Laminar flow roller way oil throwing prevention device

Abstract

The utility model provides a laminar flow roller way oil throwing prevention device which comprises a laminar cooling roller way, a first bearing sealing assembly and a second bearing sealing assembly, the first bearing sealing assembly comprises a first bearing unit and two first sealing units, and the second bearing sealing assembly comprises a second bearing unit and two second sealing units. A first shaft head and a second shaft head are arranged at the two ends of the layer cooling roller bed respectively, each first sealing unit comprises a first shaft sleeve and a first lip-shaped sealing ring, the first bearing unit is provided with a first grease discharging hole, each second sealing unit comprises a second shaft sleeve and a second lip-shaped sealing ring, and the second bearing unit is provided with a second grease discharging hole. In this way, the lip-shaped sealing ring is used for sealing oil, in combination with the one-way sealing characteristic of the lip-shaped sealing ring, lubricating grease between the shaft sleeves cannot be thrown to the surface of the roller, redundant grease is discharged from the grease discharging hole, waste grease is collected through the grease basin below the grease discharging hole, and therefore the surface of the roller is protected against pollution, and the product quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to laminar flow roller way technical field especially a laminar flow roller way anti -oil flinging device. BACKGROUND

[0002] Hot rolling layer cold roller way is an important component on hot rolling production line, is located between the layer flow cooling area of the finishing mill exit and coiler, and its main function is to deliver the hot rolled strip from the finishing mill to the coiler and to cool the strip through the laminar flow cooling system during the delivery.

[0003] In high-speed operation, the roller bearing seat of the hot rolling layer cold roller way usually adds lubricating grease to play a lubricating effect, the lubricating grease is supplemented to lubricate the bearing from the grease supplementing opening, and the lubricating grease in the roller bearing seat cannot be completely sealed, part of the lubricating grease penetrates through the oil seal and the running gap and is flung out to contaminate the roller surface, causing the oil stains on the upper and lower surfaces of the slab passing through the roller to be pressed in, thereby affecting the product quality.

[0004] In view of this, it is necessary to provide a laminar flow roller way anti-oil flinging device to solve or at least alleviate the above-mentioned defects. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a laminar flow roller way anti-oil flinging device to solve the problem that the lubricating grease in the roller bearing seat of the prior art is easy to fling out and contaminate the roller surface.

[0006] To achieve the above-mentioned purpose, the utility model provides a laminar flow roller way anti-oil flinging device, which comprises a layer cold roller way and first bearing sealing assemblies and second bearing sealing assemblies respectively arranged at the axial two ends of the layer cold roller way, wherein,

[0007] The first bearing sealing assembly comprises a first bearing unit and two first sealing units arranged opposite in the axial direction, the second bearing sealing assembly comprises a second bearing unit and two second sealing units arranged opposite in the axial direction, and the two ends of the layer cold roller way are respectively provided with a first shaft head and a second shaft head, wherein,

[0008] Each first sealing unit comprises a first shaft sleeve and a first lip-shaped sealing ring, the first shaft head is rotatably connected in the first bearing unit, the first shaft sleeve is sleeved on the first shaft head, the first lip-shaped sealing ring abuts on the first shaft sleeve and is arranged between the first bearing unit and the first shaft sleeve, and the opening of the first lip-shaped sealing ring faces between the two first shaft sleeves, the first bearing unit is provided with a first grease discharge hole, and the first grease discharge hole is arranged below the bottom between the two first shaft sleeves;

[0009] Each of the second sealing units comprises a second shaft sleeve and a second lip-shaped sealing ring, the second shaft head is rotatably connected to the second bearing unit, the second shaft sleeve is sleeved on the second shaft head, the second lip-shaped sealing ring is abutted on the second shaft sleeve and arranged between the second bearing unit and the second shaft sleeve, and an opening of the second lip-shaped sealing ring faces between the two second shaft sleeves, and the second bearing unit is provided with a second grease discharge hole arranged below the bottom between the two second shaft sleeves.

