CN215370624U

CN215370624U - Stable lubricating system of rolling mill bearing

Info

Publication number: CN215370624U
Application number: CN202121283687.6U
Authority: CN
Inventors: 刘康
Original assignee: Cangzhou China Railway Equipment Manufacturing Materials Co Ltd
Current assignee: Shandong Xinye Metallurgical Technology Co.,Ltd.
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-12-31
Anticipated expiration: 2031-06-09

Abstract

The utility model discloses a stable lubricating system of a rolling mill bearing, which comprises a grease filling machine and an oil film bearing, wherein the grease filling machine is connected with the oil film bearing through an oil outlet pipe and an oil return pipe; the spiral heat exchange runner inner chamber outside the lubricating oil runner is a cooling water runner, and the oil storage barrel can effectively cool the return oil, so that the lubricating oil in the bearing is prevented from being continuously heated to cause risks.

Description

Stable lubricating system of rolling mill bearing

Technical Field

The utility model relates to the field of steel rolling processing equipment, in particular to a stable lubricating system for a bearing of a steel rolling mill.

Background

The rolling mill bearing is an important part of a rolling mill, and needs good lubrication protection in the working process, the existing rolling mill mostly adopts an oil film bearing to be matched with an oil supply system, and in the practical application process, the temperature of lubricating oil in the bearing is often higher under the influence of the working environment, the working load and other reasons of the rolling mill, and as is known, the general ideal working temperature of the lubricating oil is 35-45 ℃, and the lubricating oil has the operation risk when the temperature exceeds 70 ℃, so that the stable lubrication system suitable for the rolling mill bearing is provided necessarily.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the background art, the present invention aims to provide a stable lubrication system for a rolling mill bearing, which effectively solves the problems in the background art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a stable lubricating system of a rolling mill bearing comprises a grease filling machine and an oil film bearing, wherein the grease filling machine is connected with the oil film bearing through an oil outlet pipe and an oil return pipe, the grease filling machine comprises an oil storage barrel, the oil storage barrel comprises a barrel body and a barrel cover screwed on the barrel body, a spiral heat exchange flow passage is arranged in the barrel body, the enclosed space of the spiral heat exchange flow passage is a primary cavity with openings at the upper side and the lower side, an oil return sleeve with an opening at the lower side is arranged at the upper side opening of the primary cavity, the oil return sleeve is communicated with the outlet side of the oil return pipe, a gap is arranged between the lower side opening of the primary cavity and the inner bottom surface of the barrel body, a secondary cavity is arranged between the outer side of the spiral heat exchange flow passage and the inner wall of the barrel body, a lubricating oil flow passage with a triangular cross section is also arranged in the spiral heat exchange flow passage in a matching manner, and the inlet side and the outlet side of the lubricating oil flow passage are respectively connected with an inlet pipe and an outlet pipe, the inlet pipe extends into the secondary cavity, an oil inlet is formed in the inlet pipe positioned in the secondary cavity, an oil outlet is formed in the bottom of the barrel body, a blocking block is arranged at the oil outlet, and the outlet side of the outlet pipe penetrates through the blocking block and extends into the oil outlet; the inner cavity of the spiral heat exchange flow passage outside the lubricating oil flow passage is a cooling water flow passage, and the inlet side and the outlet side of the cooling water flow passage are respectively connected with a cooling water inlet pipe and a cooling water outlet pipe.

Further, a barrel body heat insulation layer and a barrel cover heat insulation layer are respectively arranged on the barrel body and the barrel cover, a first annular convex edge and a second annular groove are arranged on the barrel body heat insulation layer, a first annular groove matched with the first annular convex edge is arranged on the barrel cover heat insulation layer, and a second annular convex edge matched with the second annular groove is further arranged on the barrel cover heat insulation layer.

Further, a skirt curtain is further arranged on the outer side of the barrel cover heat insulation layer, and the skirt curtain covers the seam between the barrel body heat insulation layer and the barrel cover heat insulation layer.

Furthermore, a plurality of horizontal heat conducting rods are further arranged on the spiral heat exchange flow channel in a penetrating mode, and two ends of each horizontal heat conducting rod are located in the primary cavity and the secondary cavity respectively.

Furthermore, the block is a conical block which is coaxial with the primary cavity.

