Automatic lubricating device for ball mill

Abstract

This utility model discloses an automatic lubrication device for a ball mill, including a grinding cylinder. A drive device is installed at one end of the grinding cylinder, and a gear ring is fixedly connected to the outer wall of the grinding cylinder. A gear is installed on the output shaft of the drive device, and the gear meshes with the gear ring. The gear has an oil inlet channel inside, and several circumferentially distributed oil outlet holes are provided on the oil inlet channel. The oil outlet holes extend to the outer wall of the gear. A hollow rotating shaft is fixedly connected to the center of one side of the gear. When this utility model is used, the automatic lubrication device for the ball mill inputs lubricating oil to the rotary pipe joint through an oil supply pipe, and then enters the oil inlet channel inside the gear through the through hole inside the hollow rotating shaft. Finally, it flows out from the oil outlet hole on the outer wall of the gear. When the lubricating oil flows out through the outer wall of the gear, it can mesh with the gear ring during operation, thus lubricating both the gear and the gear ring.

Description

Technical Field

[0001] This utility model relates to the field of ball mill technology, specifically to an automatic lubrication device for ball mills. Background Technology

[0002] Ball mills are commonly used grinding equipment, widely applied in industries such as mineral processing, cement, and chemicals, for grinding various ores and other materials. They mainly achieve material crushing through the impact and friction of steel balls inside the cylinder. The ball mill lubrication system is an important part of ensuring its normal operation, mainly used to lubricate key parts such as bearings, gears, and supporting rotating components, reducing wear, lowering energy consumption, and improving equipment life and operating efficiency.

[0003] Existing ball mill lubrication systems generally suffer from uneven lubrication, frequent manual maintenance, and inability to provide continuous lubrication during operation. In particular, during the high-speed operation of the mill cylinder, the gear meshing parts are prone to dry friction, and it is difficult to add lubricating oil during operation, which leads to increased equipment wear and shortened service life. Therefore, there is an urgent need for a ball mill lubrication device with a compact structure that can achieve automatic and continuous lubrication during rotation. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] Therefore, one objective of this utility model is to provide an automatic lubrication device for ball mills. This automatic lubrication device delivers lubricating oil into the oil inlet channel inside the gear through an oil supply pipe, and the oil flows out from the oil outlet hole to lubricate the gear and gear ring, thereby achieving lubrication during the start-up and operation of the ball mill.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic lubrication device for a ball mill, comprising a grinding cylinder, a drive device installed at one end of the grinding cylinder, and a gear ring fixedly connected to the outer wall of the grinding cylinder; a gear is installed on the output shaft of the drive device, the gear meshing with the gear ring, an oil inlet channel is provided inside the gear, and a plurality of circumferentially equidistant oil outlet holes are provided on the oil inlet channel, the oil outlet holes extending to the outer wall of the gear, a hollow rotating shaft is fixedly connected to the center of one side of the gear, a through hole is provided inside the hollow rotating shaft, the through hole communicating with the oil inlet channel, and an oil supply pipe is connected to one end of the hollow rotating shaft through a rotary pipe joint.

[0007] Preferably, the end of the oil pipeline away from the hollow rotating shaft is connected to an oil pump.

[0008] Preferably, the drive device includes a gearbox, a motor is mounted on one side of the gearbox, and the front surface of the gearbox is connected to the gear via an output shaft.

[0009] Preferably, both ends of the grinding cylinder are provided with brackets, and both ends of the grinding cylinder are rotatably mounted on the brackets.

[0010] Preferably, the number of oil outlet holes is not less than five.

[0011] Preferably, a housing is provided on one side of the oil pump, and the oil inlet of the oil pump is connected to the interior of the housing through a pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this utility model delivers lubricating oil into the rotary pipe joint through the oil supply pipe, enters the oil inlet channel of the gear through the hollow rotating shaft through hole, and flows out from the oil outlet hole to lubricate the gear and gear ring, thereby realizing lubrication when the ball mill is started, improving safety, and eliminating the need for manual operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the automatic lubrication device for a ball mill according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the drive device in the automatic lubrication device for ball mills according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the oil pump, oil pipe and rotary pipe joint in the automatic lubrication device for ball mills according to an embodiment of the present utility model. Figure 4 This is a cross-sectional structural diagram of the gear in the automatic lubrication device for a ball mill according to an embodiment of the present invention.

[0014] In the diagram: 1. Grinding cylinder; 2. Support; 3. Gear; 4. Drive unit; 5. Gearbox; 6. Gear ring; 7. Housing; 8. Oil supply pipe; 9. Rotary pipe joint; 10. Hollow rotating shaft; 11. Oil pump; 12. Oil outlet; 13. Oil inlet channel; 14. Through hole; 15. Motor. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1 The present invention provides an automatic lubrication device for a ball mill, comprising: a grinding cylinder 1 and a drive device 4.

[0017] Among them, such as Figures 1-2As shown, a grinding cylinder 1 is provided, a drive device 4 is installed at one end of the grinding cylinder 1, a gear ring 6 is fixedly connected to the outer wall of the grinding cylinder 1, and a gear 3 is installed on the output shaft of the drive device 4. The gear 3 and the gear ring 6 mesh with each other.

