CN218015666U

CN218015666U - Four-connecting-rod vibration structure for continuous casting crystallizer vibration device

Info

Publication number: CN218015666U
Application number: CN202222272357.8U
Authority: CN
Inventors: 朱长勇; 唐林; 朱士举; 杨玉祥; 熊胜宸
Original assignee: Wuhan Gaozhida Continuous Casting Intelligent Technology Co ltd
Current assignee: Wuhan Gaozhida Continuous Casting Intelligent Technology Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-12-13
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a four connecting rod vibrating structure for continuous casting crystallizer vibrating device, including the mount, vibration frame, drive assembly, go up connecting rod and lower connecting rod, go up the connecting rod and lower connecting rod about the interval set up, the both ends of going up the connecting rod are rotated with mount and vibration frame through the bearing respectively and are connected, the middle part of lower connecting rod is passed through the bearing and is rotated with the mount and be connected, its both ends are rotated with drive assembly and vibration frame through the bearing respectively and are connected, be equipped with elastic expansion mechanism between mount and the vibration frame, elastic expansion mechanism's both ends rotate with last connecting rod and lower connecting rod respectively and are connected. The utility model provides a four connecting rod vibrating structure for continuous casting crystallizer vibrating device sets up elastic expansion mechanism between last connecting rod and lower connecting rod, carries out the pretension to the motion of going up between connecting rod and the lower connecting rod, and the synchronism that moves between the connecting rod about guaranteeing can improve imitative arc precision.

Description

Four-connecting-rod vibration structure for continuous casting crystallizer vibration device

Technical Field

The utility model relates to a continuous casting equipment field. More specifically, the present invention relates to a four-bar linkage vibrating structure for a continuous casting mold vibrating apparatus.

Background

A mold is a strand forming device in continuous casting of steel, which is a core part of a continuous casting machine and is called a heart device of the continuous casting machine. It is a water-cooled ingot mould, and is characterized by that the high-temp. molten steel continuously injected into its internal cavity can be strongly cooled by means of water-cooled copper wall, and the heat quantity can be led out, so that it can be gradually solidified into the casting blank with required section form and blank shell thickness. And continuously drawing the casting blank with the core part still in a liquid state out of the lower opening of the crystallizer, thereby creating conditions for the casting blank to be completely solidified in a later secondary cooling area. Since the solidification process is carried out under continuous and relative movement between the blank shell and the mold wall, the vibration device of the mold used for preventing the blank shell from adhering to the mold wall is a very important production device in the continuous casting process.

The crystallizer vibrator can be used to support crystallizer and make it vibrate up and down reciprocally, or rather make it move along the radius of conticaster in arc-like mode according to given amplitude, frequency and waveform deflection characteristics, so making demoulding easier. In particular, during continuous casting, when the strand sticks to the walls of the mold, if the mold is stationary, breakout due to the stretch-breaking of the shell may occur. When the crystallizer vibrates upwards, the bonding part and the crystallizer ascend together, the blank shell is pulled apart, and the unsolidified molten steel is immediately filled to the fracture part to start to form a new solidified layer; when the crystallizer vibrates downwards and the vibration speed is higher than the throwing speed, the blank shell is in a pressed state, cracks are healed and are connected again, and meanwhile, the casting blank is forced to eliminate adhesion, so that 'demoulding' is obtained. Meanwhile, the crystallizer vibrates up and down, the relative position of the liquid level and the wall of the crystallizer is periodically changed, and the lubricating oil and the protective slag for lubricating the crystallizer are beneficial to leakage between the wall of the crystallizer and a blank shell, so that the lubricating condition is improved, the drawing friction resistance is reduced, and the casting blank is prevented from being bonded with the copper wall of the crystallizer in the solidification process to be pulled and cracked, thereby causing the bonding breakout accident.

