CN2749567Y

CN2749567Y - Strong double roll breaker

Info

Publication number: CN2749567Y
Application number: CN 200420075313
Authority: CN
Inventors: 宋喜民
Original assignee: DAHUA HEAVY MACHINERY Co Ltd LUOYANG
Current assignee: DAHUA HEAVY MACHINERY Co Ltd LUOYANG
Priority date: 2004-12-06
Filing date: 2004-12-06
Publication date: 2006-01-04
Anticipated expiration: 2014-12-06

Abstract

The utility model discloses a strong double roll breaker which mainly comprises a grinding roll and two motors (7) (8), wherein the grinding roll is composed of a machine frame, a base (21), a fixed roll (19) and a movable roller (20); both ends of a wheel shaft of the fixed roll (19) are supported on the machine frame by a bearing, and fixed roll (19) is fixed corresponding to the machine frame; one side of the movable roll (20) is supported on the machine frame by a safe elastic adjusting device; on end of the wheel shaft of the fixed roll (19) is linked with the motor (7) by a speed reducer (9); one end of a wheel shaft of the movable roll (20) is connected with a universal coupling (13), and the other end of the universal coupling (13) is connected with a motor (8) through a speed reducer (10). The utility model has the advantages of strong overload capacity, long life time of easy wearing parts, simple and quick replacement, low expense, etc. Materials which are harder than middling hardness can be broken by the utility model.

Description

Powerful double-roll crusher

Affiliated technical field

The utility model belongs to a kind of breaker, relates generally to a kind of powerful double-roll crusher, is used for the processing in small, broken bits of metallurgy, building materials, chemical industry, the above material of medium hardness such as nonmetal, and particularly suitable is installed in the operation in small, broken bits of ball mill leading portion.

Background technology

At mineral processing and utilization or building material industry, often need the material about 60mm～10mm is processed as below the 10mm, reduce mill feed size, improve mill output, realize falling the purpose that can save consumption.This just need a kind of simple in structure, safe and reliable, take up an area of that the space is little, small investment, equipment in small, broken bits that operation cost is low.Now the double-roll crusher that uses generally adopts single motor, long gear or twin tires frictional drive or bi-motor V belt, the belt wheel kind of drive.As shown in Figure 1 for the double-roll crusher sketch of the long gear kind of drive, mainly driving stationary roll 3 by motor 1 by V-belt 2 rotates, long gear on the stationary roll 3 and long gear 5 interlocks on the movable roll 4, because long gear 5 is direct casting, can not processing and manufacturing, precision is low, noise is big, and two roller gap adjustment range are little, transmitted power is little, lubricated difficulty.Accompanying drawing 2 is the double-roll crusher sketch of the twin tires kind of drive, and motor 1 drives stationary roll 3 by V-belt 2 and rotates, tire on the stationary roll and 6 interlocks of the tire on the movable roll, and it can not be used in the high place of environment temperature; Accompanying drawing 3 is the double-roll crusher sketch of bi-motor, V-belt, belt pulley type of belt drive, and stationary roll 3 and movable roll 4 are respectively by two driven by motor, and its speed reducing ratio is little, the engine speed height, and transmitted power is little, the grinding roller quick abrasion, gap adjustment range is little between grinding roller.More than the double-roll crusher of several kinds of drive be only applicable to small-sized transmitted power, production capacity is little, softer material in the processing (as lime, coke etc.) is not suitable for large-scale transmitted power, the processing of big or middle hard above material of production capacity such as iron ore, copper mine stone, slag, clinker etc.Existing in addition double-roll crusher grinding roller is that whole high-abrasive material casting forms, material adopts steel alloy surface hardening or forms such as potassium steel casting or other material surface pile-up welding hard alloy, not only wearing coat hardness is low for these several forms, service life is short, and when changing grinding roller, complete machine need be taken apart, changes frequent difficulty.

Summary of the invention

The purpose of this utility model provides a kind of powerful double-roll crusher, and it is strong to make it have overload capacity, and the consumable accessory long service life is changed characteristics such as simple, rapid, that expense is low, the processing of hard above material in can being suitable for.