The utility model has the following beneficial technical effects:

the oil storage barrel can effectively cool the return oil of the bearing, avoids the risk caused by the continuous temperature rise of the lubricating oil in the bearing, and is favorable for ensuring the stable operation of a rolling mill; the application is novel in design, convenient to use, and is suitable for being popularized and used.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an oil storage barrel according to an embodiment of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, the stable lubricating system for a rolling mill bearing according to this embodiment includes a grease filling machine 1 and an oil film bearing 2, the grease filling machine 1 is connected to the oil film bearing 2 through an oil outlet pipe 3 and an oil return pipe 4, the grease filling machine 1 includes an oil storage barrel, a pump head 6 driven by a motor 5 is disposed below the oil storage barrel, one end of the oil outlet pipe 3 is connected to the pump head 6, the oil storage barrel includes a barrel body 7 and a barrel cover 8 screwed on the barrel body 7, a spiral heat exchange flow channel 9 is disposed in the barrel body 7, the spiral heat exchange flow channel 9 is made of stainless steel, a surrounding space of the spiral heat exchange flow channel 9 is a primary cavity 10 with openings at upper and lower sides, other surfaces of the primary cavity 10 are closed, an oil return sleeve 11 with an opening at a lower side is disposed at an upper opening of the primary cavity 10, an inner cavity of the oil return sleeve 11 is communicated with the primary cavity 10, an inner cavity of the oil return sleeve 11 is further communicated with an outlet side of the oil return pipe 4, a gap is formed between the lower side opening of the primary cavity 10 and the inner side bottom surface of the barrel body 7, a secondary cavity 12 is formed between the outer side of the spiral heat exchange flow passage 9 and the inner wall of the barrel body 7, a lubricating oil flow passage 13 with a triangular cross section is further arranged in the spiral heat exchange flow passage 9 in a matched mode, the top of the lubricating oil flow passage 13 is not contacted with the inner side top surface of the spiral heat exchange flow passage 9, the inlet side and the outlet side of the lubricating oil flow passage 13 are respectively connected with an inlet pipe 14 and an outlet pipe 15, the inlet pipe 14 extends into the secondary cavity 12 and is provided with a plurality of strip-shaped oil inlets 16 on the inlet pipe 14 positioned in the secondary cavity 12, the bottom of the barrel body 7 is provided with an oil outlet 17, a blocking block 18 is arranged at the oil outlet 17, the outlet side of the outlet pipe 15 penetrates through the blocking block 18 and extends into the oil outlet 17, the blocking block 18 is a conical blocking block coaxially arranged with the primary cavity 10, and lubricating oil can be guided into the secondary cavity 12 under the action of the conical blocking block after flowing out of the primary cavity 10 from top to bottom; the inner cavity of the spiral heat exchange flow channel 9 outside the lubricating oil flow channel 13 is a cooling water flow channel 19, the inlet side and the outlet side of the cooling water flow channel 19 are respectively connected with a cooling water inlet pipe 20 and a cooling water outlet pipe 21, and the cooling water inlet pipe 20 and the cooling water outlet pipe 21 are connected with an industrial cooling tower.

A barrel body heat-insulating layer 22 and a barrel cover heat-insulating layer 23 are respectively arranged on the barrel body 7 and the barrel cover 8, the barrel body heat-insulating layer 22 and the barrel cover heat-insulating layer 23 are both ceramic fiber board layers, a first annular convex edge 24 and a second annular groove 25 are arranged on the barrel body heat-insulating layer 22, a first annular groove 26 matched with the first annular convex edge 24 is arranged on the barrel cover heat-insulating layer 23, a second annular convex edge 27 matched with the second annular groove 25 is also arranged on the barrel cover heat-insulating layer 23, a skirt curtain 28 is also arranged on the outer side of the barrel cover heat-insulating layer 23, the skirt curtain 28 covers the joint of the barrel body heat-insulating layer 22 and the barrel cover heat-insulating layer 23, the first annular convex edge 24 is matched with the first annular groove 26, the second annular convex edge 27 is matched with the second annular groove 25, and the skirt curtain 28 is applied, therefore, the heat convection at the joint of the barrel body heat-insulating layer 22 and the barrel cover heat-insulating layer 23 is effectively weakened, and the heat-insulating effect of the oil storage barrel is favorably ensured.

