A hot rolling mill roller table lubrication device

Abstract

The utility model relates to the technical field of aluminum processing, and in particular to a hot rolling mill roller lubrication device, comprising a transport roller and a transmission frame, wherein a plurality of transport rollers are provided, and the transport rollers are evenly spaced and arranged on the transmission frame to form a transport channel, and a plurality of liquid supply parts are provided along the transport direction of the transport channel, and each liquid supply part includes a circulation pipeline and a liquid supply pipe respectively, the circulation pipeline is located at the bottom of the transport roller, and the two ends of the circulation pipeline are connected through a liquid supply system; the liquid supply pipe is located on one side of the transport roller, and one end of the liquid supply pipe is connected to the circulation pipeline, and the other end is a sealing structure, and the liquid supply pipe is evenly arranged with a plurality of liquid discharge pipes, which are metal shaped hoses, one end of the liquid discharge pipe is connected to the liquid supply pipe, and the other end faces the corresponding transport roller and is provided with a nozzle, one end of the nozzle is connected to the liquid discharge pipe, and the other end is a flat head opening structure. The utility model can evenly lubricate the hot rolling mill transport roller, and effectively prevent the roller from frequently sticking aluminum.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum processing, in particular to a hot rolling mill roller table lubrication device. Background Art

[0002] Aluminum hot rolling is a rolling process above the recrystallization temperature. After the plate ingot is cast, the head and tail are cut off by a sawing machine, and then the temperature of the plate ingot is kept in a relatively high temperature range after milling and heat-averaging treatment, and then rolled by a hot rolling mill. After rolling by the hot rolling mill, the product is converted from a plate ingot (thickness 300-500mm) to an aluminum strip (3-8mm). During the rolling process, the plate ingot reciprocates through the roller gap of the hot rolling mill to achieve thickness reduction. The lubrication of the hot rolling mill transport roller that bears the weight of the plate ingot is crucial to the hot rolling surface. Poor lubrication will cause aluminum to stick to the roller, resulting in damage to the rolling material surface.

[0003] Lubrication nozzles are set up to spray lubricating liquid on the transport rollers to achieve lubrication of the hot rolling mill transport rollers. The current transport roller lubrication nozzles are generally fixed in design. When the width specification of the coil rolling is adjusted, the lubrication nozzles will not match the coil rolling width. As a result, some nozzles cannot spray onto the working surface of the rollers, causing frequent aluminum sticking to the rollers during the production process, affecting aluminum rolling. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a hot rolling mill roller lubrication device, which can evenly lubricate the hot rolling mill transport roller and effectively avoid frequent aluminum sticking to the roller.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A hot rolling mill roller lubrication device comprises a transport roller and a transport frame, wherein a plurality of transport rollers are provided, and the transport rollers are evenly spaced and arranged on the transport frame to form a transport channel, and a plurality of liquid supply parts are provided along the transport direction of the transport channel, and each of the liquid supply parts comprises a circulation pipeline and a liquid supply pipe, wherein the circulation pipeline is located at the bottom of the transport roller, and both ends of the circulation pipeline are connected through a liquid supply system;

[0007] There are multiple liquid supply pipes, and the liquid supply pipes are located on one side of the transport roller. One end of the liquid supply pipe is conductively connected to the circulation pipeline, and the other end is a sealing structure. A plurality of discharge pipes are evenly arranged on the liquid supply pipe. The discharge pipe is a metal shaped hose. One end of the discharge pipe is conductively connected to the liquid supply pipe, and the other end faces the corresponding transport roller and is provided with a nozzle. One end of the nozzle is conductively connected to the discharge pipe, and the other end is a flat-headed opening structure.

[0008] Furthermore, the liquid supply system includes a liquid storage tank, the liquid outlet end of the liquid storage tank is conductively connected to one end of the circulation pipeline through a liquid outlet pipe, and a liquid supply pump is provided at the end of the liquid outlet pipe close to the liquid storage tank; the liquid inlet end of the liquid storage tank is conductively connected to the other end of the circulation pipeline through a liquid return pipe, and a liquid return pump is provided at the end of the liquid return pipe close to the liquid storage tank.

