CN219378429U - Balance beam type roll changing device - Google Patents

Abstract

The utility model relates to a balance beam type roll changing device, which belongs to the technical field of metallurgical equipment and comprises an I-shaped cross beam, one end of the cross beam is connected with a roll changing joint to fix a roll, the lower side of the middle part of the cross beam is provided with a weight balancing device, the weight balancing device comprises a screw rod, a driving device connected with the screw rod, a balance weight connecting seat forming a screw nut pair with the screw rod, a balancing weight connected with the balance weight connecting seat, and a roller wheel arranged on the balance weight connecting seat and hung at a cavity position between two wing plates of the cross beam, the balance weight connecting seat comprises a balance weight connecting seat body, the balance weight connecting seat body is provided with a first limit hole in a non-rotational symmetry mode, and a sliding block with the cross section size smaller than that of the first limit hole is arranged in the first limit hole so that the sliding block can move circumferentially, and the sliding block and the screw rod form the screw nut pair. The sliding block can circumferentially float, and the screw rod does not bear the pressure of the cross beam during storage, so that a special bracket is not required to be used for supporting during storage, and the sliding block can be directly stacked, and the use and maintenance cost is reduced.

Description

Balance beam type roll changing device

Technical Field

The utility model belongs to the technical field of metallurgical equipment, and relates to a balance beam type roll changing device.

Background

In mechanical equipment, especially metallurgical equipment, various rollers are used, which wear gradually during operation and which need to be replaced when worn to some extent.

The roll changing device mainly comprises a C-shaped hook type roll changing device, a balance beam type roll changing device and a roll changing trolley. The C-shaped hook type roller replacing device is suitable for an open and non-shielding environment above the roller; the roll changing trolley laterally changes rolls, is suitable for the conditions that the roll operation side or the transmission side is not shielded, and the foundation is suitable for installing the roll changing trolley; the balance beam type roll changing device does not need to be installed on the basis, and roll changing can be carried out from the side direction.

The balance beam type roll changing device generally adopts a screw rod to drive a balancing weight, so that the weight balance of the roll changing device during no-load and roll changing is realized. The two ends of the screw rod are arranged on the bearing seat, and the middle of the screw rod passes through the screw rod nut fixedly connected with the balancing weight, so that one screw rod is constrained by three points, the coaxiality is ensured, and the requirement on installation is high. The screw rod is easy to rotate inflexibly and even is blocked due to improper installation and use.

In addition, when the roll changing device is stored, a special bracket is needed, so that the cost is increased; and the balance beam can press the weight on the screw rod without directly stacking the support, so that the screw rod can deform to influence the subsequent use.

Disclosure of Invention

In view of the above, the present utility model aims to provide a balance beam type roll changing device, which can be directly stacked during storage, and no special support is needed for supporting.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a balance beam formula roll change device, including the crossbeam that is the I shape, the one end of crossbeam is connected with roll change joint in order to fix the roller, the middle part downside of crossbeam is equipped with weight balance device, weight balance device includes the lead screw, drive arrangement who links to each other with the lead screw, form the vice counter weight connecting seat of screw nut with the lead screw, the balancing weight that links to each other with the counter weight connecting seat, install on the counter weight connecting seat and hang the gyro wheel in the cavity position between two pterygoid lamina of crossbeam, the counter weight connecting seat includes the counter weight connecting seat body, the counter weight connecting seat body has non-rotationally symmetrical first spacing hole, be equipped with the slider that cross dimension is less than first spacing hole in the first spacing hole so that slider circumference can the drunkenness, slider and lead screw form screw nut pair.

Optionally, the slider includes the slider body, and the slider body has seted up the spacing hole of second, and the middle part in the spacing hole of second has and is the cylindrical hole of cross arrangement and perpendicular to crossbeam pterygoid lamina with the lead screw axis, is equipped with rather than sliding connection's cylindrical nut in the cylindrical hole, and cylindrical nut forms the lead screw nut pair with the lead screw, and the minimum footpath in the spacing hole of second is greater than the external diameter of lead screw.

Optionally, the first limiting hole is rectangular, and one side surface of the first limiting hole is parallel to the beam wing plate.

