CN218656735U - Flyweight device suitable for removing large-size round billet cutting burls - Google Patents

Abstract

A flyweight device suitable for removing cutting nodules of large-size round billets is used for removing the cutting nodules on continuous casting round billets. The flyweight device suitable for removing the large-size round billet cutting burls comprises a flyweight, wherein one end of the flyweight is provided with a limiting pin hole, and the end surface of the other end of the flyweight is a special-shaped surface; the special-shaped surface is formed by a plurality of buses which are distributed along the hole axis direction of the limiting pin hole; in a plane perpendicular to the hole axis of the limiting pin hole, the bus is a circular curve, the distance from the bus to the hole axis of the limiting pin hole is S, the minimum distance from the continuous casting billet to the hole axis of the limiting pin hole is L, and S is less than L. The utility model discloses install on the continuous casting billet ejection roll table, at the continuous casting billet ejection in-process, can adopt the flyweight hammer to pound the mode to the head end and the tail end of continuous casting billet and will cut the tumour and get rid of, through above-mentioned structural design, the utility model discloses well flyweight is rotatory can be when not causing continuous casting billet surface damage, will cut the tumour and get rid of completely.

Description

Flyweight device suitable for removing large-size round billet cutting burls

Technical Field

The utility model relates to a metallurgical technology field especially relates to continuous casting technical field, and more specifically says, in particular to flyweight device suitable for get rid of big specification round billet cutting tumor.

Background

In the production process of continuous casting steel in modern steel works, a continuous casting blank generally undergoes flame cutting after passing through a withdrawal and straightening machine, namely flame cutting, and the flame cutting refers to continuous casting blank flame cutting.

In the prior art, the cutting is basically realized by flame cutting for square or rectangular blanks with the specification of more than 180mm and round blanks with the diameter of more than 180 mm. In the process of fire cutting and breaking operation, no matter what gas sources such as acetylene, methane and the like are adopted, liquid cutting molten steel is inevitably generated, the liquid cutting molten steel is adhered to the lower part of a cutting surface to form cutting nodules after being cooled, and if the cutting nodules cannot be cleaned in time, blanks with the cutting nodules can be directly transferred to the next process (a steel rolling mill). The cutting burls remaining on the continuous casting billet (billet with cutting burls) cannot be removed in the heating process and the high-pressure water treatment process before rolling, and if the continuous casting billet burls enter the rolling mill, adverse consequences can be caused, and the adverse consequences are mainly represented as follows: 1. the cutting nodules can damage the surface of the roller; 2. the cutting nodules are rolled, embedded into the surface of the rolled piece and extended, resulting in the formation of metallurgical defects such as heavy skin and grooves on the surface of the rolled piece.

Because of the limitation of specification, site and equipment structure, a slab caster is generally provided with a deburring machine, while a multi-machine multi-strand round billet caster generally does not adopt a similar means, but along with the expansion of the specification of the caster, the requirement of the yield of the subsequent process is improved, and the influence of cutting nodules begins to become an important reason for improving the technical and economic indexes of a steel mill.

The slab caster has enough width and flow spacing, enough place can arrange the flyweight formula burr-grinding machine, and the round billet caster is because arranging compactly, the space is narrow and small, and general multithread is arranged, so do not design the burr-grinding machine, because the casting blank is circular, the lower part adhesion cutting tumor region is curved, can't hit the cutting tumor through conventional burr-grinding machine flyweight line type arrangement mode, therefore can't realize burring and cutting tumor.

Since the strip-end rolling of the continuous casting billet can seriously affect the yield of the steel and even possibly cause damage to the rolling mill, in order to solve the two problems, the cutting edge must be ground or cut off in the finishing process of the continuous casting billet.

Since the beginning of this century, there are two general ideas around the removal of cutting nodules, one is scraper type to cut the nodule machine, one is the flyweight formula, and two kinds of modes all are widely applied to slab continuous casting and have obtained better result of use. However, for the large-size continuous casting round billet, the bottom of the large-size continuous casting round billet is complicated in shape, so that the residual situation of the cutting edge is complicated, and therefore, no proper means is provided for removing the cutting edge on the large-size continuous casting round billet.

SUMMERY OF THE UTILITY MODEL

Problem (A)

In conclusion, how to solve the problem of low yield of the continuous casting slab caused by the existence of the cutting nodules becomes a problem to be solved urgently by the technical personnel in the field.

(II) technical scheme

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a fly hammer device suitable for get rid of big specification circle base cutting tumor for realize getting rid of cutting tumor on the continuous casting billet.

The utility model discloses a flyweight device suitable for removing large-specification round billet cutting nodules, which comprises a flyweight, wherein one end of the flyweight is provided with a limit pin hole, and the end surface of the other end of the flyweight is a special-shaped surface;

the special-shaped surface is formed by a plurality of buses which are distributed along the hole axis direction of the limiting pin hole;

in a plane perpendicular to the axis of the hole of the limiting pin hole, the bus is a circular curve, the distance from the bus to the axis of the rotating main shaft is S, the distance from the bottom surface of the continuous casting billet to the axis of the rotating main shaft is L, and S is less than L.

Preferably, in the flyweight device suitable for getting rid of big specification round billet cutting tumor that the utility model provides an L-S = M, M' S value range is 1-2mm.

Preferably, in the flyweight device suitable for removing large round billet cutting nodules provided by the present invention, along the hole axis direction of the limit pin hole, the flyweight is composed of a plurality of flyweight units, the flyweight units are provided with flyweight unit holes, and the flyweight unit holes arranged on all the flyweight units are coaxially arranged and form the limit pin hole; all the flyweight units are assembled on the same limit pin.

Preferably, in the flyweight device suitable for removing large-size round billet cutting nodules provided by the utility model, the flyweight unit is in the size of the hole axis direction of the flyweight unit hole is the thickness size thereof, and the thickness of the flyweight unit is between 20mm-24 mm.

Preferably, in the flyweight device suitable for getting rid of big specification round billet cutting tumor that provides, in the both ends in flyweight unit hole be provided with for the crashproof boss of the surperficial outside salient of flyweight unit.

