Device for preventing rough rolling guide and guard bearing from being jammed
By installing cooling water pipes and sealing gaskets on the guide support arm, the problem of guide bearing jamming was solved, achieving efficient operation and extended lifespan of the guide, and reducing production costs.
Patent Information
- Application Number
- CN202423211613.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing technologies, guide bearings are prone to wear under high temperature and high load environments. Iron oxide scale residue enters the bearing, causing jamming, affecting the service life of the guide bearing, and making it impossible to guarantee efficient production.
Cooling water pipes are installed on the guide support arm, with the nozzles of the cooling water pipes aligned with both ends of the guide roller. Steps and sealing gaskets are provided on the inner side of both ends of the guide roller to promptly flush away iron oxide scale residue and cool down the bearing, preventing the residue from entering the bearing.
This extended the replacement cycle of the guide, improved production efficiency, reduced production costs, extended bearing life, and reduced bearing consumption.
Smart Images
Figure CN223916303U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to rough rolling guide and guard equipment technical field especially a device of preventing rough rolling guide and guard bearing block. BACKGROUND
[0002] At present, in the production line of steel plant, rough rolling all adopts short stress rolling mill of flat and vertical alternation, and guide and guard uses floor rotary guide and guard, and the guide and guard of vertical rolling mill import is rolling import guide and guard, and needs 30 minutes above each time to change.
[0003] After the billet passes through heating, there is more iron oxide scale on the surface, and the iron oxide scale is broken into powder in the rolling process, part of which is accumulated in the rolling channel, and part of which is attached to the surface of the rolled piece, when the subsequent rolled piece comes to be supported by the guide and guard roller, the iron oxide scale residue is easy to be taken to the gap between the two ends of the guide roller, after long time accumulation and penetration, part of the residue enters the bearing, increasing the bearing resistance. At the same time, in the production process, the guide and guard bearing is always in high temperature and high load environment, the bearing temperature rises easily, which causes the guide roller to be blocked and worn on one side, even the guide roller bursts, the rolled piece is scraped, etc., reducing the service life of the guide and guard, frequent replacement, unable to guarantee efficient production. SUMMARY
[0004] The utility model aims at providing a device of preventing rough rolling guide and guard bearing block, which can solve the problem that the guide roller bearing residue cannot be cleaned in time and cannot be cooled quickly.
[0005] In order to solve the above problems, the utility model adopts the technical scheme of: the device of preventing rough rolling guide and guard bearing block includes the guide roller rotatingly installed on the guide and guard supporting arm, the guide roller is provided with bearings at both ends, an F-shaped cooling water pipe is further installed on the guide and guard supporting arm, two side pipe nozzles of the cooling water pipe extending to the side are respectively opposite to the both end positions of the guide roller, a gap is respectively arranged between the both end heads of the guide roller and the protrusions of the guide and guard supporting arm, a step recessed inward is arranged on the inner side of the both end heads of the guide roller, and a sealing washer matching the shape of the end head and the step is installed on the both end heads of the guide roller, and the two side pipe nozzles are 15-20 degrees obliquely downward opposite to the both end heads of the guide roller.
[0006] In the technical scheme of the above device of preventing rough rolling guide and guard bearing block, the more specific technical scheme can be: the gap L between the end head of the guide roller and the protrusion of the guide and guard supporting arm is less than or equal to 3mm.
[0007] In some possible embodiments, the cooling water pipe includes a main pipe, the two side pipe nozzles are arranged on the same side of the main pipe, and a quick connector is arranged at the tail of the main pipe.
[0008] In some possible embodiments, the side pipe nozzle is a stainless steel pipe of 8mm in diameter, the main pipe is a stainless steel pipe of 12mm in diameter, and the side pipe nozzle is connected with the main pipe by welding.
[0009] Compared with the prior art, the utility model has the following beneficial effects:
[0010] 1. The F-shaped cooling water pipe is additionally arranged on the guide support arm, the two side pipe nozzles of the cooling water pipe are respectively arranged at the two end positions of the guide roller, the inner side of the two end heads of the guide roller is provided with a recessed step, the sealing gasket matched with the end head and the step is arranged on the two end heads of the guide roller, the surface of the sealing gasket of the guide roller can be cleaned by the side pipe nozzles of the cooling water pipe, and the high temperature of the rolled piece is removed, thereby prolonging the service life of the bearing.
