CN2078338U

CN2078338U - Assembly of fly-cutting roller for beater

Info

Publication number: CN2078338U
Application number: CN 90207568
Authority: CN
Inventors: 唐树学
Original assignee: HUOLU COUNTY LIGHT INDUSTRIAL MACHINERY FACTORY SHIJIAZHUANG CITY
Current assignee: HUOLU COUNTY LIGHT INDUSTRIAL MACHINERY FACTORY SHIJIAZHUANG CITY
Priority date: 1990-05-25
Filing date: 1990-05-25
Publication date: 1991-06-05

Abstract

The utility model relates to an assembly of a fly-cutting roller for a beater, which comprises a fly cutter roller shaft, a cutter body, a fly cutter blade and a fly cutter roller shaft supporter, wherein, the top end of the fly cutter roller shaft is provided with a pulley arranged, the fly cutter roller shaft supporter adopts four groups of duplex rolling bearings for forming two rolling bodies substituting for the bearing shell for supporting the running of the fly cutter roller shaft. The friction coefficient is reduced, the consumption of the electric force and the lubricating oil and the unit cost are reduced, the permitting bearing capacity is enhanced, and the service life of the utility model. Is extended by more than twice.

Description

Assembly of fly-cutting roller for beater

The utility model relates to a kind of beater, is the beating apparatus in a kind of beater specifically.

Beater is an indispensable main pulping machinery in the paper-making industry, and what generally use at present is " Holland " formula or " Holland and volt " formula beater.Beater roll wherein (being beater roll(er) again) assembly comprises parts such as fly cutter roll shaft, cutter tire, roll bar and the supporting of fly cutter roll shaft, drives the fly cutter roll shaft by the belt pulley on driven by motor fly cutter roll shaft top and rotates.Fly cutter roll shaft supporting wherein is to adopt the bearing shell form, comprises upper and lower bearing shell.Top bearing shell and beater roll between centers have certain interval, so that the fly cutter roll shaft has certain activity surplus in vertical direction.And the fly cutter roll shaft is to contact fully with lower bearing.Because contact area is big, makes coefficient of friction higher.And the weight of fly cutter roll shaft is very big, and therefore, the operation friction resistance of fly cutter roll shaft is very big, and required drive is big, the consumption of lubricating oil height.For the swivel bearing of general heavy load, be mostly to adopt the bearing shell supporting.Its bearing capacity is big, can keep operation.But its significant disadvantages is that owing to be the face contact, if apply oil is untimely, or load increases suddenly, and the blocking under warming of roll shaft and bearing shell very easily takes place, and promptly burns bearing shell.So the service life of bearing shell is all not high, and often changes bearing shell because of need, and production cost increases on the one hand; Often shut down on the other hand, reduce production efficiency, influence is produced.

The purpose of this utility model just provides the beater roll assembly that a kind of oil consumption is low, save operation electric power, and wherein the coefficient of friction between fly cutter roll shaft and its supporting reduces, with the service life of raising beater roll assembly and the production efficiency of beater.

The utility model is achieved in that the beater roll assembly comprises parts such as fly cutter roll shaft, cutter tire and roll bar, and a belt pulley is arranged on fly cutter roll shaft top, is connected with motor output shaft by belt.The supporting of fly cutter roll shaft is to realize that by paying at the bearing of axial two side lower parts at fly cutter roll shaft two ends the axle during bearing is paid is fixed on the bearing base.

The utility model replaces bearing shell to support fly cutter roll shaft in the beater by paying with the bearing that rolls, the fly cutter roll shaft is contacted by face with its supporting become the line contact, therefore coefficient of friction obviously descends, frictional resistance reduces, required drive reduces thereupon, lubricating oil can replace original machine oil with butter simultaneously, and consumption reduces significantly.Following table is to adopt bearing to pay on 5 cubic metres of beaters to adopt the tin bronze bearing shell to do the use contrast of fly cutter roll shaft supporting:

Supporting	Coefficient of friction	Need electric power	Oil consumption	The repair and replacement time
					Bearing shell	0.07	30 kilowatts	12.5 kilogram/week	2 days
Bearing is paid	0.05	6 kilowatts	1 kilogram/week	4 hours

After adopting bearing to pay supporting as seen from the above table, coefficient of friction reduces by 0.02, and frictional force descends significantly, and class's economize on electricity can reach 192 degree/platforms, annual separate unit economize on electricity reaches 57600 degree, simultaneously, the repair and replacement of bearing shell need maintenance times such as grinding, scraping long, and use bearing to pay supporting, then repair and replacement once only need 4 hours, and required time then shortens greatly, has further improved productivity ratio.