[0009] Further, two adjacent liquid supply parts constitute an associated group, and the associated group is provided with a first spare pipe and a second spare pipe, the two ends of the first spare pipe are respectively connected to the two liquid outlet pipes of the associated group, and the first spare pipe is provided with a first switch valve; the two ends of the second spare pipe are respectively connected to the two liquid return pipes of the associated group, and the second spare pipe is provided with a second switch valve;

[0010] The liquid outlet pipe is provided with a third switch valve, and the third switch valve is located between the first standby pipe and the liquid supply pump; the liquid return pipe is provided with a fourth switch valve, and the fourth switch valve is located between the second standby pipe and the liquid return pump.

[0011] Furthermore, each of the liquid discharge pipes is provided with a fixing frame, the fixing frame is sleeved outside the liquid discharge pipe corresponding to the liquid discharge pipe, and the fixing frame is located at one end of the liquid discharge pipe close to the nozzle.

[0012] Furthermore, the fixed frame includes a first frame body and a second frame body, one side of the first frame body is recessed with first semicircular grooves having the same number as the drainage tubes corresponding to the drainage tubes, and one side of the second frame body is recessed with second semicircular grooves having the same number and diameter as the first semicircular grooves, the first frame body is connected to the second frame body by screws, and the first semicircular grooves and the second semicircular grooves constitute a fixing hole so that the fixing hole can clamp the drainage tube.

[0013] Furthermore, a connecting ring is fixedly sleeved on the outer wall of the liquid discharge pipe, a clamping groove is recessed on the outer wall of the connecting ring, and the first semicircular groove and the second semicircular groove can be embedded in the clamping groove.

[0014] The beneficial effects of the utility model are:

[0015] The drain pipe is a metal shaped hose that can be bent arbitrarily and determine the direction. By adjusting the spray angle of the nozzle and the distance between the nozzle and the transport roller, the lubricating liquid can fully cover the transport roller, and the thickness of the oil film sprayed onto the roller is thicker, and the roller lubrication effect is significantly improved, which effectively solves the problem that the lubricating nozzle of the hot rolling transport roller cannot spray to the working surface. The flat head opening structure of the nozzle is used to solve the problem that the lubricating nozzle of the hot rolling transport roller is easy to be blocked. In the traditional scheme, the transport roller and the hot rolling mill body use the same lubricating liquid supply system. Since the transport roller is too long, the oil pressure at the far end is insufficient. The utility model divides the lubricating liquid supply of the transport roller into multiple sections by setting up a plurality of liquid supply parts. At the same time, each section of the transport roller is provided with lubricating liquid through the liquid supply system, and at the same time solves the problem that the rolling mill emulsion has insufficient pressure due to diversion, which affects rolling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a hot rolling mill roller table lubrication device according to a preferred embodiment of the utility model.

[0017] Figure 2 It is a schematic diagram of the nozzle structure of a hot rolling mill roller lubrication device in a preferred embodiment of the utility model.

[0018] Figure 3 It is a schematic diagram of the fixed frame structure of a hot rolling mill roller lubrication device in a preferred embodiment of the utility model.

[0019] In the figure, 1-transport roller, 11-transmission frame, 2-circulation pipeline, 3-liquid supply pipe, 31-liquid discharge pipe, 32-nozzle, 4-liquid storage tank, 41-liquid outlet pipe, 411-liquid supply pump, 42-liquid return pipe, 421-liquid return pump, 51-first spare pipe, 52-second spare pipe, 531-first switch valve, 532-second switch valve, 533-third switch valve, 534-fourth switch valve, 6-fixing frame, 60-fixing hole, 61-first frame body, 611-first semicircular groove, 62-second frame body, 621-second semicircular groove, 63-screw, 64-connecting ring, 641-slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] Please also see Figures 1 to 3 A hot rolling mill roller lubrication device according to a preferred embodiment of the utility model comprises a transport roller 1 and a transmission frame 11.

