Cold-rolling mill bearing chock cooling device

Abstract

The utility model belongs to rolling mill cooling equipment technical field especially is related to a kind of cold rolling mill bearing seat cooling device, including the main pipe connected with fire control pipeline, water source valve and drain valve are sequentially arranged on the main pipe, the end of the main pipe is vertically provided with a plurality of first branch pipes, the first branch pipe is arranged at the both sides of rolling mill, the first branch pipe is inclined downward and is evenly provided with a plurality of second branch pipes, the second branch pipe is connected with spray assembly, the spray assembly is set on the side above of the roll bearing seat of the rolling mill. Spray assembly is used to spray fire water to high-temperature bearing seat, and effective fire extinguishing is carried out when rolling mill reignites due to high temperature of damaged bearing seat during operation of aluminum plate strip foil full oil rolling mill. Drain valve is arranged behind water source valve to prevent water from flowing into rolling mill when water source valve fails, and normal production of rolling mill is ensured. Spray assembly is installed on the side above of bearing seat to ensure that bearing seat replacement is not affected.

Description

Technical Field

[0001] This utility model belongs to the technical field of rolling mill cooling equipment, and in particular relates to a cooling and temperature reduction device for a cold rolling mill bearing seat. Background Technology

[0002] In the aluminum processing industry, for example, all-oil rolling mills for aluminum plates, strips, and foils are typically equipped with gas fire suppression systems.

[0003] During the production process of aluminum sheet, strip, and foil fully oil-oil rolling mills, rolling oil needs to be sprayed onto the upper and lower surfaces of the product due to process requirements. After the mill operates normally, a large amount of oil mist is generated. When the strip breaks, sparks often cause a fire. Currently, all fully oil-oil rolling mills in the industry are equipped with gas fire suppression systems, which are generally effective in extinguishing fires. However, fires caused by damage to the roll bearing housing during high-speed operation of the fully oil-oil rolling mill, leading to overall heating of the bearing housing, often reignite after the extinguishing agent in the gas fire suppression system has been exhausted due to the high temperature of the damaged bearing housing. Secondly, due to the space limitations of the rolling mill location, placing fire suppression devices outside the bearing housing can easily affect the disassembly and assembly of the bearing housing. Therefore, when disassembling and assembling the bearing housing, the fire suppression device must be disassembled and assembled beforehand, which is cumbersome, time-consuming, and labor-intensive. Utility Model Content

[0004] In view of the technical problems existing in the background art, this utility model provides a cooling and temperature reduction device for cold rolling mill bearing housing.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A cooling device for a cold rolling mill bearing housing includes a main pipe connected to a fire-fighting pipeline. A water source valve and a drain valve are sequentially installed on the main pipe. Several first branch pipes are vertically installed at the end of the main pipe. The first branch pipes are installed on both sides of the rolling mill. Several second branch pipes are evenly distributed downwards on the first branch pipes. The second branch pipes are connected to a spray assembly. The spray assembly is installed above and to the side of the rolling mill's roll bearing housing.

[0007] Optionally, the rolling mill is a four-high rolling mill, which includes two support rolls and two work rolls. The roll bearing housing includes a work roll bearing housing and a support roll bearing housing. The work roll bearing housing is used to fix the work rolls, and the support roll bearing housing is used to fix the support rolls. Each first branch pipe is provided with three second branch pipes. The upper second branch pipe is located above the upper support roll bearing housing, the middle second branch pipe is located above the upper work roll bearing housing, and the lower second branch pipe is located above the lower support roll bearing housing.

[0008] Optionally, the main pipe is fixed to the crossbeam by a tie rod assembly, the tie rod assembly including a U-shaped screw, the main pipe being disposed inside the screw, the screw passing through the crossbeam, and the screw being provided with several locking nuts.

[0009] Optionally, the spray assembly includes a nozzle connected to a second branch pipe.

[0010] Optionally, the spray assembly includes a nozzle, a hose, and a sliding frame. A sliding sleeve is provided on one side of the sliding frame. The sliding sleeve is slidably mounted on the outer wall of the second branch pipe. One end of the hose is connected to the second branch pipe, and the other end of the hose is connected to the nozzle. The nozzle is fixedly connected to the sliding frame. A locking screw is provided on the sliding sleeve.