Adopt bearing to pay in the axial both sides of fly cutter roll shaft lower support, still can guarantee beater roll activity surplus in vertical direction, and behind the supporting form that the employing bearing is paid, the pressure that bears of its permission is increased to 52160 kgfs by 11875 kilograms of bearing shell, therefore, not only satisfy the needs of supporting fully, and can prolong more than the twice its life-span than bearing shell.

Further specify concrete structure of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is the schematic diagram of beater roll assembly.

Fig. 2, Fig. 3 are the structural representations of beater roll supporting.

As shown in Figure 1, beater beater roll assembly comprises fly cutter roll shaft 7, cutter tire 16, roll bar 17 and fly cutter roll shaft supporting 20, a belt pulley 18 is arranged on the top of fly cutter roll shaft 7, can be connected with motor output shaft by belt 19, by the rotation of motor-driven fly cutter roll shaft.

The supporting of fly cutter roll shaft adopts bearing to pay form, as Fig. 2, shown in Figure 3.Bearing is paid axial two side lower parts at the two ends that are installed in fly cutter roll shaft 7, is made up of bearing 11, axle 9, roll sleeve 15 and spacer sleeve 12.Axle 9 is fixed on the bearing base 1 by holding screw 13, and there is door 3 at two ends, are fixed on the bearing base 1 by sunk screw 14.Below door 3, be provided with the drainage of plug cock 6, confession waste oil etc.On the top of bearing base 1 bearing upper cover 4 is arranged, be fixed on the bearing base by connecting bolt 2.Oil filler point is arranged at the top at bearing upper cover 4, can insert a priming cup 5 in the hole, for injecting butter.Between fly cutter roll shaft and bearing cap, the seat sealing ring 8 is arranged.

Bearing 11 can be wide serial bearing, fixes one at the every end in the two ends of axle 9, also narrow series of balls bearing, and every end is fixed two.Both bearing capacitys and anti-impact force all meet the demands.For narrow serial bearing, if every end is installed one, then allow to bear pressure and reduce, the life-span is not high, if install more than three, then cost increases, the ratio of performance to price is unreasonable.Spacer sleeve 12 is enclosed between two groups of bearings of axle on 9, roll sleeve 15 is housed, the back-up ring 10 between bearing 11 and bearing base 1 on the bearing outer ring.To pay the diameter of joint smaller with bearing on the fly cutter roll shaft, becomes the axle journal form, and the outer rim of the roll sleeve 15 during bearing is paid snaps in wherein, plays position-limiting action.

The utility model adopts the form that every end is fixed two narrow serial bearings on axle 9, and promptly integral body is that four groups of duplex rolling bearings are combined into the operation that two rolling elements support the fly cutter roll shaft, and then effect is ideal.

Claims

1, a kind of beater beater roll assembly, comprise fly cutter roll shaft, cutter tire and roll bar, the belt pulley that is connected with motor for by belt is arranged on fly cutter roll shaft top, axial two side lower parts that it is characterized in that supporting fly cutter roll shaft 7 two ends are useful on the bearing of supporting fly cutter roll shaft and pay, and the axle 9 during bearing is paid is fixed on the bearing base 1.

2, beater roll assembly according to claim 1 is characterized in that bearing is paid by bearing 11, axle 9, roll sleeve 15 and spacer sleeve 12 to form.

3, beater roll assembly according to claim 1 and 2 is characterized in that the bearing 11 of bearing in paying is wide serial bearing, fixes one at the every end in the two ends of axle 9.

4, beater roll assembly according to claim 1 and 2 is characterized in that the bearing 11 of bearing in paying is narrow serial roller bearing, fixes two at the every end in the two ends of axle 9.

5, beater roll assembly according to claim 1 and 2, the diameter that it is characterized in that on the fly cutter roll shaft paying with bearing the joint is smaller, becomes the axle journal form, and the outer rim of the roll sleeve 15 during bearing is paid snaps in wherein.

6, beater roll assembly according to claim 1 is characterized in that bearing upper cover 4 is arranged at the top of bearing base 1, is fixed on the bearing base by connecting bolt 2, at the top of bearing upper cover 4 oil filler point is arranged.