Self-lubricating composite bearing

Abstract

The utility model provides a self-lubricating composite bearing and belongs to the technical field of bearings. Comprising a bearing seat, a bearing bush mechanism is arranged in the middle of the bearing seat, a shaft neck is inserted into the bearing bush mechanism in a penetrating mode, the bearing bush mechanism comprises two semi-annular bearing bush base bodies, fixing tiles are detachably installed on the outer sides of the bearing bush base bodies, and a plurality of graphite columns are vertically installed on the inner walls of the fixing tiles; and lubricating holes for embedding the graphite columns are correspondingly formed in the bearing bush base body. A mounting groove is formed in the middle of the outer side of the bearing bush base body, and the fixing bush is embedded into the mounting groove. The lubricating agent is convenient to replace and supplement after being used up, the whole bearing cannot be scrapped, later maintenance is facilitated, resource waste is reduced, and the overall using effect is good.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a self-lubricating composite bearing. Background Technology

[0002] Sliding bearings are critical components widely used in mechanical equipment. Their main function is to support rotating shafts and reduce friction. They are widely used in heavy machinery, high-speed rotating equipment, and extreme operating conditions (such as high-temperature and highly corrosive environments). Sliding bearings typically consist of a bearing shell, a bearing housing, and a lubrication system.

[0003] Currently, existing self-lubricating sliding bearings generally use solid lubricants such as graphite or molybdenum disulfide embedded in a metal or polymer matrix. The lubricant is released slowly during friction to form a lubricating film, reducing wear. However, in actual use, the lubricant solidifies with the matrix, and once depleted, it cannot be replenished, leading to the complete failure of the bearing, resulting in high maintenance costs and wasted resources.

[0004] Therefore, this application provides a self-lubricating composite bearing to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a self-lubricating composite bearing to solve the problem in the prior art of self-lubricating bearings where the lubricant is solidified with the matrix and cannot be replenished after it is exhausted, resulting in the overall scrapping of the bearing, high maintenance costs and waste of resources.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A self-lubricating composite bearing includes a bearing housing, a bearing bush mechanism disposed in the middle of the bearing housing, a journal inserted in the bearing bush mechanism, the bearing bush mechanism including two semi-annular bearing bush bases, a fixing bush detachably installed on the outer side of the bearing bush base, a plurality of graphite pillars vertically installed on the inner wall of the fixing bush, and a lubrication hole for embedding the graphite pillars is correspondingly opened on the bearing bush base.

[0008] Optionally, an installation groove is provided in the middle of the outer side of the bearing base, and the fixing bearing is embedded in the installation groove.

[0009] Optionally, a fixing screw hole is provided in the mounting groove, and a fastening bolt is fitted to the fixing tile. The fastening bolt passes through the fixing tile and is threadedly inserted into the fixing screw hole for fixation.

[0010] Optionally, the fixing tile has a receiving groove for the bolt cap of the fastening bolt to be fully inserted.

[0011] Optionally, a plurality of fixing pins are fixed on the inner wall of the fixing tile, and the graphite column is inserted and fixed to the fixing pins.

[0012] Optionally, the length of the fixing pin is not longer than the depth of the lubrication hole.

[0013] Optionally, the fixing pin is a stainless steel structure with a diameter of not less than 3mm, and the root of the fixing pin is designed with a transition rounded corner.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects:

[0015] In the above solution, thanks to the detachable fixing pad and the plug-in graphite column, when the graphite column is exhausted, only the fixing pad needs to be removed to replace the graphite column, rather than the whole bearing. This greatly reduces maintenance costs and material waste, and is especially suitable for the long-term operation and maintenance needs of large heavy-duty equipment.

[0016] In the above scheme, thanks to the setting of the fixing pin and the lubrication hole to install the graphite column, and the bidirectional limiting formed by the inner side of the journal and the outer side of the fixing pad, the lubricant can be accurately released to the friction interface, which can avoid the problem of local dry friction caused by uneven distribution of lubricant in the traditional sintering process to a certain extent.

[0017] In summary, the lubricant in this device is easy to replace and replenish after it is depleted, without ruining the entire bearing. This facilitates later maintenance, reduces resource waste, and results in good overall performance. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the bearing mechanism;

[0021] Figure 3 This is a schematic diagram of the structure of the bearing substrate and the fixed bearing.

[0022] Figure 4 for Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0023] [Figure Labels]

[0024] 1. Bearing housing; 2. Bearing bush mechanism; 201. Bearing bush base; 202. Fixed bearing; 203. Graphite column; 204. Fixing pin; 205. Lubrication hole; 206. Mounting groove; 207. Fixing screw hole; 208. Receiving groove; 209. Fastening bolt; 3. Journal.

