阅读说明：本技术 一种轧机振动抑振装置 (Vibration suppression device for rolling mill ) 是由 陆建平 于 2020-06-04 设计创作，主要内容包括：本发明公开了一种轧机振动抑振装置,具体涉及机械加工领域,包括轧机立架和液压下轧机构,第一动轧辊和第二动轧辊两端分别转动套接有第一轴承座和第二轴承座,液压下轧机构的输出端与第二轴承座的顶面固定连接,轧机立架的内侧固定安装有液压抑振机构,第一动轧辊和第二动轧辊的端部固定安装有激光测距机构,第一轴承座的底端固定连接有感应支撑机构。本发明通过设置两套独立的液压抑振机构,利用液压抱死机构与刹条片的相互作用,通过液压驱动对调节好的轧机工作辊的固定抱死,防止在轧制薄规格或变形抗力较大的带材时频繁出现强烈的异常振动现象,导致带材和轧辊上形成振痕,提高轧制钢板的产品质量。(The invention discloses a vibration suppression device for a rolling mill, and particularly relates to the field of machining. The invention prevents frequent strong abnormal vibration phenomena from occurring when rolling thin-specification or large-deformation-resistance strip materials, so that vibration marks are formed on the strip materials and the roller, and the product quality of rolled steel plates is improved.)

1. The utility model provides a rolling mill vibration suppression device, rolls mechanism (5) under rolling mill grudging post (1) and hydraulic pressure, the inboard of rolling mill grudging post (1) is rotated and is installed quiet roll (2), first movable roll (3) and second movable roll (4), its characterized in that: the rolling mill is characterized in that a first bearing seat (9) and a second bearing seat (7) are respectively rotatably sleeved at two ends of the first movable roller (3) and the second movable roller (4), the second bearing seat (7) and the first bearing seat (9) are in sliding connection with the inner side of the rolling mill stand (1), the bottom surface of the hydraulic rolling mechanism (5) is fixedly connected with the top surface of the rolling mill stand (1), the output end of the hydraulic rolling mechanism (5) is fixedly connected with the top surface of the second bearing seat (7), a hydraulic vibration suppression mechanism (8) is fixedly installed on the inner side of the rolling mill stand (1), the hydraulic vibration suppression mechanism (8) comprises a brake strip piece (81) and a hydraulic locking mechanism (82), the outer side of the brake strip piece (81) is in sliding connection with the inner side of the hydraulic locking mechanism (82), and the brake strip piece (81) is fixedly connected with two sides of the second bearing seat (7) and the first bearing seat (9), the hydraulic locking mechanism (82) is fixedly connected with the inner side of the rolling mill stand (1), the end portions of the first movable roller (3) and the second movable roller (4) are fixedly provided with a laser ranging mechanism (6), and the bottom end of the first bearing seat (9) is fixedly connected with an induction supporting mechanism (10).

2. A rolling mill vibration damping device according to claim 1, characterized in that: the hydraulic lower rolling mechanism (5) is composed of a hydraulic pump and a hydraulic rod, the output end of the hydraulic rod is fixedly connected with the top surface of the second bearing seat (7), the output end of the hydraulic pump is fixedly connected with the input end of the hydraulic rod, and the input end of the hydraulic locking mechanism (82) is fixedly connected with the output end of the hydraulic pump.

3. A rolling mill vibration damping device according to claim 1, characterized in that: hydraulic pressure locking mechanism (82) are including fixing base (821), pneumatic cylinder (822), locking dish (823) and the hydraulic pressure mouth of pipe (824) of stopping, pneumatic cylinder (822) and locking dish (823) of stopping are the symmetrical arrangement in the inboard of fixing base (821), the output fixed connection of locking dish (823) and pneumatic cylinder (822) of stopping, the input of hydraulic pressure mouth of pipe (824) and pneumatic cylinder (822) is linked together.

4. A rolling mill vibration suppressing device according to claim 3, characterized in that: the locking brake disc (823) is a ceramic composite material component, the brake strip (81) is a metal component, and a plurality of through holes and uniform distribution are formed in the surface of the brake strip (81).

5. A rolling mill vibration damping device according to claim 1, characterized in that: laser rangefinder mechanism (6) are including laser rangefinder (61) and location sight (62), the terminal surface and the quiet roll (2) of laser rangefinder (61) and the second move the tip fixed connection of roll (4), location sight (62) are located the upper and lower both sides of first roll (3) tip of moving, laser rangefinder (61) and location sight (62) are located same straight line, the output tip of laser rangefinder (61) is relative arrangement with the tip of location sight (62).

