CN2369786Y - Multifunction assembling and disassembling machine for rolling mill working roll bearing box - Google Patents

Abstract

The utility model provides a multifunction assembling and disassembling machine for a working roll bearing box of a rolling mill, which is composed of a roll bed, large vehicle bodies which are arranged at both side of the roll bed and can be moved along a track, and small vehicle bodies which can be used for making lifting and reciprocating motion on the large vehicle bodies. A platform of each small vehicle body is fixed with four stop pieces which are used for placing a bearing box with a maximal size, and platform of the small vehicle which is arranged at the inner side of stop pieces is provided with a plurality of spring type stop pins. The end of each lengthened large vehicle body is fixed with a catcher bracket, the interior of the small vehicle body at the side is provided with four carrier rolls which are lower than the platform of the small vehicle, and catcher bafflers are arranged before or after the carrier rolls. The utility model enlarges the range of assembling and disassembling the bearing box, and has the advantages of little investment, high efficiency, simple operation, etc.

Description

Multi-functional operation roll of mill bearing housing changer

The utility model relates to a kind of operation roll of mill bearing housing changer, is specially adapted to the disassemble and assemble work of the bearing housing of multicomputer and specification complexity.

Working roll is one of spare part that very easily weares and teares in the milling train, so need to change continually.Bearing housing on the old working roll to be pulled down during replacing and be installed on the standby new working roll.Because the specification of working roll is more, and at the working roll of different size, the form of the size of its bearing housing and transmission side profile of tooth catcher also is not quite similar, so the also just difference to some extent of their dismounting process.Show mainly when changing working roll that a kind of is that the profile of tooth catcher of transmission side is not taken milling train out of with working roll, bearing housing can directly be pulled down from old working roll and be installed on the new working roll, and it is fairly simple to operate; Another kind is that the profile of tooth catcher of transmission side is taken milling train out of with working roll, must earlier the profile of tooth catcher be unloaded during the dismounting bearing housing, could dismantle bearing housing, and is then on the contrary during installation, so it is more loaded down with trivial details to operate.Requirement at above-mentioned bearing housing dismounting process, at present, the operation roll of mill bearing housing changer that generally uses mainly contains two kinds both at home and abroad: a kind of is by the roller bed that is used to support operation roll of mill, rely on the big car body of walking about hydraulic motor in roller bed both sides along track, on big car body, rely on the dolly body that is used as lifting and seesaws of hydraulic cylinder to form.This kind changer only is applicable to that its profile of tooth of dismounting catcher do not taken out of the workroll bearing case of milling train, and the scope of application is narrower.Another kind of then be on preceding a kind of basis, side at the roller bed increases by one group of mechanism for assembling-disassembling of being made up of large and small car body again, this kind changer not only has preceding a kind of function, but also having increased the function of can its profile of tooth catcher of dismounting being taken out of the workroll bearing case of milling train, the scope of application has correspondingly enlarged.However, because this kind changer is to operate respectively by the two assembly and disassembly mechanisms that a side is made up of large and small car body to realize when dismounting has the bearing housing of profile of tooth catcher,, be difficult for medium problem so exist complex operation.In addition, because the stop location on each dolly body platform all is single, and immobilize.Therefore the size of institute's disassemble and assemble work roller bearing case also just is defined in the dust, and the scope of application is narrower, is difficult to the needs of the workroll bearing case dismounting of the multiple roll shape of adaptation, multiple size.

The purpose of this utility model is to provide a kind of bearing housing that both can the different size dimensions of dismounting, the multi-functional operation roll of mill bearing housing changer of the profile of tooth of dismounting simultaneously catcher.

The purpose of this utility model is to realize like this, this multi-functional operation roll of mill bearing housing changer, main by the roller bed that is used for the support works roller, roller bed both sides rely on the big car body of walking about hydraulic motor along track, on big car body, rely on the dolly body that is used as lifting and seesaws of hydraulic cylinder to form, on dolly body platform, be fixed with four blocks that are used to place the maximum bearing housing of size, on the trolley platform of block inboard, be provided with some the spring backing pin.In addition, the corresponding lengthening of big car body with roller bed one side, fix a catcher carriage at the cart end of body of lengthening and with the corresponding position of dolly longitudinal axis, in the little car body of this side, be provided with four carrying rollers that are lower than trolley platform, be provided with the catcher baffle plate in the front and back of carrying roller.