Optionally, the both ends of first spacing hole are fixed with first slide, and the both ends of slider are fixed with the second slide with first slide sliding connection, and the circumference of slider is not salient to the second slide.

Optionally, the pointer is installed on the counter weight connecting seat, and the scale is installed on the crossbeam to the position mark no-load of scale through the pointer and the position of balancing weight under the roll change two kinds of states.

Optionally, the driving device is a gear motor, a hydraulic motor or a manually-adjusted hand wheel.

Optionally, the driving device is located at one end of the screw rod close to the roll changing joint.

Optionally, at least one fastening bolt is arranged in the circumferential direction of the roll changing joint to fix the roll.

Optionally, 2 lifting lugs are arranged on the upper side of the beam at intervals, and are connected with lifting slings, and the lifting slings are steel wire rope lifting slings or chain lifting slings.

The utility model has the beneficial effects that: the sliding blocks can move circumferentially, so that the screw rod does not bear the pressure of the cross beam during storage, and therefore, the screw rod is not required to be supported by a special bracket during storage, can be directly stacked, reduces the use and maintenance cost, and has the characteristics of simple structure, less investment and long service life.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.

Drawings

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in the following preferred detail with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of a balance beam roll changer of the present utility model;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 2;

fig. 4 is another structure of the B-B cross-sectional view of fig. 2.

Reference numerals: roll changing joint 1, cross beam 2, weight balancing device 3, fastening bolt 4, lead screw 5, balancing weight 6, counter weight connecting seat 7, gyro wheel 8, slider subassembly 9, drive arrangement 10, bearing frame 11, slider 12, first slide 13-1, second slide 13-2, cylindrical nut 14, pointer 15, scale 16, lug 17, first spacing hole 18, second spacing hole 19.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present utility model by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the utility model; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present utility model, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-4, a balance beam type roll changing device comprises an i-shaped cross beam 2, one end of the cross beam 2 is connected with a roll changing joint 1 to fix a roll, a weight balancing device 3 is arranged at the lower side of the middle part of the cross beam 2, the weight balancing device 3 comprises a screw 5, a driving device 10 connected with the screw 5, a balance weight connecting seat 7 forming a screw nut pair with the screw 5, a balance weight 6 connected with the balance weight connecting seat 7, a roller 8 arranged on the balance weight connecting seat 7 and hung at a cavity position between two wing plates of the cross beam 2, the balance weight connecting seat 7 comprises a balance weight connecting seat body, the balance weight connecting seat body is provided with a first limit hole 18 with non-rotational symmetry, a sliding block 12 with a cross section size smaller than that of the first limit hole 18 is arranged in the first limit hole 18 so that the sliding block 12 can move circumferentially, and the sliding block 12 and the screw 5 form a screw nut pair. The upper side of the beam 2 is provided with 2 lifting lugs 17 at intervals, and the lifting lugs 17 are connected with lifting appliances, which can be steel wire rope lifting appliances or chain lifting appliances. At least one fastening bolt 4 is provided in the circumferential direction of the roll change joint 1 to fix the roll.

The sliding block 12 can circumferentially float, so that the constraint point of the screw rod 5 is reduced, the rotation flexibility of the screw rod 5 is improved, and the screw rod 5 does not bear the pressure of the cross beam 2 during storage, so that a special bracket is not needed during storage, the sliding block can be directly stacked, the use and maintenance cost is reduced, and the sliding block has the characteristics of simple structure, less investment and long service life.

In order to further improve the rotation flexibility of the screw rod, the utility model also increases a degree of freedom, and the realization mode is as follows: the sliding block 12 is arranged into a split structure, the sliding block 12 comprises a sliding block body, a second limiting hole 19 is formed in the sliding block body, a cylindrical hole which is arranged in a crisscross manner with the axis of the screw rod and perpendicular to the wing plate of the cross beam is formed in the middle of the second limiting hole 19, a cylindrical nut which is connected with the cylindrical hole in a sliding manner is arranged in the cylindrical hole, the cylindrical nut and the screw rod 5 form a screw rod nut pair, and the minimum diameter of the second limiting hole 19 is larger than the outer diameter of the screw rod 5. By the structure, when the lead screw 5 is arranged in a non-parallel manner with the cross beam 2 and an included angle is formed, the rotation flexibility of the lead screw 5 can be ensured.

