aluminium alloy of rolling deformation drag is smaller also
It can reach that design requirement damage frequency is not high, but when with higher temperature hot rolling non-deformability larger alloy, axis
Holding can bear very energetically with gear, simultaneously as the temperature of bearing and gear can be very high the reason of heat transfer and mechanical friction,
The cooling and lubricating effect of the heated High temperature emulsion bearing larger to stress and gear is bad under the requirement of technique, leads to axis
It holds and increases with the damage frequency of gear.
Invention content
In view of the foregoing drawbacks, it is an object of the invention to propose a kind of cooling system of rolled aluminium alloy bar three-high mill
System, it is possible to reduce the temperature drop degree of roll and blank, while ensureing the high-temp plastic of aluminium alloy, moreover it is possible to reduce three-high mill and exist
The damage frequency of bearing, gear when rolling the stronger aluminium alloy of non-deformability under high temperature.
For this purpose, the present invention uses following technical scheme:
A kind of cooling system of rolled aluminium alloy bar three-high mill;Including emulsion case, heating device, first emulsion circulating pump,
Second emulsion circulating pump, cooling device, the first valve and the second valve;
The heating device is arranged in the emulsion case;
The first emulsion circulating pump and the second emulsion circulating pump are connected to by pipeline with the emulsion case, first breast
The outflow port of liquid circulating pump is connected to by pipeline with first valve, is used in the outflow port and three-high mill of first valve
The pipeline connection of position is led to cool down and lubricate roll and inlet and outlet;
The outflow port of the second emulsion circulating pump is connected to by pipeline with the cooling device, the outflow port of the cooling device
Be connected to second valve by pipeline, in the outflow port and three-high mill of second valve be used for cooling and lubricating bearing and
The pipeline connection of gear.
Preferably, further include the first temperature sensor, second temperature sensor and temperature controller;
First temperature sensor is arranged in the emulsion case, and it connect with the temperature controller, the temperature control
Device processed is connect with the heating device;
The outflow port in the cooling device is arranged in the second temperature sensor, and it connect with the temperature controller;
Preferably, the also described heating device is the adjustable heating device of heating frequency.
Preferably, the also described first emulsion circulating pump and the second emulsion circulating pump are all the adjustable circulating pump of speed.
Preferably, also described first valve and the second valve are all flow control valve.
Preferably, also further include lotion collecting tank, the coolant liquid row in the three-high mill is arranged in the lotion collecting tank
The lower section of outlet.
Preferably, for the also described lotion collecting tank with filter device by pipeline connection, the outflow port of the filter device is logical
Pipeline is crossed to be connected to the emulsion case.
The present invention is cooled down and is lubricated using two-way emulsion:All the way emulsion in emulsion box the postcooling of heating and
Lubrication roll and inlet and outlet lead position, and another way emulsion cooling and lubricating bearing and gear, optimization after heat exchanger cooling exist
Cooling, lubricant effect in the case of grease is unseparated to bearing and gear.Three-high mill rolls non-deformability at high temperature
When stronger aluminium alloy, emulsion cooling and lubricating roll after heating, inlet and outlet lead position can reduce the temperature drop of roll and blank
Degree ensures the high-temp plastic of aluminium alloy, and bearing, gear can be promoted with emulsion after cooling cooling, lubrication bearing, gear
Cooling and lubricating effect reduce the damage of bearing, gear when three-high mill rolls the stronger aluminium alloy of non-deformability at high temperature
Frequency.
Description of the drawings
Fig. 1 is the structural schematic diagram of one embodiment of the present of invention.