6. A rolling mill vibration damping device according to claim 1, characterized in that: the induction supporting mechanism (10) comprises a hydraulic supporting rod (101) and a pressure sensor (102), the pressure sensor (102) is embedded in the hydraulic supporting rod (101), and the input end of the hydraulic supporting rod (101) is fixedly connected with the output end of the hydraulic lower rolling mechanism (5).

7. A rolling mill vibration damping device according to claim 6, wherein: the output ends of the laser ranging mechanism (6) and the pressure sensor (102) are electrically connected with a controller, the output end of the controller is electrically connected with the input end of the hydraulic rolling mechanism (5), and the pressure sensor (102) is a hydraulic pressure sensor.

Technical Field

The invention relates to the technical field of machining, in particular to a vibration suppression device for a rolling mill.

Background

Most rolling mills frequently have strong abnormal vibration when rolling thin specification or the strip with larger deformation resistance, lead to the formation of vibration marks on the strip and the roll, reduce the surface quality of the strip and the online service life of the roll, even cause accidents such as equipment, seriously threaten the safe operation of the rolling mills, when vibration occurs in actual production, the speed is forced to be reduced, temporary measures such as changing the lubrication state or changing the roll are forced to improve the vibration state of the rolling mills, the production yield and the economic benefit are seriously influenced, even if the rolling mills are the same, a plurality of vibration forms exist in the rolling process at the same time, and the rolling mill becomes a technical problem which needs to be urgently solved in the rolling field in the world.

The rolling mill can produce the vibration at the operation in-process, and its vibration source is mostly in roll and roll bearing, at the in-process of roll, because the roll adopts the mode that hydraulic pressure pushed down to exert down force to the plate, the atress of roll during operation hydraulic pressure fluid influences the unstable condition of hydraulic pressure that easily appears because of the surface smoothness of plate and makes the roll undulant condition about appearing, produces the performance decline that the vibration leads to the rolling mill, makes the product surface appear the line of shaking simultaneously, has certain defect.

Therefore, it is highly desirable to provide a vibration damping device for rolling mills.

Disclosure of Invention

In order to overcome the above defects in the prior art, embodiments of the present invention provide a rolling mill vibration suppression device, in which two independent hydraulic vibration suppression mechanisms are provided, an interaction between a hydraulic locking mechanism and a brake strip is utilized, a hydraulic drive is used to lock the adjusted working rolls of the rolling mill, a laser distance measurement mechanism is used to monitor the relative distance between the rolls in real time to sense the fluctuation between the rolls, and an induction support mechanism is used to monitor the stress fluctuation condition of the moving rolls, so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a vibration suppression device for a rolling mill comprises a rolling mill stand and a hydraulic rolling mechanism, wherein a static roller, a first movable roller and a second movable roller are rotatably mounted on the inner side of the rolling mill stand, a first bearing seat and a second bearing seat are respectively sleeved at two ends of the first movable roller and the second movable roller in a rotating mode, the second bearing seat and the first bearing seat are in sliding connection with the inner side of the rolling mill stand, the bottom surface of the hydraulic rolling mechanism is fixedly connected with the top surface of the rolling mill stand, the output end of the hydraulic rolling mechanism is fixedly connected with the top surface of the second bearing seat, a hydraulic vibration suppression mechanism is fixedly mounted on the inner side of the rolling mill stand and comprises a braking strip and a hydraulic locking mechanism, the outer side of the braking strip is in sliding connection with the inner side of the hydraulic locking mechanism, the braking strip is fixedly connected with the two sides of the second bearing seat and the first bearing seat, and the hydraulic locking mechanism is fixedly connected with the inner side of the rolling mill stand, the end parts of the first movable roller and the second movable roller are fixedly provided with laser ranging mechanisms, and the bottom end of the first bearing seat is fixedly connected with an induction supporting mechanism.

In a preferred embodiment, the hydraulic rolling mechanism is composed of a hydraulic pump and a hydraulic rod, an output end of the hydraulic rod is fixedly connected with the top surface of the second bearing seat, an output end of the hydraulic pump is fixedly connected with an input end of the hydraulic rod, and an input end of the hydraulic locking mechanism is fixedly connected with an output end of the hydraulic pump.

In a preferred embodiment, the hydraulic locking mechanism includes fixing base, pneumatic cylinder, locking dish and the hydraulic pressure mouth of pipe of stopping, the pneumatic cylinder is the inboard of symmetric arrangement in the fixing base with locking dish of stopping, the output fixed connection of locking dish and pneumatic cylinder of stopping, the hydraulic pressure mouth of pipe is linked together with the input of pneumatic cylinder.

