A plain bearing with a support structure

Abstract

The application discloses a sliding bearing with a support structure and belongs to the technical field of bearings, and has the technical scheme as follows: a bearing seat is movably installed with a shaft body, the bearing seat comprises an upper seat body and a lower seat body, and the upper seat body and the lower seat body are connected through fasteners; a bearing bush is installed in the bearing seat and used for supporting the shaft body; a support assembly is installed on the bearing seat, the support assembly comprises a support seat, a support block, a first screw and a first spring, the support seat and the support block are movably connected, the first screw is threadedly connected with the support seat, the support seat and the lower seat body are movably connected through fasteners, and the two ends of the first spring abut against the support seat and the support block. The application can control the shaft body to replace the bearing bush in a low-speed state.

Description

Technical Field

[0001] This application belongs to the field of bearing technology, and in particular relates to a sliding bearing with a support structure. Background Technology

[0002] In wind turbines, rotatable components such as the hub or rotating shaft must be supported by stationary components. Therefore, one or more bearings are used. Due to the loads acting on these rotatable components during operation, the bearings supporting them may wear or fail, requiring repair or replacement. Maintaining proper bearing function often necessitates removing or repairing the bearing shells from the wind turbine. However, due to the size and weight of the bearings, removal or repair can be difficult and requires additional cranes to be deployed to the site; for offshore wind turbines, large vessels are also needed to support the cranes used for bearing removal or replacement. Improvements are needed to address this. Utility Model Content

[0003] The purpose of this application is to address the aforementioned technical problems by providing a sliding bearing with a support structure that enables the replacement of bearing bushes in a low-speed state for a rotating shaft.

[0004] This application provides a sliding bearing with a support structure, including: A bearing housing on which a shaft is movably mounted, the bearing housing comprising an upper housing body and a lower housing body, the upper housing body and the lower housing body being connected by fasteners; Bearing bush, installed inside the bearing housing and used to support the shaft; A support assembly is mounted on a bearing housing. The support assembly includes a support base, a support block, a first screw, and a first spring. The support base and the support block are movably connected. The first screw is threadedly connected to the support base. The support base and the lower seat body are connected by fasteners. The two ends of the first spring abut against the support base and the support block.

[0005] The bearing housing consists of an upper body and a lower body, which are connected by fasteners such as screws. The bearing bush is mounted on the bearing housing and consists of two semi-rings. Conventionally, sliding bearings are supported by the bearing bush. When the bearing bush is worn or damaged and needs repair or replacement, the shaft is supported by a support assembly, allowing the bearing bush to be replaced while the shaft is rotating at a low speed. A support block is mounted on the support seat by a first screw, and a first spring abuts against the support block. The first screw restricts the separation of the support block from the support seat. The first screw is threaded into the support seat, and by screwing the first screw into the support seat, the support block is brought closer to the shaft and abuts against it. By setting multiple support blocks to work together on the shaft, the shaft is controlled in the required position, allowing the bearing bush to be quickly disassembled. The support seat is mounted on the lower body by fasteners such as screws, making it easier to separate the upper and lower bodies.

[0006] Furthermore, the support block includes: Matrix; A Babbitt alloy layer is placed at the end of the substrate, and the Babbitt alloy layer is provided with an abutment surface corresponding to the shaft.

[0007] The Babbitt alloy layer is rigidly connected to the substrate by welding or casting. The Babbitt alloy layer has high wear resistance. When the support block is used to support the shaft, it abuts against the shaft through the abutting surface, which is arc-shaped, further improving the stability of the shaft support.

[0008] Furthermore, the support block also includes: Grease nipple, mounted on the support block; The support block is provided with an oil delivery channel, which is connected between the grease nipple and the contact surface.

[0009] By pressing grease into the lubrication nozzle, the grease is directly guided between the contact surface and the shaft, and the oil delivery channel penetrates the base and the Babbitt alloy layer.

[0010] Furthermore, the support block includes: An end plate is placed at one end of the substrate and opposite the Babbitt alloy layer. The end plate is provided with a countersunk hole through which the first screw passes.

[0011] The end plate is integrally connected to the base. A countersunk hole is machined on the end plate by drilling. The first bolt is installed by passing through the countersunk hole. The end plate facilitates the installation of the first bolt.

[0012] Furthermore, the support base includes: The movable hole corresponds and fits the support block; The limiting groove is aligned with the axis of the movable hole, and the first spring is placed in the limiting groove.

[0013] The movable hole is used to install the support block. The support block moves in the movable hole, which improves the structural stability between the support block and the support base, and further improves the stability of the support block when it is used to support the shaft. The limiting groove is on the same axis as the movable hole and is located on the outer wall of the support base. The limiting groove further improves the installation stability of the first spring.

[0014] Furthermore, it also includes: The sealing cap is installed on the bearing housing.

[0015] The sealing cap is installed on the bearing housing by two semi-circular fittings or integral connection, and the sealing cap improves the sealing performance of the bearing end.

[0016] Furthermore, it also includes: The respirator is mounted on the upper body.

