Assembled sliding bearing

Abstract

The utility model relates to the field of sliding bearings, in particular to an assembled sliding bearing which comprises a base layer, an outer layer and an inner layer, a plurality of first clamping grooves are formed in the outer side face of the base layer, a plurality of second clamping grooves are formed in the inner side face of the base layer, and a second oil injection channel is further formed in the base layer in a penetrating mode. A plurality of first clamping connection blocks are arranged on the inner side face of the outer layer and connected with the first clamping connection grooves in a clamped mode, a plurality of second clamping connection blocks are arranged on the outer side face of the inner layer and connected with the second clamping connection grooves in a clamped mode, and a third oil injection channel is formed in the inner layer in a penetrating mode. According to the utility model, the base layer, the inner layer and the outer layer are arranged, so that when a large-size sliding bearing used on a large instrument needs to be replaced, the base layer, the inner layer and the outer layer can be separated to realize quick disassembly, and partial components can be replaced or whether an oil injection channel is blocked or not can be checked.

Description

Technical Field

[0001] This utility model relates to the field of sliding bearings, and in particular to an assembled sliding bearing. Background Technology

[0002] A sliding bearing is a component that provides rotational support to a rotating shaft through the relative sliding between the bearing body and the shaft. Generally, due to the high frictional force generated by the dry friction between the bearing body and the shaft during high-speed rotation, not only is the power of the rotating shaft wasted, but a large amount of heat is also generated. Therefore, lubrication of the contact surfaces between the bearing body and the shaft is necessary. Currently, common lubrication methods include: embedding graphite in the bearing shaft for lubrication; using oil grooves and injecting oil; and using a micro-multilayered lubrication layer and immersing it in oil so that the lubricating oil is slowly released from the layer.

[0003] Sliding bearings, as consumable parts, are convenient and inexpensive to replace when used in small machinery. However, when used in large or extra-large machinery, they are not only inconvenient to replace, but also extremely costly. Therefore, it is necessary to improve this structure to overcome these shortcomings. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an assembled sliding bearing. This utility model is achieved through the following technical solution:

[0005] An assembled sliding bearing includes a base layer, an outer layer, and an inner layer. The outer surface of the base layer has a plurality of first snap-fit ​​grooves, and the inner surface of the base layer has a plurality of second snap-fit ​​grooves. A second oil injection channel is also provided through the base layer. The inner surface of the outer layer has a plurality of first snap-fit ​​blocks that snap into the first snap-fit ​​grooves. The outer surface of the inner layer has a plurality of second snap-fit ​​blocks that snap into the second snap-fit ​​grooves. A third oil injection channel is provided through the inner layer.

[0006] In the above technical solution: the base layer, outer layer, and inner layer are sleeved together to form a sliding bearing assembly, and the base layer and outer layer, as well as the base layer and inner layer, can be separated, thereby facilitating component replacement and checking whether the second and third oil injection channels are blocked; both the second and third oil injection channels are used for oil injection; the first snap-fit ​​block and the second snap-fit ​​groove cooperate to snap the outer layer and the base layer together; the second snap-fit ​​block and the second snap-fit ​​groove cooperate to snap the inner layer and the base layer together.

[0007] A further feature of this invention is that a first oil injection channel is provided through the outer layer, and the first oil injection channel corresponds to the position of the third oil injection channel, and the first oil injection channel also corresponds to the position of the second oil injection channel.

[0008] In the above technical solution: the first oil injection channel is used for oil injection; the positions of the first oil injection channel and the third oil injection channel correspond to each other, so that the oil can enter from the first oil injection channel and then pass through the second oil injection channel to reach the third oil injection channel.

[0009] A further feature of this invention is that a plurality of mounting holes are evenly provided on the inner wall surface of the inner layer, and a graphite block is fixedly disposed in the mounting hole.

[0010] In the above technical solution: the mounting hole is used to set the graphite block; the graphite block is used to achieve self-lubrication.

[0011] A further feature of this invention is that the graphite block is cylindrical, and the diameter of the graphite block is the same as the diameter of the mounting hole.

[0012] In the above technical solution, the diameter of the graphite block is the same as the diameter of the mounting hole, making it difficult for the graphite block to fall off.