In a preferred embodiment, the locking brake disc is a ceramic composite material member, the brake strip is a metal material member, and a plurality of through holes are formed in the surface of the brake strip and are uniformly distributed.

In a preferred embodiment, the laser distance measuring mechanism comprises a laser distance measuring instrument and a positioning sight, the end face of the laser distance measuring instrument is fixedly connected with the end parts of the static roller and the second movable roller, the positioning sight is positioned at the upper side and the lower side of the end part of the first movable roller, the laser distance measuring instrument and the positioning sight are positioned on the same straight line, and the output end part of the laser distance measuring instrument is opposite to the end part of the positioning sight.

In a preferred embodiment, the induction supporting mechanism comprises a hydraulic supporting rod and a pressure sensor, the pressure sensor is embedded in the hydraulic supporting rod, and the input end of the hydraulic supporting rod is fixedly connected with the output end of the hydraulic rolling mechanism.

In a preferred embodiment, the output ends of the laser distance measuring mechanism and the pressure sensor are electrically connected to a controller, the output end of the controller is electrically connected to the input end of the hydraulic rolling mechanism, and the pressure sensor is a hydraulic pressure sensor.

The invention has the technical effects and advantages that:

1. the invention prevents frequent strong abnormal vibration phenomena from occurring when rolling thin-specification or large-deformation-resistance strip materials, so that vibration marks are formed on the strip materials and the roller, and the product quality of rolled steel plates is improved;

2. the invention is provided with the laser ranging mechanism and the induction supporting mechanism, utilizes the laser ranging mechanism to monitor the fluctuation between the induction rollers in real time according to the relative distance between the rollers, and utilizes the induction supporting mechanism to monitor the stress fluctuation condition of the movable rollers, automatically controls the hydraulic pressure of the hydraulic vibration suppression mechanism, keeps the locking state of the movable rollers and realizes automatic vibration suppression.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic structural diagram of fig. 2 at a according to the present invention.

Fig. 4 is a schematic structural view of the hydraulic vibration suppression mechanism of the present invention.

Fig. 5 is a schematic structural diagram of the hydraulic locking mechanism of the present invention.

The reference signs are: 1. a rolling mill stand; 2. static rolling; 3. a first movable roll; 4. a second movable roller; 5. a hydraulic lower rolling mechanism; 6. a laser ranging mechanism; 7. a second bearing housing; 8. a hydraulic vibration suppression mechanism; 9. a first bearing housing; 10. an induction support mechanism; 61. a laser range finder; 62. positioning the sight bead; 81. a brake strip sheet; 82. a hydraulic locking mechanism; 821. a fixed seat; 822. a hydraulic cylinder; 823. locking the brake disc; 824. a hydraulic nozzle; 101. a hydraulic support rod; 102. a pressure sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The vibration suppression device for the rolling mill shown in the attached figures 1-5 comprises a rolling mill stand 1 and a hydraulic rolling mechanism 5, wherein a static roller 2, a first movable roller 3 and a second movable roller 4 are rotatably mounted on the inner side of the rolling mill stand 1, a first bearing seat 9 and a second bearing seat 7 are respectively rotatably sleeved at two ends of the first movable roller 3 and the second movable roller 4, the second bearing seat 7 and the first bearing seat 9 are slidably connected with the inner side of the rolling mill stand 1, the bottom surface of the hydraulic rolling mechanism 5 is fixedly connected with the top surface of the rolling mill stand 1, the output end of the hydraulic rolling mechanism 5 is fixedly connected with the top surface of the second bearing seat 7, a hydraulic vibration suppression mechanism 8 is fixedly mounted on the inner side of the rolling mill stand 1, the hydraulic vibration suppression mechanism 8 comprises a braking strip 81 and a hydraulic locking mechanism 82, the outer side of the braking strip 81 is slidably connected with the inner side of the hydraulic locking mechanism 82, the braking strip 81 is fixedly connected with two sides of the second bearing seat 7 and the first bearing seat 9, the hydraulic locking mechanism 82 is fixedly connected with the inner side of the rolling mill stand 1, the end parts of the first movable roller 3 and the second movable roller 4 are fixedly provided with a laser ranging mechanism 6, and the bottom end of the first bearing seat 9 is fixedly connected with an induction supporting mechanism 10.