[0017] The breather is installed on the upper body by threads or other fasteners. During the rotation of the shaft, oil mist is formed in the cavity of the bearing housing, generating a certain air pressure. To address this phenomenon, a breather is usually installed on the top of the sliding bearing to balance the air pressure in the bearing cavity.

[0018] Furthermore, the support component also includes: The drive unit is installed and connected to the support block. The drive unit uses pneumatic or hydraulic power to drive the relative movement between the support block and the support base.

[0019] The drive device is driven by a pneumatic cylinder, hydraulic cylinder, or electric cylinder, etc., which drives the support block to move, improving the convenience of the support block's movement, saving labor, and shortening the adjustment time of the support block. The output end of the drive device is installed and connected to the support block. The drive device is installed on the support base or other installation structure that can maintain relative stillness with the support base, ensuring the stability of the drive device driving the support block's movement. The drive device is not shown in the attached drawings.

[0020] The beneficial effects of this application are: 1. When the bearing shell is worn or damaged and needs repair or replacement, the bearing shell is replaced by supporting the shaft with the support assembly, so that the shaft can be rotated at a low speed.

[0021] 2. Screw the first screw into the support base and bring the support block closer to the shaft to abut against it.

[0022] 3. By unscrewing the first screw, the support block moves away from the shaft under the action of the first spring. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the sliding bearing of this application; Figure 2This is a cross-sectional structural diagram of the sliding bearing of this application; Figure 3 For the purposes of this application Figure 2 A magnified view of point A; Figure 4 For the purposes of this application Figure 1 A magnified view of point B; In the attached figures, the following labels are used: 001, shaft; 100, bearing seat; 110, upper seat; 120, lower seat; 200, bearing bush; 300, support assembly; 301, contact surface; 310, support base; 311, movable hole; 312, limiting groove; 320, support block; 321, base; 322, Babbitt metal layer; 323, oil supply channel; 324, end plate; 325, countersunk hole; 330, first screw; 340, first spring; 350, grease nipple; 400, sealing cap; 500, breather. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0025] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0026] The embodiments of this application are described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0027] Example 1: like Figures 1-4 As shown, this application embodiment provides a sliding bearing with a support structure, including: A bearing housing 100 is movably mounted with a shaft 001. The bearing housing 100 includes an upper housing 110 and a lower housing 120, which are connected by fasteners. Bearing bush 200 is installed in bearing housing 100 and is used to support shaft 001; A support assembly 300 is mounted on the bearing housing 100. The support assembly 300 includes a support base 310, a support block 320, a first screw 330, and a first spring 340. The support base 310 and the support block 320 are movably connected. The first screw 330 is threadedly connected to the support base 310. The support base 310 and the lower seat body 120 are connected by fasteners. The two ends of the first spring 340 abut against the support base 310 and the support block 320.

[0028] The bearing housing 100 is composed of an upper housing 110 and a lower housing 120, which are connected by fasteners such as screws. The bearing bush 200 is mounted on the bearing housing 100 and consists of two semi-rings. Conventionally, the sliding bearing is supported by the bearing bush 200. When the bearing bush 200 is worn, damaged, or needs repair or replacement, the support assembly 300 supports the shaft 001, allowing the bearing bush 200 to be replaced while the shaft 001 rotates at a low speed. The support block 320 is mounted on the support seat 310 by the first screw 330. A spring 340 abuts against the support block 320. The first screw 330 restricts the separation of the support block 320 from the support seat 310. The first screw 330 is threadedly connected to the support seat 310. By screwing the first screw 330 into the support seat 310, the support block 320 is brought closer to the shaft 001 and abuts against it. By setting multiple support blocks 320 to work together on the shaft 001, the shaft 001 is controlled in the required position, so that the bearing 200 can be quickly disassembled. The support seat 310 is installed on the lower seat 120 by screws and other fasteners, so that the upper seat 110 and the lower seat 120 are more convenient to separate.

[0029] Example 2: like Figures 2-4 As shown, this application embodiment provides a sliding bearing with a support structure. In addition to the above-mentioned technical features, the support block 320 further includes: Matrix 321; A Babbitt alloy layer 322 is placed at the end of the substrate 321, and the Babbitt alloy layer 322 is provided with an abutment surface 301 corresponding to the shaft 001.

[0030] The Babbitt alloy layer 322 is rigidly connected to the substrate 321 by welding or casting. The Babbitt alloy layer 322 has high wear resistance. When the support block 320 is used to support the shaft 001, it abuts against the shaft 001 through the abutment surface 301. The abutment surface 301 is arc-shaped, which further improves the stability of supporting the shaft 001.

[0031] Furthermore, the support block 320 also includes: Grease nipple 350 is mounted on support block 320; The support block 320 is provided with an oil delivery channel 323, which is connected between the grease nipple 350 and the contact surface 301.

[0032] By pressing grease into the lubrication nozzle 350, the grease is directly guided between the contact surface and the shaft body, and the oil delivery channel 323 penetrates the base 321 and the Babbitt alloy layer 322.

