A damping device for a roll gap in a roll straightener

Abstract

The utility model relates to the technical field of roll straightening machine, a kind of shock absorber for the roll gap in roll straightening machine, including pedestal, still including shock absorber mechanism, setting on pedestal and being used to carry out shock absorption treatment in the operation process of correction roll;Guide, the number is two, the guide is installed between shock absorber mechanism and pedestal;Detection piece, the number is two, the detection piece is set on guide;Wherein, the detection piece includes the sleeve ring that can be vertically moved;Using disc spring group to match hydraulic jack, active shock absorption is carried out, reduces the unstable jumping and the phenomenon of large deviation of roll gap, improves shock absorption effect, reduces adjustment frequency and maintenance cost, and in use process, the fatigue condition of disc spring group can be known in time, reduces the phenomenon of subsequent use due to the phenomenon of poor reset.

Description

Technical Field

[0001] This utility model relates to the field of roller straightening machine technology, specifically to a shock-absorbing device for the roller gap in a roller straightening machine. Background Technology

[0002] Roll straightening is the correction of shape defects in rolled materials by repeated bending as they pass between two rows of staggered rollers. Roll straightening is performed on roller straighteners or skew roller straighteners. Roll straighteners are widely used for straightening sheet, strip and profile materials, while skew roller straighteners are used for straightening tube and bar materials.

[0003] In actual use, the roller straightener experiences unstable gaps and large deviations in the roller gap due to excessive clearances in the transmission components and the natural upward jump of the upper roller during straightening operations. This not only affects the straightening quality but also reduces the effective operating rate, increases the adjustment frequency and maintenance costs. Therefore, dampers, disc spring assemblies, and high-rigidity support frames are usually used in conjunction to reduce the vibration of the roller gap.

[0004] However, the above methods have the following drawbacks in actual use: relying on the above shock absorption methods, there is a tendency for the roller gap to be unstable and the deviation to be large, which affects the shock absorption effect, increases the adjustment frequency and maintenance cost, and the damper and disc spring assembly are maintained regularly, so it is impossible to know their fatigue status in time, which may lead to poor reset and thus affect subsequent use. Utility Model Content

[0005] The purpose of this invention is to provide a vibration damping device for the roller gap in a roller straightener, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vibration damping device for the roller gap in a roller straightener, comprising a base, a vibration damping mechanism disposed on the base and used for vibration damping during the operation of the straightening roller; two guide members installed between the vibration damping mechanism and the base; and two detection members disposed on the guide members; wherein the detection members include a collar that can move vertically.

[0007] Preferably, the shock absorption mechanism includes a hydraulic jack installed on the base, with a sleeve fitted on the outside of the hydraulic jack; and a disc spring assembly composed of several disc springs vertically connected together, the disc spring assembly being installed between the hydraulic jack and the sleeve.

[0008] Preferably, the guide includes a guide rod, which is a vertical strip structure, with one end of the guide rod installed on the base and a collar slidably fitted onto the outside of the guide rod; and a limiting plate, which is slidably fitted onto the outside of the guide rod, with the outside of the collar contacting the top of the limiting plate.

[0009] Preferably, the detection component further includes a fixing ring, which is a ring-shaped structure. The fixing ring is fixedly sleeved on the outside of the guide rod and is coaxially arranged with the collar. The fixing ring and the collar are in contact on opposite sides.

[0010] Preferably, the two guide rods are symmetrically arranged along the axis of the sleeve, and the outer side of the guide rods is coated with scale values.