The purpose of this utility model can adopt following technical scheme to realize: it comprises grinding roller and two motors that frame, base, stationary roll and movable roll are formed, stationary roll wheel shaft two ends are bearing on the frame by bearing, the stationary roll position is fixed with respect to frame, one side of movable roll is bearing on the frame by a safety elastic adjusting device, one end of stationary roll wheel shaft is by a reductor and a motor interlock, one end of movable roll wheel shaft is connected with a universal coupling, and the other end of universal coupling is connected with another motor by a reductor.

Described grinding roller is a fabricated structure, and it is made of wearing coat and interior cover, and interior cover and grinding roller main shaft are fixed, cover top layer in the wearing coat is fixed on.

The wearing coat is formed by 4～8, the uniform roller surface that is fixed on.

Safe adjusting device varies in size according to processing materials hardness and specification of equipment can adopt spring and two kinds of forms of hydraulic cylinder, high-power to adapt to, the processing request of hard above material in the processing.

From the above mentioned, can adopt V-belt, belt pulley transmission between the motor and speed reducer of the present utility model, can change the belt pulley size, change the grinding roller working speed, to adapt to the requirement of different material production capacity and processing fineness.Simultaneously, the V-belt type of belt drive, when load increased suddenly, skidding in the V-belt, plays the effect that the certain protection motor does not burn out.Movable roll adopts the universal coupling transmission, and it is big to have a transmitted power, and noise is little, does not often need lubricated.Can not broken thing or when regulating between two rollers gap when entering between two rollers, universal coupling has deflection certain angle, flexible function automatically, can realize the variation in gap between two rollers.Can be used for simultaneously work under the high temperature again.This has just solved the technical problem that exists on the existing double-roll crusher kind of drive, make its be applicable to high-power, the slow-speed of revolution, big production capacity, in the processing of hard above material.Safe adjusting device varies in size according to processing materials hardness and specification of equipment can adopt spring and two kinds of forms of hydraulic cylinder, high-power to adapt to, the processing request of hard above material in the processing.When needing to change after the wearing and tearing of wearing coat, only need open the housing protective cover, unclamp cover set bolt in wearing coat and the grinding roller, change one by one, need not take complete machine apart, need not pull down cover in main shaft and the grinding roller.Both simple, convenient, can save the wearing coat Master Cost again, reduce use cost.Because the intensity height of wearing coat, wearability is good, long service life.Compare with present general double-roll crusher, processing with hard above material in can being suitable for, transmitted power is big, production capacity is big, and noise is low, is applicable under the hot environment to work, it is big to regulate interstice coverage between grinding roller, overload capacity is strong, and the consumable accessory long service life is changed advantages such as simple, rapid, that expense is low.That its scope of application can be generalized to is black, have, the operation in small, broken bits of hard above material in nonmetal, the cement life, grog, slag etc.Because it is highly low, floor space is little, transform before can being used in former ore dressing plant, cement plant ball mill, mill feed size is dropped to about 10mm by average 20mm, mill output improves 20～30%, realizes " how broken few mill ", falls can save that to consume effect very considerable.

Description of drawings

Accompanying drawing 1 is the double-roll crusher sketch of the existing long gear kind of drive.

Accompanying drawing 2 is the double-roll crusher sketch of the existing twin tires kind of drive.

Accompanying drawing 3 is the double-roll crusher sketch of existing bi-motor V-belt belt wheel transmission.

Accompanying drawing 4 is a structural representation of the present utility model.

Accompanying drawing 5 is the vertical view of Fig. 4.

Accompanying drawing 6 is the left view of Fig. 5.

Accompanying drawing 7 is the grinding roller structural representation.

Accompanying drawing 8 is a kind of drive sketch of the present utility model.

Among the figure: 1, motor, 2, the V-belt, 3, stationary roll, 4, movable roll, 5, long gear, 6, tire, 7,8, motor, 9,10, reductor, 11, protective cover, 12, the driving section base, 13, universal coupling, 14, safety adjusts spring, 15, the grinding roller main shaft, 16, cover in the grinding roller, 17, the wearing coat, 18, set bolt, 19, stationary roll, 20, movable roll, 21, gantry base.

