CN219990947U - Backing roll changing device - Google Patents

Abstract

The utility model relates to the field of steel rolling equipment, in particular to a supporting roller replacing device. The utility model discloses a supporting roller replacing device which comprises a hanging bracket, a counter weight truss and an intermediate shaft, wherein the counter weight truss is in a straight strip shape, the lower part of one end of the counter weight truss is provided with a balancing weight, the intermediate shaft is assembled at the other end of the counter weight truss and extends along the length direction of the counter weight truss, one end of the intermediate shaft, which is far away from the balancing weight, is provided with a connecting piece connected with the shaft end of a roller, the counter weight truss is provided with a displacement adjusting device, the hanging bracket is connected with the displacement adjusting device, and the displacement adjusting device is used for driving the length direction of the hanging bracket to move between two ends of the hanging bracket. The advantages are that: structural design is reasonable, utilizes the balancing weight to come balanced backing roll to can be according to the roller regulation of different weight lifts by crane the focus, the more efficient realization roll change has reduced manual operation's degree of difficulty, has reduced the potential safety hazard.

Description

Backing roll changing device

Technical Field

The utility model relates to the field of steel rolling equipment, in particular to a supporting roller replacing device.

Background

In the field of metallurgical rolling equipment, the roll system of rolling mill equipment is generally composed of a supporting roll, a middle roll and a working roll, and is an important component of the rolling mill equipment. The roller system can be worn and damaged differently in the long-term use process of the equipment, maintenance or replacement is needed at the moment, manual pushing and pulling are adopted in the prior art, but the roller system is difficult to realize due to the large mass of the roller, and great potential safety hazards exist; or the connecting rod is used together with the balancing weight, the lifting lug is welded on the connecting rod, the crane needs to be lifted at the balance position of the weight of the roller before lifting, the device can incline at the moment, manual matching is needed, and a large potential safety hazard exists.

Disclosure of Invention

The utility model aims to provide a supporting roller replacing device which effectively overcomes the defects of the prior art.

The technical scheme for solving the technical problems is as follows:

the utility model provides a backing roll-changing device, includes gallows, counter weight truss and jackshaft, the counter weight truss is straight strip, and the balancing weight is equipped with to the lower part of its one end, the jackshaft assembly is in the other end of counter weight truss, and follow the length direction of counter weight truss extends, the jackshaft is kept away from the one end of balancing weight is equipped with the connecting piece of being connected with the roll axle head, be equipped with displacement adjusting device on the counter weight truss, the gallows with displacement adjusting device connects, displacement adjusting device is used for driving the length direction of gallows removes between its both ends.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the connecting piece is the connecting axle, this connecting axle one end with the screw threaded connection of roll tip, the other end inserts in the shaft hole of jackshaft corresponding end adaptation, the shaft hole side end is equipped with along the jackshaft radial is along the screw that stretches to the surface, the screw thread be equipped with in the screw with the first screw rod that the jackshaft supported.

Further, the jackshaft is kept away from detachably is equipped with the positioning disk on the one end periphery of balancing weight, follow on the periphery of positioning disk the axial of jackshaft is fixed with towards the locating plate that the roll extends, the tip of roll is fixed with the locating pin along its axial, the tip of locating plate be equipped with the draw-in groove of locating pin grafting.

Further, a threaded hole extending to an inner hole of the intermediate shaft is formed in the positioning disc along the radial direction of the intermediate shaft, and a second screw rod propped against the surface of the intermediate shaft is assembled in the threaded hole in a threaded mode.

Further, the positioning plate is provided with a handrail.

Further, the other end of the counterweight truss is provided with a mounting frame which extends vertically downwards, and a bearing seat which is coaxially assembled with the intermediate shaft is arranged on the mounting frame.

Further, the mounting frame is provided with a swing speed reducing motor in transmission connection with one end, close to the balancing weight, of the intermediate shaft.

Further, displacement adjusting device includes lead screw, nut seat and servo motor, the lead screw rotatable assemble in the upper end of counter weight truss, and follow the length direction of counter weight truss extends, the nut seat spin in on the lead screw, servo motor with the one end transmission of lead screw is connected, the gallows with the nut seat is connected fixedly.

Further, the counter weight truss includes the truss girder that the longitudinal section is "worker" style of calligraphy, the gallows include curb plate, the axle of lifting by crane and two gyro wheels of both sides, two the curb plate respectively vertical set up in the both sides of truss girder, and connect fixedly through linking the roof beam between the two, the axle of lifting by crane is located the top of truss girder to connect perpendicularly in both sides between the upper end of curb plate, two the gyro wheel respectively rotatable assemble in both sides the lower extreme inboard of curb plate, and the two roll support respectively in the both sides of truss girder lower extreme, the nut seat is fixed in both sides between the curb plate.