[0011] Preferably, the sleeve is equipped with a support for docking with the roller seat, and both the support and the base have a set of docking holes inside.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a disc spring assembly and a hydraulic jack to provide distributed buffering and vibration damping, reducing unstable roller gap jumping and large deviations, improving the vibration reduction effect, and reducing the adjustment frequency and maintenance costs. By setting a collar and a guide rod with scale values, the reset status of the collar can be visually observed when the disc spring assembly is reset, thereby judging the fatigue status of the disc spring assembly, enabling timely maintenance, and reducing the occurrence of problems affecting subsequent use due to poor reset. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Enlarged view of A in the middle; Figure 3 This is a schematic diagram of the structure of the collar of this utility model; Figure 4 This is an exploded view of the sleeve and disc spring assembly of this utility model.

[0014] In the diagram: 100, base; 200, shock absorption mechanism; 210, hydraulic jack; 211, sleeve; 212, support; 220, disc spring assembly; 300, guide component; 310, guide rod; 320, limiting plate; 400, detection component; 410, collar; 420, fixing ring. Detailed Implementation

[0015] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0016] Please see Figure 1-4As shown, a vibration damping device for the roll gap in a roll straightener includes a base 100, a vibration damping mechanism 200 disposed on the base 100 and used for vibration damping during the operation of the straightening roll; two guide members 300 installed between the vibration damping mechanism 200 and the base 100; and two detection members 400 disposed on the guide members 300; wherein the detection member 400 includes a vertically movable collar 410.

[0017] The base 100 is set below the end of the straightening roller. During the straightening operation, the vibration damping mechanism 200 is used to buffer and suppress the vibration generated by the straightening roller. During this process, the guide 300 will drive the detection component 400 to move. By observing the movement of the collar 410, the reset status of the vibration damping mechanism 200 can be obtained, which facilitates timely maintenance and reduces the occurrence of uncontrollable roller gap due to substandard reset.

[0018] The shock absorption mechanism 200 includes a hydraulic jack 210, which is installed on the base 100. The outer side of the hydraulic jack 210 is fitted with a sleeve 211. A disc spring assembly 220 is composed of several disc springs vertically connected together. The disc spring assembly 220 is installed between the hydraulic jack 210 and the sleeve 211.

[0019] During the vibration reduction process, the sleeve 211 is used to bear the force, and then the disc spring group 220 is used to absorb the high-frequency vibration energy for buffering. At the same time, an external monitoring device is used to monitor the movement status of the straightening roller in real time. When its movement amplitude exceeds the preset value, the hydraulic jack 210 operates actively to make precise adjustments to the lifting height and maintain the stability of the roller gap. It should be noted that the straightening machine is equipped with displacement sensors and pressure sensors to monitor the movement status of the straightening rollers, thereby controlling the hydraulic jack 210 to operate accordingly based on the monitoring data. The hydraulic jack 210 is also equipped with a tubular oil tank and a pump body inside it for conveying hydraulic oil. The hydraulic jack 210 is a mature technology, and its internal structure and actual application will not be described in detail here. The docking height and specifications of disc spring assembly 220 can be selected according to the specifications of the straightening machine and actual usage requirements.

[0020] The guide member 300 includes a guide rod 310, which is a vertical strip structure. One end of the guide rod 310 is installed on the base 100, and a collar 410 is slidably sleeved on the outside of the guide rod 310. A limiting plate 320 is slidably sleeved on the outside of the guide rod 310, and the outside of the collar 410 contacts the top of the limiting plate 320.

[0021] During the shock absorption process, the sleeve 211 will drive the limiting plate 320 to move accordingly. When the limiting plate 320 descends, the collar 410 will descend accordingly due to its own weight. Then, during the reset, the collar 410 will be moved by the limiting plate 320.

[0022] The detection component 400 also includes a fixing ring 420, which is a ring structure. The fixing ring 420 is fixedly sleeved on the outside of the guide rod 310 and is coaxially arranged with the collar 410. The fixing ring 420 is in contact with the opposite side of the collar 410.