[0010] Preferably, the first bearing unit comprises a first bearing seat and a first bearing, the first bearing is connected in the first bearing seat, the first shaft head is rotatably penetrated through the first bearing, the first lip-shaped sealing ring is arranged between the first bearing seat and the first shaft sleeve, and the first bearing seat is also provided with the first grease discharge hole.

[0011] Preferably, the second bearing unit comprises a second bearing seat, a second bearing and a cover, the second bearing is connected in the second bearing seat, the second shaft head is rotatably penetrated through the second bearing, the cover is connected between the second bearing seat and the layer cooling roller and sleeved outside the second shaft sleeve, the second lip-shaped sealing ring is arranged between the cover and the second shaft sleeve, and the cover is provided with the second grease discharge hole.

[0012] Preferably, the first bearing sealing assembly further comprises a first spacer sleeve, and the second bearing sealing assembly further comprises a second spacer sleeve; wherein,

[0013] The first spacer sleeve is sleeved on the first shaft head and abutted between the two first spacer sleeves;

[0014] The second spacer sleeve is sleeved on the second shaft head and abutted between the two second spacer sleeves.

[0015] Preferably, the first bearing sealing assembly further comprises a first baffle, and the second bearing sealing assembly further comprises a second baffle, and the first baffle and the second baffle are annular; wherein,

[0016] The first baffle is connected to the first bearing seat and abutted outside the first lip-shaped sealing ring close to the layer cooling roller;

[0017] The second baffle is connected to the cover and abutted outside the second lip-shaped sealing ring close to the layer cooling roller.

[0018] Preferably, the first grease discharge hole and the second grease discharge hole are U-shaped.

[0019] Preferably, the first baffle is connected to the first bearing seat by a plurality of internally hexagonal bolts arranged along the self circumferential direction; and the second baffle is connected to the transparent cover by a plurality of internally hexagonal bolts arranged along the self circumferential direction.

[0020] Preferably, the surfaces of the first shaft sleeve and the second shaft sleeve are provided with wear-resistant layers.

[0021] Preferably, the widths of the first grease discharge hole and the second grease discharge hole are 20mm-30mm.

[0022] Preferably, the number of the internally hexagonal bolts on the first baffle and the second baffle is four.

[0023] Compared with the prior art, the device has the following beneficial effects:

[0024] The device has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in these drawings without creative labor.

[0026] Figure 1 It is a cross-sectional schematic view of the application scene of the overall structure in an embodiment of the present application.

[0027] Figure 2 for Figure 1 a local enlarged view at A in the middle;

[0028] Figure 3 for Figure 1 a local enlarged view at B in the middle;

[0029] Figure 4 a perspective view of the first bearing seat in one embodiment of the present application;

[0030] Figure 5 a perspective view of the transparent cover in one embodiment of the present application.

[0031] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings.

[0032] Explanation of reference numerals:

[0033] 10, first bearing sealing assembly; 110, first bearing unit; 111, first bearing seat; 112, first bearing; 120, first sealing unit; 121, first shaft sleeve; 122, first lip-shaped sealing ring; 130, first grease discharge hole; 140, first spacer sleeve; 150, first baffle; 160, inner hexagonal bolt; 20, second bearing sealing assembly; 210, second bearing unit; 211, second bearing seat; 212, second bearing; 213, transparent cover; 220, second sealing unit; 221, second shaft sleeve; 222, second lip-shaped sealing ring; 230, second grease discharge hole; 240, second spacer sleeve; 250, second baffle; 30, layer cooling roller table; 310, first shaft head; 320, second shaft head. DETAILED DESCRIPTION

[0034] It should be understood that the specific embodiments described herein are merely exemplary and not intended to limit the present application.