Preferably, in the flyweight device suitable for removing the cutting burl of the large-size round billet provided by the utility model, the flyweight unit is made of 65Mn spring steel or T8A carbon tool steel; when the manufacturing material of the flyweight unit is 65Mn spring steel, the quenching and tempering hardness of the flyweight unit is 61-63HRC; when the manufacturing material of the flyweight unit is T8A carbon tool steel, the hardening and tempering hardness of the flyweight unit is 63-65HRC.

Preferably, in the flyweight device suitable for getting rid of big specification round billet cutting tumor that the utility model provides, the dysmorphism face is by the wire-electrode cutting shaping.

Preferably, the utility model provides an among the flyweight device suitable for get rid of big specification round billet cutting tumour, pass spacing pinhole is connected with the spacer pin, the flyweight passes through the spacer pin sets up on rotatory main shaft, rotatory main shaft passes through the shaft coupling and is connected with power equipment, power equipment passes through the shaft coupling and rotatory main shaft drives the flyweight rotates.

Preferably, in the flyweight device suitable for removing the cutting burls of the large-size round billets, a plurality of flyweight units are arranged on the same limiting pin, and the limiting pin is parallel to the rotating main shaft and is arranged at intervals; the limiting pins are provided with a plurality of limiting pin groups, one limiting pin group is formed, all limiting pins in the same limiting pin group are arranged along a spiral line from one end of the rotating main shaft to the other end of the rotating main shaft along the axial direction of the rotating main shaft, and the flyweight units arranged on the limiting pins can move independently; in the projection direction perpendicular to the main rotating shaft, the projections of all the flyweight units in the same group of limit pin groups have no interval; the limiting pin groups are provided with a plurality of groups, and all the limiting pin groups are arranged at equal intervals along the circumferential direction of the rotating main shaft; frame plates are arranged at two ends of the limiting pin, and the limiting pin is fixedly arranged on the rotating main shaft through the frame plates.

Preferably, in the flyweight device suitable for removing the cutting burls of the large-size round billets, a plurality of flyweight units are arranged on the same limiting pin, and the limiting pin is parallel to the rotating main shaft and is arranged at intervals; the limiting pins are provided with a plurality of limiting pin groups, all limiting pins in the limiting pin groups in the same group are coaxially arranged, and the flyweight units arranged on the limiting pins can independently move; the limiting pin sets are provided with a plurality of groups, and all the limiting pin sets are arranged at equal intervals along the circumferential direction of the rotating main shaft; along the circumferential direction of the rotating main shaft, two adjacent limiting pin groups are arranged in a staggered mode in the axial direction of the rotating main shaft, and in the projection direction perpendicular to the rotating main shaft, the projections of all the flyweight units in the two adjacent limiting pin groups have no interval; frame plates are arranged at two ends of the limiting pin, and the limiting pin is fixedly arranged on the rotating main shaft through the frame plates.

(III) advantageous effects

Compared with the prior art, the beneficial effects of this application are as follows:

the utility model provides a flyweight device suitable for get rid of big specification circle base cutting tumour for realize the cleaing away of cutting tumour on the continuous casting circle base. Specifically, the flyweight device suitable for removing the large-size round billet cutting burls comprises a flyweight, wherein one end of the flyweight is provided with a limiting pin hole, and the end surface of the other end of the flyweight is a special-shaped surface; the special-shaped surface is formed by a plurality of buses which are distributed along the hole axis direction of the limiting pin hole; in a plane perpendicular to the hole axis of the limiting pin hole, the bus is a circular curve, the distance from the bus to the hole axis of the limiting pin hole is S, the minimum distance from the continuous casting billet to the hole axis of the limiting pin hole is L, and S is less than L. The utility model discloses install on the continuous casting billet ejection roll table, at the continuous casting billet ejection in-process, can adopt the flyweight hammer to pound the mode to the head end and the tail end of continuous casting billet and will cut the tumour and get rid of, through above-mentioned structural design, the utility model discloses well flyweight is rotatory can be when not causing continuous casting billet surface damage, will cut the tumour and get rid of completely.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. Wherein:

fig. 1 is a schematic structural diagram of a flyweight device suitable for removing large-size round billet cutting nodules in an embodiment of the invention;

fig. 2 is a schematic view of a local structure of a flyweight device suitable for removing cutting nodules of a large-sized round billet in an embodiment of the present invention;

fig. 3a is a schematic structural diagram of a flyweight unit according to an embodiment of the present invention;

fig. 3b is a schematic structural diagram of a flyweight unit according to another embodiment of the present invention;

FIG. 4 is a schematic diagram of the size marking of the flyweight unit and the continuous casting slab in the embodiment of the present invention;

fig. 5 is a schematic layout diagram of flyweights in an expanded state of the outer side surface of the rotating spindle according to an embodiment of the present invention;

fig. 6 is a schematic diagram of the arrangement of flyweights when the outer side surface of the rotating spindle is unfolded according to another embodiment of the present invention;

fig. 7 is a schematic diagram of the structure of the flyweight according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a structure of the frame plate disposed on the rotating spindle according to an embodiment of the present invention.

In fig. 5 and 6, the dotted coverage is a set of limit pin sets.

In fig. 1 to 8, the correspondence between the part names and the reference numerals is:

1. a flange frame; 2. flying hammers; 3. rotating the main shaft; 4. a spacing pin;

5. a coupling; 6. a power plant; 7. continuously casting a billet; 8. a limit pin hole; 9. a special-shaped surface;

10. a frame plate; 11. a boss structure; 12. a limiting sleeve; 13. a knocking head.

In fig. 3a, the generatrix constituting the top surface of the flyweight unit is a;

in fig. 7, the generatrix a is arranged along the circular arc line B;

in fig. 4, point D is the axis of the rotating spindle;

in fig. 3a and 4, the surface of the flyweight for striking the cutting edge is a surface in the range of the circle C.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. Each example is provided by way of explanation of the invention and not limitation of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention embrace such modifications and variations as fall within the scope of the appended claims and their equivalents.

In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, and may be, for example, either fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.

