Block combined type hydro-generator bearing bush

Abstract

The utility model discloses a tile combined type hydro-generator bearing bush, which belongs to the technical field of bearing bushes and comprises a bearing bush component. The bearing bush assembly is formed by splicing a plurality of bearing bush modules, the two ends of each bearing bush module are each provided with a quick disassembly and assembly mechanism, each quick disassembly and assembly mechanism comprises an inserting groove, an inserting block, a sliding groove, a spring and a locking assembly, and a uniform lubricating mechanism is arranged in the bearing bush assembly. By means of the mode, the bearing bush assembly is formed by splicing the bearing bush modules in a matched mode through the inserting grooves and the inserting blocks, when the locking assembly works, the inserting blocks can be controlled to stretch out of the sliding grooves and be inserted into the inserting grooves, when the locking assembly does not work, the inserting blocks can reset under the action of the springs, and therefore when the bearing bush assembly is damaged, only the bearing bush modules at the damaged positions need to be replaced; the use cost of the bearing bush is effectively reduced, any bearing bush module of the bearing bush assembly can be disassembled, assembled and replaced, and replacement operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically to a composite bearing for a hydro-generator. Background Technology

[0002] Bearing bushes are an important component of the supporting structure of a rotating shaft, and their performance directly affects the working condition of the shaft or bearing.

[0003] Chinese patent CN219623092U discloses a water turbine generator bearing with cooling function, including a bearing shell with two symmetrical one-way valves slidably connected on it. A plug is fixedly connected to the bearing shell, and a connecting seat is slidably sleeved on the outer side of the plug. The connecting seat is fixedly connected to the one-way valves and contacts the bearing shell. A plug rod is slidably connected inside the connecting seat and slidably connected to the plug. A pull block is fixedly connected to the plug rod and contacts the connecting seat. This bearing shell allows for the connection and use of one-way valves, and the connection process is more convenient and easy to operate. However, during operation, the bearing shell is easily damaged due to machine vibration or lubricating oil, requiring the entire damaged bearing shell to be replaced, resulting in high operating costs. Furthermore, conventional combined bearing shells typically use a protrusion and groove structure to install and fix two connected bearing shells. When a bearing shell needs repair or replacement, the connected bearing shell must be removed for repair or replacement, which is inconvenient.

[0004] Based on this, this utility model designs a tile-combined hydro turbine generator bearing to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a composite bearing for a hydro-generator.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A type of composite bearing for a hydro-turbine generator, comprising a bearing assembly;

[0008] The bearing assembly is composed of several bearing modules. Each bearing module has a quick-release mechanism at both ends. The quick-release mechanism includes a slot, a plug, a groove, a spring, and a locking component. One end of the bearing module has a slot, and the other end has a groove. A plug for insertion into the slot is slidably connected within the groove. The spring is located within the groove, and its two ends are fixedly connected to the plug and the side wall of the groove, respectively. A locking component is provided on the outer ring surface of the bearing module. The locking component is used to control the plug to extend out of the groove and be inserted into the slot of the adjacent bearing module, preventing the bearing module from sliding along its axial direction. A uniform lubrication mechanism is provided inside the bearing assembly.

[0009] Furthermore, the locking assembly includes a support plate and a fixing plate. The outer wall of the bearing module has a receiving groove that can fully accommodate the support plate and the fixing plate. The fixing plate is fixedly connected to the support plate, and the insert has a locking groove that engages with the fixing plate.

[0010] Furthermore, the bottom of the fixing plate and the receiving groove are provided with matching screw holes for installing screws to achieve the effect of fixing the support plate.

[0011] Furthermore, the end of the fixing plate is provided with a first inclined surface, and the insert block is provided with a second inclined surface that slides in cooperation with the first inclined surface.

[0012] Furthermore, the uniform lubrication mechanism includes a recovery hole, an oil injection hole, a main lubrication groove, a secondary lubrication groove, and a recovery groove. The main lubrication groove is provided in the middle of the inner ring surface of the bearing assembly, and recovery grooves are symmetrically provided on both sides of the inner ring surface of the bearing assembly. A secondary lubrication groove is provided between the main lubrication groove and the recovery groove.

[0013] Furthermore, the lubrication grooves are provided with multiple grooves arranged in a circumferential array with equal spacing.

[0014] Furthermore, the lubrication groove is inclined.

[0015] Furthermore, the bottom of the main lubrication groove is provided with multiple oil injection holes in a circumferential array, and the recovery groove is provided with multiple recovery holes in a circumferential array; the side wall of the bearing assembly is provided with an oil injection channel and an oil outlet channel, the oil injection channel is connected to the oil injection hole, and the oil outlet channel is connected to the recovery hole.