The implementation mode is specifically as follows: by arranging two sets of independent hydraulic vibration suppression mechanisms 8 and utilizing the interaction of the hydraulic locking mechanism 82 and the brake strip 81, the fixed locking of the well-adjusted working roll of the rolling mill is realized through hydraulic driving, so that the frequent strong abnormal vibration phenomenon when rolling thin-specification or large-deformation-resistance strip materials is prevented, the vibration marks are formed on the strip materials and the roll, and the product quality of rolled steel plates is improved; in addition, the invention is provided with the laser ranging mechanism 6 and the induction supporting mechanism 10, the relative distance between the rollers is monitored by the laser ranging mechanism 6 in real time to sense the fluctuation between the rollers, the stress fluctuation condition of the movable roller is monitored by the induction supporting mechanism 10, the hydraulic pressure of the hydraulic vibration suppression mechanism is automatically controlled, the locking state of the movable roller is kept, and the automatic vibration suppression is realized.

The hydraulic lower rolling mechanism 5 is composed of a hydraulic pump and a hydraulic rod, the output end of the hydraulic rod is fixedly connected with the top surface of the second bearing seat 7, the output end of the hydraulic pump is fixedly connected with the input end of the hydraulic rod, and the input end of the hydraulic locking mechanism 82 is fixedly connected with the output end of the hydraulic pump, so that the driving structure of the rolling mill is realized.

Wherein, the hydraulic pressure locking mechanism 82 includes fixing base 821, pneumatic cylinder 822, the dish 823 and the hydraulic pressure mouth of pipe of stopping of locking, and pneumatic cylinder 822 and the dish 823 of stopping of locking are the symmetrical arrangement in the inboard of fixing base 821, and the dish 823 and the output fixed connection of pneumatic cylinder 822 of stopping of locking, and the hydraulic pressure mouth of pipe 824 is linked together with the input of pneumatic cylinder 822, utilizes hydraulic pressure to drive the locking.

Wherein, locking disc 823 of stopping is ceramic composite material component, and the strip 81 of stopping is the metal material component, and a plurality of through-holes and evenly distributed have been seted up on the surface of the strip 81 of stopping, improves locking disc 823 of stopping and the frictional force of the strip 81 of stopping.

Wherein, laser rangefinder mechanism 6 includes laser rangefinder 61 and location sight 62, and the terminal surface of laser rangefinder 61 moves the tip fixed connection of roll 4 with quiet roll 2 and second, and location sight 62 is located the upper and lower both sides of first 3 tip of moving roll, and laser rangefinder 61 and location sight 62 are located same straight line, and the output tip of laser rangefinder 61 is relative arrangement with the tip of location sight 62, realizes the fluctuation monitoring to relative distance between the roll.

The induction supporting mechanism 10 comprises a hydraulic supporting rod 101 and a pressure sensor 102, the pressure sensor 102 is embedded in the hydraulic supporting rod 101, the input end of the hydraulic supporting rod 101 is fixedly connected with the output end of the hydraulic lower rolling mechanism 5, and the condition of stress fluctuation of the roller is monitored.

The output ends of the laser ranging mechanism 6 and the pressure sensor 102 are electrically connected with a controller, the output end of the controller is electrically connected with the input end of the hydraulic rolling mechanism 5, the pressure sensor 102 is a hydraulic pressure sensor, and automatic control locking is achieved.

Wherein the pressure sensor 102 is of the MIK-P300 type; the laser rangefinder 61 is of the type KLH-01T-20 hz.

The working principle of the invention is as follows:

the first step is as follows: before the work of the rolling mill starts, the distance between the rollers is adjusted through the hydraulic lower rolling mechanism 5 and the induction supporting mechanism 10, so that rolling procedures with different specifications are executed, and after the adjustment of the rollers is finished, hydraulic pumping of the hydraulic locking mechanism 82 is started;

the second step is that: the hydraulic cylinder 822 in the hydraulic locking mechanism 82 is used for driving the locking brake disc 823 to approach each other to lock the surface of the brake strip 81, the positions of the second bearing seat 7 and the first bearing seat 9 are limited through the friction resistance between the hydraulic locking mechanism 82 and the brake strip 81, so that the first movable roller 3 and the second movable roller 4 are limited, and the phenomenon of frequent strong abnormal vibration when rolling thin-specification or large-deformation-resistance strip materials is prevented, so that the strip materials and the rollers are prevented from forming vibration marks;

the third step: in the rolling process, once vibration occurs, the distance between the rollers fluctuates, the occurrence of abnormal conditions can be monitored through the laser distance meter 61 and the positioning sight 62, or the change of the steel plate reaction force borne by the rollers is monitored by the pressure sensor 102, then the driving of the rolling mill is controlled to increase the oil hydraulic pressure of the hydraulic locking mechanism 82, the locking force is improved, and automatic control is carried out.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.