Referring to fig. 1 to 8, fig. 1 is a schematic structural diagram of a flyweight device suitable for removing large round billet cutting nodules in an embodiment of the present invention; fig. 2 is a schematic partial structural view of a flyweight device suitable for removing large round billet cutting nodules in the embodiment of the present invention; fig. 3a is a schematic structural diagram of a flyweight unit in an embodiment of the present invention; fig. 3b is a schematic structural diagram of a flyweight unit according to another embodiment of the present invention; FIG. 4 is a schematic diagram of the size marking of the flyweight unit and the continuous casting slab in the embodiment of the present invention; fig. 5 is a schematic layout diagram of flyweights in an expanded state of the outer side surface of the rotating spindle according to an embodiment of the present invention; fig. 6 is a schematic layout of flyweights in a state that the outer side surface of the rotating spindle is unfolded according to another embodiment of the present invention; fig. 7 is a schematic diagram of the structure of the flyweight according to an embodiment of the present invention; fig. 8 is a schematic diagram of a structure of the frame plate disposed on the rotating spindle according to an embodiment of the present invention.

The utility model provides a flyweight device suitable for get rid of big specification circle base cutting tumor is one kind and is applicable to steel industry steel mill continuous casting production process, can go up the cutting tumor to continuous casting billet (especially big specification circle base) and get rid of the equipment of operation, and this equipment belongs to the steelmaking continuous casting category.

For large-specification round billets, the tendency of large-scale casting blank specifications is more and more obvious for improving the finished product quality of the continuous casting blanks, and the large-specification continuous casting blanks can be directly used for processing larger-specification products, such as large-specification rolled materials and thicker plates, or larger-specification steel pipes, and can also be used for obtaining rolled pieces with higher internal quality and higher flaw detection quality by improving the compression ratio. Under the current technical conditions, a square billet or a rectangular billet with the length of a single side specification being more than 350mm or a round billet with the diameter being more than 350mm is generally called as a large specification, and the large specification round billet referred to in the application also refers to the section specification of the casting machine.

Specifically, the utility model provides a flyweight device suitable for get rid of big specification round billet cutting tumour, this flyweight device suitable for getting rid of big specification round billet cutting tumour includes flyweight 2 the utility model discloses in, flyweight 2's structure is including two kinds, and first structure is the integral type structure, and second kind of structure comprises a plurality of unit blocks (flyweight unit).

In a second form of construction, the flyweight 2 is made up of a plurality of flyweight units mounted on the same spacer pin. When the flyweight 2 is composed of a plurality of flyweight units, the top curved surface shapes of the flyweight units are different.

Referring to fig. 7, fig. 7 is a schematic diagram of a flyweight according to an embodiment of the present invention.

The utility model discloses in, the one end terminal surface of having injectd flyweight 2 specifically is for the dysmorphism face: the special-shaped surface is composed of a plurality of buses arranged along the hole axis direction of the limiting pin hole, wherein the buses are circular curves. The utility model provides a flyweight device suitable for get rid of big specification circle base cutting tumor is mainly applicable to getting rid of circle base cutting tumor, and the circle base is circular steel billet promptly, on the cross-section of perpendicular to circle base axis, the bottom surface of circle base is the arc line shape (be the arc line in the cross-section, to the circle base wholly speaking, the bottom surface of circle base is exactly the arc surface), according to the bottom surface shape characteristics of circle base, the utility model discloses above-mentioned structural design has been carried out to flyweight 2's terminal surface. When the flyweight 2 is composed of a plurality of flyweight units, the top surfaces of the flyweight units (end surfaces for removing cutting burls) also follow the design principle of the top surface of the flyweight 2.

Taking fig. 7 as an example, in the first flyweight unit on the left side, the top surface of the flyweight unit is formed by arranging a plurality of identical (same curvature) generatrices a (circular arc lines) from left to right (along the hole axis direction of the limit pin hole), and the generatrices a move along a circular arc line B parallel to the bottom surface of the round billet in the process of arranging from left to right. The top surface design of the second flyweight unit on the left side and the top surface design of other flyweight units are the same as the design scheme of the top surface of the first flyweight unit.

The flyweight unit is designed in a plate structure, the whole flyweight unit is similar to a rectangular structure and has certain thickness, width and length size, a limit pin hole 8 is arranged at one end of the flyweight 2 along the length direction of the flyweight unit (the limit pin hole 8 penetrates through the whole flyweight unit in the thickness direction of the flyweight unit), and the end face of the other end of the flyweight 2 is a special-shaped face 9.

Preferably, the limiting pin hole is a circular hole (round hole), and a high-strength limiting pin can be installed in the circular limiting pin hole to meet the requirements of circumferential rotation and impact of the flyweight 2.

In order to ensure that the flyweight units do not interfere with each other due to abrasion and processing quality problems in the rotating process, a certain boss is designed at the position of a punching part (a limit pin hole 8) of the flyweight unit. The utility model discloses an in an embodiment, when installing a plurality of flyweight units on same spacer pin, in order to avoid influencing each other between the flyweight unit (if the both sides face of flyweight unit is the plane, then be face-to-face formula contact between two adjacent flyweight units, can produce great frictional force between the flyweight unit like this to influence the activity of flyweight unit), the utility model discloses set up lug boss structure 11 (lug boss structure 11 is 1mm-3mm for the side arch of flyweight unit) and correspond the position of spacing pinhole 8 in the side of flyweight unit (can set up in one side, also can set up in both sides), owing to set up lug boss structure 11 between two adjacent flyweight units like this, just can avoid the problem of flyweight unit interact to appear.

As shown in fig. 3b, fig. 3b shows another structure of the flyweight unit of the present invention.

The flyweight unit comprises a main body (in a cuboid structure and with a certain height, width and thickness) in a plate-type structure, a knocking head 13 structure is arranged at one end (one end in the length direction, the upper end of the main body in fig. 3 b), and the structural design of the top surface of the knocking head (the end surface for removing the cutting burls) also follows the design principle of the top surface of the flyweight 2, and is not described herein again. The width dimension of the knocking head 13 is smaller than the width of the main body, and the thickness dimension of the knocking head 13 is equal to the thickness of the main body. The size of the knocking head 13 is reduced (the size is slightly reduced), so that the processing area of the top surface of the knocking head can be effectively reduced, and the working efficiency of the machining and forming of the flyweight unit is improved. Set up spacing pinhole 8 in the main part, spacing pinhole 8 is the elliptical aperture (long straight hole), and the spacer pin can be designed according to the shape of spacing pinhole 8, adopts non-round hole assembly mode, can install on the spacer pin with fixed mode (no longer rotatory for the spacer pin) with flying hammer unit.