[0016] Compared with the prior art, the advantages of this utility model are as follows: 1. The bearing assembly is composed of several bearing modules connected by slots and inserts. When the locking component is working, it controls the insert to extend from the slide and insert into the slot. When the locking component is not working, the insert will be reset under the action of the spring. Thus, when the bearing assembly is damaged, only the damaged bearing module needs to be replaced, which effectively reduces the cost of bearing use. In addition, any bearing module of the bearing assembly can be disassembled and replaced, making the replacement operation more convenient.

[0017] After being injected through the oil injection channel, the lubricating oil flows into the main lubrication groove through the oil injection hole and spreads along the inner wall of the bearing assembly with the support lubrication groove. Finally, it flows into the recovery groove and is discharged through the recovery hole and oil outlet channel for recycling. This helps to form an oil film on the inner wall of the bearing assembly, maintain the lubrication performance of the bearing assembly, and eliminates concerns about waste caused by lubricating oil overflow. It also makes it convenient to recycle and reuse the lubricating oil. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This utility model relates to a three-dimensional composite bearing bush for a hydro-generator. Figure 1 ;

[0020] Figure 2 This is a front half-sectional view of a composite water turbine generator bearing according to the present invention;

[0021] Figure 3 This is a perspective view of the bearing module of this utility model;

[0022] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0023] The labels in the diagram represent:

[0024] 1. Bearing module; 2. Uniform lubrication mechanism; 21. Oil injection channel; 22. Oil outlet channel; 23. Recovery hole; 24. Oil injection hole; 25. Main lubrication groove; 26. Support lubrication groove; 27. Recovery groove; 3. Quick disassembly and assembly mechanism; 31. Slot; 32. Insert block; 33. Slide groove; 34. Spring; 35. Support plate; 36. Fixing plate; 37. Receiving groove; 38. Locking groove; 39. First inclined surface; 310. Second inclined surface; 311. Screw hole. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0027] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-4 A type of composite turbine generator bearing, comprising a bearing assembly;

[0028] The bearing assembly is composed of several bearing modules 1 spliced ​​together. Each bearing module 1 has a quick-release mechanism 3 at both ends. The quick-release mechanism 3 includes a slot 31, a plug 32, a slide 33, a spring 34, and a locking component. One end of the bearing module 1 has a slot 31, and the other end has a slide 33. The plug 32 for insertion into the slot 31 is slidably connected in the slide 33. The spring 34 is disposed in the slide 33, and its two ends are fixedly connected to the plug 32 and the side wall of the slide 33, respectively. The outer ring surface of the bearing module 1 is provided with a locking component, which is used to control the plug 32 to extend out of the slide 33 and be inserted into the slot 31 of the adjacent bearing module 1 for fixation, preventing the bearing module 1 from sliding along its axial direction. The bearing assembly is provided with a uniform lubrication mechanism 2.

[0029] In this invention, the bearing assembly is composed of several bearing modules 1 connected by slots 31 and inserts 32. When the locking component is working, it controls the inserts 32 to extend from the slide 33 and insert into the slot 31. When the locking component is not working, the inserts 32 will be reset under the action of the spring 34. Thus, when the bearing assembly is damaged, only the damaged bearing module 1 needs to be replaced, which effectively reduces the cost of bearing use. Furthermore, any bearing module 1 of the bearing assembly can be disassembled and replaced, making the replacement operation more convenient.

[0030] The locking assembly includes a support plate 35 and a fixing plate 36. The outer wall of the bearing module 1 is provided with a receiving groove 37 that can fully accommodate the support plate 35 and the fixing plate 36. The fixing plate 36 is fixedly connected to the support plate 35. The insert block 32 is provided with a locking groove 38 that engages with the fixing plate 36.

[0031] The bottom of the fixing plate 36 and the receiving groove 37 are provided with matching screw holes 311, which are used to install screws to achieve the effect of fixing the support plate 35.

[0032] The end of the fixing plate 36 is provided with a first inclined surface 39, and the insert block 32 is provided with a second inclined surface 310 that slides in cooperation with the first inclined surface 39.

[0033] In this invention, when the spring 34 is in its natural state, the insert block 32 retracts into the slide groove 33, and the fixing plate 36 is inserted into the receiving groove 37. The first inclined surface 39 at the end of the fixing plate 36 slides against the second inclined surface 310 on the insert block 32, pushing the insert block 32 outward from the slide groove 33, thereby achieving the effect of fixing the connected bearing module 1. After the fixing plate 36 is fully inserted into the locking groove 38, a screw is installed in the screw hole 311 to fix the support plate 35 in the receiving groove 37. The support plate 35 is fully contained in the receiving groove 37 and does not protrude from the bearing module 1, which facilitates the installation of the bearing module 1.