[0013] A further feature of this invention is that the diameters of the second and third oil injection channels are the same, and the diameter of the first oil injection channel is the same as the diameter of the second oil injection channel.

[0014] In the above technical solution, the diameters of the first oil injection channel, the second oil injection channel, and the third oil injection channel are the same, which makes it easier to align them during installation.

[0015] A further feature of this invention is that a connecting annular groove is provided on the outer side wall of the outer layer, and the connecting annular groove is connected to the first oil injection channel.

[0016] In the above technical solution: the connecting annular groove is used to allow oil to enter all the first oil injection channels.

[0017] A further feature of this invention is that a connecting groove is provided on the side of the first snap-fit ​​block of the base layer near the outer layer, and the connecting groove connects to the second oil injection channel.

[0018] In the above technical solution: the connecting transverse groove is used to allow oil to flow from the first oil injection channel into the connecting transverse groove, and then enter the second oil injection channel provided on the same first snap-fit ​​block through the connecting transverse groove.

[0019] This utility model discloses an assembled sliding bearing, which, compared with the prior art:

[0020] 1. This utility model, by setting a base layer, an inner layer and an outer layer, enables quick disassembly when it is necessary to replace a large-sized sliding bearing used on large machinery, by separating the base layer, the inner layer and the outer layer, and to replace some parts or check whether the oil injection channel is blocked.

[0021] 2. This utility model can also change the lubrication method by changing the installation method between the inner layer and the base layer or by replacing the inner layer with a different structure. For example, the inner layer with graphite blocks can be used to achieve self-lubrication, and the inner layer with a third oil injection channel can be used to achieve oil injection lubrication. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model;

[0023] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the base layer of this utility model;

[0025] Figure 4 This is a schematic diagram of the inner layer of this utility model;

[0026] Figure 5 This is a schematic diagram of the outer layer of this utility model;

[0027] Figure 6 This is a cross-sectional schematic diagram of another installation method of this utility model.

[0028] The numbers and letters in the diagram represent the following component names: 10-Base layer; 101-First snap-fit ​​groove; 102-Second snap-fit ​​groove; 103-Second oil injection channel; 104-Connecting transverse groove; 20-Outer layer; 201-First snap-fit ​​block; 202-First oil injection channel; 203-Connecting annular groove; 30-Inner layer; 301-Second snap-fit ​​block; 302-Third oil injection channel; 303-Mounting hole; 40-Graphite block. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0030] like Figure 1-6As shown, the present invention proposes an assembled sliding bearing, comprising a base layer 10, an outer layer 20, and an inner layer 30. The outer surface of the base layer 10 is provided with a plurality of first engaging grooves 101, and the inner surface of the base layer 10 is provided with a plurality of second engaging grooves 102. A second oil injection channel 103 is also provided through the base layer 10. The inner surface of the outer layer 20 is provided with a plurality of first engaging blocks 201, which engage with the first engaging grooves 101. The outer surface of the inner layer 30 is provided with a plurality of second engaging blocks 301, which engage with the second engaging grooves 102. A third oil injection channel 302 is provided through the inner layer 30. Preferably, there are twelve first snap-fit ​​slots 101, which are evenly distributed, and twelve second snap-fit ​​slots 102, which are also evenly distributed; the first snap-fit ​​slots 101 and the second snap-fit ​​slots 102 are arranged correspondingly; there are twelve first snap-fit ​​blocks 201; there are twelve second snap-fit ​​blocks 301; there are six second oil filling channels 103, and preferably, the positions of the second oil filling channels 103 and the second snap-fit ​​slots 102 are staggered; there are six third oil filling channels 302, and the third oil filling channels 302 are staggered with the second snap-fit ​​blocks 301.

[0031] like Figure 1-6 As shown, this utility model proposes an assembled sliding bearing, in which a first oil injection channel 202 is provided through the outer layer 20, and the first oil injection channel 202 corresponds to the position of the third oil injection channel 302, and also corresponds to the position of the second oil injection channel 103. The number of the first oil injection channels 202 is six, and the first oil injection channels 202 are staggered with the first locking block 201.