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0038] Please refer to the accompanying drawings Figures 1-5 The present application provides a laminar flow roller bed anti-splashing oil device, which comprises a laminar cooling roller bed 30 and first and second bearing sealing assemblies 10 and 20 arranged at the axial ends of the laminar cooling roller bed 30. First of all, it should be noted that the axial direction in the present application refers to the axial direction of the laminar cooling roller bed 30. Unlike the grease in the roller bed bearing seat in the prior art, part of the grease can pass through the oil seal and the running gap and splash out, thereby polluting the surface of the roller, causing the oil stains on the upper and lower surfaces of the slab passing through the roller bed to be pressed in, and thereby affecting the product quality. The present application solves the above-mentioned defects in the prior art by providing a laminar flow roller bed anti-splashing oil device, which is as follows:

[0039] The first bearing sealing assembly 10 includes a first bearing unit 110 and two first sealing units 120 arranged axially opposite each other. The second bearing sealing assembly 20 includes a second bearing unit 210 and two second sealing units 220 arranged axially opposite each other. The two ends of the laminar flow roller 30 are respectively provided with a first shaft head 310 and a second shaft head 320. Each first sealing unit 120 includes a first bushing 121 and a first lip seal ring 122. The first shaft head 310 is rotatably connected to the first bearing unit 110. The first bushing 121 is sleeved on the first shaft head 310. The first lip seal ring 122 abuts against the first bushing 121 and is disposed between the first bearing unit 110 and the first bushing 121, with the opening of the first lip seal ring 122 facing the two first bushings. Between 121, the first bearing unit 110 has a first grease drain hole 130, which is located below the bottom between the two first bushings 121; each second sealing unit 220 includes a second bushing 221 and a second lip seal 222; the second shaft head 320 is rotatably connected to the second bearing unit 210; the second bushing 221 is fitted onto the second shaft head 320; the second lip seal 222 abuts against the second bushing 221 and is located between the second bearing unit 210 and the second bushing 221; and the opening of the second lip seal 222 faces between the two second bushings 221; the second bearing unit 210 has a second grease drain hole 230, which is located below the bottom between the two second bushings 221.

[0040] Specifically, the laminar flow roller conveyor anti-oil-slinging device in this application includes a laminar flow roller conveyor 30, a first bearing sealing assembly 10, and a second bearing sealing assembly 20. The first bearing sealing assembly 10 is an assembly for the bearing unit and sealing grease on the operating side, namely the first bearing unit 110 and the first sealing unit 120. Typically, the bearing unit on the operating side (the first bearing unit 110) includes a first bearing housing 111 and a first bearing 112 for mounting the first shaft head 310 of the laminar flow roller conveyor 30, which is different from the second bearing unit 210. The second bearing sealing assembly 20 is... The bearing unit and sealing grease assembly on the transmission side, namely the second bearing unit 210 and the second sealing unit 220, have different structures on the operating side and the transmission side. Therefore, the bearing unit (second bearing unit 210) on the transmission side also includes a second bearing seat 211, a second bearing 212, and a cover 213. The cover 213 is provided to seal the second shaft head 320 on the transmission side and prevent axial movement. There are two first sealing units 120 and two sealing units 220 on both sides. The first sealing unit 120 is described as an example below.

[0041] The first sealing unit 120 near the first bearing 112 is used for the excess lubricating grease to overflow, and the first sealing unit 120 near the layer cooling roller 30 is used for the excess lubricating grease to be thrown to the roller surface, so that the excess lubricating grease is controlled between the two first sealing units 120. In detail, each of the first sealing units 120 includes a first shaft sleeve 121 and a first lip-shaped sealing ring 122. The shaft sleeve is used for reducing the friction and wear, and the lip-shaped sealing ring has the characteristic of one-way sealing. The lip-shaped sealing ring has the special one-way sealing characteristic through the characteristic that the opening of the lip-shaped sealing ring faces. That is, the fluid can penetrate in the opening direction, but the fluid inside the opening cannot penetrate reversely, so as to ensure the sealing. Thus, the first lip-shaped sealing ring 122 near the layer cooling roller 30 (the roller body end) has the opening facing the first bearing seat 111 side, and the internal grease cannot be thrown to the roller surface through the first lip-shaped sealing ring 122 near the layer cooling roller 30 (the roller body end), which is mainly used for sealing the oil. The first lip-shaped sealing ring 122 near the first bearing 112 has the opening deviating from the first bearing 112, so that the lubricating grease can overflow to the roller body end when the lubricating grease of the bearing is excessive, the temperature rise caused by the excessive lubricating grease is avoided, and the new and old lubricating grease is alternated, so that the two first lip-shaped sealing rings 122 have the openings facing between the two first shaft sleeves 121 (the openings of the two first lip-shaped sealing rings face each other). Thus, the excess lubricating grease is controlled between the two first lip-shaped sealing rings 122. The first bearing seat 111 is further provided with a first grease discharge hole 130 at the position below the bottom between the two first shaft sleeves 121, and the excess lubricating grease is discharged through the first grease discharge hole 130. The overall structure design is compact, the necessity of the roller lubrication is ensured, the excess lubricating grease can be discharged in time, which is convenient, and the operation efficiency of the equipment is greatly improved.