[0011] Optionally, a first flange is provided at the end of the second branch pipe, a second flange and a third flange are provided on both sides of the hose respectively, and a fourth flange is provided on one side of the sliding frame. The first flange and the second flange are connected by bolts, and the third flange and the fourth flange are connected by bolts.

[0012] Optionally, a first spring is fitted on the outer wall of the second branch pipe between the sliding sleeve and the first flange.

[0013] Optionally, the sliding frame is configured as a semi-circular shape, the flexible tube is disposed on the bottom side of the sliding frame, and an adjustment component is slidably disposed on the sliding frame, the adjustment component being connected to the flexible tube.

[0014] Optionally, the sliding frame is provided with a sliding groove, and the adjustment component includes an arc-shaped slider. A hook with a notch is integrally connected to the bottom side of the slider, and a closure is provided on the notch of the hook. The hook and the closure are closed to form an annular clamping hose.

[0015] Optionally, a mounting block is provided at one end of the slide near the nozzle, and a second spring is provided on the mounting block. The second spring is arranged along the length of the slide, and one end of the second spring abuts against the adjustment component.

[0016] This utility model has the following advantages and beneficial effects:

[0017] In this invention, when the spray assembly sprays fire-fighting water onto the high-temperature bearing housing, a large amount of water vapor is generated. The water vapor displaces the surrounding air, achieving the effect of isolating and extinguishing the fire. The fire-fighting water sprayed onto the bearing housing and roller system dilutes the rolling oil. The fire-fighting water effectively cools the high-temperature bearing housing, effectively extinguishing the fire that may occur in the operation of an aluminum plate, strip, and foil all-oil rolling mill when the high temperature of the damaged bearing housing causes the mill to reignite.

[0018] In this invention, a spray assembly is installed above the roll bearing housing. The spray assembly is connected to the existing indoor fire protection pipe network. The water intake point is lower than the spray assembly. A drain valve is installed after the water source valve to prevent water from flowing into the rolling mill in case of water source valve failure, thus ensuring normal production of the rolling mill.

[0019] In this invention, the spray assembly is installed above the bearing housing to ensure that it does not affect the replacement of the bearing housing.

[0020] In this invention, the adjustable spray assembly facilitates the adjustment of the spray interval between the spray assembly and the bearing housing, allowing for adaptive spraying adjustments to support roller bearing housings and work roller bearing housings at different locations. Simultaneously, during the disassembly and assembly of the bearing housings, the spray assembly can be retracted, providing sufficient construction space for bearing housing replacement, improving replacement efficiency, and preventing damage to the spray assembly. Attached Figure Description

[0021] Figure 1 This is one of the structural diagrams of the cooling and heat dissipation device for the bearing housing of the intermediate cold rolling mill of this utility model;

[0022] Figure 2 This is the second structural diagram of the cooling and heat dissipation device for the bearing housing of the cold rolling mill of this utility model;

[0023] Figure 3 This is one of the structural diagrams of the spray assembly in this utility model;

[0024] Figure 4 This is the second structural diagram of the spray assembly in this utility model;

[0025] Figure 5 This is a front view of the spray assembly in this utility model;

[0026] Figure 6 This is a connection structure diagram of the second branch pipe, hose, and nozzle in this utility model;

[0027] Figure 7 This is a structural diagram of the sliding frame in this utility model.

[0028] Reference numerals: 1-Support roller bearing housing, 11-Support roller, 2-Working roller bearing housing, 21-Working roller, 3-Fire pipe, 31-Water source valve, 32-Drain pipe, 33-Drain valve, 34-Main pipe, 35-First branch pipe, 36-Second branch pipe, 37-First flange, 4-Sprinkler head, 5-Crossbeam, 51-Screw, 52-Locking nut, 6-Sliding frame, 61-Sliding sleeve, 62-Sliding groove, 63-Locking screw, 64-First spring, 65-Mounting block, 66-Second spring, 67-Fourth flange, 7-Slider, 71-Hook, 72-Sealing component, 8-Hose, 81-Second flange, 82-Third flange. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] Example 1