The workroll bearing case changer of employing said structure has not only enlarged the scope of its dismounting bearing housing, and each side that is implemented in the roller bed only needs one group of mechanism for assembling-disassembling of being made up of large and small car just can finish the disassemble and assemble work that profile of tooth is taken over the workroll bearing case when being taken out of, has small investment, efficient height, simple operation and other advantages.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 is a floor plan of the present utility model;

Fig. 2 is the side view of the large and small car body of a side that is lengthened out in the utility model;

Fig. 3 is the axial view of the large and small car body of a side that is lengthened out in the utility model;

Fig. 4 is the front view of the medium and small car body of the utility model;

Fig. 5 is the side view of Fig. 4;

Fig. 6 is the front view of the profile of tooth catcher of the utility model institute dismounting;

Fig. 7 is the front view of the utility model medi-spring formula backing pin.

(what provide among Fig. 2 is to take over the different dismounting modes that adopted at the bearing housing of different size with profile of tooth) as shown in Figure 1, 2, multi-functional operation roll of mill bearing housing changer of the present utility model, main by the roller bed 5 that is used for the support works roller, the big car body 3 that roller bed 5 both sides rely on hydraulic motor about 1 to walk along track 8 relies on the dolly body that is used as lifting and seesaws 4 of hydraulic cylinder to form on big car body 3.On dolly body platform 2, be fixed with four blocks 13 that are used to place the maximum bearing housing 15 of size, effect is that bearing housing 15 is placed in four blocks, so that the propelling of bearing housing 15 and pulling out, the size of maximum bearing housing 15 is depended in the position of its four blocks 13.Dolly body platform 2 is formed by being positioned at dolly body both sides and being parallel to two of longitudinal axis dull and stereotyped institutes.On the trolley platform 2 of block 13 inboards, be provided with some to spring backing pin 14.As shown in Figure 7, spring backing pin 14 is formed by being placed on the spring 21 in platform 2 holes and being positioned at the bearing pin 19 that its step on the spring 21 matches with gland 20 on being fixed on platform 2 planes.Effect is when dismounting maximum bearing housing 15, all spring backing pins 14 are driven plain (not playing the backing pin effect), and when the less bearing housing 16 of dismounting, corresponding spring backing pin 14 ejects, and cooperate with a pair of block 13 of front end, so that the dismounting of reduced size bearing housing.The size of what and specification of bearing housing kind is depended in the quantity of spring backing pin 14 and position.Big car body 3 corresponding lengthenings with roller bed 5 one sides, the principle of its lengthening is when dismounting maximum bearing housing 15, leave certain clearance between the cantilever pressure pin of the rear and front end of maximum bearing housing 15 and working roll end and the profile of tooth catcher carriage 9 mentioned later, with the move left and right of guaranteeing big car body 3 (present embodiment extend 740mm).Fix one by two cantilever pressure pins and the catcher carriage 9 that riser is formed in big car body 3 ends of lengthening and with the corresponding position of dolly longitudinal axis, it is lower than the height of profile of tooth catcher on the roller bed highly slightly, its objective is that profile of tooth catcher pulls down back (needn't adjust the dolly height), being placed directly on the catcher carriage 9, also is equally needn't adjust the dolly height during installation.Shown in Fig. 3,4,5 (duty when chain-dotted line partly is 3 rises of dolly body among the figure), in the little car body of this side, be provided with four carrying rollers of forming by rolling bearing 10 that are lower than trolley platform 2, so that hold up profile of tooth catcher 11, for holding up, the profile of tooth catcher that makes special-shaped size is level, when the carrying roller of four rolling bearings of design, select same axis according to profile of tooth catcher external diameter poor (is example with Φ 430-Φ 370=50mm), make two pairs of various outer diameter rolling bearings that one difference in height (present embodiment is 25mm) be arranged.As shown in Figure 6, the purpose of selecting four axis of rolling to make carrying roller is when the profile of tooth catcher is installed, and in order to make the keyway on the key 18 alignment work rollers in the profile of tooth catcher, can manually rotate the orientation that the profile of tooth catcher is adjusted key 18 freely easily.Be provided with catcher baffle plate 17 in the front and back of carrying roller 10, its objective is and block the profile of tooth catcher, make it axially not go here and there, and pull out or advance the profile of tooth catcher according to this, decide according to profile of tooth catcher length position of two baffle plates 17 before and after it.In addition, the size Selection of the width of baffle plate 17 and rolling bearing carrying roller must make and leave enough spaces between them, holds the profile of tooth catcher so that from then on two pressure pins of catcher carriage 9 insert.