The short-arm four-connecting-rod vibration mechanism is a common support mode of a crystallizer vibration device, has the characteristics of simple structure and convenience in maintenance, can accurately realize arc motion of the crystallizer, is favorable for improving the quality of a casting blank, and is widely applied to modern continuous casting machines. Particularly, a short-arm four-connecting-rod vibration mechanism is usually adopted on a small square billet continuous casting machine and is generally arranged on the inner arc side; on the continuous casting machine for rectangular and large slabs, a short-arm four-connecting-rod type vibration mechanism is usually adopted and installed on the outer arc side, and the working principle is that a motor drives a pull rod to reciprocate through a speed reducer and transmission of an eccentric shaft, so as to drive a connecting rod to swing, and the connecting rod swings along with the reciprocating movement, so that a vibration frame can vibrate according to an arc track. However, the short-arm four-bar vibration mechanism has the defects in the connection structure of the plate spring and the vibration rack and the connection structure of the plate spring and the vibration base, the two parts are positioned by the screw tail taper pin and are connected by the bolt, and the short-arm four-bar vibration mechanism has the advantages of high positioning precision and convenience in disassembly. More importantly, the taper pin is used for positioning during installation, the position accuracy of a pin hole in a plate spring is required to be high, and the relative position of the vibration rack and the vibration base is fixed, so that the online adjustment of the vibration device is influenced, the vibration track is influenced, and the quality of a casting blank cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a four-bar linkage vibrating structure for continuous casting crystallizer vibrating device sets up elastic expansion mechanism between last connecting rod and lower connecting rod, carries out the pretension to the motion between last connecting rod and the lower connecting rod, and the synchronism that moves between the connecting rod about guaranteeing can improve imitative arc precision.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a four-bar linkage vibration structure for continuous casting crystallizer vibrating device, includes mount, vibration frame, drive assembly, goes up connecting rod and lower connecting rod, go up the connecting rod with the lower connecting rod interval sets up from top to bottom, go up the both ends of connecting rod respectively through the bearing with the mount with vibration frame rotates and connects, the middle part of lower connecting rod pass through the bearing with the mount rotates and connects, its both ends respectively through the bearing with drive assembly with vibration frame rotates and connects, the mount with be equipped with elastic telescoping mechanism between the vibration frame, elastic telescoping mechanism's both ends respectively with go up the connecting rod with the connecting rod rotates down and connects.

Preferably, in the four-bar linkage vibrating structure for the continuous casting crystallizer vibrating device, the elastic telescopic mechanism comprises a first spring and two first connecting pieces, the two first connecting pieces are respectively arranged on the upper connecting bar and the lower connecting bar, and two ends of the first spring are respectively connected with the two first connecting pieces.

Preferably, in the four-bar vibration structure for the continuous casting crystallizer vibration device, the elastic telescopic mechanism comprises a bar body and two second springs, two ends of the bar body are respectively connected with one ends of the two second springs, and the other ends of the two second springs are respectively connected with the upper connecting bar and the lower connecting bar through second connecting pieces.

Preferably, in the four-bar vibration structure for the continuous casting crystallizer vibration device, the elastic telescopic mechanism comprises a cylinder, a round bar and a third spring, one end of the cylinder is open and the other end is closed, one end of the round bar coaxially extends into the open end of the cylinder and can slide along the axis of the cylinder, a plurality of through grooves axially arranged along the cylinder are uniformly distributed on the inner wall of the cylinder along the circumferential direction, sliders which are equal to the through grooves in number and correspond to the through grooves in a one-to-one manner are uniformly distributed on the round bar along the circumferential direction, the sliders are slidably arranged in the corresponding through grooves, the sealed end of the cylinder and the other end of the round bar are respectively rotatably connected with the upper connecting bar and the lower connecting bar through a rotating member, the third spring is arranged in the cylinder, and two ends of the third spring are respectively connected with the inner wall of the cylinder and one end of the round bar.