[0032] like Figure 1 As shown, a cooling device for a cold rolling mill bearing housing includes a main pipe 34 connected to a fire-fighting pipeline 3. A water source valve 31 and a drain valve 33 are sequentially installed on the main pipe 34. Two water source valves 31 are installed on the main pipe 34. A drain pipe 32 is horizontally installed on the main pipe 34, and a drain valve 33 is installed on the drain pipe 32. Several first branch pipes 35 are vertically installed at the end of the main pipe 34, located on both sides of the rolling mill. Several second branch pipes 36 are evenly distributed downwards on the first branch pipes 35, and the second branch pipes 36 are connected to a spray assembly located above and to the side of the rolling mill's roll bearing housing.

[0033] In this invention, the rolling mill is a four-high rolling mill, comprising two support rolls 11 and two work rolls 21. The roll bearing housing includes a work roll bearing housing 2 and a support roll bearing housing 1. The two support rolls 11 are located on the upper and lower sides, and the two work rolls 21 are located between the two support rolls 11. The work roll bearing housing 2 is used to fix the work rolls 21, and the support roll bearing housing 1 is used to fix the support rolls 11. Each first branch pipe 35 is provided with three second branch pipes 36. The second branch pipe 36 located on the upper side is located above the upper support roll bearing housing 1, the second branch pipe 36 located in the middle is located above the upper work roll bearing housing 2, and the second branch pipe 36 located on the lower side is located above the lower support roll bearing housing 1.

[0034] In this invention, when the spray assembly sprays fire-fighting water onto the high-temperature bearing housing, a large amount of water vapor is generated. The water vapor displaces the surrounding air, achieving the effect of isolating and extinguishing the fire. The fire-fighting water sprayed onto the bearing housing and roller system dilutes the rolling oil. The fire-fighting water effectively cools the high-temperature bearing housing, effectively extinguishing the fire that may occur in the operation of an aluminum plate, strip, and foil all-oil rolling mill when the high temperature of the damaged bearing housing causes the mill to reignite.

[0035] In this invention, the spray assembly is installed above the bearing housing to ensure that it does not affect the replacement of the bearing housing.

[0036] In this invention, the bottom end of the main pipe 34, i.e., the position of the drain pipe 32, is lower than the position of the spray assembly.

[0037] In this utility model, a spray assembly is installed above the roll bearing housing. The spray assembly is connected to the existing indoor fire protection pipeline. The water intake point is lower than the spray assembly. The drain valve 33 is normally open and the water source valve 31 is normally closed. A drain valve 33 is installed behind the water source valve 31 to prevent water from flowing into the rolling mill in case of a malfunction of the water source valve 31, thus ensuring normal production of the rolling mill.

[0038] In this utility model, the main pipe 34 is fixed to the crossbeam 5 by a tie rod assembly. The tie rod assembly includes a U-shaped screw 51. The main pipe 34 is disposed inside the screw 51. The screw 51 passes through the crossbeam 5. Several locking nuts 52 are provided on the screw 51. The locking nuts 52 are used to connect and fix the tie rod assembly to the main pipe 34 and the crossbeam 5, thereby achieving the suspension and fixation of the main pipe 34.

[0039] As one preferred embodiment, the spray assembly includes a nozzle 4, which is connected to a second branch pipe 36.

[0040] Example 2

[0041] Based on Example 1, this embodiment further optimizes the design to improve the ease and efficiency of disassembling and assembling the bearing housings (work roll bearing housing 2 and support roll bearing housing 1).

[0042] like Figures 2-7 As shown, as another preferred embodiment, the spray assembly includes a nozzle 4, a hose 8, and a sliding frame 6. A sliding sleeve 61 is provided on one side of the sliding frame 6. The sliding sleeve 61 is slidably disposed on the outer wall of the second branch pipe 36. One end of the hose 8 is connected to the second branch pipe 36, and the other end of the hose 8 is connected to the nozzle 4. The nozzle 4 is fixedly connected to the sliding frame 6. A locking screw 63 is provided on the sliding sleeve 61.