Specifically, in the hole axis direction of spacing pinhole 8, flyweight 2 comprises a plurality of flyweight units that set up side by side, is provided with flyweight unit hole on the flyweight unit, and the coaxial setting of flyweight unit hole that sets up on the whole flyweight unit forms foretell spacing pinhole 8 (the utility model discloses well flyweight 2 comprises a plurality of flyweight units, has seted up flyweight unit hole on the flyweight unit, installs flyweight unit on same spacing pin, and these flyweight unit holes can form a through-hole structure, both spacing pinhole 8). And limiting pins are arranged through the flyweight unit holes, and all flyweight units are assembled on the same limiting pin.

Of course, in another embodiment of the present invention, the flyweight 2 may adopt an integrated structure, and the limit pin hole 8 is a through hole structure provided on the flyweight 2.

The utility model discloses in, the terminal surface of the other end (the ascending other end of length direction) of flyweight 2 is special-shaped face 9, when flyweight 2 comprises a plurality of flyweight units, and the terminal surface of each flyweight unit (the terminal surface of keeping away from flyweight unit hole one end on the flyweight unit length direction) constitutes special-shaped face 9 of flyweight 2.

Further, the dimension of the flyweight unit in the hole axis direction of the flyweight unit hole is the thickness dimension thereof, and the thickness of the flyweight unit is between 20mm and 24 mm.

The method is mainly suitable for large-size round billets, and particularly for large-size round billets, the arc length of the cutting nodules (the arc length occupied by the cutting nodules) really accumulated to the bottom edge of the arc generally does not exceed 30% of the arc length (the arc length of the bottom edge of the round billet). Therefore, in order to achieve better striking effect, the thickness of the flyweights cannot be designed to be too large, otherwise the arc-shaped parts themselves can affect and obstruct the circumferential movement of the flyweights, and in order to ensure sufficient impact strength of the flyweights, the flyweight units are preferably designed to have the thickness of 20mm-24mm, and one flyweight can be provided with 3-5 flyweight units.

The utility model discloses in, a plurality of flyweight units assemble back on same spacer pin, when rotatory along with the spacer pin, in order to avoid two adjacent flyweight units to take place the condition of friction or collision, the utility model discloses be provided with the anticollision boss for the surperficial outside salient of flyweight unit in the both ends in flyweight unit hole, be provided with behind the anticollision boss, anticollision boss on two adjacent flyweight units offsets, can make two adjacent flyweight units between have certain gap to avoid flyweight unit friction or striking.

In order to facilitate the structural description of the special-shaped surface 9, the present invention takes the flyweight 2 as an example to adopt an integrated structure: the special-shaped surface 9 is composed of a plurality of buses arranged along the hole axis direction of the limit pin hole 8, the buses are circular curves (the axis of the rotating main shaft is used as the center of a circle), the distance from the buses to the axis of the rotating main shaft is S, the minimum distance from the continuous casting billet 7 to the axis of the rotating main shaft is L, wherein S is less than L, specifically, L-S = M, the value range of M is 1-2mm, and the value of M is optimally 1mm. And the S and the L are both values taken from the same cross section perpendicular to the axis of the rotating main shaft.

In the utility model discloses in, the preparation material of flyweight unit is 65Mn spring steel or T8A carbon element instrument steel.

Furthermore, when the manufacturing material of the flyweight unit is 65Mn spring steel, the quenching and tempering hardness of the flyweight unit is 61-63HRC; when the manufacturing material of the flyweight unit is T8A carbon tool steel, the hardening and tempering hardness of the flyweight unit is 63-65HRC.

In general, the hardness of the material of the flyweight 2 after heat treatment is much higher than that of the work object (cutting tumor), and the flyweight is selected based on two principles: 1. selecting high-carbon steel grade to obtain higher hardness after quenching and tempering; 2. the spring steel material is selected to obtain higher strength. The hardness values are selected based on the conventional heat treatment performance of the materials and are data with optimal matching of strength, impact and hardness, and the service lives of the flyweights made of different materials may change to a certain extent according to the difference of steel types of casting machines.

In one embodiment of the invention, the profiled surface 9 is formed by wire cutting. Of course, the flyweight unit can also be molded by casting, and not only can be directly molded in a mold, but also the dimensional accuracy of the special-shaped surface 9 can be improved by polishing after the molding by casting.

The limiting pin penetrates through the limiting pin hole 8 to be connected with the flyweight 2 (flyweight unit), the limiting pin is connected with the power equipment 6 through the coupler 5, and the power equipment 6 drives the rotating main shaft to drive the flyweight 2 to rotate through the coupler 5. In particular, the power device 6 may be an electric motor.

The utility model provides a flyweight device is a device suitable for getting rid of big specification round billet cutting tumour, is particularly suitable for the operation of getting rid of cutting tumour on the circular continuous casting billet 7.

The hot-cutting operation of the continuous casting billet 7 is generally performed on the continuous casting billet 7 (the continuous casting billet 7 is transported in a horizontal direction), liquid cutting molten steel is inevitably generated in the cutting process, and the cutting molten steel flows downwards under the action of gravity and is cooled at the bottom edge of a cutting section to form cutting nodules.

The utility model provides a flyweight device is one kind and can effectively get rid of the equipment to the cutting tumor. The utility model provides an among the flyweight device, rotary motion is made by the drive of external power equipment 6 to flyweight 2, can exert an impact force to cutting the tumour after the cutting tumour contact on flyweight 2 and the continuous casting billet 7, will cut the tumour through this impact force and wash.

