Universal line hectometer cooling bed arm strip protection device and cooling bed

Abstract

The utility model discloses a universal line hectometer cooling bed arm strip protection device and a cooling bed, the universal line hectometer cooling bed arm strip protection device comprises a sliding block, the sliding block is installed on the upper side of a sliding block base through a countersunk bolt, and the sliding block base is used for being connected to one side of an arm strip; wherein the wear-resisting property of the sliding block is higher than that of the arm strip of the cooling bed, the hardness of the sliding block is lower than that of a steel rail, and the cooling bed is a universal line hectometer cooling bed provided with the arm strip protection device. After the universal line hectometer cooling bed arm strip protection device is installed, the arm strip of the cooling bed can be protected, the technical problems that the arm strip is difficult to adjust due to abrasion and the surface of a steel rail is scratched after the arm strip is abraded are solved, and meanwhile the service life of the arm strip of the cooling bed is prolonged; the arm strip is easy to maintain, the maintenance cost is reduced, and the quality problem caused by unqualified steel rail surface quality is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hundred-meter rail preparation technical field especially a kind of omnipotent line hundred-meter cooling bed arm strip protection device and cooling bed. BACKGROUND

[0002] The 2 steel rail omnipotent production lines under the banner of Pangang are the first hundred-meter steel rail production line in China and the third in the world, adopt the most advanced seven-stand omnipotent rolling process in the world, and the hundred-meter online heat treatment steel rail line. Among them, the hundred-meter step-by-step large cooling bed has a length of 104.8 m and a width of 37 m, and the main equipment includes a translation system, a lifting system, a fixed frame support and a fixed frame. The cooling bed is composed of 13 groups of lifting and translation transmission devices, and the total weight of the equipment is 2623.95 t. The hundred-meter large cooling bed arm strip has a total of 1121 arm strips. After the arm strips on the upper surfaces of the 13 groups of fixed frames and movable frames are installed, they should be in the same horizontal plane, with an allowable deviation of 0.4 mm per 1000 mm. The precision is high, the cooling bed has a heavy production task, and the arm strip wear and tear adjustment and maintenance cost is high. The arm strip is made of 16Mn low-alloy high-strength structural steel, and the wear resistance of the 16Mn steel plate is general. Due to the busy production of the cooling bed line, the wear and tear between the hundred-meter steel rail and the cooling bed arm strip is intensified. When the arm strip wear exceeds the standard, two consequences will occur. One is that the cooling bed arm strip is horizontally out of standard, affecting the quality of rail transportation. The second is that after the local wear of the arm strip, slight scratches will be formed on the surface of the hundred-meter steel rail, causing surface quality accidents of the steel rail and affecting the appearance and sales of the product.

[0003] Currently, there are two methods to solve the above problem. The first method is to adjust the arm strip seat by increasing or reducing the gasket to adjust the surface elevation of the arm strip, so that the surface elevation of the entire cooling bed is within the specified range. This method has a large workload, is difficult to adjust, has a long construction period and low efficiency. The second method is to increase a bolt adjustment device below the arm strip through technical transformation. When the arm strip needs to be adjusted due to wear, the adjustment of the arm strip elevation can be achieved by tightening the bolts provided below the arm strip. This method has high modification cost, and the final result is that the upper surface of the arm strip is inevitably worn. The limitation of the above two methods is that when the arm strip is worn to a certain extent, the entire arm strip needs to be replaced with a new one, which has high cost and short service life.

[0004] Chinese Patent Application CN2016106336 67.4 discloses a step-by-step cooling bed fixed frame installation leveling method. The invention uses a theodolite to mark the elevation on the foundation bolt, uses a straight powder line as the reference line of the elevation, places a support pad block as a reference object with the powder line, ensures that the height of the pad block is flush with the powder line, then installs the support, places an adjustment pad block on the upper part of the support, installs the arm strip seat, installs the arm strip, completes the installation of all arm strips, directly measures and levels the arm strip, and completely fastens the support after completion. The entire installation process is leveled once, which can reduce the leveling steps in the middle and significantly improve the work efficiency. However, the invention does not address and solve the problem of wear and tear of the steel rail on the arm strip.