[0043] This design allows for precise spraying by simply adjusting the position of the sliding frame 6 to be positioned close to the upper side of the corresponding bearing housing. When installing or removing the bearing housing, the sliding frame 6 can be retracted to move the nozzle 4 away from the bearing housing, freeing up more space for installation and removal. The adjustable spray assembly facilitates adjustment of the spray interval between the assembly and the bearing housing, allowing for tailored spraying for different locations of the support roller bearing housing 1 and the work roller bearing housing 2. Furthermore, the spray assembly can be retracted during bearing housing installation and removal, providing sufficient space for replacement, improving efficiency, and preventing damage to the spray assembly.

[0044] Furthermore, a first flange 37 is provided at the end of the second branch pipe 36, a second flange 81 and a third flange 82 are provided on both sides of the hose 8 respectively, and a fourth flange 67 is provided on one side of the sliding frame 6. The first flange 37 and the second flange 81 are connected by bolts, and the third flange 82 and the fourth flange 67 are connected by bolts, realizing the detachable connection of the hose 8, the second branch pipe 36, and the sliding frame 6. One end of the nozzle 4 is threaded to the inner wall of the third flange 82 (e.g., ...). Figure 6 (As shown).

[0045] In this invention, a first spring 64 is fitted on the outer wall of the second branch pipe 36 between the sliding sleeve 61 and the first flange 37. With this design, when the sliding frame 6 moves closer to the bearing seat, the first spring 64 is compressed. When the bearing seat needs to be disassembled, simply loosen the locking screw 63, and the return of the first spring 64 will automatically drive the sliding frame 6 and the nozzle 4 away from the bearing seat, thus quickly achieving position adjustment.

[0046] In this utility model, the sliding frame 6 is set in a semi-circular shape, the flexible hose 8 is set on the bottom side of the sliding frame 6, the first spring 64 is set on the bottom side of the sliding frame 6, and the second branch pipe 36 is partially set on the inner side of the sliding frame 6. The sliding frame 6 can be used to achieve protection. An adjustment component is slidably set on the sliding frame 6. The adjustment component is connected to the flexible hose 8. The flexible hose 8 is fixed by the adjustment component and divided into multiple sections for suspension. The flexible hose 8 can be arranged compactly and its position can be easily adjusted.

[0047] Furthermore, the sliding frame 6 is provided with a sliding groove 62, and the adjusting component includes an arc-shaped slider 7. A hook 71 with a notch is integrally connected to the bottom side of the slider 7. A closing member 72 is provided on the notch of the hook 71. The hook 71 and the closing member 72 close to form an annular clamp to hold the hose 8. The inner wall of the slider 7 slides tightly against the outer wall of the sliding frame 6, and the sliding groove 62 is located on the side near the nozzle 4. The adjusting component is connected to the middle position of the hose 8, allowing the hose 8 to be lifted from the middle and folded for placement.

[0048] Furthermore, a mounting block 65 is provided at one end of the slide 62 near the nozzle 4, and a second spring 66 is provided on the mounting block 65. The second spring 66 is arranged along the length of the slide 62, and one end of the second spring 66 abuts against the adjusting component. Figure 3 and Figure 4 As shown, after designing the second spring 66, the hose 8 is lifted from the middle by the adjustment component and divided into two sections for folding. The two sections of hose 8 can be folded or unfolded in sequence, realizing the segmented adjustment of hose 8, which can adapt to different lengths of distance adjustment, and at the same time helps to extend the service life of hose 8.