[0042] It is worth mentioning that the working principle of the second sealing unit 220 is the same as that of the first sealing unit 120, and thus the detailed description is not repeated here. It should be noted that, due to the different structural characteristics of the second bearing seat 211 and the first bearing seat 111, the sealing feature is combined with the transparent cover 213. That is, the second lip-shaped sealing ring 222 is arranged between the transparent cover 213 and the second shaft sleeve 221, and the transparent cover 213 is provided with the second grease discharge hole 230. Similarly, the second lip-shaped sealing ring 222 near the second bearing 212 is used for the excess lubricating grease to overflow, and the second lip-shaped sealing ring 222 near the layer cooling roller 30 is used for sealing the oil to prevent the lubricating grease from being thrown to the roller surface. The specific principle can be referred to the above first sealing unit 120.

[0043] As a preferred embodiment of the utility model, the first bearing sealing assembly 10 further comprises a first spacer sleeve 140, and the second bearing sealing assembly 20 further comprises a second spacer sleeve 240; wherein the first spacer sleeve 140 is sleeved on the first shaft head 310 and abuts between two first spacer sleeves 140; the second spacer sleeve 240 is sleeved on the second shaft head 320 and abuts between two second spacer sleeves 240.

[0044] It is worth noting that the spacer sleeve can be used for axial positioning between the shaft sleeves, the first spacer sleeve 140 is applied between two first shaft sleeves 121, and the second spacer sleeve 240 is applied between two second shaft sleeves 221.

[0045] As a preferred embodiment of the utility model, the first bearing sealing assembly 10 further comprises a first baffle 150, and the second bearing sealing assembly 20 further comprises a second baffle 250, and the first baffle 150 and the second baffle 250 are annular; wherein the first baffle 150 is connected to the first bearing seat 111 and abuts outside the first lip-shaped sealing ring 122 close to the layer cooling roller way; the second baffle 250 is connected to the transparent cover 213 and abuts outside the second lip-shaped sealing ring 222 close to the layer cooling roller way.

[0046] It is worth noting that the baffle is used for fixing the lip-shaped sealing ring close to the end side of the roller body to avoid the lip-shaped sealing ring from falling off, the first baffle 150 is clamped by being connected to the first bearing seat 111 to clamp the first lip-shaped sealing ring 122, and the second baffle 250 is clamped by being connected to the transparent cover 213 to clamp the second lip-shaped sealing ring 222; preferably, both can adopt the mode of being connected by an inner hexagonal bolt 160, the inner hexagonal bolt 160 has the characteristics of compact structure and good anti-loosening performance, and is convenient to disassemble and assemble for later maintenance, and four inner hexagonal bolts 160 connected and spaced along the circumferential direction of each baffle can be arranged on each baffle to ensure stable connection.

[0047] Further, the first grease discharge hole 130 and the second grease discharge hole 230 are both in the shape of U.

[0048] It should be noted that the U-shaped form can match the circular interface of the first bearing seat 111 and the transparent cover 213, and is more suitable in structure.

[0049] Further, the surfaces of the first shaft sleeve 121 and the second shaft sleeve 221 both have wear-resistant layers.

[0050] It should be noted that the surface of the shaft sleeve can be quenched and tempered with wear-resistant material 42CrMo and the outer surface is nitrided to form a wear-resistant layer to strengthen the wear resistance of the shaft head.

[0051] Further, the width of the first grease drainage hole 130 and the second grease drainage hole 230 is 20-30mm.

[0052] It should be noted that the width of the grease drainage hole can be set according to the amount of oil and grease overflow to ensure sufficient oil drainage and prevent grease accumulation.