[0005] Therefore, the researchers proposed a universal 100-meter cooling bed boom protection device, which solved the problems of difficult boom wear adjustment and the scratching of the rail surface after boom wear, improved the service life of the cooling bed boom, simplified boom maintenance, reduced maintenance costs and quality problems caused by substandard rail surface quality. Utility Model Content

[0006] The purpose of this utility model is to provide a universal 100-meter cooling bed boom protection device and cooling bed, which solves the technical problems of difficult boom wear adjustment and the scratching of the rail surface after boom wear. At the same time, it improves the service life of the cooling bed boom, simplifies boom maintenance, reduces maintenance costs and quality problems caused by substandard rail surface quality.

[0007] To achieve the aforementioned objectives, this utility model provides a universal 100-meter cooling bed boom protection device, characterized in that it includes a slider, which is mounted on the upper side of a slider base via countersunk bolts, and the slider base is used to connect to one side of the boom; wherein,

[0008] The wear resistance of the slider is higher than that of the cooling bed arm, and the hardness of the slider is lower than that of the rail.

[0009] In existing technologies, the boom bar material is typically 16Mn low-alloy high-strength structural steel. 16Mn steel generally has poor wear resistance. Due to the busy cooling bed production line, wear between the 100-meter rail and the cooling bed boom bar intensifies. When the boom bar wear exceeds the standard, two consequences occur: first, the cooling bed boom bar becomes horizontally out of range, affecting the quality of rail transportation; second, localized wear on the boom bar can create slight scratches on the surface of the 100-meter rail, causing surface quality issues and affecting product aesthetics and quality. The boom bar protection device of this invention uses a slider base to install a slider on one side of the boom bar. Direct contact between the rail and the slider replaces direct contact with the boom bar, avoiding friction between the rail and the boom bar. Furthermore, because the slider's hardness is lower than that of the rail, it will not scratch the rail. When the slider is damaged, it can be easily removed and replaced, making replacement easy and cost-effective, significantly reducing maintenance costs and quality problems caused by substandard rail surface quality.

[0010] Preferably, after the slider is installed on the arm bar, its top side is 4-6mm higher than the top side of the corresponding arm bar; more preferably, after the slider is installed on the arm bar, its top side is 5mm higher than the top side of the corresponding arm bar. This height difference better protects the arm bar from wear and tear, ensuring safety and stability.

[0011] According to the utility model, in a universal 100-meter cooling bed arm protection device, preferably, the material of the slider is one of Q345B, Q355B, or 20CrMnTi alloy steel.

[0012] According to the utility model discloses a kind of universal line hundred-meter cooling bed arm strip protection device, preferably, the sliding block base is installed in the side of arm strip by plug welding.

[0013] According to the utility model discloses a kind of universal line hundred-meter cooling bed arm strip protection device, preferably, the sliding block base is L-shaped angle steel.

[0014] According to the utility model discloses a kind of universal line hundred-meter cooling bed arm strip protection device, preferably, the length of the sliding block is 0.5-2 meters.

[0015] In addition, the utility model also provides a kind of universal line hundred-meter cooling bed, including several arm strip seats, several arm strips are installed on the arm strip seat, several the universal line hundred-meter cooling bed arm strip protection device of the utility model is installed in the length direction of the arm strip and is connected in head and tail, the sliding block of the protection device is installed on the same side of arm strip by sliding block base, the top side of several sliding blocks is in the same horizontal plane and height is higher than the top side of arm strip.

[0016] According to the utility model discloses a kind of universal line hundred-meter cooling bed, preferably, the top side of several sliding blocks is higher than the top side of the arm strip 4-6mm.

[0017] According to the utility model discloses a kind of universal line hundred-meter cooling bed, preferably, the sliding block of each protection device is fixed on the upper side of sliding block by 2-4 8.8 level M8 countersunk head bolt.

[0018] According to the utility model discloses a kind of universal line hundred-meter cooling bed, preferably, the sliding block base of each protection device is installed on the side of arm strip by 2-4 φ20mm hole plug welding.

[0019] According to the utility model discloses a kind of universal line hundred-meter cooling bed, preferably, the sliding block base of each protection device is 45mm thickness angle steel.

[0020] The utility model has the advantages that:

[0021] The utility model discloses a kind of universal line hundred-meter cooling bed arm strip protection device, solves the difficult problem that cold bed arm strip abrasion influences steel rail transport quality, steel rail surface scratch, maintenance cost is high.