[0049] like Figure 3 and Figure 4 As shown, the hose 8 is divided into two sections at this time, that is, the hose 8 is divided into two sections by the adjusting component. Both sides of the hose 8 are folded into a V shape. Assume that the hose 8 is in a retracted and folded state at this time, and the nozzle 4 assembly is away from the bearing seat. When spraying is required, the sliding frame 6 slides towards the nozzle 4 (towards the bearing seat), and the first spring 64 is compressed. At this time, only one side of the hose 8 is stretched, that is, the section of hose 8 between the second branch pipe 36 and the adjusting component begins to stretch, while the section of hose 8 between the nozzle 4 and the adjusting component is not stretched. Only when the section of hose 8 between the second branch pipe 36 and the adjusting component is folded to its limit position and stretched to a horizontal state will it act on the adjusting component. At the same time, the sliding component moves and stretches the second spring 66. At this time, the section of hose 8 between the nozzle 4 and the adjusting component begins to stretch, thus realizing the function of segmented stretching and unfolding. This method utilizes an adjustment component to suspend the hose 8 from the middle connection, divides it into two sections, and folds them. The two sections of hose 8 can be folded or unfolded sequentially, realizing segmented adjustment of hose 8. It can be adjusted according to different distances. Segmented adjustment is beneficial to extending the service life of hose 8. Especially when adjusting a small distance, only one section of hose 8 is frequently folded or unfolded, which can ensure that the other section of hose 8 near the bearing seat is not frequently folded or unfolded, reducing the impact of mill side temperature and improving the service life of that section of hose 8.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cooling and temperature-reducing device for a cold rolling mill bearing housing, characterized in that: The system includes a main pipe connected to a fire-fighting pipeline, on which a water source valve and a drain valve are sequentially installed. Several first branch pipes are vertically installed at the end of the main pipe. The first branch pipes are installed on both sides of the rolling mill. Several second branch pipes are evenly distributed downwards on the first branch pipes. The second branch pipes are connected to a spray assembly. The spray assembly is located above and to the side of the roll bearing seat of the rolling mill.

2. The cooling and heat dissipation device for cold rolling mill bearing housing according to claim 1, characterized in that: The rolling mill is a four-high rolling mill, which includes two support rolls and two work rolls. The roll bearing housing includes a work roll bearing housing and a support roll bearing housing. The work roll bearing housing is used to fix the work rolls, and the support roll bearing housing is used to fix the support rolls. Each first branch pipe is provided with three second branch pipes. The upper second branch pipe is located above the upper support roll bearing housing, the middle second branch pipe is located above the upper work roll bearing housing, and the lower second branch pipe is located above the lower support roll bearing housing.

3. The cooling and temperature reduction device for cold rolling mill bearing housing according to claim 1, characterized in that: The main pipe is fixed to the crossbeam by a tie rod assembly, which includes a U-shaped screw. The main pipe is disposed inside the screw, which passes through the crossbeam, and a number of locking nuts are provided on the screw.

4. The cooling and temperature reduction device for cold rolling mill bearing housing according to claim 1, characterized in that: The spray assembly includes a nozzle, which is connected to a second branch pipe.

5. The cooling and temperature reduction device for cold rolling mill bearing housing according to claim 1, characterized in that: The spray assembly includes a nozzle, a hose, and a sliding frame. A sliding sleeve is provided on one side of the sliding frame. The sliding sleeve is slidably mounted on the outer wall of the second branch pipe. One end of the hose is connected to the second branch pipe, and the other end of the hose is connected to the nozzle. The nozzle is fixedly connected to the sliding frame. A locking screw is provided on the sliding sleeve.

6. The cooling and temperature reduction device for cold rolling mill bearing housing according to claim 5, characterized in that: The second branch pipe is provided with a first flange at its end, and the hose is provided with a second flange and a third flange on both sides respectively. The sliding frame is provided with a fourth flange on one side. The first flange and the second flange are connected by bolts, and the third flange and the fourth flange are connected by bolts.

7. The cooling and temperature reduction device for cold rolling mill bearing housing according to claim 6, characterized in that: A first spring is fitted on the outer wall of the second branch pipe between the sliding sleeve and the first flange.

8. The cooling and temperature reduction device for cold rolling mill bearing housing according to claim 7, characterized in that: The sliding frame is semi-circular in shape, the flexible tube is located on the bottom side of the sliding frame, and an adjustment component is slidably mounted on the sliding frame, the adjustment component being connected to the flexible tube.

9. The cooling and heat dissipation device for cold rolling mill bearing housing according to claim 8, characterized in that: The sliding frame is provided with a sliding groove, and the adjustment component includes an arc-shaped slider. A hook with a notch is integrally connected to the bottom side of the slider. A closure is provided on the notch of the hook. The hook and the closure are closed to form an annular clamping hose.

10. The cooling and temperature reduction device for cold rolling mill bearing housing according to claim 9, characterized in that: A mounting block is provided at one end of the slide near the nozzle, and a second spring is provided on the mounting block. The second spring is arranged along the length of the slide, and one end of the second spring abuts against the adjustment component.

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