[0034] The uniform lubrication mechanism 2 includes a recovery hole 23, an oil injection hole 24, a main lubrication groove 25, a support lubrication groove 26, and a recovery groove 27. The main lubrication groove 25 is provided in the middle of the inner ring surface of the bearing assembly, and the recovery grooves 27 are symmetrically provided on both sides of the inner ring surface of the bearing assembly. The support lubrication grooves 26 are provided between the main lubrication grooves 25 and the recovery grooves 27. Multiple support lubrication grooves 26 are provided and are evenly distributed in a circumferential array on the inner wall of the bearing assembly. At the same time, the support lubrication grooves 26 are inclined to increase the retention time of lubricating oil in the support lubrication grooves 26.

[0035] The bottom of the main lubrication groove 25 is provided with a plurality of oil injection holes 24 evenly arranged in a circular array, and the recovery groove 27 is provided with a plurality of recovery holes 23 evenly arranged in a circular array; the side wall of the bearing assembly is provided with an oil injection channel 21 and an oil outlet channel 22, the oil injection channel 21 is connected to the oil injection holes 24, and the oil outlet channel 22 is connected to the recovery holes 23.

[0036] In this invention, lubricating oil is injected through the oil injection channel 21 and flows into the main lubrication groove 25 through the oil injection hole 24. It then spreads along the inner wall of the bearing assembly with the support lubrication groove 26 and finally flows into the recovery groove 27. It is then discharged and recovered through the recovery hole 23 and the oil outlet channel 22. This facilitates the formation of an oil film on the inner wall of the bearing assembly, maintains the lubrication performance of the bearing assembly, eliminates concerns about waste caused by lubricating oil overflow, and allows for convenient recycling of the lubricating oil.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A type of composite bearing for a hydro-generator, comprising a bearing assembly, characterized in that: The bearing assembly is composed of several bearing modules (1) spliced ​​together. Each bearing module (1) is provided with a quick disassembly mechanism (3) at both ends. The quick disassembly mechanism (3) includes a slot (31), a plug (32), a slide (33), a spring (34) and a locking component. One end of the bearing module (1) is provided with a slot (31), and the other end of the bearing module (1) is provided with a slide (33). The slide (33) is slidably connected with a plug (32) for insertion into the slot (31). The spring (34) is provided in the slide (33), and the two ends of the spring (34) are fixedly connected to the plug (32) and the side wall of the slide (33) respectively. The outer ring surface of the bearing module (1) is provided with a locking component. The locking component is used to control the plug (32) to extend out from the slide (33) and be inserted into the slot (31) of the adjacent bearing module (1) to prevent the bearing module (1) from sliding along its axial direction. The bearing assembly is provided with a uniform lubrication mechanism (2).

2. The combined bearing bush of the hydro-generator according to claim 1, characterized in that, The locking assembly includes a support plate (35) and a fixing plate (36). The outer wall of the bearing module (1) is provided with a receiving groove (37) that can fully accommodate the support plate (35) and the fixing plate (36). The fixing plate (36) is fixedly connected to the support plate (35). The insert (32) is provided with a locking groove (38) that engages with the fixing plate (36).

3. The combined bearing bush of the hydro-generator according to claim 2, characterized in that, The bottom of the fixing plate (36) and the receiving groove (37) are provided with matching screw holes (311). The screw holes (311) are used to install screws to achieve the fixing effect on the support plate (35).

4. The combined turbine generator bearing according to claim 2, characterized in that, The end of the fixing plate (36) is provided with a first inclined surface (39), and the insert (32) is provided with a second inclined surface (310) that slides in cooperation with the first inclined surface (39).

5. The combined bearing bush of the hydro-generator according to claim 1, characterized in that, The uniform lubrication mechanism (2) includes a main lubrication groove (25), a branch lubrication groove (26), and a recovery groove (27). The main lubrication groove (25) is provided in the middle of the inner ring surface of the bearing assembly, and the recovery grooves (27) are symmetrically provided on both sides of the inner ring surface of the bearing assembly. The branch lubrication groove (26) is provided between the main lubrication groove (25) and the recovery groove (27).

6. The combined turbine generator bearing according to claim 5, characterized in that, Multiple lubrication grooves (26) are provided and are evenly distributed in a circumferential array on the inner wall of the bearing assembly.

7. The combined bearing bush of the hydro-generator according to claim 5, characterized in that, The lubrication groove (26) is set at an angle.

8. The combined bearing bush of the hydro-generator according to claim 5, characterized in that, The bottom of the main lubrication groove (25) is provided with multiple oil injection holes (24) in a circumferential array, and the recovery groove (27) is provided with multiple recovery holes (23) in a circumferential array. The side wall of the bearing assembly is provided with an oil injection channel (21) and an oil outlet channel (22). The oil injection channel (21) is connected to the oil injection hole (24), and the oil outlet channel (22) is connected to the recovery hole (23).

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