Further, gravity center labels matched with rollers of different specifications are arranged on one side of the counterweight truss at intervals along the length direction of the counterweight truss.

The beneficial effects of the utility model are as follows: structural design is reasonable, utilizes the balancing weight to come balanced backing roll to can be according to the roller regulation of different weight lifts by crane the focus, the more efficient realization roll change has reduced manual operation's degree of difficulty, has reduced the potential safety hazard.

Drawings

FIG. 1 is a schematic view of a backup roll changing apparatus of the present utility model;

fig. 2 is a cross-sectional view of the structure of the A-A plane in fig. 1.

In the drawings, the list of components represented by the various numbers is as follows:

1. a hanging bracket; 2. a counterweight truss; 3. an intermediate shaft; 4. balancing weight; 5. a displacement adjusting device; 6. a positioning plate; 7. a swing speed reducing motor; 8. gravity center label; 11. a side plate; 12. a hoisting shaft; 13. a roller; 31. a connecting piece; 41. a mounting frame; 42. a bearing seat; 51. a screw rod; 52. a nut seat; 53. a servo motor; 61. a positioning plate; 62. an armrest.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

Examples: as shown in fig. 1, the roller replacing device for supporting rollers in this embodiment includes a hanger 1, a counterweight truss 2 and an intermediate shaft 3, the counterweight truss 2 is in a straight shape, a counterweight 4 is mounted at the lower portion of one end of the counterweight truss 2, the intermediate shaft 3 is assembled at the other end of the counterweight truss 2 and extends along the length direction of the counterweight truss 2, a connecting piece 31 connected with the end of a roller shaft is disposed at one end of the intermediate shaft 3 away from the counterweight 4, a displacement adjusting device 5 is assembled on the counterweight truss 2, the hanger 1 is connected with the displacement adjusting device 5, and the displacement adjusting device 5 is used for driving the length direction of the hanger 1 to move between two ends of the hanger.

The actual operation process is as follows:

the whole device is lifted by crane to roll replacement position when balanced state, then will be connected jackshaft 3's one end and roll axle head through connecting piece 31, afterwards, displacement adjusting device 5 drives gallows 1 and removes at counter weight truss 2, remove to the whole device and together with the focus position of roll, namely reach the balanced position of roll replacement, it can to begin to hoist and mount the roll replacement, whole device structural design is reasonable, utilize balancing weight 4 to come balanced backing roll, and can adjust the lifting center of gravity according to the roller of different weight, more efficient realization roll replacement, the degree of difficulty of manual operation has been reduced, the potential safety hazard has been reduced.

As a preferred embodiment, the connecting member 31 is a connecting shaft, one end of the connecting shaft is in threaded connection with a screw hole at the end of the roller, the other end of the connecting shaft is inserted into a shaft hole adapted to the corresponding end of the intermediate shaft 3, a screw hole extending to the surface along the radial direction of the intermediate shaft 3 is provided at the side end of the shaft hole, and a first screw (denoted by a in the figure) abutting against the intermediate shaft 3 is threaded in the screw hole.

In the above embodiment, the intermediate shaft 3 is connected and assembled with the shaft end of the roller through the connecting shaft, one end of the connecting shaft is in threaded connection with the shaft end of the roller, then the shaft hole of the shaft end of the intermediate shaft 3 is aligned with the connecting shaft for insertion, and then the connecting shaft is locked through the first screw rod, so that the assembly mode is quick and convenient.

As a preferred embodiment, a positioning plate 6 is detachably mounted on the outer periphery of one end of the intermediate shaft 3 away from the balancing weight 4, a positioning plate 61 extending towards the roller is fixed on the outer periphery of the positioning plate 6 along the axial direction of the intermediate shaft 3, a positioning pin is fixed on the end of the roller along the axial direction of the roller, and a clamping groove spliced with the positioning pin is formed in the end of the positioning plate 61.

In the above embodiment, the positioning disc 6 and the positioning plate 61 are designed to fix the positioning disc 6 and the roller, so as to avoid unsafe accidents in the process of changing the roller due to rotation of the roller relative to the intermediate shaft 3, specifically, after the connecting shaft is assembled with the shaft end of the roller, the connecting shaft is adjusted before the shaft end of the intermediate shaft 3 is inserted, the clamping groove at the end of the positioning plate 61 on the positioning disc 6 is aligned with the positioning pin on the roller, then the pushing device integrally moves the intermediate shaft 3 to the connecting shaft to be spliced with the intermediate shaft 3, and meanwhile, the positioning pin is inserted into the clamping groove, so that the intermediate shaft 3 and the roller are connected into a whole, and the part of the intermediate shaft does not rotate relatively.