[0023] The fixed ring 420 can be made of steel structure: when the collar 410 is normally reset, it will collide with the fixed ring 420 to produce a sound. The user can know that the disc spring assembly 220 is in normal condition by hearing the sound. Conversely, if no impact sound is heard, it means that the disc spring assembly 220 has a fatigue problem. The specific fatigue condition can be judged by the reset height of the collar 410. The retaining ring 420 can also be made of rubber: the user can judge the fatigue of the disc spring assembly 220 simply by observing the movement of the collar 410; It should be noted that the material selection for the aforementioned retaining ring 420 can be made according to the noise control requirements of the production environment. The collar 410 has a set of balls embedded inside that contact the guide rod 310, which reduces wear between the two and makes the sliding smoother.

[0024] Two guide rods 310 are symmetrically arranged along the axis of the sleeve 211, and the outer side of the guide rods 310 is coated with scale values.

[0025] By using the scale value settings, users can more intuitively observe the movement of the collar 410, thereby making it easier and more accurate to judge the fatigue status of the disc spring assembly 220.

[0026] The sleeve 211 is equipped with a support 212 for docking with the roller seat. Both the support 212 and the base 100 have a set of docking holes inside.

[0027] By using support 212 to connect with roller seat, when the straightening roller moves, support 212 transmits force to sleeve 211. The connection hole facilitates quick connection between support 212 and roller seat, and quick positioning of base 100 and working area.

[0028] Working principle: Install the base 100 to the corresponding position, and then connect the support 212 with the roller seat. During plate straightening, displacement sensors and pressure sensors are used to monitor the movement of the straightening roller in real time. Under normal conditions, the disc spring assembly 220 provides buffering. When the movement amplitude of the straightening roller exceeds the preset value, the hydraulic jack 210 quickly adjusts the lifting height according to its movement to actively suppress vibration and complete the vibration reduction operation. During each vibration reduction process, the collar 410 will move accordingly. Users can observe the reset status of the collar 410 to judge the fatigue status of the disc spring assembly 220, thereby performing timely maintenance to ensure the subsequent use effect.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A vibration damping device for the roll gap in a roll straightener, comprising a base (100), characterized in that, Also includes: A shock-absorbing mechanism (200) is provided on the base (100) and is used to reduce vibration during the operation of the straightening roller; Two guide members (300) are installed between the shock absorption mechanism (200) and the base (100); Two detection elements (400) are provided on the guide element (300); The detection element (400) includes a collar (410) that can move vertically.

2. The vibration damping device for the roll gap in a roll straightener according to claim 1, characterized in that, The shock absorption mechanism (200) includes: A hydraulic jack (210) is installed on a base (100), and a sleeve (211) is fitted on the outside of the hydraulic jack (210). The disc spring assembly (220) is composed of several disc springs vertically joined together, and the disc spring assembly (220) is installed between the hydraulic jack (210) and the sleeve (211).

3. A vibration damping device for the roll gap in a roll straightener according to claim 2, characterized in that, The guide (300) includes: The guide rod (310) is a vertical strip structure. One end of the guide rod (310) is installed on the base (100), and the collar (410) is slidably sleeved on the outside of the guide rod (310). The limiting plate (320) is slidably sleeved on the outside of the guide rod (310), and the outside of the collar (410) contacts the top of the limiting plate (320).

4. A vibration damping device for the roll gap in a roll straightener according to claim 3, characterized in that, The detection element (400) also includes: The fixing ring (420) is a ring structure. The fixing ring (420) is fixedly sleeved on the outside of the guide rod (310) and coaxially arranged with the collar (410). The fixing ring (420) is in contact with the opposite side of the collar (410).

5. A vibration damping device for the roll gap in a roll straightener according to claim 3, characterized in that: The two guide rods (310) are symmetrically arranged along the axis of the sleeve (211), and the outer side of the guide rods (310) is coated with scale values.

6. A vibration damping device for the roll gap in a roll straightener according to claim 2, characterized in that: The sleeve (211) is equipped with a support (212) for docking with the roller seat. Both the support (212) and the base (100) have a set of docking holes inside.

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