Gypsum board mill bearing double-cooling device
Through the double cooling device of gypsum board grinding bearings, the circulating flow of lubricating oil and cold air injection are used to solve the problems of high temperature and lubricating oil pollution, and the stable operation of the bearing and efficient cooling of the equipment are achieved.
Patent Information
- Application Number
- CN202422508842.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-10-17
AI Technical Summary
During the grinding process of gypsum board, the bearings are subjected to high temperature due to high pressure and high speed, and lubricating oil contaminates the gypsum powder, affecting the stability of the equipment.
A double cooling device for grinding bearings of gypsum board is designed to cool down using lubricating oil circulation flow, and to maintain positive pressure through the injected cold air into the oil collection room, combined with the airflow cooling device to prevent lubricating oil pollution and gypsum powder from entering.
It realizes stable operation of bearings, reduces temperature, prevents lubricant pollution, and maintains stable performance of the equipment.
Smart Images
Figure CN223062954U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high - voltage bearing cooling, in particular to a double - cooling device for a gypsum board grinding bearing. Background Technique
[0002] Gypsum is a widely used industrial building material. In the gypsum powder grinding production line, the essential equipment is the ultrafine powder grinding machine. After large - sized gypsum is crushed, it enters the ultrafine powder grinding machine. By the acting force of the grinding ring and the grinding roller, qualified fine powder is made. The grinding roller is assembled through bearings. During the powder grinding process, the bearings will bear high pressure and high speed.
[0003] When the powder grinding device is working, it rotates at a high speed, and the bearings continuously maintain high pressure and high speed. High temperature is likely to be caused inside the bearings. In order to reduce the friction between the inner and outer rings of the bearings, lubricating oil is usually applied inside. During the operation process, fine powder will enter the bearings, and the lubricating oil will also contaminate the gypsum powder, resulting in unstable operation. Keeping the gypsum powder uncontaminated and efficiently cooling the bearings to maintain the stable operation of the bearings is the technical key. Therefore, a double - cooling device for the bearings of a gypsum board grinder is proposed. Content of the Utility Model
[0004] The purpose of the utility model is to provide a double - cooling device for a gypsum board grinding bearing to solve the problems raised in the above - mentioned background technique.
[0005] To achieve the above - mentioned purpose, the utility model provides the following technical solutions:
[0006] A double - cooling device for a gypsum board grinding bearing includes an outer ring and an inner ring, which slide relative to each other. An oil inlet is arranged on the outer ring, and oil collecting chambers are respectively installed on the outer sides of both ends of the outer ring. The oil collecting chambers are rotatably connected to the inner ring. The inside of the oil collecting chamber is hollow, and an oil outlet is arranged at the bottom.
[0007] As a further scheme of the utility model: an oil guiding groove is arranged inside the outer ring, and the oil guiding groove can store lubricating oil.
[0008] As a further scheme of the utility model: a sealing disc is arranged on the outer side of the inner ring. The sealing disc is located inside the oil collecting chamber, near the connection between the inner ring and the oil collecting chamber.
[0009] As a further scheme of the utility model: the oil collecting chamber is equipped with a hoop, and the hoop fixes the oil collecting chamber and the outer ring to form a seal.
[0010] As a further scheme of the utility model: an air hole is arranged at the top of the oil collecting chamber. During the installation of the bearing, the air hole keeps upward, and the oil outlet keeps downward.
[0011] As a further solution of the present utility model: The air holes are connected to the air flow cooling device through air pressure pipelines, and the gas source transports gas to the air flow cooling device through an air pump.
[0012] As a further solution of the present utility model: A straight-through pipeline parallel to the air flow cooling device is connected to the air pressure pipeline, and check valves to prevent backflow are provided at the output ends of both the air flow cooling device and the straight-through pipeline.
[0013] As a further solution of the present utility model: The oil outlet is communicated with the oil cooling device through an oil return pipeline, and the oil cooling device is communicated with the oil inlet through an oil inlet pipeline.