The utility model discloses a four connecting rod vibration structure sets up elastic telescoping mechanism between last connecting rod and lower connecting rod, carries out the pretension through elastic telescoping mechanism to the motion between last connecting rod and the lower connecting rod, and the synchronism that moves between the connecting rod about guaranteeing can improve imitative arc precision. Compared with the existing four-connecting-rod vibration structure, the crystallizer can vibrate more stably, and the influence of the four-connecting-rod vibration structure on the vibration track of the crystallizer is reduced.

Additional advantages, objects, and features of the invention 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 invention.

Drawings

Fig. 1 is a schematic structural diagram of a four-bar linkage vibration structure according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a four-bar linkage vibration structure according to another embodiment of the present invention;

fig. 3 is a schematic structural diagram of a four-bar linkage vibration structure according to another embodiment of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The embodiment of the utility model provides a pair of four-bar linkage vibration structure for continuous casting crystallizer vibrating device, including mount 1, vibration frame 2, drive assembly, go up connecting rod 3 and lower connecting rod 4, go up connecting rod 3 with the interval sets up about connecting rod 4 down, go up the both ends of connecting rod 3 respectively through the bearing with mount 1 with vibration frame 2 rotates and connects, down the middle part of connecting rod 4 pass through the bearing with mount 1 rotates and connects, its both ends respectively through the bearing with drive assembly with vibration frame 2 rotates and connects, mount 1 with be equipped with elastic telescoping mechanism between the vibration frame 2, elastic telescoping mechanism's both ends respectively with go up connecting rod 3 with connecting rod 4 rotates down and connects.

In this embodiment, when the four-bar linkage vibrating structure works, the driving assembly drives the lower connecting bar 4 to rotate periodically around the fixing frame 1, so that the vibrating frame 2 vibrates periodically. An elastic telescopic mechanism is arranged between an upper connecting rod 3 and a lower connecting rod 4 of the existing four-connecting-rod vibration, and the elastic telescopic mechanism is used for pre-tightening the movement between the upper connecting rod 3 and the lower connecting rod 4, so that the synchronism of the movement between the upper connecting rod 4 and the lower connecting rod 4 is ensured, and the arc simulation precision can be improved. Compared with the existing four-connecting-rod vibration structure, the crystallizer can vibrate more stably, and the influence of the four-connecting-rod vibration structure on the vibration track of the crystallizer is reduced.

Preferably, as another embodiment of the present invention, as shown in fig. 1, the elastic expansion mechanism includes a first spring 5 and two first connecting members, two of the first connecting members are respectively disposed on the upper connecting rod 3 and the lower connecting rod 4, and two of the two ends of the first spring 5 are respectively connected to the first connecting members.

In this embodiment, connecting rod 3 and lower connecting rod 4 are connected through first spring 5, when lower connecting rod 4 rotates, no longer just drive vibration frame 2 through lower connecting rod 4 and rotate, vibration frame 2 drives connecting rod 3 again and rotates, connecting rod 3 and lower connecting rod 4 are connected through first spring 5, can also drive connecting rod 3 through first spring 5 and rotate when making lower connecting rod 4 rotate, on the basis of original structure, the stability of connecting between connecting rod 3 and the lower connecting rod 4 has been increased.

Preferably, as another embodiment of the present invention, as shown in fig. 2, the elastic expansion mechanism includes a rod 6 and two second springs 7, two ends of the rod 6 are respectively connected to two ends of the second springs 7, and two other ends of the second springs 7 are respectively connected to the upper connecting rod 3 and the lower connecting rod 4 through second connecting members.

In this embodiment, compare in elastic telescoping mechanism and use first spring 5 to connect lower connecting rod 4 and lower connecting rod 4, the spring is except flexible when tensile, it also can take place to buckle at flexible in-process to influence the spring and to being connected between upper connecting rod 3 and the lower connecting rod 4, be connected with upper connecting rod 3 and lower connecting rod 4 through second spring 7 respectively at the both ends of the body of rod 6, under the flexible prerequisite of guaranteeing elastic telescoping mechanism, it buckles to reduce the spring emergence, guarantee elastic telescoping mechanism's stability.

