CN220591125U - Automatic positioning device for assisting roll replacement of working roll - Google Patents

Abstract

The utility model discloses an automatic positioning device for assisting in roll changing of a working roll, which comprises a frame and two holding frame structures which are arranged on the frame and symmetrically distributed along an axis; the holding frame structure comprises a guide rail fixed on the frame, a sliding block arranged on the guide rail, a driving structure for driving the sliding block to move along the guide rail, a clamping part fixed on the sliding block and a first adjusting plate detachably connected with the clamping part. The driving structure carries out large-stroke rough adjustment, the adjusting plate realizes fine adjustment on the positioning of the working roller, and the positioning accuracy of the working roller is improved.

Description

Automatic positioning device for assisting roll replacement of working roll

Technical Field

The utility model relates to the field of roll changing devices of rolling mills, in particular to an automatic positioning device for assisting roll changing of working rolls.

Background

In order to avoid the deviation of the size and shape of the rolled material, the roller needs to be replaced in time after being used for a period of time. The auxiliary rolling mill roll changing device is adopted, so that roll changing operation can be facilitated, and roll changing time is shortened. The auxiliary rolling mill roll changing device comprises a holding frame structure, a bracket structure, a roll changing track, a roll changing trolley and the like. The holding frame structure comprises a large oil cylinder, a small oil cylinder, a sliding seat, a holding tile and the like. The universal coupling connected with the cradle is telescopic, and the working roller needs to be worn regularly for a period of time.

The existing auxiliary rolling mill roll-changing device has a stand-by structure and a bracket structure which are independent.

The bracket structure is shown in fig. 5, and comprises hydraulic cylinders 81 arranged on two sides and holding tiles 82 connected to the ends of piston rods of the hydraulic cylinders, and the hydraulic cylinders drive the holding tiles 82 to clamp and hold the working rolls from two sides.

The holding frame structure is shown in fig. 6, and comprises a stand column 61, a supporting plate 62 which is connected to the stand column in a sliding way, and a hydraulic cylinder for controlling the supporting plate to slide along the stand column, wherein an arc-shaped groove is arranged on the supporting plate 62 to position the working roller 7.

With the above structure, it has the following problems: due to inaccurate positioning of the oil cylinder, the problem that the working roller cannot be held accurately can be caused by adopting the structure.

Disclosure of Invention

The utility model aims to overcome the defect that the positioning of a working roller is inaccurate due to the fact that a holding frame in the existing working roller changing device is used for holding the working roller, and provides an automatic positioning device for assisting in changing the working roller.

The aim of the utility model is achieved by the following technical scheme:

the utility model provides an automatic positioning device for assisting in roll changing of a working roll, which comprises a frame and two holding frame structures which are arranged on the frame and symmetrically distributed along an axis;

the holding frame structure comprises a guide rail fixed on the frame, a sliding block arranged on the guide rail, a driving structure for driving the sliding block to move along the guide rail, a clamping part fixed on the sliding block and a first adjusting plate detachably connected with the clamping part.

In one possible design, the clamping part is provided with a first clamping end face, a second clamping end face and a third clamping end face which are sequentially connected from top to bottom, the second clamping end face is vertically arranged, and included angles among the first clamping end face, the third clamping end face and the second clamping end face are equal;

the first clamping end face and the second clamping end face are respectively provided with a first adjusting plate.

In one possible design, the frame is provided with a first bracket structure and a second bracket structure, the first bracket structure is located below the holding frame structure, and the first bracket structure and the second bracket structure are located on the same plane.

In one possible embodiment, the first and/or second carrier structure comprises a support part having two support surfaces which are arranged symmetrically along a symmetry axis and have an inclined support surface, and a second adjusting plate which is detachably connected to the support surfaces.

In one possible embodiment, the support surface of the first carrier structure is provided with a second adjusting plate at each end.

The utility model has the following advantages:

according to the scheme, the adjusting plate is detachably arranged on the clamping part, the positioning of the working roller is finely adjusted through the adjusting plate, the accurate adjustment of the positioning of the working roller is realized, and the problem that the positioning is inaccurate due to the fact that the oil cylinder is adopted in the prior art is solved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a work roll changing apparatus of the present utility model;

FIG. 2 is a front view of a work roll changing apparatus of the present utility model;

FIG. 3 is a view showing the installation state of the auxiliary roll changing device of the work roll changing device of the present utility model;

FIG. 4 is a side view of a work roll changing apparatus of the present utility model;

FIG. 5 is a schematic structural view of a prior art bracket structure;

fig. 6 is a schematic structural diagram of a conventional cradle structure.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model provides an automatic positioning device for assisting in roll changing of a working roll, which aims at solving the problem that an existing roll changing device cannot accurately hold the working roll due to inaccurate positioning of a hydraulic cylinder when the hydraulic cylinder is used for driving, so that accurate positioning of a holding frame is conveniently realized, and roll changing efficiency is improved. As shown in fig. 1 to 4, the work roll changing device comprises a frame 1 and two holding frame structures which are arranged on the frame and symmetrically distributed along an axis; when in use, the frame can be fixed on the section of the housing of the roller system structure by bolt pairs. The holding frame structure comprises a guide rail 21, a sliding block 22, a driving structure 23, a clamping part 24 and a first adjusting plate 25, wherein the guide rail 21 is fixed on the frame 1, the driving structure 23 drives the sliding block 22 arranged on the guide rail to move along the guide rail, the clamping part is fixed on the sliding block 22, the clamping part is arranged on one side of the two holding frame structures adjacent to each other, and the first adjusting plate is detachably connected with the clamping part.

The first adjusting plate is detachably connected with the clamping part, and when the roller is replaced, the locking of the working roller can be realized by manually fine-adjusting the first adjusting plate on the clamping part, so that the accuracy of locating the holding frame is improved.