Specifically, a hole structure (i.e., a limit pin hole) is formed in the flyweight 2, a limit pin 4 is installed in the limit pin hole of the flyweight 2, and the limit pin 4 (the limit pin 4 is installed on a rotating main shaft, the rotating main shaft is connected with external power equipment 6 through a coupler 5, and the rotating main shaft is driven by the external power equipment 6 to rotate) drives the flyweight 2 to rotate.

The specific action flow of the flyweight 2 for removing the cutting burls on the continuous casting billet 7 is as follows: firstly, the flyweight 2 can impact the cutting edge, the cutting edge can be broken with the continuous casting billet 7 under the impact action of the flyweight 2, then, the flyweight 2 continues to rotate, the end face (top end face) of the flyweight 2 can be in contact with the surface (the surface part close to the cutting section) of the continuous casting billet 7, and the cutting edge or the cutting edge breaking residual wall can be further removed through friction with the surface of the continuous casting billet 7.

Based on foretell flyweight 2 is to getting rid of action process of cutting the tumour, the utility model discloses structural design to flyweight 2 should guarantee following two points: 1. the surface of the flyweight 2 for impacting the cutting tumor (the side surface of the flyweight 2, the surface within the range of the circle C in fig. 3a and 4) should be as flat as possible, the impact resistance of the flat surface is strong, and the service life of the flyweight 2 is long; 2. during the rotation of the flyweights 2, the distance between the end surface of the flyweight 2 (the end surface at one end in the length direction of the flyweight 2) and the outer surface of the continuous casting billet 7 should be kept consistent. Based on above-mentioned two point structural design requirements, especially to the second point, the utility model provides a following scheme: the end face of the flyweight 2 is designed to be a smooth curved surface structure, for convenience of structural description, the end face of the flyweight 2 is set to be composed of countless points, a plurality of points are connected into a line to form a bus, and the bus is arranged to form a plane (namely the end face of the flyweight 2) according to a certain mode (namely the bus moves along an arc line B parallel to the bottom surface of a round billet).

The utility model discloses well flyweight keeps around the rotatory motion state of rotatory main shaft at the operation in-process (get rid of the in-process of cutting the tumour promptly). Specifically, the method comprises the following steps: the flyweight is arranged on the rotating main shaft through the limiting pin, and under the action of centrifugal force, the connection line of the outer end face (the central point of the outer end face) of the flyweight and the limiting pin hole (the central point of the limiting pin hole) on the flyweight passes through the axis of the rotating main shaft. The utility model discloses structural design to the generating line is based on the axis of rotating spindle goes on, the spacing pinhole has been seted up on flyweight 2, flyweight 2 installs on spacer pin 4 through the spacing pinhole, it is rotatory to drive flyweight 2 by spacer pin 4, in the course of the work, flyweight receives centrifugal force's effect to rotate certain angle back (this moment, flyweight receives the pulling force of spacer pin 4 and the centrifugal force that flyweight received on a straight line) for spacer pin 4 keeps the gesture unchangeable on spacer pin 4, flyweight is installed on the rotating spindle by spacer pin 4, if the rotating spindle keeps rotating at the uniform velocity, flyweight 2 will keep fixed gesture to rotate around the rotating spindle all the time so. The rotating main shaft is horizontally arranged, and the distance between each point on the bottom surface of the round billet and the rotating main shaft is kept unchanged in the process that the round billet travels along a horizontal straight line. Then, when the flyweight 2 is driven by the rotating main shaft to rotate, in order to avoid the fluctuation of the interval between the top surface of the flyweight 2 and the bottom surface of the round billet (if the interval has fluctuation, the condition that the flyweight 2 is hammered to the surface of the round billet is likely to be caused, and the condition is to be avoided in the actual production operation), the utility model discloses design the top surface of the flyweight 2 (namely, the aforesaid is formed by the arc-shaped bus), thus, when the flyweight 2 rotates, because the distance from each point on the top surface of the flyweight 2 to the axis of the rotating main shaft is not changed, therefore, the top surface of the flyweight 2 and the bottom surface of the round billet can be guaranteed to keep the set interval unchanged. Based on the structural design, when cutting burls exist on the bottom surface of the round billet, the flyweights 2 rotate, the round billet moves linearly, and therefore the flyweights 2 can be equivalently kept at set intervals to roll on the round billet at a high speed, so that the cutting burls are hammered or rolled by applying an acting force to the cutting burls if the flyweights 2 touch the cutting burls in the rotating process.

Under the stable rotation state of the rotating main shaft (namely, the rotating main shaft rotates at a constant speed), the flyweight 2 can be subjected to gravity, centrifugal force and pulling force of the limiting pin 4, at the moment, the gravity can be ignored (the gravity is smaller, the influence on the rotation state of the flyweight 2 is smaller, and therefore the gravity can be ignored), and then the pulling force and the centrifugal force applied to the flyweight 2 change the posture of the flyweight 2 (namely, change a certain angle) until the pulling force is the same as the centrifugal force, and the pulling force and the centrifugal force are opposite in the opposite direction and are positioned on the same straight line.

A plane perpendicular to the axis of the rotating main shaft is set as a reference plane, the axis of the rotating main shaft is equivalent to a point in the reference plane, and a line formed by cutting the reference plane and the end face of the flyweight 2 is a bus. In the same reference plane, the relationship between the axis of the rotating spindle (point D in fig. 4) and the generatrix a is: the distances from all points on the generatrix A to the axis (point D) of the rotating main shaft are the same, namely, in the reference plane, the generatrix A is a circular arc curve taking the axis (point D) of the rotating main shaft as the center of a circle. Of course, the generatrix may be a circular arc curve having a curvature larger than that of the above-described generatrix (i.e., a line in which the distances from the respective points on the generatrix a to the axis of the rotation main shaft are the same).

Because the rotating main shaft is fixedly arranged (rotatable) relative to the ground, the flyweight 2 can be kept in a relatively fixed state with the rotating main shaft under the action of centrifugal force in the operation process, and the distance between the continuous casting billet 7 and the ground is not changed in the moving process of the continuous casting billet 7, namely the distance relative to the rotating main shaft is not changed, and further the distance relative to the end face of the flyweight 2 (the flyweight 2 is in the state of the highest rotating point) is not changed. For the generatrix, a reference plane is set, which passes through the axis of the rotating main shaft 3 and is perpendicular to the axis of the round billet, and when the flyweights 2 perform the rotating motion, the distance from the intersection point of each point on the generatrix and the reference plane to the surface of the continuous casting billet 7 is a fixed value.

