CN201304413Y - Frame roll and lower foreplate replacement system of universal rough rolling machine for hot rolling - Google Patents

Abstract

The utility model relates to a frame roll and lower foreplate replacement system of a universal rough rolling machine for hot rolling, which comprises a rolling machine main balancing cylinder, a rolling machine work roll changing push-pull cylinder and a hoisting track, and is characterized by also comprising a roll change buggy, a lever, a bracket and a roller which is arranged at the lower part of a lower foreplate; the system overcomes the defects that the frame roll and the lower foreplate of the prior universal rough rolling machine are difficult to manually replace, the operation intensity is high, the time is long and the efficiency is low, solves the problem of the frame roll and lower foreplate replacement, improves the automation level, reduces the labor intensity of workers, reduces the maintenance time, improves the economic benefit, has the advantages of compact structure and low equipment investment, and can be widely applied to slab band rolling machines in the metallurgical industry, in particular to auxiliary tools of universal rough rolling machines for hot rolling.

Description

Hot rolling universal roughing mill breast roll is changed system with following guide and guard

Technical field

The utility model relates to the aid of hot rolling universal roughing mill, relates in particular to a kind of hot rolling universal roughing mill breast roll and changes system with following guide and guard.

Background technology

Breast roll and the important component part that following guide and guards is the hot rolling universal roughing mill guarantee red heat steel billet carrying out smoothly in the reversible rolling process.Its condition of work is abominable, sting in the process of steel and throwing steel at milling train, bear strong impulsive force, also bear the baking of high temperature simultaneously, and the erosion of water under high pressure, cooling water, iron scale etc., its position is positioned at the memorial archway bottom, and the space is narrow and small, large lifting equipment reaches, thereby keeps in repair extremely difficult.

She Ji hot-strip roughing mill breast roll and the shared solid housing of following guide and guard were clamped in the memorial archway seat rigidly in the past, and breast roll is the direct transmission of single motor, following guide and guard are the cylinder swing, be characterized in that reliable operation is durable, be difficult for producing heap steel drill steel accident, but change extremely difficult.

Summary of the invention

In view of existing in prior technology the problems referred to above, there is utility model to aim to provide more changing device of a kind of hot rolling universal roughing mill breast roll and following guide and guard, to reach the purpose of changing breast roll and following guide and guards quickly and easily.

Technical solution of the present utility model is achieved in that

A kind of hot rolling universal roughing mill breast roll is changed system with following guide and guard, comprises milling train master compensating cylinder, operation roll of mill roll change push-and-pull cylinder, promotes track, it is characterized in that also comprising roll change buggy, lever, bearing and the roller that is installed on down the foreplate bottom;

Described roll change buggy is the lead frame structure, and it comprises:

Main riser is positioned at described roll change buggy two ends, and two at an end forms one group, constitutes the described track of foreplate bottom roller down jointly;

Axle and axle sleeve, between two main risers, the axle sleeve segmentation is placed on the axle in uniform way, is fixedly connected by bolt and main riser;

Middle part riser and backing plate, both form T type Welding Structure, backing plate in horizontal direction, locating notch and locating hole are offered in its upper surface two ends, in order to location and fixing oblique block and straight block, described oblique block and straight block are stuck in the both sides of breast roll and following foreplate respectively respectively;

Slide plate is fixedly linked in the both sides at roll change buggy two ends, and the distance between the sliding surface of two slide plates of each end is consistent with the width of the memorial archway window of milling train;

Location-plate is fixedly linked in the end of the fore side of roll change buggy, and the distance between the outer rim of two location-plates is greater than the width of milling train system memorial archway window;

Wheel is positioned at bottom, roll change buggy two ends, and by promoting rail supported, the cylinder head that promotes track and milling train master compensating cylinder links down for it;

Roll change buggy by being positioned at its fore side hook base and the cylinder head of operation roll of mill roll change push-and-pull cylinder link;

Described lever is a L type gib head spare, is supported by described axle and axle sleeve, locates and connects by force-bearing pin and main riser; Under the off working state, L type lever closes between described two main risers, descends L type lever to shift out dolly along rolling on the axle sleeve in working order, and an end connects with main riser location by force-bearing pin, and the gib head position of the other end is by seat supports; Described bearing is the welding bearing, and its upper surface comprises one section by the part of chamfered transition to the plane.