[0033] Furthermore, the support block 320 includes: An end plate 324 is placed at one end of the substrate 321 and opposite to the Babbitt alloy layer 322. The end plate 324 is provided with a countersunk hole 325 through which the first screw 330 passes.

[0034] The end plate 324 is integrally connected to the base 321. A countersunk hole 325 is machined on the end plate 324 by drilling. The first bolt is installed by passing through the countersunk hole 325. The end plate 324 facilitates the installation of the first bolt.

[0035] Furthermore, the support base 310 includes: The movable hole 311 is adapted to the support block 320; The limiting groove 312 is aligned with the axis of the movable hole 311, and the first spring 340 is placed in the limiting groove 312.

[0036] The movable hole 311 is used to install the support block 320. The support block 320 moves in the movable hole 311. The movable hole 311 improves the structural stability between the support block 320 and the support base 310, and further improves the stability of the support block 320 when it is used to support the shaft 001. The limiting groove 312 is on the same axis as the movable hole 311. The limiting groove 312 is placed on the outer side wall of the support base 310. The limiting groove 312 further improves the installation stability of the first spring 340.

[0037] Example 3: like Figure 2 As shown, this application embodiment provides a sliding bearing with a support structure, which, in addition to the above-mentioned technical features, further includes: The sealing cover 400 is installed on the bearing housing 100.

[0038] The sealing cover 400 is installed on the bearing housing 100 by two semi-annular fits or integral connection, and the sealing cover 400 improves the sealing performance of the bearing end.

[0039] Furthermore, it also includes: The respirator 500 is mounted on the upper body 110.

[0040] The breather 500 is installed on the upper body 110 by threads or other fasteners. During the rotation of the shaft 001, oil mist is formed in the cavity of the bearing housing 100, generating a certain air pressure. To address this phenomenon, a breather 500 is generally installed on the top of the sliding bearing to balance the air pressure in the bearing cavity.

[0041] Example 4: This application embodiment provides a sliding bearing with a support structure. In addition to the above-mentioned technical features, the support assembly 300 further includes: The drive unit is installed and connected to the support block 320. The drive unit uses pneumatic or hydraulic power to drive the relative movement between the support block 320 and the support base 310.

[0042] The drive device is driven by a pneumatic cylinder, hydraulic cylinder, or electric cylinder, etc., to move the support block 320, thereby improving the ease of movement of the support block 320, saving labor, and shortening the adjustment time of the support block 320. The output end of the drive device is connected to the support block 320. The drive device is installed on the support base 310 or other installation structure that can maintain relative stillness with the support base 310, ensuring the stability of the drive device in driving the support block 320. The drive device is not shown in the attached drawings.

[0043] It should be noted that, in this document, 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 that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0044] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A sliding bearing with a supporting structure, characterized in that, include: A bearing housing (100) is movably mounted with a shaft (001). The bearing housing (100) includes an upper housing (110) and a lower housing (120). The upper housing (110) and the lower housing (120) are connected by fasteners. The bearing bush (200) is installed in the bearing housing (100) and is used to support the shaft (001). A support assembly (300) is mounted on a bearing housing (100). The support assembly (300) includes a support base (310), a support block (320), a first screw (330), and a first spring (340). The support base (310) and the support block (320) are movably connected. The first screw (330) is threadedly connected to the support base (310). The support base (310) and the lower seat body (120) are connected by fasteners. The two ends of the first spring (340) abut against the support base (310) and the support block (320).

2. The sliding bearing with a supporting structure according to claim 1, characterized in that, The support block (320) includes: Matrix (321); A Babbitt alloy layer (322) is placed at the end of the substrate (321), and the Babbitt alloy layer (322) is provided with an abutment surface (301) corresponding to the shaft (001).

3. The sliding bearing with a supporting structure according to claim 2, characterized in that, The support block (320) also includes: A grease nipple (350) is mounted on a support block (320); The support block (320) is provided with an oil delivery channel (323), which is connected between the grease nipple (350) and the contact surface (301).

4. The sliding bearing with a supporting structure according to claim 2, characterized in that, The support block (320) includes: An end plate (324) is placed at one end of the substrate (321) and opposite to the Babbitt alloy layer (322). The end plate (324) is provided with a countersunk hole (325) through which the first screw (330) passes.

5. The sliding bearing with a supporting structure according to claim 1, characterized in that, The support base (310) includes: The movable hole (311) is adapted to the support block (320); The limiting groove (312) is aligned with the axis of the movable hole (311), and the first spring (340) is placed in the limiting groove (312).

6. The sliding bearing with a supporting structure according to claim 1, characterized in that, Also includes: A sealing cap (400) is installed on the bearing housing (100).

7. The sliding bearing with a supporting structure according to claim 1, characterized in that, Also includes: A respirator (500) is mounted on the upper body (110).

8. The sliding bearing with a supporting structure according to claim 1, characterized in that, The support component (300) also includes: The drive unit is installed and connected to the support block (320). The drive unit uses pneumatic or hydraulic power to drive the relative movement between the support block (320) and the support base (310).

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