Wherein:Emulsion case 1, heating device 2, first emulsion circulating pump 3, second emulsion circulating pump 4, cooling device 5, first
Valve 6, the second valve 7, the first temperature sensor 8, second temperature sensor 9, temperature controller 10, lotion collecting tank 11, mistake
Filter device 12, three-high mill 13.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, a kind of cooling system of rolled aluminium alloy bar three-high mill;Including emulsion case 1, heating device 2,
First emulsion circulating pump 3, second emulsion circulating pump 4, cooling device 5, the first valve 6 and the second valve 7;
The heating device 2 is arranged in the emulsion case 1;
The first emulsion circulating pump 3 and the second emulsion circulating pump 4 are connected to by pipeline with the emulsion case 1, and described
The outflow port of one lotion circulating pump 3 is connected to by pipeline with first valve 6, outflow port and three rollers of first valve 6
It is used for cooling down and lubricating roll in milling train 13 and inlet and outlet leads the pipeline connection of position;
The outflow port of the second emulsion circulating pump 4 is connected to by pipeline with the cooling device 5, and the cooling device 5 goes out
Head piece is connected to by pipeline with second valve 7, and the outflow port of second valve 7 is moistened with three-high mill 13 for cooling
The pipeline connection of plain besring and gear.
Heating device 5 in emulsion case 1 heats emulsion.First emulsion circulating pump 3 directly extracts breast
The roll and inlet and outlet that High temperature emulsion in liquid case 1 is come on cooling and lubricating three-high mill 13 to install lead position, emulsification flow quantity by
First valve 6 controls.High temperature emulsion in the directly extraction emulsion case 1 of second emulsion circulating pump 4, which is sent in cooling device 5, to be carried out
Cooling, lotion after cooling is sent to bearing and gear of 13 cooling and lubricating of three-high mill on milling train, emulsification by pipeline
Flow quantity is controlled by the second valve 7.
The present invention is cooled down and is lubricated using two-way emulsion:All the way emulsion in emulsion box the postcooling of heating and
Lubrication roll and inlet and outlet lead position, and another way emulsion cooling and lubricating bearing and gear, optimization after heat exchanger cooling exist
Cooling, lubricant effect in the case of grease is unseparated to bearing and gear.Three-high mill rolls non-deformability at high temperature
When stronger aluminium alloy, emulsion cooling and lubricating roll after heating, inlet and outlet lead position can reduce the temperature drop of roll and blank
Degree ensures the high-temp plastic of aluminium alloy, and bearing, gear can be promoted with emulsion after cooling cooling, lubrication bearing, gear
Cooling and lubricating effect reduce the damage of bearing, gear when three-high mill rolls the stronger aluminium alloy of non-deformability at high temperature
Frequency.
Further, further include the first temperature sensor 8, second temperature sensor 9 and temperature controller 10;
First temperature sensor 8 is arranged in the emulsion case 1, and it connect with the temperature controller 10, the temperature
Degree controller 10 is connect with the heating device 2;
The outflow port in the cooling device 5 is arranged in the second temperature sensor 9, and it connects with the temperature controller 10
It connects;
Heating device 2 in emulsion case 1 heats emulsion, and the first temperature sensor 8 is electrically connected to temperature control
Device 10 processed adjusts the power of heating device 2, to adjust temperature when emulsion in emulsion case 1 cycle.Second temperature passes
Sensor 9 is electrically connected temperature controller 12 and adapts to technologic different demands to adjust the cooling capacity of cooling device 5.
Preferably, the heating device 2 is the adjustable heating device of heating frequency.
Preferably, the first emulsion circulating pump 3 and the second emulsion circulating pump 4 are all the adjustable circulating pump of speed.
Preferably, first valve, 6 and second valve 7 is all flow control valve.
Further, further include lotion collecting tank 11, the cooling in the three-high mill is arranged in the lotion collecting tank 11
The lower section of liquid outlet.
Further, with filter device 12 by pipeline connection, the filter device 12 goes out the lotion collecting tank 11
Head piece is connected to by pipeline with the emulsion case 1.
Used emulsion is discharged from the coolant outlet of three-high mill 13, by mounted on 13 lower section of three-high mill
It after lotion collecting tank 11 is collected, and is recycled by being returned in emulsion case 1 after the filtering of filter device 11, has saved money
Source.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and it cannot be construed to limiting the scope of the invention in any way.Based on the explanation herein, the technology of this field
Personnel would not require any inventive effort the other specific implementation modes that can associate the present invention, these modes are fallen within
Within protection scope of the present invention.