Compared with prior art, the beneficial effects of the utility model are self-evident:

The utility model is at the type characteristics of universal roughing mill, by milling train master compensating cylinder and workroll change function, by the simple small and exquisite roll change buggy and the design of lever, be combined in down the design of the roller of installing the foreplate bottom, overcome existing hot rolling universal roughing mill breast roll and following guide and guards and manually changed operating difficulties, manipulation strength is big, time is long, inefficient shortcoming, solve breast roll and following foreplate replacing problem, improved automatization level, reduced labor strength, reduced maintenance time, thereby economic benefit is improved, and the design also has compact conformation simultaneously, the advantage that equipment investment is few; Can be widely used in the metallurgy industry strip-mill strip, especially the aid of hot rolling universal roughing mill.

Description of drawings

Fig. 1 is the structural representation of embodiment 1;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is that breast roll is changed state (I) figure with following foreplate;

Fig. 5 is that breast roll is changed state (II) figure with following foreplate;

Among the figure,

1, roll change buggy

10, backing plate

11, main riser

12, axle sleeve

13, slide plate

14, location-plate

15, wheel

16, straight block

17, oblique block

18, hook base

2, force-bearing pin

3, lever

4, bearing

5, promote track

8, roller

9, breast roll and following guide and guard

The specific embodiment

Now in conjunction with the accompanying drawings the utility model is described in further detail:

Hot rolling universal roughing mill breast roll comprises milling train master compensating cylinder, operation roll of mill roll change push-and-pull cylinder, lifting track 5 with following guide and guard 9 replacing systems, it is characterized in that also comprising roll change buggy 1, lever 3, bearing 4 and the roller 8 that is installed on down the foreplate bottom;

Described roll change buggy 1 is the lead frame structure, and as Fig. 1, Fig. 2 and shown in Figure 3 comprises:

Main riser 11, axle and axle sleeve 12, middle part riser and backing plate 10 are located and fixing oblique block 17 and straight block 16 slide plate 13, location-plate 14, wheel 15 respectively by locating notch and locating hole on the backing plate 10;

Described lever 3 is a L type gib head spare, lift carriage roller and following foreplate during in order to roll change, and as the track of its motion, it is by described axle and axle sleeve 12 supports, locate and connect by force-bearing pin 2 and main riser 11, described force-bearing pin 2 is load when lifting breast roll and the rolling of following foreplate.Under the off working state, L type lever 3 closes between described two main risers 11, descends L type lever 3 to shift out roll change buggy 1, one end along rolling on the axle sleeve 12 in working order and connects with main riser 11 location by force-bearing pin 2, and the gib head position of the other end is supported by bearing 4;

Described bearing 4 is welding bearings, lifting track 5 when roll change and in the rolling-mill housing build-up member is the lifting breast roll together: promote track 5 liftings, bearing 4 is as the fulcrum of the other end, the pressure of lever 3 gib heads when bearing roll change, the inclined-plane of its upper surface is convenient to lever 3 and is moved on the bearing 4 along the inclined-plane.

The main riser 11 at roll change buggy 1 two ends plays the effect of track, roller 8 during for roll change on the breast roll body of roll and the following foreplate is rolling-operation thereon, the axle sleeve 12 that moves for L type lever 3 is installed in main riser 11 middle and lower parts, make lever 3 operations light, on main riser 11, also be processed with pin-and-hole, force-bearing pin 2 is tied lever 3 and main riser 11, and when roll change load.On the riser of the middle part of dolly, be welded with the backing plate 10 of breast roll body of roll motion, locating notch and locating hole are offered in its upper surface two ends, respectively in order to location and fixing oblique block 17 and straight block 16, described oblique block 17 and straight block 16 are stuck in the both sides of breast roll and following guide and guard 9 respectively, prevent that breast roll and following guide and guard 9 from arbitrarily rolling when the milling train window is extracted out, guarantee the equipment mobile security.In the dolly side faces at both ends slide plate 13 is installed, distance between the sliding surface of two slide plates 13 of each end is consistent with the width of the memorial archway window of milling train, when promoting, roll change leads along memorial archway window, and the power of tumbling when dolly promoted passes to the mill housing window side, makes lifting process steady; And be provided with location-plate 14 at fore side, and being fixedly linked in the end of the fore side of roll change buggy 1, the distance between the outer rim of two location-plates 14 is greater than the width of milling train system memorial archway window, locatees when roll change buggy is entered the milling train window; In the bottom, two ends of roll change buggy four wheels 15 are housed also, make roll change buggy carry out rolling-operation.Fore side at roll change buggy is provided with hook base 16, makes dolly turnover milling train under the effect of operation roll of mill roll change push-and-pull cylinder.