[0018] Furthermore, the drive device 4 includes a gearbox 5, a motor 15 is mounted on one side of the gearbox 5, the front surface of the gearbox 5 is connected to the gear 3 through an output shaft, and brackets 2 are provided at both ends of the grinding cylinder 1, with both ends of the grinding cylinder 1 rotatably mounted on the brackets 2.

[0019] Both ends of the grinding cylinder 1 are located on the support 2, which serves to support the grinding cylinder 1. The drive device 4 starts the motor 15, and the rotating shaft of the motor 15 drives the gear inside the gearbox 5 to change speed. Finally, the output shaft of the gearbox 5 drives the gear 3 to mesh with the gear ring 6 to drive the grinding cylinder 1 to rotate.

[0020] In this embodiment, as Figures 1-4 As shown, the gear 3 has an oil inlet channel 13 inside, and several oil outlet holes 12 are circumferentially distributed on the oil inlet channel 13. The oil outlet holes 12 extend to the outer wall of the gear 3. A hollow rotating shaft 10 is fixedly connected to the center of one side of the gear 3. The hollow rotating shaft 10 has a through hole 14 inside, which is connected to the oil inlet channel 13. One end of the hollow rotating shaft 10 is connected to an oil supply pipe 8 through a rotary pipe joint 9.

[0021] The oil supply pipe 8 inputs lubricating oil to the rotary pipe joint 9, and then enters the oil inlet channel 13 inside the gear 3 through the through hole 14 inside the hollow rotating shaft 10. Finally, it flows out through the oil outlet hole 12 on the outer wall of the gear 3. When the lubricating oil flows out through the outer wall of the gear 3, it can mesh with the gear ring 6 in the running state, and lubricate both the gear 3 and the gear ring 6.

[0022] Furthermore, the end of the oil supply pipe 8 away from the rotary joint 9 is connected to an oil pump 11, which provides a power source to drive lubricating oil to be delivered along the oil supply pipe 8 to the rotary joint 9. The rotary joint 9 ensures stable oil supply between moving parts.

[0023] like Figure 2 As shown, a housing 7 is provided on one side of the oil pump 11. The oil inlet of the oil pump 11 is connected to the inside of the housing 7 through a pipe. The housing 7 can store lubricating oil, which can be directly drawn out and output by the oil pump 11 after it is started.

[0024] Specifically, there are no fewer than five oil outlet holes 12 to increase the lubrication coverage between gear 3 and gear ring 6 and avoid local dry friction caused by insufficient lubrication.

[0025] Based on the above technical solution, the working steps of this solution are summarized as follows: When this utility model is used, the automatic lubrication device of the ball mill inputs lubricating oil into the rotary pipe joint 9 through the oil supply pipe 8, and then enters the oil inlet channel 13 inside the gear 3 through the through hole 14 inside the hollow rotating shaft 10. Finally, it flows out through the oil outlet hole 12 on the outer wall of the gear 3. When the lubricating oil flows out through the outer wall of the gear 3, it can mesh with the gear ring 6 in the running state, and simultaneously lubricate the gear 3 and the gear ring 6. This device can meet the two lubrication modes of shutdown lubrication and running lubrication of the meshing parts of the ball mill gear, improves the safety of start-up lubrication, and eliminates the need for manual lubrication by the operator.

[0026] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic lubrication device for a ball mill, comprising a grinding cylinder (1), a drive device (4) being installed at one end of the grinding cylinder (1), and a gear ring (6) being fixedly connected to the outer wall of the grinding cylinder (1), characterized in that: The output shaft of the drive device (4) is equipped with a gear (3), which meshes with the gear ring (6). The gear (3) has an oil inlet channel (13) inside, and the oil inlet channel (13) has several circumferentially distributed oil outlet holes (12). The oil outlet holes (12) extend to the outer wall of the gear (3). A hollow rotating shaft (10) is fixedly connected to the center of one side of the gear (3). The hollow rotating shaft (10) has a through hole (14) inside, which is connected to the oil inlet channel (13). One end of the hollow rotating shaft (10) is connected to an oil supply pipe (8) through a rotary pipe joint (9).

2. The automatic lubricating device for ball mill according to claim 1, characterized in that: The oil pipeline (8) is connected to an oil pump (11) at the end away from the hollow rotating shaft (10).

3. The automatic lubricating device for ball mill according to claim 1, characterized in that: The drive device (4) includes a gearbox (5), a motor (15) is mounted on one side of the gearbox (5), and the front surface of the gearbox (5) is connected to the gear (3) through an output shaft.

4. The automatic lubricating device for a ball mill according to claim 1, characterized in that: Both ends of the grinding cylinder (1) are provided with brackets (2), and both ends of the grinding cylinder (1) are rotatably mounted on the brackets (2).

5. The automatic lubricating device for ball mill according to claim 1, characterized in that: The number of oil outlet holes (12) is no less than five.

6. The automatic lubricating device for ball mill according to claim 2, characterized in that: The oil pump (11) is provided with a housing (7) on one side, and the oil inlet of the oil pump (11) is connected to the interior of the housing (7) through a pipe.

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