[0032] like Figure 1-6 As shown, this utility model proposes an assembled sliding bearing in which a plurality of mounting holes 303 are evenly provided on the inner wall surface of the inner layer 30, and graphite blocks 40 are fixedly disposed in the mounting holes 303. The graphite blocks 40 are bonded to the mounting holes 303. After the graphite blocks 40 are bonded to the mounting holes 303, the inner wall surface of the inner layer 30 is further processed so that the inner wall surface of the graphite blocks 40 coincides with the inner wall surface of the inner layer 30.

[0033] like Figure 1-6 As shown, the present invention proposes an assembled sliding bearing in which the graphite block 40 is cylindrical and the diameter of the graphite block 40 is the same as the diameter of the mounting hole 303.

[0034] like Figure 1-6As shown, the present invention proposes an assembled sliding bearing in which the diameters of the second oil injection channel 103 and the third oil injection channel 302 are the same, and the diameter of the first oil injection channel 202 is the same as the diameter of the second oil injection channel 103.

[0035] like Figure 1-6 As shown, the present invention proposes an assembled sliding bearing, wherein the outer wall of the outer layer 20 is provided with a connecting annular groove 203, which is connected to the first oil injection channel 202.

[0036] like Figure 1-6 As shown, the present invention proposes an assembled sliding bearing in which the first snap-fit ​​block 201 of the base layer 10 is provided with a connecting transverse groove 104 on the side near the outer layer 20, and the connecting transverse groove 104 connects to the second oil injection channel 103.

[0037] The working principle of this utility model is as follows:

[0038] a) When installing this utility model, the second oil injection channel and the third oil injection channel are aligned;

[0039] b) The first oil injection channel, the second oil injection channel and the third oil injection channel are connected, and oil injection lubrication can be achieved by injecting oil into the first oil injection channel;

[0040] c) If the second oil injection channel is aligned with the position of the mounting hole (graphite block);

[0041] d) Then the second and third oil injection channels are not connected, and self-lubrication can only be achieved through the graphite block;

[0042] e) When replacement is required, the base layer and outer layer are separated by cooling and tapping.

[0043] f) At this point, the base layer and the inner layer are removed together with the rotating shaft;

[0044] g) Inspect for damage. If the outer layer is damaged, replace the outer layer and reassemble.

[0045] h) If the inner layer is damaged, separate the inner layer from the base layer, replace the inner layer, and then reassemble.

[0046] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An assembled sliding bearing, characterized in that: The system includes a base layer (10), an outer layer (20), and an inner layer (30). The outer surface of the base layer (10) is provided with a plurality of first snap-fit ​​grooves (101), the inner surface of the base layer (10) is provided with a plurality of second snap-fit ​​grooves (102), and a second oil injection channel (103) is also provided through the base layer (10). The inner surface of the outer layer (20) is provided with a plurality of first snap-fit ​​blocks (201), which snap into the first snap-fit ​​grooves (101). The outer surface of the inner layer (30) is provided with a plurality of second snap-fit ​​blocks (301), which snap into the second snap-fit ​​grooves (102). A third oil injection channel (302) is provided through the inner layer (30).

2. The assembled sliding bearing according to claim 1, characterized in that: The outer layer (20) is provided with a first oil injection channel (202), and the first oil injection channel (202) corresponds to the position of the third oil injection channel (302), and the first oil injection channel (202) also corresponds to the position of the second oil injection channel (103).

3. The assembled sliding bearing according to claim 2, characterized in that: The inner wall of the inner layer (30) is also uniformly provided with a plurality of mounting holes (303), and a graphite block (40) is fixedly disposed in the mounting hole (303).

4. The assembled sliding bearing according to claim 3, characterized in that: The graphite block (40) is cylindrical, and the diameter of the graphite block (40) is the same as the diameter of the mounting hole (303).

5. The assembled sliding bearing according to claim 4, characterized in that: The diameters of the second oil injection channel (103) and the third oil injection channel (302) are the same, and the diameter of the first oil injection channel (202) is the same as the diameter of the second oil injection channel (103).

6. The assembled sliding bearing according to claim 5, characterized in that: The outer wall of the outer layer (20) is also provided with a connecting annular groove (203), which is connected to the first oil injection channel (202).

7. The assembled sliding bearing according to claim 6, characterized in that: The first snap-fit ​​block (201) of the base layer (10) has a connecting transverse groove (104) on its side near the outer layer (20), and the connecting transverse groove (104) connects to the second oil injection channel (103).

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