When breast roll and following foreplate are installed at the scene, when breast roll breaks down, adopt this device to carry out breast roll and the replacing of following foreplate when perhaps descending foreplate to break down.

After milling train swaps out working roll and backing roll in milling train, send roll change buggy 1 to the milling train window with the work roll changing cylinder, manual L type lever 3 is rolled from the axle sleeve between the roll change buggy master riser 11 12 shifted out, lever 3 is along under the bearing 4 inclined-plane inclination moving frame rollers, the elbow of its lever 3 is bearing on the bearing 4, plug force-bearing pin 2 again, shown in Fig. 4 center line left side; Milling train master compensating cylinder rises, and drives the roll change buggy 1 that promotes on track 5 and the lifting track 5, and lever 3 is progressively balanced, and breast roll and following guide and guard 9 is lifted, shown in Fig. 4 center line right side; Make the breast roll bearing block break away from the deck of mill housing, breast roll and following guide and guard 9 are moved on in the milling train window, as shown in Figure 5, work roll changing push-and-pull cylinder acts on the roll change buggy 1 by the hook base 16 that is positioned at roll change buggy 1 fore side and pulls it, and changes new and old breast roll and following foreplate.Again roll change buggy 1 is pushed, breast roll and following guide and guard 9 oppositely are installed.

This complete equipment cost is low, simple in structure, operation and maintenance convenient, high efficiency, and economic benefit is very considerable:

Expectation can be created benefit: simple manual replacing breast roll and the following foreplate of adopting, the time of changing once approximately needs more than 2 days, adopt present design, the time of changing once can reduce in 8 hours, can save greater than 80 hours in 1 year by changing 2 calculating of breast roll and following guide and guards in 1 year, 300 tons of steel rolling output by the hour, then 1 year can many steel rolling 24000t, by 800 yuan of ton steel net profits, then net profit can reach 1,920 ten thousand yuan/year; Estimating increases cost: equipment is mainly welding structural element, 3.83 tons of weight, and according to 2.5 ten thousand yuan of/ton calculating, totle drilling cost is ten thousand yuan of 2.5 * 3.83=9.575; If can use calculating in 20 years according to this device, cost every year on average only is ten thousand yuan of 9.575 ÷ 20=0.47875; Thus, then can get 1919.52 ten thousand yuan of net profits every year.

The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, all should be encompassed within the protection domain of the present utility model.

Claims (1)

1, a kind of hot rolling universal roughing mill breast roll is changed system with following guide and guard, comprises milling train master compensating cylinder, operation roll of mill roll change push-and-pull cylinder, promotes track, it is characterized in that also comprising roll change buggy, lever, bearing and the roller that is installed on down the foreplate bottom;

Described roll change buggy is the lead frame structure, and it comprises:

Main riser is positioned at described roll change buggy two ends, and two at an end forms one group, constitutes the described track of foreplate bottom roller down jointly;

Axle and axle sleeve, between two main risers, the axle sleeve segmentation is placed on the axle in uniform way, is fixedly connected by bolt and main riser;

Middle part riser and backing plate, both form T type Welding Structure, backing plate in horizontal direction, locating notch and locating hole are offered in its upper surface two ends, in order to location and fixing oblique block and straight block, described oblique block and straight block are stuck in the both sides of breast roll and following foreplate respectively respectively;

Slide plate is fixedly linked in the both sides at roll change buggy two ends, and the distance between the sliding surface of two slide plates of each end is consistent with the width of the memorial archway window of milling train;

Location-plate is fixedly linked in the end of the fore side of roll change buggy, and the distance between the outer rim of two location-plates is greater than the width of milling train system memorial archway window;

Wheel is positioned at bottom, roll change buggy two ends, and by promoting rail supported, the cylinder head that promotes track and milling train master compensating cylinder links down for it;

Roll change buggy by being positioned at its fore side hook base and the cylinder head of operation roll of mill roll change push-and-pull cylinder link;

Described lever is a L type gib head spare, is supported by described axle and axle sleeve, locates and connects by force-bearing pin and main riser; Under the off working state, L type lever closes between described two main risers, descends L type lever to shift out dolly along rolling on the axle sleeve in working order, and an end connects with main riser location by force-bearing pin, and the gib head position of the other end is by seat supports; Described bearing is the welding bearing, and its upper surface comprises one section by the part of chamfered transition to the plane.

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