As a preferred embodiment, the positioning disk 6 is provided with a threaded hole extending to the inner hole thereof in the radial direction of the intermediate shaft 3, and a second screw (denoted by b in the figure) is screwed into the threaded hole against the surface of the intermediate shaft 3.

In the above embodiment, the positioning disc 6 is detachably connected with the corresponding end of the intermediate shaft 3 by adopting the second screw tightening mode, the assembly ratio between the two is quick and convenient, and meanwhile, the position of the positioning disc 6 can be flexibly adjusted according to the actual situation, so that the positioning disc is very convenient.

More preferably, the positioning plate 6 is provided with a handrail 62, and the handrail 62 is used for applying force to the positioning plate 6, so that the intermediate shaft 3 can be pushed to move in the axial direction until the shaft end is spliced with the connecting shaft.

As a preferred embodiment, the other end of the counterweight truss 2 is provided with a vertically downward extending mounting frame 41, and the mounting frame 41 is provided with a bearing seat 42 coaxially assembled with the intermediate shaft 3.

In the above embodiment, the design of the mounting frame 41 and the bearing housing 42 facilitates stable assembly of the intermediate shaft 3.

As a preferred embodiment, the mounting frame 41 is provided with a swing gear motor 7 in driving connection with one end of the intermediate shaft 3 near the balancing weight 4.

In the above embodiment, when the intermediate shaft 3 is in butt joint with the roller, the positioning plate 61 may have a condition of not aligning with the positioning pin in angle, at this time, the intermediate shaft 3 and the positioning disk 6 are driven to rotate by operating the swing gear motor 7, so that the clamping groove on the positioning plate 61 aligns with the positioning pin on the roller, and then, axial thrust is applied to the positioning disk 6, so that the intermediate shaft 3 can be moved to be spliced with the connecting shaft, meanwhile, the clamping groove of the positioning plate 61 aligns with the positioning pin of the roller to be clamped, the design of the swing gear motor 7 can reduce the difficulty of rotation of the intermediate shaft 3, and the operation is more flexible and simple.

As a preferred embodiment, the displacement adjusting device 5 includes a screw rod 51, a nut seat 52 and a servo motor 53, the screw rod 51 is rotatably assembled at the upper end of the counterweight truss 2 and extends along the length direction of the counterweight truss 2, the nut seat 52 is screwed on the screw rod 51, the servo motor 53 is in transmission connection with one end of the screw rod 51, and the hanger 1 is fixedly connected with the nut seat 52.

In the above embodiment, the servo motor 53 drives the screw rod 51 to rotate, and the nut seat 52 is fixedly connected with the hanger 1, so that the nut seat 52 integrally drives the hanger 1 to move along the screw rod 51, that is, the hanger 1 integrally moves along the length direction of the counterweight truss 2, thereby adjusting the gravity center of the integral hoisting, achieving hoisting balance (roll changing balance), the displacement adjusting device 5 is rapid and quick to adjust, the accuracy is high, and after adjustment, the position of the hanger 1 is relatively stable, and no offset occurs.

As a preferred embodiment, as shown in fig. 2, the counterweight truss 2 includes a truss girder with an "i" shaped longitudinal section, the hanger 1 includes two side plates 11, a lifting shaft 12 and two rollers 13, the two side plates 11 are vertically disposed on two sides of the truss girder, and are connected and fixed by a connecting beam, the lifting shaft 12 is disposed above the truss girder and is vertically connected between upper ends of the side plates 11 on two sides, the two rollers 13 are rotatably assembled on inner sides of lower ends of the side plates 11 on two sides, and are rotatably supported on two sides of the lower end of the truss girder, and the nut seat 52 is fixed between the side plates 11 on two sides.

In the embodiment, the hanging bracket 1 adopts a combined structure, so that the production and the assembly are convenient, and meanwhile, the relative movement adjustment is carried out between the hanging bracket 1 and the truss girder in a rolling mode, so that the adjustment is flexible and convenient.

As a preferred embodiment, one side of the counterweight truss 2 is provided with gravity center labels 8 which are matched with rollers of different specifications at intervals along the length direction.

In the above embodiment, the gravity center label 8 is set according to the roll systems (which may be rolls or function rolls such as backup rolls) of various types of common rolling mill equipment, and the position of the gravity center label is the position of the roll changing gravity center of the corresponding roll body, so that when the balance is adjusted, the purpose of adjusting the balance can be achieved only by operating the hanger 1 to move above the corresponding gravity center label 8 according to the type of the roll, and the adjustment is more convenient and faster.