[0011] 2. The gap is arranged between the two end heads of the guide roller and the protrusion of the guide support arm, the gap is small, and the large particle iron oxide skin on the surface of the rolled piece cannot fall off between the guide roller and the support arm, thereby preventing the guide roller from being blocked.
[0012] 3. The inner side of the two end heads of the guide roller is provided with a recessed step, and the sealing gasket is tightly matched with the recessed step, so that the internal bearing is isolated from the external harsh environment, the iron oxide skin residue is prevented from entering the internal bearing, and the bearing is prevented from being blocked by the iron oxide skin residue. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a structural schematic diagram of the utility model.
[0014] Figure 2 is a position diagram of the side pipe nozzle of the cooling water pipe and the guide roller.
[0015] Mark explanation in the figure:
[0016] Guide support arm 1, guide support arm protrusion 1-1, guide roller 2, cooling water pipe 3, side pipe nozzle 3-1, main pipe 3-2, quick connector 3-3, gap 4, step 5, sealing gasket 6. DETAILED DESCRIPTION
[0017] To make the above-mentioned objectives, features, and advantages of this utility model more readily understood, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model; however, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0018] In the description of this utility model, it should be understood that the terms "middle", "length", "width", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", "radial", "circumferential", etc., indicate the orientation or positional relationship given in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0019] like Figure 1 The device for preventing roughing guide bearing jamming, as shown, includes a guide roller 2 rotatably mounted on a guide support arm 1. Bearings are installed at both ends of the guide roller. An "F"-shaped cooling water pipe 3 is also installed on the guide support arm 1. The cooling water pipe 3 includes a main pipe 3-2, with two side nozzles 3-1 extending outwards on the same side of the main pipe. A quick connector 3-3 for connecting the roll cooling water pipe is located at the tail end of the main pipe. The two side nozzles 3-1 extending to the sides of the cooling water pipe 3 are respectively positioned opposite the two ends of the guide roller 2, and the two side nozzles are angled downwards at 15°-20° towards the position between the end of the guide roller and the support arm. The two ends of the guide roller 2 are separated from the protrusions 1-1 of the guide support arm. A gap 4 is provided, with a gap L≤3mm. This small gap prevents large iron oxide scale particles from falling from the surface of the rolled piece and causing obstruction between the guide roll and the support arm. When the roll cooling water is turned on, the F-type cooling water pipe works simultaneously, which can promptly remove residual iron oxide scale from the gaps on both sides of the guide roll and effectively reduce the bearing temperature, thus achieving a cooling effect. The inner side of both ends of the guide roll 2 is provided with an inwardly recessed step 5. Sealing gaskets 6 with shapes matching the ends and steps are installed at both ends of the guide roll 2. The nozzles on the side of the cooling water pipe can promptly wash away the iron oxide scale residue on the surface of the guide roll sealing gaskets and remove some of the high temperature from the rolled piece, thus extending the bearing life.
[0020] The side nozzle 3-1 is made of Ø8mm stainless steel pipe, and the main pipe 3-2 is made of Ø12mm stainless steel pipe. The side nozzle 3-1 is connected to the main pipe 3-2 by welding.
[0021] Based on the embodiment of the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the range of the utility model protection.
Claims
1. A device for preventing jamming of roughing mill guide bearings, comprising a guide roller rotatably mounted on a guide support arm, wherein bearings are installed at both ends of the guide roller, characterized in that: On the guide support arm, a "F" shaped cooling water pipe is also installed, the two side nozzles of which respectively face the two end positions of the guide roller; a gap is respectively arranged between the two end heads of the guide roller and the protrusion of the guide support arm; the inner side of the two end heads of the guide roller is provided with a circle of inwardly recessed steps, and a sealing washer with a shape matching the end head and the step is installed on the two end heads of the guide roller; the two side nozzles are inclined downward at an angle of 15°-20° and face the two end heads of the guide roller.
2. The device for preventing blocking of the roughing guide bearing according to claim 1, characterized in that: The gap L between the end head of the guide roller and the protrusion of the guide support arm is less than or equal to 3 mm.
3. The device for preventing blocking of the roughing guide bearing according to claim 1, characterized in that: The cooling water pipe comprises a main pipe, and the two side nozzles are arranged on the same side of the main pipe, and a quick connector is arranged at the tail of the main pipe.
4. The device for preventing blocking of the roughing guide bearing according to claim 3, characterized in that: The side nozzle is a stainless steel pipe with a diameter of 8 mm, the main pipe is a stainless steel pipe with a diameter of 12 mm, and the side nozzle is connected with the main pipe by welding.