The specific embodiment

In conjunction with the accompanying drawings, the specific embodiment of the present utility model is described.

Shown in accompanying

drawing

4,5,6: the utility model mainly comprises grinding roller and two motors 7,8 that frame, base 21, stationary roll 19 and movable roll 20 are formed, stationary roll 19 wheel shaft two ends are bearing on the frame by bearing, stationary roll 19 positions are fixed with respect to frame, one side of movable roll 20 is bearing on the frame by a safety elastic adjusting device, and movable roll 20 relative frames can move horizontally.Safe adjusting device varies in size according to processing materials hardness and specification of equipment can adopt spring and two kinds of forms of hydraulic cylinder, high-power to adapt to, the processing request of hard above material in the processing.Present embodiment adopts spring 14 supportings, is used to adjust moving horizontally of movable roll 20.One end of stationary roll 19 wheel shafts is by reductor 9 and motor 7 interlocks, and an end of movable roll 20 wheel shafts is connected with a universal coupling 13, and the other end of universal coupling 13 is connected with another motor 8 by reductor 10.

As shown in Figure 7: described stationary roll 19 and movable roll 20 are fabricated structure, and it is made of wearing coat 17 and interior cover 16, and interior cover 16 is fixed with roll shaft, and the wearing coat is formed by 4～8, the uniform grinding roller top layer that is fixed on.

8 operation principle of the present utility model is described in conjunction with the accompanying drawings: motor 7 slows down through V-belt 2, belt pulley and reductor and drives stationary roll 19 rotations, and motor 8 is connected universal coupling 13 and movable roll 20 interlocks by reductor 10 with a universal coupling 13.Stationary roll 19 and movable roll 20 be rotary work in opposite directions, main, the driven roll portion of framework portion supporting.Material to be machined enters between two rollers through feed arrangement, and material is squeezed, grinds and fragmentation, discharges body through frame lower.

When entering in the material can not broken thing the time, safety is adjusted spring 14 pressures and is increased, and moves after movable roll 20 is stressed, makes that the gap increases between two rollers, can not broken thing under self-gravity action, discharge body.Simultaneously, because in the long-term work process, can wear and tear in the wearing coat of breaker roll portion, the gap increases and make between the two, or the material marker size required not simultaneously, when needing to adjust between two rollers gap, because universal coupling has the deflection certain angle, length can be stretched, and still can transmit the characteristic of corresponding power.Therefore, motor, reductor are motionless relatively, and by universal joint deflection certain angle, the gap excursion is bigger between two rollers.

When the grinding roller wearing coat may wear to a certain degree, must change.Change the wearing coat, need only pull down the protective cover 11 at grinding roller top, pull down the attachment bolt 18 that overlaps between 16 in wearing coat 17 and the grinding roller and change one by one.Do not need to take complete machine apart, pull down bearing, cover in main shaft and the grinding roller, change simple and convenient.

Claims

1, it comprises frame a kind of powerful double-roll crusher, base (21), grinding roller and two motors (7) (8) that stationary roll (19) and movable roll (20) are formed, stationary roll (19) wheel shaft two ends are bearing on the frame by bearing, stationary roll (19) position is fixed with respect to frame, one side of movable roll (20) is bearing on the frame by a safety elastic adjusting device, it is characterized in that: an end of stationary roll (19) wheel shaft is by reductor (9) and motor (7) interlock, one end of movable roll (20) wheel shaft is connected with a universal coupling (13), and the other end of universal coupling (13) is connected with motor (8) by a reductor (10).

2, powerful double-roll crusher according to claim 1, it is characterized in that: stationary roll (19) and movable roll (20) are fabricated structure, it is made of wearing coat (17) and interior cover (16), and interior cover and roll shaft are fixed, and wearing coat (17) are fixed on interior cover (16) top layer.

3, powerful double-roll crusher according to claim 1 is characterized in that: wearing coat (17) are formed by 4～8, the uniform grinding roller top layer that is fixed on.