A lubricating device for a semi-autogenous mill gear

Abstract

The utility model discloses a kind of lubricating devices for half self-grinding machine gear, including base and half self-grinding machine installed above it, including first shell, injection device, second shell, bull gear, pinion, oil receiving box, oil guide pipe, driving assembly and filter assembly;Bull gear is installed in one end of half self-grinding machine;Driving assembly is connected with pinion;Bull gear and pinion are engaged;First shell and second shell are respectively sleeved in the outside of bull gear and pinion;Injection device is installed at the junction of first shell and second shell;Oil receiving box is installed in the inside of base;The upper end of oil guide pipe is connected with first shell, and lower end is connected with oil receiving box;Filter assembly is connected with oil receiving box.The utility model's injection device is installed above bull gear and pinion engagement point, so that lubricating oil is injected to bull gear immediately after engaging and lubricating with pinion, waste oil is collected into oil receiving box by combining first shell, is filtered in filter assembly, is recycled, and reduce lubricating oil waste.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, specifically to a lubrication device for gears in a semi-autogenous grinding machine. Background Technology

[0002] In the grinding and flotation system of a mineral processing plant, the semi-autogenous mill is a key crushing device, and the reliable lubrication of the large and small gears in its transmission mechanism directly affects the equipment's operating efficiency and lifespan. Currently, this type of equipment commonly uses jet lubrication: lubricating oil is pumped to a jetting device installed on the upper end of the small gear, where it forms a mist or beam of oil with the assistance of compressed air, and is directionally sprayed onto the tooth surface of the large gear. As the large gear rotates, the lubricating oil is carried into the contact surface with the small gear in the meshing area, forming a lubricating film to reduce friction, wear, and heat dissipation.

[0003] However, existing lubrication methods have significant drawbacks in actual operation. Because the injection point is located at a fixed position before the large gear enters the meshing zone, the lubricating oil needs to rotate with the gear for one revolution to participate in meshing lubrication. During this process, some lubricating oil is thrown off the gear surface by the centrifugal force generated by the high-speed rotation of the large gear, causing oil to drip or splash, failing to effectively enter the meshing zone to provide lubrication. This results in lubricating oil waste, leading to poor lubrication of the gear surface, pitting, wear, and even tooth breakage. Furthermore, the splashed lubricating oil pollutes the equipment and the surrounding environment, increasing cleaning and maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a lubrication device for semi-autogenous grinding mill gears that provides precise and efficient lubrication, extends gear service life, effectively purifies and recovers lubricating oil, and reduces lubricating oil consumption. This device aims to solve the technical problems of existing lubrication methods, such as excessive oil loss due to centrifugal force caused by improper setting of lubricating oil injection points, poor tooth surface lubrication leading to pitting, wear and tooth breakage, as well as environmental pollution and increased maintenance costs caused by splashed oil.

[0005] To solve the above technical problems, the solution adopted by this utility model is as follows: A lubrication device for gears in a semi-autogenous grinding mill includes a base and a semi-autogenous grinding mill mounted thereon. The device comprises a first housing, a spraying device, a second housing, a large gear, a small gear, an oil receiving box, an oil guide pipe, a drive assembly, and a filter assembly. The large gear is mounted at one end of the semi-autogenous grinding mill. The drive assembly is fixedly mounted on the base, with its output end fixedly connected to the small gear. The large gear and the small gear mesh with each other. The first housing is fitted over the outside of the large gear. The second housing is fitted over the outside of the small gear. The first housing and the second housing are fixedly connected. The spraying device is fixedly mounted at the connection between the first housing and the second housing and is externally connected to an oil storage device. The oil receiving box is fixedly mounted inside the base. The upper end of the oil guide pipe is connected to the bottom end of the first housing, and the lower end is connected to the oil receiving box. One end of the filter assembly is connected to the oil receiving box, and the other end is externally connected to the oil storage device.