[0022] With the following technical effects:

[0023] 1) the installation of protection device prevents arm strip body abrasion, and after protection device is damaged, only alloy sliding block can be replaced, alloy sliding block is small, and is replaced simply, easy to operate, maintenance is simple, and maintenance cost is low.

[0024] 2) the protection device is welded on the arm strip through the sliding block base, the welding strength meets the safety requirement, the device is safe, and the sliding block is fixed and cannot move forward, backward, left and right, and is reliable.

[0025] 3) the hardness of the sliding block is lower than that of the steel rail, and the quality problem of scratching the surface of the steel rail is not caused.

[0026] In conclusion, the protection device solves the technical problems of difficult adjustment of arm strip wear and scratch of the surface of the steel rail after the wear of the arm strip, improves the service life of the arm strip of the cold bed, and makes the maintenance of the arm strip simple and reduces the maintenance cost and the quality problem caused by the unqualified surface quality of the steel rail. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present utility model, and other embodiments can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0028] Figure 1 It is a structure schematic view of a universal wire hundred-meter cold bed arm strip protection device of the present utility model.

[0029] Figure 2 It is a structure schematic view of a universal wire hundred-meter cold bed of the present utility model.

[0030] In the figure, 1 is a sliding block base, 2 is a sliding block, 3 is a countersunk bolt, 4 is a plug welding hole, 5 is an arm strip, and 6 is an arm strip seat. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present utility model more clear and obvious, the embodiments of the present utility model are further described in detail below, and reference is made to the drawings.

[0032] The hundred-meter stepping type large cold bed has a length of 104.8m and a width of 37m, and the main equipment of the stepping cold bed includes a translation system, a lifting system, a fixed frame support and a fixed frame. The stepping cold bed is composed of 13 groups of lifting and translation transmission devices, the total weight of the equipment is 2623.95t, the hundred-meter large cold bed has 1121 arm strips which are sequentially and first connected to form a group, the upper surfaces of the arm strips of the 13 groups of fixed frames and mobile frames are installed after the installation and should be in the same horizontal plane, the tolerance is 0.4mm / 1000mm, the precision is high, the cold bed production task is heavy, the arm strip wear adjustment and maintenance cost are high.

[0033] In the prior art, the material of the arm strip is 16Mn low alloy high strength structural steel, and the wear resistance of 16Mn steel is general. Due to the busy production line of the cooling bed, the wear between the hundred-meter rail and the arm strip of the cooling bed is intensified. When the wear of the arm strip exceeds the standard, two consequences are caused. One is that the horizontal wear of the arm strip of the cooling bed exceeds the standard, which affects the quality of rail transportation. The second is that after the local wear of the arm strip, slight scratches are formed on the surface of the hundred-meter rail, which causes the surface quality accident of the rail and affects the appearance and quality of the product.

[0034] In view of the above technical problems, the utility model provides a kind of omnipotent line hundred-meter cooling bed arm strip protection device, and its specific implementation scheme is as follows:

[0035] A kind of omnipotent line hundred-meter cooling bed arm strip protection device, including sliding block, sliding block is installed on the upper side of sliding block base by countersunk head bolt, and sliding block base is used to install in the side of arm strip;Wherein, the wear resistance of sliding block is less than the wear resistance of rail, and the hardness of sliding block is lower than the hardness of rail;

[0036] As a specific implementation scheme of the utility model, the material of sliding block is one of Q345B, Q355B, 20CrMnTi alloy steel;Preferably, sliding block base is installed on the side of arm strip by plug welding;More preferably, sliding block base is L-shaped angle steel.

[0037] As another specific implementation scheme of the utility model, the length of sliding block is 0.5-2 meters;Preferably, the length of sliding block is 0.5-1.5 meters;More preferably, the length of sliding block is 1 meter.

[0038] In addition, the utility model also provides a kind of omnipotent line hundred-meter cooling bed, including several arm strip seats, several arm strips are installed on several arm strip seats, and several arm strip protection devices as described above are installed in the length direction of arm strip and are connected in head and tail, the sliding block of protection device is installed on the same side of arm strip by sliding block base, and the top side of several sliding blocks is in the same horizontal plane and the height is higher than the top side of arm strip.