In addition, seesawing of the medium and small car body 4 of the utility model also can be driven by hydraulic motor.On the big car body that the opposite side of roller bed 5 is not lengthened out, its dolly body platform 2 can be a monoblock flat board, also can be made up of two dull and stereotyped institutes that are positioned at the car body both sides and are parallel to longitudinal axis.

Bearing housing dismounting when being taken out of milling train with profile of tooth catcher 11 below is an example, sketches the operating process of changer.At first old working roll and standby new working roll are all hung on the working roll carriage 6 of changer central roll bed 5 by crane, big again car body 3 reaches working roll 12 places that intend changing bearing housing, dolly body 4 falling heads, reach profile of tooth and take over 11 belows, rising dolly relies on baffle plates 17 that profile of tooth catcher 11 is pulled out with carrying roller 10 picking-up profile of tooth catchers 11, (needn't adjust the dolly adjustable height) always and fall back on carriage 9 places, fall dolly, catcher is placed on the carriage 9.Little car body reaches bearing housing 15,16 belows, and alignment stops 13, backing pin 14 rise dolly body 4 and hold up bearing housings 15,16, and then little car body is opened backward, and bearing housing 15,16 is unloaded from working roll.At this moment, bigger car body is shifted to new working roll place, dolly body 4 is holding in the palm bearing housing (little overall height needn't be adjusted) forward, bearing housing is contained on the working roll, dolly body 4 descends then, retreats, and directly falls back on carriage 9 belows, rise again and hold up catcher 11, if catcher key 18 the orientation not right, then rotate catcher, the keyway on the alignment work roller (needn't adjust the dolly height), the working roll of directly catcher being packed into is then promptly finished the disassemble and assemble work of a bearing housing and catcher.

Claims (6)

1, a kind of multi-functional operation roll of mill bearing housing changer, main by the roller bed (5) that is used for the support works roller, roller bed (5) both sides rely on the big car body (3) of walking about hydraulic motor (1) along track (8), going up the little car body (4) that is used as lifting and seesaws that relies on hydraulic cylinder at big car body (3) forms, it is characterized in that on dolly body platform (2), being fixed with four blocks (13) that are used to place the maximum bearing housing of size (15), on the trolley platform (2) of block (13) inboard, be provided with some spring backing pin (14).

2, multi-functional operation roll of mill bearing housing changer according to claim 1 is characterized in that the platform (2) of little car body is made up of two dull and stereotyped institutes that are positioned at the car body both sides and parallel to the axis.

3,, it is characterized in that spring backing pin (14) is formed by being placed on the spring (21) in platform (2) hole and being positioned at the bearing pin (19) that its step on the spring (21) matches with gland (20) on being fixed on platform (2) plane according to claim 1,2 described multi-functional operation roll of mill bearing housing changers.

4, multi-functional operation roll of mill bearing housing changer according to claim 3, it is characterized in that the corresponding lengthening of big car body (3) with roller bed (5) one sides, fix a catcher carriage (9) in big car body (3) end of lengthening and with the corresponding position of dolly longitudinal axis, in the little car body (4) of this side, be provided with four carrying rollers (10) that are lower than trolley platform, be provided with catcher baffle plate (17) in the front and back of carrying roller (10).

5, multi-functional operation roll of mill bearing housing changer according to claim 4 is characterized in that carriage (9) is made up of two cantilever pressure pins and a riser, and it is lower than the height of profile of tooth catcher on the roller bed highly slightly.

6, multi-functional operation roll of mill bearing housing changer according to claim 4 is characterized in that carrying roller (10) is made up of rolling bearing.

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