A plurality of horizontal heat conducting rods 29 are further arranged on the spiral heat exchange flow channel 9 in a penetrating mode, the horizontal heat conducting rods 29 are also made of stainless steel, two ends of each horizontal heat conducting rod 29 are located in the primary cavity 10 and the secondary cavity 12 respectively, and the horizontal heat conducting rods 29 can effectively enhance the heat exchange effect of lubricating oil and cooling water in a direct heat conduction mode.

The working principle of the embodiment is as follows:

the pump head 6 injects oil into the oil film bearing 2 at a certain speed, the lubricating oil reaches the oil return sleeve 11 through the oil return pipe 4 after being heated in the oil film bearing 2, then flows through the primary cavity 10 from top to bottom, then enters the secondary cavity 12, then enters the lubricating oil flow channel 13 through the oil inlet 16, finally flows into the oil outlet 17 through the outlet pipe 15 and enters the pump head 6 to be injected into the oil film bearing 2 again; in the process, the lubricating and oil changing process generates dividing wall heat exchange with the cooling water in the cooling water flow channel 19 in the flowing process of the lubricating oil in the primary cavity 10, the secondary cavity 12 and the lubricating oil flow channel 13, namely three-pass heat release of the lubricating oil is realized in a limited space, the cooling of the lubricating oil is particularly facilitated, the lubricating oil after being cooled is injected into the oil film bearing 2, the risk caused by continuous temperature rise of the lubricating oil in the oil film bearing 2 can be effectively avoided, and the stable operation of the rolling mill is favorably ensured.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A stable lubricating system of a rolling mill bearing is characterized by comprising a grease filling machine and an oil film bearing, wherein the grease filling machine is connected with the oil film bearing through an oil outlet pipe and an oil return pipe, the grease filling machine comprises an oil storage barrel, the oil storage barrel comprises a barrel body and a barrel cover screwed on the barrel body, a spiral heat exchange flow passage is arranged in the barrel body, a surrounding space of the spiral heat exchange flow passage is a primary cavity with openings at the upper side and the lower side, an oil return sleeve with an opening at the lower side is arranged at an opening at the upper side of the primary cavity, the oil return sleeve is communicated with an outlet side of the oil return pipe, a gap is formed between the opening at the lower side of the primary cavity and the inner bottom surface of the barrel body, a secondary cavity is formed between the outer side of the spiral heat exchange flow passage and the inner wall of the barrel body, a lubricating oil flow passage with a triangular cross section is further arranged in the spiral heat exchange flow passage in a matched manner, and the inlet side and the outlet side of the lubricating oil flow passage are respectively connected with an inlet pipe and an outlet pipe, the inlet pipe extends into the secondary cavity, an oil inlet is formed in the inlet pipe positioned in the secondary cavity, an oil outlet is formed in the bottom of the barrel body, a blocking block is arranged at the oil outlet, and the outlet side of the outlet pipe penetrates through the blocking block and extends into the oil outlet; the inner cavity of the spiral heat exchange flow passage outside the lubricating oil flow passage is a cooling water flow passage, and the inlet side and the outlet side of the cooling water flow passage are respectively connected with a cooling water inlet pipe and a cooling water outlet pipe.

2. The stable lubrication system for the bearings of the rolling mill as claimed in claim 1, wherein the barrel body and the barrel cover are respectively provided with a barrel body heat insulation layer and a barrel cover heat insulation layer, the barrel body heat insulation layer is provided with a first annular convex edge and a second annular groove, the barrel cover heat insulation layer is provided with a first annular groove matched with the first annular convex edge, and the barrel cover heat insulation layer is further provided with a second annular convex edge matched with the second annular groove.

3. The stable lubricating system for the bearings of the rolling mill as claimed in claim 2, wherein a skirt curtain is further arranged on the outer side of the barrel cover heat insulation layer, and the skirt curtain covers the seam between the barrel body heat insulation layer and the barrel cover heat insulation layer.

4. The stable lubrication system for the bearings of the rolling mill as claimed in claim 1, wherein a plurality of horizontal heat conducting rods are further arranged on the spiral heat exchange flow channel in a penetrating manner, and two ends of each horizontal heat conducting rod are respectively located in the primary cavity and the secondary cavity.

5. The system of claim 1, wherein said plug is a conical plug disposed coaxially with said primary chamber.