[0025] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0026] The self-lubricating composite bearing provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0027] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0028] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0029] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0030] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of this utility model provides a self-lubricating composite bearing, including a bearing housing 1. A bearing bush mechanism 2 is provided in the middle of the bearing housing 1, and a journal 3 is inserted inside the bearing bush mechanism 2. The bearing bush mechanism 2 includes two semi-annular bearing bush bases 201. A fixing bush 202 is detachably installed on the outer side of the bearing bush base 201. A plurality of graphite pillars 203 are vertically installed on the inner wall of the fixing bush 202, and lubrication holes 205 are correspondingly opened on the bearing bush base 201 for the graphite pillars 203 to be inserted.

[0032] Specifically, a plurality of fixing pins 204 are fixed on the inner wall of the fixing plate 202, and the graphite column 203 is inserted and fixed to the fixing pins 204. In this embodiment, the length of the fixing pin 204 is not longer than the depth of the lubrication hole 205, and the fixing pin 204 is a stainless steel structure with a diameter of not less than 3mm to avoid potential problems such as bending due to journal eccentric load or high-frequency vibration. The root of the fixing pin 204 is designed with a rounded corner to reduce stress concentration.

[0033] Cooperate Figure 4 As shown, an installation groove 206 is provided in the middle of the outer side of the bearing base 201. The fixing bearing 202 is embedded in the installation groove 206. A fixing screw hole 207 is provided in the installation groove 206. The fixing bearing 202 is fitted with a fastening bolt 209. The fastening bolt 209 passes through the fixing bearing 202 and is threaded into the fixing screw hole 207 for fixation. The fixing bearing 202 is provided with a receiving groove 208 for the bolt head of the fastening bolt 209 to be fully inserted, which realizes quick disassembly and assembly and avoids interference from the bolt head protruding outward, simplifying the maintenance process.

[0034] The working principle provided by this utility model is that, in use, the self-lubricating composite bearing, due to the detachable fixing pad 202 and the plug-in installed graphite column 203, means that when the graphite column 203 is exhausted, only the fixing pad 202 needs to be removed to replace the graphite column 203, rather than the whole bearing, which greatly reduces maintenance costs and material waste, and is especially suitable for the long-term operation and maintenance needs of large heavy-duty equipment.

[0035] Meanwhile, the graphite column 203 is installed by setting the fixing pin 204 and the lubrication hole 205, and the bidirectional limiting formed by the inner side of the journal 3 and the outer side of the fixing tile 202 can ensure that the lubricant is accurately released to the friction interface, which can avoid the problem of local dry friction caused by uneven distribution of lubricant in traditional sintering process.

[0036] In summary, the lubricant in this device is easy to replace and replenish after it is depleted, without ruining the entire bearing. This facilitates later maintenance, reduces resource waste, and results in good overall performance.

[0037] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A self-lubricating composite bearing comprising a bearing housing (1), a middle part of the bearing housing (1) is provided with a bearing bush mechanism (2), a shaft neck (3) is inserted into the bearing bush mechanism (2), characterized in that, The bearing mechanism (2) comprises two semi-annular bearing bases (201), the outer side of the bearing base (201) is detachably provided with a fixed bearing (202), the inner wall of the fixed bearing (202) is vertically provided with a plurality of graphite columns (203), and the bearing base (201) is correspondingly provided with lubricating holes (205) for embedding the graphite columns (203).

2. The self-lubricating composite bearing of claim 1, wherein, The outer side of the bearing base (201) is provided with an installation groove (206) in the middle, and the fixed bearing (202) is embedded in the installation groove (206).

3. The self-lubricating composite bearing of claim 2, wherein, The installation groove (206) is provided with a fixed screw hole (207), the fixed bearing (202) is matched with a fastening bolt (209), the fastening bolt (209) penetrates through the fixed bearing (202) and is threadedly connected with the fixed screw hole (207).

4. The self-lubricating composite bearing of claim 3, wherein, The fixed bearing (202) is provided with a containing groove (208) for completely placing a bolt cap of the fastening bolt (209).

5. The self-lubricating composite bearing of claim 1, wherein, The inner wall of the fixed bearing (202) is fixedly provided with a plurality of fixed pins (204), and the graphite column (203) is connected with the fixed pin (204).

6. The self-lubricating composite bearing of claim 5, wherein, The length of the fixed pin (204) is not longer than the hole depth of the lubricating hole (205).

7. The self-lubricating composite bearing of claim 6, wherein, The fixed pin (204) is a stainless steel structure with a diameter of not less than 3 mm, and the root of the fixed pin (204) is designed with an excessive round angle.

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