[0006] The lubricating oil in the oil storage device is pumped to the spraying device, which is installed at the connection between the first and second housings, above the meshing point of the large and small gears. The lubricating oil in the oil storage device is pumped to the spraying device to spray the large gear. After being sprayed onto the large gear, the lubricating oil immediately meshes with the small gear, allowing the lubricating oil to be used directly and efficiently for lubrication. This ensures that the gear pair is always in a good lubrication state and reduces the occurrence of lubricating oil dripping or splashing due to centrifugal force. Some of the splashed lubricating oil will splash onto the first housing, preventing the splashed lubricating oil from contaminating the equipment and the surrounding environment. The lubricating oil on the first housing slides down the inner wall of the first housing to the bottom and is collected in the oil collection box through the oil guide pipe at the bottom. After being collected in the oil collection box, it is sent to the filter assembly for filtration and then circulated back to the oil storage device to re-enter the lubrication cycle.

[0007] Furthermore, the drive assembly includes a drive motor, a mounting base, and a transmission shaft; the drive motor and the mounting base are fixedly mounted on the machine base and are located on opposite sides of the pinion; the output end of the drive motor is fixedly connected to one end of the transmission shaft; the other end of the transmission shaft passes through the pinion and is rotatably connected to the mounting base. The motor is powered by an external power source. When the motor is started, its output end drives the transmission shaft to rotate relative to the mounting base, which in turn drives the pinion to rotate. The pinion then drives the meshing large gear to rotate, thereby causing the semi-autogenous grinding cylinder to rotate and complete the grinding operation.

[0008] Furthermore, the oil receiving box is provided with an oil storage chamber and an oil return chamber from left to right; the bottom ends of the oil storage chamber and the oil return chamber are connected; the upper end of the oil guide pipe is connected to the bottom end of the first housing, and the lower end is connected to the oil storage chamber; the oil return chamber is connected to the filter assembly. Oil on the first housing and waste oil containing impurities after lubrication are collected through the oil guide pipe into the oil storage chamber of the oil receiving box for buffering, reducing the flow rate of the waste oil. The stabilized waste oil then flows into the oil return chamber through the connected bottom end, and is then fed into the filter assembly for filtration.

[0009] Furthermore, the filtration assembly includes an oil delivery pipe, a filter screen, and an oil filter; the filter screen is installed at the upper end of the oil storage chamber; the oil filter is fixedly installed inside the base and externally connected to an oil storage device; one end of the oil delivery pipe is connected to the oil return chamber, and the other end is connected to the oil filter.

[0010] Oil on the first outer casing and waste oil containing impurities after lubrication are collected through the oil guide pipe and filtered by the filter screen. After initial filtration, the waste oil flows into the oil storage chamber for buffering. The waste oil after initial filtration flows into the return oil chamber through the connected bottom end, and is transported to the oil filter machine for filtration and purification through the oil supply pipe. Then it flows back to the oil storage device and re-enters the lubrication cycle, effectively reducing lubricating oil waste.

[0011] The working principle of this utility model is as follows: The lubricating oil in the oil storage device is pumped to the spraying device located at the connection between the first and second outer shells, spraying it onto the large gear. After the lubricating oil is sprayed onto the large gear, the motor is started. The output end of the motor drives the transmission shaft to rotate relative to the mounting base, which in turn drives the small gear to rotate. The small gear drives the large gear that meshes with it to rotate, so that the large gear immediately meshes with the small gear, allowing the lubricating oil to be used directly and efficiently for lubrication. This ensures that the gear pair is always in a good lubrication state. The residual waste oil and some unlubricated lubricating oil will splash onto the first outer shell by centrifugal force, slide down the inner wall of the first outer shell to the bottom, and be collected in the oil receiving box through the oil guide pipe at the bottom. After preliminary filtration through the filter screen, it flows to the oil storage chamber for buffering. The smoothed waste oil flows into the return oil chamber through the connected bottom end, is transported to the oil filter for filtration and purification through the oil delivery pipe, and then flows back to the oil storage device to re-enter the lubrication circulation system.

[0012] The beneficial effects of this utility model are as follows: 1. The spraying device of this utility model is installed above the meshing point of the large gear and the small gear, so that the lubricating oil sprayed onto the large gear immediately meshes and lubricates the small gear, ensuring gear meshing accuracy, reducing vibration and wear, and extending equipment life. Combined with the first housing, the splashed oil is collected and guided into the oil receiving box for storage through the oil guide pipe, and then flows into the filter assembly for filtration and recycling. This greatly reduces the phenomenon of lubricating oil being thrown away and wasted due to the centrifugal force of gear rotation, and improves the reliability of equipment operation.