[0039] As a specific implementation scheme of the utility model, the top side of several sliding blocks is higher than the top side of arm strip by 4-6mm;Preferably, the sliding block of each protection device is fixed on the upper side of sliding block by 2-4 8.8 grade M8 countersunk head bolts;More preferably, the sliding block base of each protection device is plugged on the side of arm strip by 2-4 φ20mm holes;

[0040] As another specific implementation scheme of the utility model, the sliding block base of each protection device is 45mm thick angle steel.

[0041] The utility model discloses a protection device is installed on the arm strip of omnipotent line hundred meters cooling bed, solved the arm strip wear and tear adjustment difficult, arm strip wear and tear after the technical problem of scratch rail surface, improve the service life of cooling bed arm strip simultaneously, make the arm strip maintenance simple, reduce the maintenance cost and the quality problem caused by the unqualified quality of rail surface, have very important significance.

[0042] Embodiment 1

[0043] As Figure 1 The utility model discloses a protection device is installed on the arm strip of omnipotent line hundred meters cooling bed, solved the arm strip wear and tear adjustment difficult, arm strip wear and tear after the technical problem of scratch rail surface, improve the service life of cooling bed arm strip simultaneously, make the arm strip maintenance simple, reduce the maintenance cost and the quality problem caused by the unqualified quality of rail surface, have very important significance.

[0044] The utility model discloses a protection device is installed on the arm strip of omnipotent line hundred meters cooling bed, solved the arm strip wear and tear adjustment difficult, arm strip wear and tear after the technical problem of scratch rail surface, improve the service life of cooling bed arm strip simultaneously, make the arm strip maintenance simple, reduce the maintenance cost and the quality problem caused by the unqualified quality of rail surface, have very important significance.

[0045] Embodiment 2

[0046] As Figures 1-2 The utility model discloses a protection device is installed on the arm strip of omnipotent line hundred meters cooling bed, solved the arm strip wear and tear adjustment difficult, arm strip wear and tear after the technical problem of scratch rail surface, improve the service life of cooling bed arm strip simultaneously, make the arm strip maintenance simple, reduce the maintenance cost and the quality problem caused by the unqualified quality of rail surface, have very important significance.

[0047] Those skilled in the art should understand that the above discussion of any embodiment is only exemplary and is not intended to limit the scope (including claims) of the utility model embodiments disclosed; under the idea of the utility model embodiments, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes of different aspects of the utility model embodiments as described above. In order to be brief, they are not provided in details. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the utility model embodiments should be included in the protection scope of the utility model embodiments.

Claims

1. A universal cable 100-meter cooling bed arm protection device, characterized in that, The system includes a slider, which is mounted to the upper side of a slider base via countersunk bolts. The slider base is used to connect to one side of the arm. The wear resistance of the slider is higher than that of the cooling bed arm, and the hardness of the slider is lower than that of the rail.

2. The universal cable 100-meter cooling bed arm protection device according to claim 1, characterized in that, The slider is made of one of the following materials: Q345B, Q355B, or 20CrMnTi alloy steel.

3. The universal cable 100-meter cooling bed arm protection device according to claim 1, characterized in that, The slider base is installed on one side of the arm bar by plug welding.

4. The universal cable 100-meter cooling bed arm protection device according to claim 1, characterized in that, The slider base is an L-shaped angle steel.

5. A universal cable 100-meter cooling bed arm protection device according to claim 1, characterized in that, The length of the slider is 0.5-2 meters.

6. A universal 100-meter cooling bed, characterized in that, It includes several arm bar seats, on which arm bars are installed. Several universal 100-meter cooling bed arm bar protection devices as described in any one of claims 1-5 are connected end to end along the length direction of the arm bars. The sliders of the protection devices are installed on the same side of the arm bars through slider bases. The top sides of the several sliders are on the same horizontal plane and are higher than the top side of the arm bars.

7. A universal 100-meter cooling bed according to claim 6, characterized in that, The top sides of several of the sliders are 4-6 mm higher than the top side of the arm.

8. A universal 100-meter cooling bed according to claim 6, characterized in that, Each protective device's slider is secured to the upper side of the slider by 2-4 M8 countersunk bolts of grade 8.

8.

9. A universal 100-meter cooling bed according to claim 6, characterized in that, Each of the protective devices has its slider base welded to one side of the arm bar via 2-4 φ20mm plug holes.

10. A universal 100-meter cooling bed according to claim 6, characterized in that, The slider base of each of the aforementioned protective devices is made of 45mm thick angle steel.

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