[0014] Compared with the prior art, the beneficial effects of the present utility model are:
[0015] For this double-cooling device for the bearing of the gypsum board grinder, a hollow is made inside the bearing cavity, and lubricating oil is used as the cooling liquid for circulating flow to cool down, and cold air is injected into the oil collecting chamber for cooling and maintaining positive pressure. The double-cooling mechanism is used for cooling to achieve the stable performance of the equipment and prevent the entry of gypsum powder and the pollution of lubricating oil. Description of the Drawings
[0016] Figure 1 It is a schematic structural diagram of a double-cooling device for the bearing of a gypsum board grinder;
[0017] Figure 2 It is a main sectional view of the structure of a double-cooling device for the bearing of a gypsum board grinder;
[0018] Figure 3 It is an exploded view of the structure of a double-cooling device for the bearing of a gypsum board grinder;
[0019] Figure 4 It is a schematic diagram of the double-cooling connection of a double-cooling device for the bearing of a gypsum board grinder.
[0020] In the figure: 1, outer ring; 2, inner ring; 3, oil collecting chamber; 4, hoop; 5, oil guiding groove; 6, sealing disc; 7, oil outlet; 8, oil inlet; 9, air hole; 10, oil return pipeline; 11, oil inlet pipeline; 12, air pump; 13, air pressure pipeline; 14, check valve; 15, straight-through pipeline. Detailed Embodiment
[0021] Please refer to Figures 1 to 4, in the embodiment of the present utility model, a double-cooling device for a gypsum board grinding bearing includes an outer ring 1 and an inner ring 2. The outer ring 1 and the inner ring 2 slide relative to each other. An oil inlet 8 is provided on the outer ring 1. Oil collecting chambers 3 are respectively installed on the outer sides of both ends of the outer ring 1. The oil collecting chambers 3 are rotatably connected to the inner ring 2. The inside of the oil collecting chamber 3 is hollow, and an oil outlet 7 is provided at the bottom. The outer ring 1 and the inner ring 2 are the inner and outer rings of the bearing. The rotation mode between the outer ring 1 and the inner ring 2 can be sliding or roller type, without limitation. The lubricating oil is also a cooling medium. The lubricating oil enters through the oil inlet 8 in a circulating manner, passes through the rotation space between the outer ring 1 and the inner ring 2, and then converges in the oil collecting chamber 3. The oil collecting chamber 3 serves to collect the lubricating oil. The lubricating oil overflowing in the rotation space will be collected in the oil collecting chamber 3 and output through the oil outlet 7 at the bottom of the oil collecting chamber 3 for recycling after cooling. It not only plays a lubricating role but also can take away the heat of the bearing, reduce the bearing temperature, and maintain the stability of the bearing.
[0022] In a preferred embodiment, an oil guiding groove 5 is provided inside the outer ring 1. The oil guiding groove 5 can store the lubricating oil. The design pattern shape of the oil guiding groove 5 can be diversified and set according to actual needs. The oil guiding groove 5 can maintain the lubrication of the friction part during the low-speed circulation of the lubricating oil, reduce the friction coefficient, and reduce wear.
[0023] In a preferred embodiment, a sealing disc 6 is provided on the outer side of the inner ring 2. The sealing disc 6 is located inside the oil collecting chamber 3, near the connection between the inner ring 2 and the oil collecting chamber 3. During the rotation of the inner ring 2, a centrifugal force will be generated on the lubricating oil. To prevent the centrifugal force and the oil pressure injection of the lubricating oil from causing the lubricating oil to leak from the connection between the inner ring 2 and the oil collecting chamber 3 and pollute the gypsum powder, the sealing disc 6 is installed to block it. And the sealing disc 6 will rotate together with the inner ring 2 to generate a centrifugal force to prevent the lubricating oil from leaking. Under normal circumstances, the liquid level height of the lubricating oil in the oil collecting chamber 3 is lower than the sealing disc 6.
[0024] In a preferred embodiment, the oil collecting chamber 3 is equipped with a hoop 4. The hoop 4 fixes the oil collecting chamber 3 and the outer ring 1 to form a seal. The oil collecting chamber 3 and the outer ring 1 are detachable. Its seal not only needs to seal the lubricating oil but also needs to seal the gas.