[0013] 2. This utility model forms a multi-stage filtration system through a filter screen and an oil filter mechanism, which realizes coarse filtration and fine filtration purification of waste oil, reducing the consumption of new oil and operating costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the large gear and the small gear of this utility model; Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the oil receiving box structure of this utility model; Figure 5 for Figure 4 Enlarged structural diagram at point B.

[0015] In the diagram: 1. Base; 2. Semi-autogenous mill; 3. First outer casing; 4. Injection device; 5. Second outer casing; 6. Large gear; 7. Small gear; 8. Drive motor; 9. Oil supply pipe; 10. Oil receiving box; 11. Mounting base; 12. Drive shaft; 13. Oil guide pipe; 14. Oil storage chamber; 15. Oil return chamber; 16. Filter screen; 17. Oil filter. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0018] The following is a detailed description of a lubrication device for semi-autogenous grinding mill gears according to the present invention, with reference to the accompanying drawings: Example

[0019] A lubrication device for gears in a semi-autogenous grinding mill includes a base 1 and a semi-autogenous grinding mill 2 mounted thereon. The device includes a first housing 3, a spraying device 4, a second housing 5, a large gear 6, a small gear 7, an oil receiving box 10, an oil guide pipe 13, a drive assembly, and a filter assembly. The large gear 6 is mounted at one end of the semi-autogenous grinding mill 2. The drive assembly is fixedly mounted on the base 1, and its output end is fixedly connected to the small gear 7. The large gear 6 and the small gear 7 mesh with each other. The first housing 3 is fitted onto the outside of the large gear 6. The second housing 5 is fitted onto the outside of the small gear 7. The first housing 3 and the second housing 5 are fixedly connected. The spraying device 4 is fixedly mounted at the connection between the first housing 3 and the second housing 5, and is externally connected to an oil storage device. The oil receiving box 10 is fixedly mounted inside the base 1. The upper end of the oil guide pipe 13 is connected to the bottom end of the first housing 3, and the lower end is connected to the oil receiving box 10. One end of the filter assembly is connected to the oil receiving box 10, and the other end is externally connected to the oil storage device.

[0020] The working principle of this embodiment is as follows: The spraying device 4 is installed at the connection between the first housing 3 and the second housing 5, that is, above the meshing point of the large gear 6 and the small gear 7. The lubricating oil in the oil storage device is pumped to the spraying device 4 to spray the large gear 6. After the lubricating oil is sprayed onto the large gear 6, it immediately meshes with the small gear 7, so that the lubricating oil can be used directly and efficiently for lubrication, ensuring that the gear pair is always in a good lubrication state, which can reduce the occurrence of lubricating oil dripping or splashing due to centrifugal force. Some of the splashed lubricating oil will splash onto the first housing 3, avoiding the splashed lubricating oil from contaminating the equipment and the surrounding environment. The lubricating oil on the first housing 3 slides down the inner wall of the first housing 3 to the bottom, and is collected in the oil collection box 10 through the oil guide pipe 13 at the bottom. After being collected by the oil collection box 10, it is sent to the filter assembly for filtration treatment, and then circulated back to the oil storage device to re-enter the lubrication cycle. Example

[0021] The difference from Embodiment 1 is that the drive assembly 2 includes a drive motor 8, a mounting base 11, and a transmission shaft 12; the drive motor 8 and the mounting base 11 are fixedly mounted on the base 1 and are located on both sides of the pinion 7; the output end of the drive motor 8 is fixedly connected to one end of the transmission shaft 12; the other end of the transmission shaft 12 passes through the pinion 7 and is rotatably connected to the mounting base 11; the oil receiving box 10 has an oil storage chamber 14 and an oil return chamber 15 from left to right; the oil storage chamber 14 and The bottom end of the oil return chamber 15 is connected; the upper end of the oil guide pipe 13 is connected to the bottom end of the first outer shell 3, and the lower end is connected to the oil storage chamber 14; the oil return chamber 15 is connected to the filter assembly; the filter assembly includes an oil delivery pipe 9, a filter screen 16, and an oil filter 17; the filter screen 16 is installed at the upper end of the oil storage chamber 14; the oil filter 17 is fixedly installed inside the base 1 and is externally connected to an oil storage device; one end of the oil delivery pipe 9 is connected to the oil return chamber 15, and the other end is connected to the oil filter 17.