After the bus bars are structurally designed (that is, the distances from each point on the bus bar a to the axis of the rotating main shaft are the same), the arrangement of the bus bars needs to be designed in the hole axis direction along the position-limiting pin hole (that is, the bus bar a moves along an arc line B parallel to the bottom surface of the round billet), so that a complete end surface is formed.

The utility model discloses well mainly cut the tumour to the round billet and get rid of the operation. The minimum distance from the continuous casting billet 7 to the rotation center of the flyweights (namely the axis of the rotating main shaft) is set to be L in the reference plane, and then the distance S from each point on the generatrix to the rotation center of the flyweights (the axis of the rotating main shaft) is not more than L, so that the flyweights 2 can be ensured to be completely contacted with impurities (cutting burls) on the surface of the continuous casting billet 7, and the cutting burls can be effectively removed. Further, in the utility model discloses in, S-L = M, M' S value scope is 1mm-2mm to 1mm is the optimum value.

Through the design to the mounted position of spacer pin 4 and the structure size of flyweight 2, can guarantee to the continuous casting billet 7 of same model, can collide the outstanding impurity (mainly cutting the tumour) on continuous casting billet 7 surface when flyweight 2 is rotatory still can not produce excessive friction damage to continuous casting billet 7 surface simultaneously.

The utility model discloses a concrete structure is including flange frame 1, through the rotatory main shaft 3 of bearing installation in the flange structure, can realize the ascending and descending of rotatory main shaft 3 on the direction of height like this, and rotatory main shaft 3 passes through spacer pin 4 installation flyweights 2, and rotatory main shaft 3 realizes power through shaft coupling 5 and outside power equipment 6 and is connected.

The utility model discloses when using flyweight 2 to get rid of the cutting tumor, it is rotatory to drive rotating spindle 3 through outside power equipment 6, through spacer pin installation flyweight 2 on rotating spindle 3, and rotating spindle 3 can be driven by outside power equipment 6 and carry out high-speed rotatory, drives flyweight 2 by rotating spindle 3 and rotates together. Will the utility model discloses install on the knockout roll table, when continuous casting billet 7 moves this station, detect through photoelectric switch, continuous casting billet 7 moves the back that targets in place, continuous casting billet 7 stops at the settlement position, the main shaft rises and drives flyweight 2 and rises to the highest position together (flyweight 2 is rotatory after getting up, flyweight 2's special-shaped surface 9 can with the remaining cutting tumour contact in continuous casting billet 7 bottom surface), drive the rotatory striking continuous casting billet 7's of flyweight 2 cutting tumour position by the spacer pin under motor drive, beat through the circumference mechanical force (flyweight 2 is in rotary motion in the course of the work, above-mentioned circumference indicates the direction of rotation of flyweight 2), reach the purpose of cleaing away the cutting tumour. After the operation is finished, the main shaft is lowered, and the continuous casting billet 7 is recovered to advance. When the continuous casting slab 7 runs to the tail induction part, the above-mentioned removal action is repeated, so that the head and the tail of the continuous casting slab 7 can be processed.

The utility model discloses in, flyweight 2 comprises a plurality of flyweight units, and the preparation material of flyweight unit is 65Mn or T8A, and the terminal surface warp cutting of flyweight unit becomes the thermal refining behind the design size, chooses for use above-mentioned two kinds of materials to be used for guaranteeing that flyweight unit has sufficient intensity and hardness, and has better elasticity and toughness to life after the extension mechanical impact. Specifically, the quenching and tempering hardness of 65Mn is 61-63HRC, and the quenching and tempering hardness of T8A is 63-65HRC. The tail end of the flyweight unit is flush with the tail end of the flyweight unit through a limiting pin 4, the working end (one end of the special-shaped surface 9) is processed into a structure matched with the bottom surface of the continuous casting billet 7 in shape through linear cutting, and the length of the flyweight 2 is guaranteed to be slightly higher than the lower arc line by 1-2mm.

The utility model provides a flyweight device suitable for get rid of big specification round billet cutting tumor for realize getting rid of cutting tumor on continuous casting billet 7. Specifically, the flyweight device suitable for removing the large-size round billet cutting burls comprises a flyweight 2, wherein one end of the flyweight 2 is provided with a limit pin hole 8, and the end surface of the other end of the flyweight 2 is a special-shaped surface 9; the special-shaped surface 9 is composed of a plurality of buses arranged along the hole axis direction of the limit pin hole 8; in a plane perpendicular to the hole axis of the limit pin hole 8, the bus is a circular curve, the distance from the bus to the hole axis of the limit pin hole 8 is S, the minimum distance from the continuous casting billet 7 to the hole axis of the limit pin hole 8 is L, and S is less than L. The utility model discloses install on the 7 knockout roll tables of continuous casting billet, at 7 knockout in-process of continuous casting billet, can adopt flyweight 2 hammers to pound the mode to the head end and the little end of continuous casting billet 7 and will cut the tumour and get rid of, through above-mentioned structural design, the utility model discloses in 2 rotations of flyweight can be when not causing 7 surface damage of continuous casting billet, will cut the tumour and get rid of completely.

Referring to fig. 5 and fig. 6, fig. 5 is a schematic diagram of a flyweight layout in an expanded state of an outer side surface of a rotating spindle according to an embodiment of the present invention; fig. 6 is a schematic diagram of a flyweight layout in a state where the outer side surface of the rotating spindle is unfolded according to another embodiment of the present invention.

The utility model discloses in, on the rotary main shaft 3 was installed through spacer pin 4 to the flyweight, rotary main shaft 3 drove the flyweight rotation through spacer pin 4. The flyweights are arranged on the rotating spindle 3 in the following manner:

the first method,

Corresponding to fig. 5, be provided with a plurality of flyweight units on same spacer pin 4, the layout mode of flyweight on rotatory main shaft 3 can be equated with the layout mode of spacer pin on rotatory main shaft 3, consequently, the utility model discloses use spacer pin 4 as the example.