The cross section of the first limiting aperture 18 of the present utility model may be polygonal, preferably rectangular, and when rectangular, one side of the first limiting aperture 18 is parallel to the wing of the cross beam 2.

In order to maintain and reduce the cost, the utility model adds a wear-resistant structure at the easily worn part, namely, the two ends of the first limiting hole 18 are fixed with the first sliding plate 13-1, the two ends of the sliding block 12 are fixed with the second sliding plate 13-2 which is in sliding connection with the first sliding plate 13-1, the second sliding plate 13-2 does not protrude out of the circumference of the sliding block 12, and the first sliding plate 13-1 and the second sliding plate 13-2 are preferably in a detachable installation mode.

In order to facilitate adjustment of the roll changing device, the utility model is provided with the pointer 15 on the counterweight connecting seat 7, and the cross beam 2 is provided with the scale 16, so that the position of the counterweight 6 in the idle state and the roll changing state is marked by the position of the pointer 15 pointing to the scale. By the arrangement mode, an operator can quickly adjust the roll changing device to reach an equilibrium state.

The driving device 10 of the utility model can be a gear motor, a hydraulic motor or a hand wheel which is manually adjusted, and the installation position of the driving device 10 is preferably positioned at one end of the screw rod 5 close to the roll changing joint 1. By the arrangement mode, operators can move the balancing weights and observe the balance state of the rollers, so that the number of operators is reduced.

Examples

A balance beam type roll changing device comprises a roll changing joint 1, a cross beam 2 and a weight balancing device 3. One end of the cross beam 2 is connected with a roll changing joint 1, and a plurality of fastening bolts 4 for clamping rollers are arranged on the roll changing joint 1. The upper portion of the crossbeam is provided with 2 lifting lugs 17, and the lifting lugs 17 are connected with a steel wire rope sling or a chain type sling. The lower part of the cross beam 2 is provided with a weight balancing device 3. The weight balancing device 3 comprises a screw 5, a balancing weight 6, a balancing weight connecting seat 7, a roller 8, a sliding block component 9 and a screw driving device 10. The weight balance device 3 is hung on the wing plate at the lower part of the cross beam through the rollers 8, and 4 rollers 8 are preferably arranged. The lead screw 5 passes through the slide block assembly 9, and two ends of the lead screw are fixed on the lower side of the cross beam 2 through bearing blocks 11.

The sliding block assembly 9 comprises a sliding block 12, a first sliding plate 13-1 and a second sliding plate 13-2, wherein the sliding block 12 is positioned in a first limiting hole 18 of the counterweight connecting seat 7, the first sliding plate 13-1 is arranged at two ends of the sliding block 12, the second sliding block 13-2 is arranged on the inner wall of the first limiting hole 18, and a certain gap is arranged between the first limiting hole 18 and the sliding block 12 in the circumferential direction, so that the sliding block 12 can slide in the first limiting hole 18 in the circumferential direction. The slider is connected with the lead screw has two modes:

mode one: the center of the slide block 12 is tapped with a threaded hole, and the screw 5 passes through the threaded hole of the slide block 12. When the weight balance device 3 moves along the screw rod 5, the sliding block 12 can move in the first limiting hole 18 in the circumferential direction, so that the screw rod 5 is only limited by the bearing seats 11 at the two ends, and the rotation is smooth and flexible.

Mode two: the center of the sliding block 12 is drilled with a round hole, a cylindrical nut 14 is arranged in the round hole, and the screw rod 5 passes through a threaded hole formed in the cylindrical nut 14. When the weight balance 3 moves along the screw 5, the cylindrical nut 14 can rotate around its axis in addition to the circumferential movement of the slide 12. When the lead screw 5 is arranged in a non-parallel manner with the cross beam 2 and an included angle is formed, the flexible rotation of the lead screw 5 can be ensured.