[0024] A plurality of transport rollers 1 are provided, and the transport rollers 1 are evenly spaced apart on the transmission frame 11 to form a transport channel, which is characterized in that a plurality of liquid supply parts are provided along the transport direction of the transport channel, each liquid supply part includes a circulation pipeline 2 and a liquid supply pipe 3, the circulation pipeline 2 is located at the bottom of the transport roller 1, and both ends of the circulation pipeline 2 are connected by a liquid supply system.

[0025] The liquid supply system of this embodiment includes a liquid storage tank 4, the liquid outlet end of the liquid storage tank 4 is conductively connected to one end of the circulation pipeline 2 through a liquid outlet pipe 41, and a liquid supply pump 411 is provided at the end of the liquid outlet pipe 41 close to the liquid storage tank 4; the liquid inlet end of the liquid storage tank 4 is conductively connected to the other end of the circulation pipeline 2 through a liquid return pipe 42, and a liquid return pump 421 is provided at the end of the liquid return pipe 42 close to the liquid storage tank 4. Preferably, a liquid outlet valve 412 is provided at the end of the liquid outlet pipe 41 away from the liquid supply pump 411, and a liquid return valve 422 is provided at the end of the liquid return pipe 42 away from the liquid storage tank 4, so as to realize opening or closing of the circulation pipeline 2.

[0026] There are multiple liquid supply pipes 3, which are located on one side of the transport roller 1, and one end of the liquid supply pipe 3 is conductively connected to the circulation pipeline 2, and the other end is a sealing structure. The liquid supply pipe 3 is evenly arranged with a plurality of discharge pipes 31, and the discharge pipe 31 is a metal shaped hose. One end of the discharge pipe 31 is conductively connected to the liquid supply pipe 3, and the other end faces the corresponding transport roller 1 and is provided with a nozzle 32. One end of the nozzle 32 is conductively connected to the discharge pipe 31, and the other end is a flat head opening structure.

[0027] The discharge pipe 31 is a metal shaped hose that can be bent arbitrarily and determine the direction. By adjusting the spray angle of the nozzle 32 and the distance between the nozzle 32 and the transport roller 1, the lubricating liquid can fully cover the transport roller 1, and the thickness of the oil film sprayed on the roller is thicker, and the roller lubrication effect is significantly improved, effectively solving the problem that the lubricating nozzle of the hot rolling transport roller cannot spray to the working surface. The flat head opening structure of the nozzle 32 solves the problem that the lubricating nozzle of the hot rolling transport roller is easy to be blocked.

[0028] During the rolling process, the thickness of the plate ingot gradually decreases and the length gradually increases, which requires a longer transport roller (70-100m). The original transport roller lubricant is directly supplied from the branch of the rolling mill emulsion system. The distance is long and the required lift is large. The pressure and flow supplied to the far end are seriously insufficient, resulting in insufficient lubrication of the far-end transport roller, which is very easy to cause aluminum sticking. In addition, the supply from the branch of the hot rolling mill emulsion system will cause the emulsion supply of the rolling mill body to be insufficient in pressure due to diversion, affecting rolling. This embodiment divides the lubricant supply of the transport roller 1 into multiple sections by setting up a plurality of liquid supply parts. At the same time, each section of the transport roller 1 is provided with lubricant through the liquid supply system, which solves the problem of insufficient pressure of the rolling mill emulsion due to diversion, affecting rolling.

[0029] In this embodiment, the lubrication position and angle can be adjusted by the nozzle 32, the spray coverage is wider, and the thickness of the oil film sprayed to the roller is thicker, and the roller lubrication effect is significantly improved. The lubricating fluid of each liquid supply part is provided by an independent supply system, with a shorter head, a larger flow rate and pressure, and a faster oil return. It does not cross with the hot rolling mill emulsion system and does not affect rolling. In addition, a cutting fluid that is cheaper than the rolling emulsion can be selected to prepare the lubricating fluid, thereby reducing costs.

[0030] like Figure 1 As shown, two adjacent liquid supply parts constitute an associated group, and the associated group is provided with a first spare pipe 51 and a second spare pipe 52, the two ends of the first spare pipe 51 are respectively conductively connected to the two liquid outlet pipes 41 of the associated group, and the first spare pipe 51 is provided with a first switch valve 531; the two ends of the second spare pipe 52 are respectively conductively connected to the two liquid return pipes 42 of the associated group, and the second spare pipe 52 is provided with a second switch valve 532.