[0022] When the drive motor 8 is started, the output end of the drive motor 8 drives the transmission shaft 12 to rotate relative to the mounting base 11, which in turn drives the small gear 7 to rotate. The small gear 7 drives the large gear 6 that meshes with it to rotate. The large gear 6 and the small gear 7 are lubricated by lubricating oil. The residual waste oil and some unlubricated lubricating oil will splash onto the first housing 3 by centrifugal force and slide down the inner wall of the first housing 3 to the bottom. It is collected in the oil collection box 10 through the oil guide pipe 13 at the bottom. In the process, it is first filtered by the filter screen 16 and then enters the oil storage chamber 14 for buffering to reduce the flow rate of waste oil. The smoothed waste oil flows into the return oil chamber 15 through the connected bottom end. The waste oil in the return oil chamber 15 is transported to the oil filter 17 for filtration and purification through the oil supply pipe 9, and then flows back to the oil storage device to re-enter the lubrication cycle, which effectively reduces the waste of lubricating oil.

[0023] The working principle of this embodiment is the same as that of Embodiment 1.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lubrication device for gears of a semi-autogenous mill, comprising a base (1) and a semi-autogenous mill (2) mounted thereon, characterized in that: It includes a first housing (3), an injection device (4), a second housing (5), a large gear (6), a small gear (7), an oil receiving box (10), an oil guide pipe (13), a drive assembly, and a filter assembly; The large gear (6) is installed at one end of the semi-autogenous mill (2); the drive assembly is fixedly installed on the base (1), and its output end is fixedly connected to the small gear (7); the large gear (6) and the small gear (7) mesh with each other; The first outer shell (3) is sleeved on the outside of the large gear (6); the second outer shell (5) is sleeved on the outside of the small gear (7); the first outer shell (3) and the second outer shell (5) are fixedly connected; the injection device (4) is fixedly installed at the connection between the first outer shell (3) and the second outer shell (5), and is connected to an external oil storage device. The oil receiving box (10) is fixedly installed inside the base (1); the upper end of the oil guide pipe (13) is connected to the bottom end of the first outer shell (3), and the lower end is connected to the oil receiving box (10); one end of the filter assembly is connected to the oil receiving box (10), and the other end is connected to an external oil storage device.

2. A lubricating device for a semi-autogenous mill gear as claimed in claim 1, characterised in that: The drive assembly includes a drive motor (8), a mounting base (11), and a transmission shaft (12); the drive motor (8) and the mounting base (11) are fixedly mounted on the base (1) and are located on both sides of the pinion (7); the output end of the drive motor (8) is fixedly connected to one end of the transmission shaft (12); the other end of the transmission shaft (12) passes through the pinion (7) and is rotatably connected to the mounting base (11).

3. A lubricating device for a semi-autogenous mill gear as claimed in claim 1, characterized in that: The oil receiving box (10) is provided with an oil storage chamber (14) and an oil return chamber (15) from left to right; the bottom ends of the oil storage chamber (14) and the oil return chamber (15) are connected; the upper end of the oil guide pipe (13) is connected to the bottom end of the first outer shell (3), and the lower end is connected to the oil storage chamber (14); the oil return chamber (15) is connected to the filter assembly.

4. A lubricating device for a semi-autogenous mill gear as claimed in claim 3, characterised in that: The filtration assembly includes an oil delivery pipe (9), a filter screen (16), and an oil filter (17); the filter screen (16) is installed at the upper end of the oil storage chamber (14); the oil filter (17) is fixedly installed inside the base (1) and connected to an external oil storage device; one end of the oil delivery pipe (9) is connected to the return oil chamber (15), and the other end is connected to the oil filter (17).

Images