The other advantage that the two ways brought above is that when the roll changing device is idle and not in use, a special bracket is not needed, the cross beam 2 can be pressed on the weight balancing device 3, at the moment, the screw rod 5 moves along with the cross beam 2 under the drive of the bearing seats 11 at the two ends, the sliding block 12 in the middle moves along with the screw rod 5, and the screw rod 5 is guaranteed not to bear force in the middle, so that the roll changing device cannot deform.

One end of the screw rod 5 is connected with a driving device 10, and the driving device 10 can be a hand wheel which is manually adjusted, and can also be a gear motor or a hydraulic motor. The driving device 10 is preferably installed at the roll changing joint side, and an operator can observe the balance state of the roll while moving the balancing weight, thereby reducing the number of operators.

The pointer 15 is arranged on the counterweight connecting seat 7, the staff 16 is arranged on the cross beam, thus the positions of the counterweights 6 in the idle state and the roller changing state can be marked, and an operator can quickly adjust the roller changing device to reach the balance state.

The novel equipment has simple and reasonable structure, fewer constraint points of the screw rod, flexible rotation and low requirements on processing and mounting precision; the equipment is stored without a special support, can be directly stacked, solves the problem that a screw rod of a counterweight type balancing Liang Huangun device is easy to deform and is blocked, ensures that a roller changing device is stored without a special support, and reduces implementation cost.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present utility model, which is intended to be covered by the claims of the present utility model.

Claims (9)

1. The utility model provides a balance beam formula roll change device, is including the crossbeam that is the I shape, and the one end of crossbeam is connected with roll change joint in order to fix the roller, and the middle part downside of crossbeam is equipped with weight balance device, and weight balance device includes the lead screw, the drive arrangement who links to each other with the lead screw, forms the vice counter weight connecting seat of lead screw nut with the lead screw, the balancing weight that links to each other with the counter weight connecting seat, install on the counter weight connecting seat and hang the gyro wheel in the cavity position between two pterygoid lamina of crossbeam, its characterized in that: the counterweight connecting seat comprises a counterweight connecting seat body, the counterweight connecting seat body is provided with a first limit hole with non-rotational symmetry, a sliding block with the cross dimension smaller than that of the first limit hole is arranged in the first limit hole so that the sliding block can move circumferentially, and the sliding block and the screw rod form a screw-nut pair.

2. A balance beam roll change apparatus according to claim 1, wherein: the slider includes the slider body, and the slider body has seted up the spacing hole of second, and the middle part in the spacing hole of second has and is the cylindrical hole of cross arrangement and perpendicular to crossbeam pterygoid lamina with the lead screw axis, is equipped with rather than sliding connection's cylindrical nut in the cylindrical hole, and cylindrical nut forms the lead screw nut pair with the lead screw, and the minimum footpath in the spacing hole of second is greater than the external diameter of lead screw.

3. A balance beam roll change apparatus according to claim 1, wherein: the first limiting hole is rectangular, and one side face of the first limiting hole is parallel to the wing plate of the cross beam.

4. A balance beam roll change apparatus according to claim 1, wherein: the two ends of the first limiting hole are fixedly provided with first sliding plates, the two ends of the sliding block are fixedly provided with second sliding plates which are in sliding connection with the first sliding plates, and the second sliding plates do not protrude out of the circumference of the sliding block.

5. A balance beam roll change apparatus according to claim 1, wherein: the counter weight connecting seat is provided with a pointer, and the cross beam is provided with a scale, so that the pointer points to the position of the counter weight in the two states of no-load and roll changing.

6. A balance beam roll change apparatus according to claim 1, wherein: the driving device is a gear motor, a hydraulic motor or a hand wheel which is manually adjusted.

7. A balance beam roll change apparatus according to claim 1, wherein: the driving device is positioned at one end of the screw rod, which is close to the roll changing joint.

8. A balance beam roll change apparatus according to claim 1, wherein: at least one fastening bolt is arranged on the circumference of the roll changing joint so as to fix the roll.

9. A balance beam roll change apparatus according to claim 1, wherein: the upper side interval of crossbeam is equipped with 2 lugs, and the lug is connected with the hoist, and the hoist is wire rope hoist or chain type hoist.