[0031] The liquid outlet pipe 41 is provided with a third switch valve 533 , which is located between the first standby pipe 51 and the liquid supply pump 411 ; the liquid return pipe 42 is provided with a fourth switch valve 534 , which is located between the second standby pipe 52 and the liquid return pump 421 .

[0032] In the present embodiment, a 1# liquid storage tank 4 and a 2# liquid storage tank 4 are provided. When the liquid supply pump 411 and the liquid return pump 421 corresponding to the 1# liquid storage tank fail, the third switch valve 533 and the fourth switch valve 534 corresponding to the 1# liquid storage tank 4 are controlled to be closed, and the first switch valve 531 and the second switch valve 532 are controlled to be opened, so that the lubricating fluid of the 2# liquid storage tank 4 enters the circulation pipeline 2 corresponding to the 1# liquid storage tank 4 through the first spare pipe 51 and the second spare pipe 52, thereby ensuring the supply of lubricating fluid to the transport roller 1 and reducing the impact caused by the failure of the liquid supply pump 411 and the liquid return pump 421 corresponding to the 1# liquid storage tank.

[0033] In the associated group, when the liquid supply pump 411 and the liquid return pump 421 of the liquid storage tank 4 of one circulation pipeline 2 fail, the liquid supply pump 411 and the liquid return pump 421 of the other liquid storage tank 4 can provide lubricating liquid to the other circulation pipeline 2 to avoid the lack of lubricating liquid for the transport roller 1, effectively avoid the occurrence of aluminum sticking, and ensure the stability of rolling.

[0034] like Figure 1 and Figure 3 As shown, each drain pipe 31 is provided with a fixing frame 6, the fixing frame 6 is sleeved outside the drain pipe 31 corresponding to the drain pipe 31, and the fixing frame 6 is located at one end of the drain pipe 31 close to the nozzle 32. Under the action of the fixing frame 6, the nozzles 32 on the drain pipe 31 can be uniformly adjusted to ensure that the nozzles 32 can evenly spray the lubricating liquid on the transport roller 1, so that the lubrication effect of the transport roller 1 is significantly improved.

[0035] The fixing frame 6 includes a first frame body 61 and a second frame body 62. One side of the first frame body 61 is recessed with first semicircular grooves 611 having the same number as the drainage pipes 31 corresponding to the drainage pipes 31. One side of the second frame body 62 is recessed with second semicircular grooves 621 having the same number and diameter as the first semicircular grooves 611. The first frame body 61 is connected to the second frame body 62 by screws 63, and the first semicircular grooves 611 and the second semicircular grooves 621 constitute a fixing hole 60 so that the fixing hole 60 can clamp the drainage pipe 31.

[0036] The outer wall of the liquid discharge pipe 31 is fixedly sleeved with a connecting ring 64, and the outer wall of the connecting ring 64 is concavely provided with a clamping groove 641, and the first semicircular groove 611 and the second semicircular groove 621 can be embedded in the clamping groove 641. Under the action of the clamping groove 641 and the fixing hole 60, the fixing frame 6 can be stably fixed on the liquid discharge pipe 31 to prevent the fixing frame 6 from accidentally sliding.

[0037] In this embodiment, mounting holes are provided at both ends of the first frame 61, and threaded holes are provided at both ends of the second frame 62. Screws 63 are slid through the mounting holes and then threadedly embedded in the threaded holes, thereby realizing the installation of the fixing frame 6 to clamp the first frame 61 and the second frame 62 outside the connecting ring 64.

[0038] The operation process of the hot rolling mill roller lubrication device of this embodiment is: start the liquid supply pump 411, and the lubricating liquid in the liquid storage tank 4 enters the circulation pipeline 2, the liquid supply pipe 3, and the liquid discharge pipe 31 in sequence through the liquid outlet pipe 41, and is sprayed out at the nozzle 32 to spray the transport roller 1. At the same time, under the action of the liquid return pump 421, the lubricating liquid in the circulation pipeline 2 enters the liquid storage tank 4 through the liquid return pipe 42.