Generally, an indicator is provided at the lower end of the hanger 1, and the hanger 1 is moved along the weight truss 2 to the lower end thereof, and the indicator corresponds to one of the required gravity center labels 8, thereby achieving the purpose of balance adjustment.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (9)

1. The utility model provides a backing roll change gear which characterized in that: the device comprises a hanging bracket (1), a counterweight truss (2) and an intermediate shaft (3), wherein the counterweight truss (2) is in a straight strip shape, the lower part of one end of the counterweight truss is provided with a balancing weight (4), the intermediate shaft (3) is assembled at the other end of the counterweight truss (2) and extends along the length direction of the counterweight truss (2), one end, far away from the balancing weight (4), of the intermediate shaft (3) is provided with a connecting piece (31) connected with the end of a roller shaft, the counterweight truss (2) is provided with a displacement adjusting device (5), the hanging bracket (1) is connected with the displacement adjusting device (5), and the displacement adjusting device (5) is used for driving the length direction of the hanging bracket (1) to move between two ends of the hanging bracket. The utility model discloses a roll, including jackshaft (3), locating plate (61) are fixed with on the periphery of jackshaft (3), jackshaft (3) keep away from detachably is equipped with positioning disk (6) on the one end periphery of balancing weight (4), follow on the periphery of positioning disk (6) the axial of jackshaft (3) is fixed with orientation locating plate (61) that the roll extends, the tip of roll is fixed with the locating pin along its axial, the tip of locating plate (61) be equipped with the draw-in groove of locating pin grafting.

2. A back-up roll changing apparatus according to claim 1, wherein: the connecting piece (31) is a connecting shaft, one end of the connecting shaft is in threaded connection with a screw hole at the end part of the roller, the other end of the connecting shaft is inserted into a shaft hole matched with the corresponding end of the intermediate shaft (3), the side end of the shaft hole is provided with a screw hole extending to the surface along the radial direction of the intermediate shaft (3), and a first screw rod propped against the intermediate shaft (3) is assembled in the screw hole.

3. A back-up roll changing apparatus according to claim 2, wherein: the positioning disc (6) is provided with a threaded hole extending to an inner hole of the positioning disc along the radial direction of the intermediate shaft (3), and a second screw rod propped against the surface of the intermediate shaft (3) is assembled in the threaded hole in a threaded manner.

4. A back-up roll changing apparatus according to claim 3, wherein: an armrest (62) is arranged on the positioning disk (6).

5. A back-up roll changing apparatus according to claim 2, wherein: the other end of the counterweight truss (2) is provided with a mounting frame (41) which extends vertically downwards, and a bearing seat (42) which is coaxially assembled with the intermediate shaft (3) is arranged on the mounting frame (41).

6. A back-up roll changing apparatus according to claim 5, wherein: the installation frame (41) is provided with a swing gear motor (7) in transmission connection with one end of the intermediate shaft (3) close to the balancing weight (4).

7. A backup roll changing apparatus according to any one of claims 1 to 6, characterized in that: the displacement adjusting device (5) comprises a screw rod (51), a nut seat (52) and a servo motor (53), wherein the screw rod (51) is rotatably assembled at the upper end of the counterweight truss (2) and extends along the length direction of the counterweight truss (2), the nut seat (52) is screwed on the screw rod (51), the servo motor (53) is in transmission connection with one end of the screw rod (51), and the hanging bracket (1) is fixedly connected with the nut seat (52).

8. A back-up roll changing apparatus according to claim 7, wherein: the counterweight truss (2) comprises truss girders with H-shaped longitudinal sections, the hanging bracket (1) comprises side plates (11) on two sides, a lifting shaft (12) and two rollers (13), the two side plates (11) are respectively vertically arranged on two sides of the truss girders and are fixedly connected through connecting beams, the lifting shaft (12) is positioned above the truss girders and is vertically connected between the upper ends of the side plates (11) on two sides, the two rollers (13) are respectively rotatably assembled on the inner sides of the lower ends of the side plates (11) on two sides, the two rollers are respectively rotatably supported on two sides of the lower ends of the truss girders, and the nut seat (52) is fixed between the side plates (11) on two sides.

9. A backup roll changing apparatus according to any one of claims 1 to 6, characterized in that: and gravity center labels (8) matched with rollers of various specifications are arranged on one side of the counterweight truss (2) at intervals along the length direction of the counterweight truss.