Vertical mill separator bearing lubricating structure

Abstract

The utility model relates to the technical field of bearing lubrication, in particular to a vertical mill separator bearing lubrication structure which comprises a shaft bracket, an upper bearing installed on the shaft bracket and a lower bearing installed on the shaft bracket, and an oil injection device used for injecting oil into the lower bearing is installed on the shaft bracket. An oil injection assembly matched with the oil injection device is arranged on the lower bearing; the oil injection device comprises an oil injection pipe mounted on the shaft bracket, and one end of the oil injection pipe is connected with an external oil receiving station; the oil injection assembly comprises a lower bearing sleeve installed on the shaft bracket and an oil hole formed in the lower bearing sleeve, the lower bearing sleeve is further provided with an oil cavity, the lower bearing is installed in the lower bearing sleeve, the oil cavity can be used for supplying oil to the lower bearing, and the oil cavity is an annular oil cavity. In this way, oil can be supplied to the lower bearing, and the situation that the lower bearing cannot be lubricated is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing lubrication, in particular to a bearing lubrication structure for a vertical mill separator. Background Art

[0002] In the existing classifier of a vertical mill, the bearings are installed in a shaft frame, the shaft frame is installed on the classifier cylinder body, and the classifier rotor is supported by upper bearings and lower bearings installed in the shaft frame.

[0003] Due to the structural reasons of the classifier of the vertical mill, the existing grease filling structure for the classifier mainly fills grease onto the bearings through an oil injection hole and an oil injection pipe. The upper bearing of the classifier is close to the filling point, and generally there is no problem with this grease filling method.

[0004] However, when the lower bearing is far from the filling point and this filling method is adopted, the phenomenon that the lower bearing does not receive enough grease often occurs.

[0005] The reason for this problem is that the end of the oil injection pipe is relatively high from the bearing. During the dripping process of the grease, not all of it drips into the bearing balls as expected, but part of it adheres to the inner cylinder of the shaft frame under the action of the air flow and centrifugal force in the inner cylinder of the shaft frame, which not only causes waste of grease but also causes uneven lubrication of the bearing. Content of the Utility Model

[0006] To solve the above technical problems, the utility model provides a bearing lubrication structure for a vertical mill separator.

[0007] A bearing lubrication structure for a vertical mill separator provided by the utility model includes: a shaft frame, an upper bearing installed on the shaft frame, and a lower bearing installed on the shaft frame. An oil injection device for injecting oil into the lower bearing is installed on the shaft frame, and an oil injection component cooperating with the oil injection device is arranged on the lower bearing; the oil injection device includes an oil injection pipe installed on the shaft frame, and one end of the oil injection pipe is connected to an external oil receiving station; the oil injection component includes a lower bearing sleeve installed on the shaft frame, an oil hole opened on the lower bearing sleeve, and an oil cavity is also opened on the lower bearing sleeve. The lower bearing is installed in the lower bearing sleeve, and the oil cavity can supply oil to the lower bearing, and the oil cavity is an annular oil cavity.

[0008] Preferably, the number of the oil holes is at least one, and the number of the oil holes is three.

[0009] Preferably, a flange is fixedly connected to the oil injection pipe, and the flange is welded to the shaft frame.

[0010] Compared with the related technologies, a vertical mill separator bearing lubrication structure provided by the present utility model has the following beneficial effects: Through the cooperation of the oil injection device on the shaft bracket and the oil injection assembly, the lower bearing can be supplied with oil, avoiding the situation where the lower bearing is not lubricated. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a cross-sectional view of the present utility model;

[0012] Figure 2 is a cross-sectional view of the shaft bracket structure of the present utility model;

[0013] Figure 3 is a cross-sectional view of the lower bearing sleeve structure of the present utility model.

[0014] Reference numerals in the drawings: 1, shaft bracket; 2, oil injection pipe; 3, lower bearing; 4, lower bearing sleeve; 5, oil cavity; 6, oil hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0016] The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0017] Please refer to Figures 1 to 3 , a vertical mill separator bearing lubrication structure provided by an embodiment of the present utility model, includes: a shaft bracket 1, an upper bearing installed on the shaft bracket 1, and a lower bearing 3 installed on the shaft bracket 1. An oil injection device for injecting oil into the lower bearing 3 is installed on the shaft bracket 1, and an oil injection assembly cooperating with the oil injection device is provided on the lower bearing 3; the oil injection device includes an oil injection pipe 2 installed on the shaft bracket 1, and one end of the oil injection pipe 2 is connected to an external oil receiving station; the oil injection assembly includes a lower bearing sleeve 4 installed on the shaft bracket 1, an oil hole 6 opened on the lower bearing sleeve 4, and an oil cavity 5 is also opened on the lower bearing sleeve 4. The lower bearing 3 is installed in the lower bearing sleeve 4, and the oil cavity 5 can supply oil to the lower bearing 3.

[0018] In this embodiment, the oil injection pipe 2 on the shaft bracket 1 can effectively transport the external lubricating oil into the oil injection assembly. At the same time, the connection end of the oil injection pipe 2 and the oil receiving station is a threaded interface, and this method can also be used for manual lubrication. The oil injection assembly can add oil to the lower bearing sleeve 4, and the lubricating oil will be added through the oil hole 6 and the oil cavity 5, and the oil cavity 5 will lubricate the lower bearing 3 installed in the lower bearing sleeve 4.

[0019] The number of oil holes 6 is at least one, and the number of oil holes 6 is three.

[0020] In this embodiment, through the design of multiple oil holes 6, the lower bearing sleeve 4 can be refueled simultaneously, so that the oil chamber 5 can be refueled quickly, and the oil chamber 5 can be filled up faster. The lubricating oil in the oil chamber 5 can lubricate the lower bearing 3 faster.

[0021] A flange is fixedly connected to the oil injection pipe 2, and the flange is welded to the shaft frame 1.

[0022] In this embodiment, the oil injection pipe 2 can be effectively protected, avoiding wear and damage of the oil injection pipe 2 due to exposure to high-speed air flow. The welding and fixing method can fix it more stably.

[0023] The oil chamber 5 is an annular oil chamber.

[0024] In this embodiment, the setting of the annular oil chamber can store a part of lubricating oil inside and can also realize multi-hole simultaneous oil injection.

[0025] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A lubrication structure for a vertical mill separator bearing, comprising: Axle support (1), an upper bearing mounted on the axle support (1), and a lower bearing (3) mounted on the axle support (1), characterized in that an oil injection device for injecting oil into the lower bearing (3) is mounted on the axle support (1), and an oil injection assembly cooperating with the oil injection device is provided on the lower bearing (3); The oil injection device includes an oil injection pipe (2) mounted on the axle support (1), and one end of the oil injection pipe (2) is connected to an external oil receiving station; The oil injection assembly includes a lower bearing sleeve (4) mounted on the axle support (1) and an oil hole (6) formed in the lower bearing sleeve (4). An oil cavity (5) is also formed in the lower bearing sleeve (4). The lower bearing (3) is mounted in the lower bearing sleeve (4), and the oil cavity (5) can supply oil to the lower bearing (3).

2. The lubrication structure of the roller press separator bearing according to claim 1, characterized in that, The number of the oil holes (6) is at least one, and the number of the oil holes (6) is three.

3. The lubrication structure of the roller press separator bearing according to claim 1, characterized in that A flange is fixedly connected to the oil injection pipe (2), and the flange is welded to the axle support (1).

4. A vertical mill separator bearing lubrication structure according to claim 1, characterized in that, The oil cavity (5) is an annular oil cavity.

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