Claims

1. A hot rolling mill roller lubrication device, comprising a transport roller (1) and a transport frame (11), wherein a plurality of transport rollers (1) are provided, and the transport rollers (1) are evenly spaced and arranged on the transport frame (11) to form a transport channel, characterized in that: A plurality of liquid supply parts are arranged along the transport direction of the transport channel, each of the liquid supply parts comprises a circulation pipeline (2) and a liquid supply pipe (3), the circulation pipeline (2) is located at the bottom of the transport roller (1), and the two ends of the circulation pipeline (2) are connected through a liquid supply system; A plurality of liquid supply pipes (3) are provided, and the liquid supply pipes (3) are located on one side of the transport roller (1); one end of the liquid supply pipe (3) is conductively connected to the circulation pipeline (2), and the other end is a sealing structure; a plurality of liquid discharge pipes (31) are evenly arranged on the liquid supply pipe (3); the liquid discharge pipe (31) is a metal shaped hose; one end of the liquid discharge pipe (31) is conductively connected to the liquid supply pipe (3), and the other end faces the corresponding transport roller (1) and is provided with a nozzle (32); one end of the nozzle (32) is conductively connected to the liquid discharge pipe (31), and the other end is a flat head opening structure.

2. A hot rolling mill roller lubrication device according to claim 1, characterized in that: The liquid supply system comprises a liquid storage tank (4); the liquid outlet end of the liquid storage tank (4) is conductively connected to one end of the circulation pipeline (2) via a liquid outlet pipe (41), and a liquid supply pump (411) is provided at one end of the liquid outlet pipe (41) close to the liquid storage tank (4); the liquid inlet end of the liquid storage tank (4) is conductively connected to the other end of the circulation pipeline (2) via a liquid return pipe (42), and a liquid return pump (421) is provided at one end of the liquid return pipe (42) close to the liquid storage tank (4).

3. A hot rolling mill roller lubrication device according to claim 2, characterized in that: Two adjacent liquid supply parts form an associated group, and the associated group is provided with a first standby pipe (51) and a second standby pipe (52); two ends of the first standby pipe (51) are respectively connected to the two liquid outlet pipes (41) of the associated group, and the first standby pipe (51) is provided with a first switch valve (531); two ends of the second standby pipe (52) are respectively connected to the two liquid return pipes (42) of the associated group, and the second standby pipe (52) is provided with a second switch valve (532); The liquid outlet pipe (41) is provided with a third switch valve (533), and the third switch valve (533) is located between the first standby pipe (51) and the liquid supply pump (411); the liquid return pipe (42) is provided with a fourth switch valve (534), and the fourth switch valve (534) is located between the second standby pipe (52) and the liquid return pump (421).

4. A hot rolling mill roller lubrication device according to claim 1, characterized in that: Each of the liquid discharge pipes (31) is provided with a fixing frame (6), the fixing frame (6) being sleeved outside the liquid discharge pipe (31) corresponding to the liquid discharge pipe (31), and the fixing frame (6) is located at one end of the liquid discharge pipe (31) close to the nozzle (32).

5. A hot rolling mill roller lubrication device according to claim 4, characterized in that: The fixing frame (6) comprises a first frame body (61) and a second frame body (62), wherein one side of the first frame body (61) is provided with a first semicircular groove (611) having the same number as the drainage tubes (31) corresponding to the drainage tubes (31), and one side of the second frame body (62) is provided with a second semicircular groove (621) having the same number and the same diameter as the first semicircular grooves (611), the first frame body (61) is connected to the second frame body (62) by means of screws (63), and the first semicircular grooves (611) and the second semicircular grooves (621) form a fixing hole (60), so that the fixing hole (60) can clamp the drainage tube (31).

6. A hot rolling mill roller lubrication device according to claim 5, characterized in that: The outer wall of the liquid discharge pipe (31) is fixedly sleeved with a connecting ring (64), the outer wall of the connecting ring (64) is recessed with a clamping groove (641), and the first semicircular groove (611) and the second semicircular groove (621) can be embedded in the clamping groove (641).

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