[0025] In a preferred embodiment, an air hole 9 is provided at the top of the oil collecting chamber 3. During the installation of the bearing, the air hole 9 is kept upward and the oil outlet 7 is installed downward. The air hole 9 is connected to an air flow cooling device through an air pressure pipeline 13. The gas source delivers gas to the air flow cooling device through an air pump 12. Injecting air pressure into the oil collecting chamber 3 can keep the inside of the oil collecting chamber 3 at a positive pressure, prevent external gas from entering the inside along with the gypsum powder, accelerate the wear of the bearing and affect the purity of the lubricating oil.
[0026] In a preferred embodiment, a straight pipeline 15 connected in parallel with the air flow cooling device is communicated with the air pressure pipeline 13. Check valves 14 for preventing backflow are provided at the output ends of the air flow cooling device and the straight pipeline 15. The cooling method can adopt two methods: air cooling and lubricating oil cooling. For air cooling, it is cooled by the air flow cooling device and then enters the bearing and is discharged from the oil inlet 8 and the gap between the oil collecting chamber 3 and the outer ring 1. During the lubricating oil cooling process, the air flow cooling device for air cooling does not work. By inventing and switching the air pipeline, the air pipeline is sent into the air pressure pipeline 13 through the straight pipeline 15.
[0027] In a preferred embodiment, the oil outlet 7 is communicated with the oil cooling device through an oil return pipeline 10, and the oil cooling device is communicated with the oil inlet 8 through an oil inlet pipeline 11. An exhaust pipeline can be provided on the oil inlet pipeline 11, and a valve is installed on the exhaust pipeline. When starting the air cooling process, the pipeline is opened for exhaust.
[0028] It should be noted that the above embodiments all belong to the same inventive concept of the utility model. The descriptions of the embodiments have their own emphases. For the parts not described in detail in individual embodiments, reference can be made to the descriptions in other embodiments.
[0029] The above embodiments only represent the implementation modes of the present utility model. The descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.
Claims
1. A double cooling device for a gypsum board grinding bearing, comprising an outer ring (1) and an inner ring (2), the outer ring (1) and the inner ring (2) sliding relative to each other, characterized in that, An oil inlet (8) is provided on the outer ring (1). Oil collecting chambers (3) are respectively installed on the outer sides of both ends of the outer ring (1). The oil collecting chambers (3) are rotatably connected to the inner ring (2). The interior of the oil collecting chamber (3) is hollow, and an oil outlet (7) is provided at the bottom.
2. The double-cooling device for the bearing of a gypsum board grinder according to claim 1, characterized in that, An oil guiding groove (5) is provided inside the outer ring (1), and the oil guiding groove (5) can store lubricating oil.
3. The double cooling device for the bearing of a gypsum board grinder according to claim 1, wherein, A sealing disc (6) is provided on the outer side of the inner ring (2). The sealing disc (6) is located inside the oil collecting chamber (3), near the connection between the inner ring (2) and the oil collecting chamber (3).
4. A double-cooling device for a gypsum board grinding bearing according to claim 1, characterized in that, The oil collecting chamber (3) is equipped with a hoop (4), and the hoop (4) fixes the oil collecting chamber (3) and the outer ring (1) to each other to form a seal.
5. A double cooling device for a bearing of a gypsum board grinder according to claim 1, characterized in that, An air hole (9) is provided at the top of the oil collecting chamber (3). During the installation process of the bearing, the air hole (9) remains upward, and the oil outlet (7) is installed downward.
6. The double cooling device for the bearing of a gypsum board grinder according to claim 5, characterized in that The air hole (9) is connected to an air flow cooling device through an air pressure pipeline (13), and the gas source delivers gas to the air flow cooling device through an air pump (12).
7. A double cooling device for a gypsum board grinding bearing according to claim 6, characterized in that, A straight pipeline (15) parallel to the air flow cooling device is communicated on the air pressure pipeline (13). Check valves (14) to prevent backflow are provided at the output ends of both the air flow cooling device and the straight pipeline (15).
8. A double cooling device for a gypsum board grinding bearing according to any one of claims 1-7, characterized in that, The oil outlet (7) is communicated with an oil cooling device through an oil return pipeline (10), and the oil cooling device is communicated with the oil inlet (8) through an oil inlet pipeline (11).