The stop pin 4 is parallel to the rotary main shaft 3 and arranged at intervals (the axis of the stop pin 4 is parallel to the axis of the rotary main shaft 3, the stop pin 4 is far away from the rotary main shaft 3), and the stop pin 4 is provided with a plurality of stop pin groups (the same stop pin group comprises a plurality of stop pins 4).

Referring to fig. 8, in the present invention, the flyweight 2 is mounted on the rotary spindle 3 through the stopper pin 4. The banking pin 4 is mounted to the rotating spindle 3 via a frame plate 10. In the present embodiment, the frame plate 10 is a single-turn spiral plate structure, that is, the frame plate 10 rotates only one turn around the rotating spindle 3 and spirals up or down in the axial direction of the rotating spindle 3. A plurality of frame plates 10 are provided at equal intervals on the same rotating main shaft 3, and all the frame plates 10 have the same spiral direction, that is, they all spirally rise in the axial direction of the rotating main shaft 3 or all spirally fall in the axial direction of the rotating main shaft 3. From the actual product, the frame plate 10 is equivalent to a ring-shaped spring gasket with a certain thickness (the middle of the ring is broken, and the two broken ends are staggered back and forth). The frame plate 10 is a single-turn spiral plate structure, two ends of the frame plate 10 are staggered along the axial direction of the rotating main shaft 3 on the rotating main shaft 3, for convenience of structural description, the staggered part of the two ends of the clamping plate is named as a frame plate staggered part, the rotating main shaft 3 is provided with a plurality of frame plates 10 at equal intervals, the frame plates 10 extend from one end to the other end of the rotating main shaft 3, in all the frame plates 10, the frame plate staggered part rotates on the rotating main shaft 3 along the same direction, and the phase difference angle between every two adjacent frame plates 10 is 15 degrees to 45 degrees, specifically 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees and 45 degrees, and 30 degrees is an optimal angle.

After the frame plates are arranged on the rotating main shaft 3 according to the structural design, the frame plates 10 are punched in the direction parallel to the rotating main shaft 3 to form frame plate holes for installing the limiting pins 4. The utility model discloses in, spacer pin 4 can be major axis round pin structure, and a spacer pin 4 runs through a plurality of frame plates 10 promptly, and spacer pin 4 can be minor axis round pin structure, and a spacer pin 4 is only installed between two adjacent frame plates 10 promptly. When the limit pin 4 adopts a long shaft pin structure, the installation of the limit pin 4 is facilitated, namely, the limit pin is inserted into the first frame plate 10 from one end of the rotating main shaft 3, and the last frame plate 10 is inserted from the other end of the rotating main shaft 3 and penetrates out. When the limit pin 4 adopts a short-shaft pin structure, the manufacturing difficulty and the cost of the limit pin 4 are lower.

In the circumferential direction of the rotary main shaft 3, a frame plate hole is provided in the frame plate 10, and the stopper pin 4 is attached to the frame plate 10 through the frame plate hole. A plurality of frame plate holes are arranged at equal intervals on the same frame plate 10, and for the limit pins 4 mounted on the same frame plate 10, the interval between two adjacent limit pins 4 is designed according to the length of the flyweights 2 (which can also be understood as flyweight units), namely, the flyweights 2 mounted on the limit pins are not contacted with the front limit pin or the rear limit pin in a non-rotating state (the flyweights 2 fall and abut against the outer side surface of the rotating main shaft 3), so that the occurrence of mutual interference between the flyweights 2 can be avoided.

As can be seen from the above description, if the shelf boards 10 have a certain thickness and the shelf boards 10 have a single-turn spiral board structure, the flyweights 2 disposed between two adjacent shelf boards 10 may be as follows: when the flyweight mounted on the adjacent nearest limit pin opposite to the end surface of the frame plate 10 is in a non-rotating state (the flyweight 2 falls and abuts against the outer side surface of the rotating main shaft 3), the end of the frame plate 10 may affect the falling of the flyweight (the flyweight may also be understood as hitting the end of the frame plate 10), so as to interfere the rotating motion of the rotating main shaft (the rotating main shaft as a whole, including the limit pin and the flyweight, has a gravity center not on the rotating center, causing the rotating main shaft to rotate and shake). In order to avoid the above situation, the utility model discloses can set up stop collar 12 on the axle section that frame plate 10 tip just is the spacer pin, promptly in the circumference of rotating spindle, stop collar 12 just sets up to frame plate 10 tip (just no longer sets up flyweight or flyweight unit to the position of frame plate 10 tip), and the condition that just so can not have the flyweight to pound on frame plate 10 takes place. For example, in fig. 5, in the first row (the first row r1 and the second row r 2) from top to bottom, in the second column from left to right (the second column is c2 and the third column is c 3), two flyweight units marked with shadow can be understood as being directly opposite to the end face of the shelf board 10 below (as fig. 5 is a simplified diagram, only an example is shown), and when two stopper pins adjacent in the circumferential direction are very close, the two flyweight units marked with shadow can be hit on the shelf board 10. To avoid this, the two flyweight units marked with a shadow will be replaced by stop collars.

The utility model discloses in, all adopt foretell structure and overall arrangement design to frame plate 10, spacer pin and the structure and the relation between the flyweight, do not give unnecessary details to a certain specific arrangement here.

Along the axial of rotation main shaft 3, the one end of autogyration main shaft 3 points to its other end, and all spacer pins 4 in same spacer pin group set up along the helix (at least around rotation main shaft 3a week, use a week as the optimum mode of arranging).

In the projection direction perpendicular to the rotating main shaft 3, in the same group of limit pin groups, the projections of all the flyweight units have no interval, so that the flyweight units can be ensured to be arranged on the rotating main shaft 3 in the axial direction without gaps, and the condition that cutting nodules are leaked out can not occur.

The aforesaid is the mode of arranging of a set of spacer pin group, gets rid of the effect in order to guarantee to cut the tumour, the utility model discloses set up the multiunit with the spacer pin group, whole spacer pin group sets up along the equidistant setting of circumference of rotating spindle 3.