The driving structure 23 can adopt a hydraulic cylinder, a pneumatic cylinder or a motor screw rod structure to realize the driving of the sliding block 22.

The first adjusting plate can be connected with the clamping part through bolts, so that the first adjusting plate can be fixed in a detachable mode.

The holding frame structure is used for fixing the upper working roller, in order to improve stability of the upper working roller, a first clamping end face 241, a second clamping end face 242 and a third clamping end face 243 which are sequentially connected from top to bottom are arranged on the clamping part 24, the second clamping end face is vertically arranged, and included angles among the first clamping end face, the third clamping end face and the second clamping end face are equal; the first clamping end face and the second clamping end face are respectively provided with a first adjusting plate. By adopting the holding frame structure, holding is realized from two sides of the working roller by the holding frame structures at two sides, and two first adjusting plates are respectively arranged at two sides, so that the stability of the fixing of the working roller is enhanced.

The prior auxiliary rolling mill roll-changing device has a holding frame structure and a bracket structure which are separately arranged. The bracket structure is heavy, and other rolling mill operations with other functions, such as oil-gas lubrication pipes, hydraulic pipes and the like, are blocked. In this regard, a further improvement is made on the basis of any of the above structures, that is, a first bracket structure and a second bracket structure are provided on the frame, the first bracket structure is located below the holding frame structure, and the first bracket structure 4 and the second bracket structure 5 are located on the same plane. The holding frame structure is utilized to realize holding of the upper working roller, the first bracket structure realizes bearing fixation of the lower working roller, and the second bracket structure realizes bearing fixation of the universal coupling. The holding frame structure and the bracket structure are simultaneously arranged on the same rack and are directly arranged below the holding frame, so that the volume of equipment is reduced, and the influence on the operation of other functions of the rolling mill is avoided.

Example 1: the first bracket structure and the second bracket structure can adopt a structure that an arc groove is arranged on a supporting plate 62, and the arc groove is utilized to realize the bearing fixation of the working roller or the universal coupling.

Example 2: the structure of example 1 has the same technical problem as the existing cradle structure, that is, the accurate positioning of the work roll or the universal joint cannot be realized, and in this case, the first bracket structure and the second bracket structure may also have a structure of a supporting portion 31 having an inclined supporting surface and a second adjusting plate 32 detachably connected to the supporting surface. And the second adjusting plate is adopted to realize positioning fine adjustment, so that the positioning accuracy of the working roller or the universal coupler is improved.

Because the lower working roll is long, the bearing surface of the lower working roll is generally required to have a certain length in order to realize the stability of fixing. In this regard, when the second adjusting plate 32 is used to achieve fine adjustment, in order to facilitate adjustment of the second adjusting plate 32, the second adjusting plate 32 on the first bracket structure is split into two and is respectively disposed at both ends of the bearing surface of the first bracket structure, as shown in fig. 1.

The working roll changing device with any structure can be applied to a four-roll reversible finishing mill driven by working rolls to assist roll changing. The components such as a roll changing track, a roll changing trolley and the like required by the working roll changing device can be realized by adopting the existing structure.

The holding frame structure and the bracket structure are integrated into a whole and symmetrically arranged by taking the roller as the center. The whole device has a simple structure, the bracket is convenient and quick to support the universal coupling, manual intervention is reduced, roll changing efficiency is improved, and yield is indirectly improved. When the lower working roll 72 is in operation, the lower working roll 72 falls on the second adjusting plate of the first bracket framework 4, and the roll changing position of the lower working roll 72 is a position relative to the working position, so that the lower working roll is directly fixed by the second adjusting plate, the upper working roll 71 can be held by a hydraulic cylinder after passing through the grinding roll, the holding frame is released when the roll is changed, the grinding roll at the working position of the upper roll is changed, and the adjustment and the positioning are inaccurate only by the hydraulic cylinder and cannot be locked. Therefore, the adjustment plate is manually adjusted, and the universal joint 73 is automatically supported when the roll is replaced after the adjustment.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. An automatic positioning device for assisting roll changing of a working roll comprises a frame and two holding frame structures which are arranged on the frame and symmetrically distributed along an axis; the method is characterized in that:

the holding frame structure comprises a guide rail fixed on the frame, a sliding block arranged on the guide rail, a driving structure for driving the sliding block to move along the guide rail, a clamping part fixed on the sliding block and a first adjusting plate detachably connected with the clamping part.

2. An automatic positioning device for assisting roll changing of a work roll according to claim 1, wherein: the clamping part is provided with a first clamping end face, a second clamping end face and a third clamping end face which are sequentially connected from top to bottom, the second clamping end face is vertically arranged, and included angles among the first clamping end face, the third clamping end face and the second clamping end face are equal;

the first clamping end face and the second clamping end face are respectively provided with a first adjusting plate.

3. An automatic positioning device for assisting roll changing of a work roll according to claim 1, wherein: the frame is provided with a first bracket structure and a second bracket structure, the first bracket structure is positioned below the holding frame structure, and the first bracket structure and the second bracket structure are positioned on the same plane.

4. An automatic positioning device for assisting roll changing of a work roll according to claim 3, wherein: the first bracket structure and/or the second bracket structure comprises a bearing part which is symmetrically arranged along a symmetry axis and provided with an inclined bearing surface and a second adjusting plate which is detachably connected to the bearing surface.

5. The automatic positioning device for assisting roll changing of a work roll according to claim 4, wherein: the two ends of the bearing surface of the first bracket structure are respectively provided with a second adjusting plate.

6. An automatic positioning device for assisting roll changing of a work roll according to claim 1, wherein: the first adjusting plate is connected with the clamping part through bolts.