[0053] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation or direct or indirect application in other related technical fields based on the content of the present application specification and drawings are also included in the patent protection scope of the present application.

Claims

1. A laminar flow roller conveyor oil-slinging prevention device, characterized in that, It includes a laminar flow cooling roller conveyor and a first bearing seal assembly and a second bearing seal assembly respectively disposed at both axial ends of the laminar flow cooling roller conveyor; wherein, The first bearing sealing assembly includes a first bearing unit and two first sealing units arranged axially opposite each other. The second bearing sealing assembly includes a second bearing unit and two second sealing units arranged axially opposite each other. The two ends of the laminar flow roller are respectively provided with a first shaft head and a second shaft head. Each first sealing unit includes a first bushing and a first lip seal ring. The first shaft head is rotatably connected to the first bearing unit. The first bushing is sleeved on the first shaft head. The first lip seal ring abuts against the first bushing and is disposed between the first bearing unit and the first bushing. The opening of the first lip seal ring faces the space between the two first bushings. The first bearing unit is provided with a first grease discharge hole, which is disposed below the bottom between the two first bushings. Each of the second sealing units includes a second bushing and a second lip seal. The second shaft head is rotatably connected to the second bearing unit. The second bushing is sleeved on the second shaft head. The second lip seal abuts against the second bushing and is disposed between the second bearing unit and the second bushing. The opening of the second lip seal faces between the two second bushings. The second bearing unit has a second grease drain hole, which is disposed below the bottom between the two second bushings.

2. The laminar flow roller conveyor oil slinging prevention device according to claim 1, characterized in that, The first bearing unit includes a first bearing housing and a first bearing. The first bearing is connected in the first bearing housing. The first shaft head rotatably passes through the first bearing. The first lip seal is disposed between the first bearing housing and the first bushing. The first bearing housing also has the first grease drain hole.

3. The laminar flow roller conveyor oil-slinging prevention device according to claim 2, characterized in that, The second bearing unit includes a second bearing housing, a second bearing, and a through cover. The second bearing is connected in the second bearing housing. The second shaft head rotatably passes through the second bearing. The through cover is connected between the second bearing housing and the layered cooling roller table and is sleeved on the outside of the second bushing. The second lip seal is disposed between the through cover and the second bushing, and the through cover has a second grease discharge hole.

4. The laminar flow roller conveyor oil slinging prevention device according to claim 3, characterized in that, The first bearing sealing assembly further includes a first spacer, and the second bearing sealing assembly further includes a second spacer; wherein the first spacer is sleeved on the first shaft head and abuts between the two first spacers; The second spacer is fitted onto the second shaft head and abuts against the two second spacers.

5. The laminar flow roller conveyor oil slinging prevention device according to claim 3, characterized in that, The first bearing sealing assembly further includes a first baffle, and the second bearing sealing assembly further includes a second baffle, both the first baffle and the second baffle being annular; wherein... The first baffle is connected to the first bearing seat and abuts against the outside of the first lip seal ring near the layered cold roller table; The second baffle is connected to the transparent cover and abuts against the outside of the second lip seal ring near the layer cooling roller table.

6. The anti-oil-slinging device for laminar flow roller conveyors according to claim 1, characterized in that, Both the first and second grease-draining holes are U-shaped.

7. The laminar flow roller conveyor oil slinging prevention device according to claim 5, characterized in that, The first baffle is connected to the first bearing seat by a plurality of hexagonal bolts spaced apart along its circumference; the second baffle is connected to the cover by a plurality of hexagonal bolts spaced apart along its circumference.

8. The anti-oil-slinging device for laminar flow roller conveyors according to claim 1, characterized in that, Both the first bushing and the second bushing have a wear-resistant layer on their surfaces.

9. The anti-oil-slinging device for laminar flow roller conveyors according to claim 1, characterized in that, The width of the first and second grease-draining holes is 20mm to 30mm.

10. The anti-oil-slinging device for laminar flow roller conveyors according to claim 7, characterized in that, The number of internal hex bolts on both the first baffle and the second baffle is four.

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