The limit pin 4 is disposed on the rotating main shaft 3 and can be fixedly disposed relative to the rotating main shaft 3, specifically, frame plates 10 are disposed at two ends of the limit pin 4, the frame plates 10 are fixedly disposed on the rotating main shaft 3, and the limit pin 4 is fixedly disposed on the rotating main shaft 3 through the frame plates 10.

The second way,

Corresponding to fig. 6, similarly, a plurality of flyweight units are provided on the same stopper pin 4, and the stopper pin 4 is provided in parallel with the rotary spindle 3 at an interval.

The stop pins 4 are provided with a plurality of stop pin groups, all the stop pins 4 in the same stop pin group are coaxially arranged (namely, arranged along the axis of the rotating main shaft 3), and the flyweight units arranged on the stop pins 4 can independently move.

The limit pin sets are provided with a plurality of groups, and all the limit pin sets are arranged at equal intervals along the circumferential direction of the rotating main shaft 3; along the circumference of the rotating main shaft 3, two adjacent groups of limit pin sets are arranged in a staggered mode in the axial direction of the rotating main shaft 3. Therefore, the projections of all the flyweight units in the two adjacent groups of limit pin groups are not spaced in the projection direction of the flyweight units perpendicular to the rotating main shaft 3, the flyweight units can be arranged in the axial direction of the rotating main shaft 3 without gaps, and the condition that cutting nodules are leaked is avoided.

The limit pin 4 is disposed on the rotating main shaft 3 and can be fixedly disposed relative to the rotating main shaft 3, specifically, frame plates 10 are disposed at two ends of the limit pin 4, the frame plates 10 are fixedly disposed on the rotating main shaft 3, and the limit pin 4 is fixedly disposed on the rotating main shaft 3 through the frame plates 10.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A flyweight device suitable for removing cutting burls of large-size round billets is used for removing the cutting burls on the continuous casting billets and is characterized in that,

the special-shaped flyweight comprises a flyweight, wherein a limit pin hole is formed in one end of the flyweight, and the end face of the other end of the flyweight is a special-shaped face;

a limit pin penetrates through the limit pin hole, and the flyweight is arranged on the rotating main shaft through the limit pin;

the special-shaped surface is formed by a plurality of buses which are distributed along the hole axis direction of the limiting pin hole;

in a plane perpendicular to the axis of the hole of the limiting pin hole, the bus is a circular curve, the distance from the bus to the axis of the rotating main shaft is S, the distance from the bottom surface of the continuous casting billet to the axis of the rotating main shaft is L, and S is less than L.

2. The flyweight device for removing large-size round billet cutting nodules according to claim 1,

L-S = M, the value range of M is 1-2mm.

3. The flyweight device for removing large-size round billet cutting nodules according to claim 1,

the flyweights are composed of a plurality of flyweight units along the hole axis direction of the limit pin hole, flyweight unit holes are formed in the flyweight units, and the flyweight unit holes formed in all the flyweight units are coaxially arranged to form the limit pin hole;

all the flyweight units are assembled on the same limit pin.

4. The flyweight device for removing large-size round billet cutting nodules according to claim 3,

the size of the flyweight unit in the hole axis direction of the flyweight unit hole is the thickness size of the flyweight unit hole, and the thickness of the flyweight unit is between 20mm and 24 mm.

5. The fly hammer device suitable for removing large-size round billet cutting nodules according to claim 3,

and anti-collision bosses which protrude outwards relative to the surface of the flyweight unit are arranged at two ends of the flyweight unit hole.

6. The flyweight device for removing large-size round billet cutting nodules according to claim 3,

the manufacturing material of the flyweight unit is 65Mn spring steel or T8A carbon tool steel;

when the manufacturing material of the flyweight unit is 65Mn spring steel, the quenching and tempering hardness of the flyweight unit is 61-63HRC;

when the manufacturing material of the flyweight unit is T8A carbon tool steel, the hardening and tempering hardness of the flyweight unit is 63-65HRC.

7. The flyweight device for removing large-size round billet cutting nodules according to claim 1,

the special-shaped surface is formed by linear cutting.

8. The flyweight device for removing large-size round billet cutting nodules according to any one of claims 3 to 7,

the rotary main shaft is connected with power equipment through a coupler, and the power equipment is connected with the flyweight through the coupler and the rotary main shaft.

9. The flyweight device for removing large-size round billet cutting nodules according to claim 8,

a plurality of flyweight units are arranged on the same limiting pin, and the limiting pin is parallel to the rotating main shaft and is arranged at intervals;

the limiting pins are provided with a plurality of limiting pin groups, one limiting pin group is formed, all limiting pins in the same limiting pin group are arranged along a spiral line from one end of the rotating main shaft to the other end of the rotating main shaft along the axial direction of the rotating main shaft, and the flyweight units arranged on the limiting pins can move independently;

in the projection direction perpendicular to the main rotating shaft, the projections of all the flyweight units in the same group of limit pin groups have no interval;

the limiting pin sets are provided with a plurality of groups, and all the limiting pin sets are arranged at equal intervals along the circumferential direction of the rotating main shaft;

frame plates are arranged at two ends of the limiting pin, and the limiting pin is fixedly arranged on the rotating main shaft through the frame plates.

10. The flyweight device for removing large-size round billet cutting nodules according to claim 8,

a plurality of flyweight units are arranged on the same limiting pin, and the limiting pin is parallel to the rotating main shaft and is arranged at intervals;

the limiting pins are provided with a plurality of limiting pin groups, all limiting pins in the limiting pin groups in the same group are coaxially arranged, and the flyweight units arranged on the limiting pins can independently move;

the limiting pin groups are provided with a plurality of groups, and all the limiting pin groups are arranged at equal intervals along the circumferential direction of the rotating main shaft;

along the circumferential direction of the rotating main shaft, two adjacent limiting pin groups are arranged in a staggered mode in the axial direction of the rotating main shaft, and in the projection direction perpendicular to the rotating main shaft, the projections of all the flyweight units in the two adjacent limiting pin groups have no interval;

frame plates are arranged at two ends of the limiting pin, and the limiting pin is fixedly arranged on the rotating main shaft through the frame plates.

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