Preferably, as the utility model discloses another embodiment, as shown in fig. 3, elastic expansion mechanism includes drum 8, round bar 9 and third spring, the one end opening and the other end of drum 8 are sealed, the one end of round bar 9 is coaxial to be stretched into in the open end of drum 8, and can follow the axis of drum 8 slides, it has many logical grooves 10 along its axial setting to have along the circumference equipartition on the inner wall of drum 8, along the circumference equipartition on round bar 9 have with lead to slider 11 that groove 10 quantity equals and the one-to-one, slider 11 slidable sets up in corresponding lead to in the groove 10, the sealed end of drum 8 with the other end of round bar 9 respectively through rotate the piece with go up connecting rod 3 with lower connecting rod 4 rotates and connects, the third spring sets up in drum 8, its both ends respectively with the inner wall of drum 8 with the one end of round bar 9 is connected.

In this embodiment, compared to the elastic telescoping mechanism in fig. 2, in order to further reduce the bending of the elastic telescoping mechanism during the telescoping process, the elastic telescoping is ensured by the third spring, and then the telescoping of the third spring is limited by the connection between the cylinder 8 and the round rod 9, so that the elastic telescoping mechanism does not bend during the telescoping process.

While the embodiments of the invention have been described above, it is not intended to be limited to the specific embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed, and to such extent that such modifications are possible without departing from the broad scope of the appended claims.

Claims

1. The utility model provides a four connecting rod vibration structure for continuous casting crystallizer vibrating device, includes mount (1), vibration frame (2), drive assembly, goes up connecting rod (3) and lower connecting rod (4), go up connecting rod (3) with lower connecting rod (4) interval sets up from top to bottom, the both ends of going up connecting rod (3) respectively through the bearing with mount (1) with vibration frame (2) rotate to be connected, the middle part of lower connecting rod (4) pass through the bearing with mount (1) rotate to be connected, its both ends respectively through the bearing with drive assembly with vibration frame (2) rotate to be connected, its characterized in that, mount (1) with be equipped with elastic telescoping mechanism between vibration frame (2), elastic telescoping mechanism's both ends respectively with go up connecting rod (3) with lower connecting rod (4) rotate to be connected.

2. A four-bar linkage oscillating structure for oscillating devices of continuous casting crystallizers, according to claim 1, characterized in that said elastic telescopic mechanism comprises a first spring (5) and two first connecting members, respectively provided on said upper link (3) and said lower link (4), said first spring (5) having its two ends respectively connected to said two first connecting members.

3. The four-bar linkage oscillating structure for the oscillating device of a continuous casting mold according to claim 1, wherein the elastic expansion mechanism comprises a rod (6) and two second springs (7), two ends of the rod (6) are respectively connected with one ends of the two second springs (7), and the other ends of the two second springs (7) are respectively connected with the upper link (3) and the lower link (4) through second connecting members.

4. The four-bar linkage vibrating structure for the vibrating device of the continuous casting crystallizer as claimed in claim 1, wherein the elastic telescopic mechanism comprises a cylinder (8), a round bar (9) and a third spring, one end of the cylinder (8) is open and the other end is closed, one end of the round bar (9) coaxially extends into the open end of the cylinder (8) and can slide along the axis of the cylinder (8), a plurality of through grooves (10) axially arranged along the cylinder are circumferentially and uniformly distributed on the inner wall of the cylinder (8), sliders (11) which are equal in number and in one-to-one correspondence to the through grooves (10) are circumferentially and uniformly distributed on the round bar (9), the sliders (11) are slidably arranged in the corresponding through grooves (10), the sealed end of the cylinder (8) and the other end of the round bar (9) are respectively rotatably connected with the upper connecting bar (3) and the lower connecting bar (4) through rotating members, and the third spring is arranged in the cylinder (8), and two ends of the third spring are respectively connected with one end of the inner wall of the cylinder (8) and one end of the round bar (9).