High-wear-resistance generator main shaft

Abstract

The utility model provides a highly wear-resistant generator main shaft, which comprises a main shaft, the surface of the main shaft is connected with a sliding sleeve in a sliding manner, and the surface of the sliding sleeve is sleeved with a bearing. According to the high-wear-resistance generator main shaft, the main shaft is sleeved with the sliding sleeve, then the sliding sleeve is sleeved with the bearing, the first limiting sleeve and the second limiting sleeve are inserted into the limiting grooves through the limiting blocks, then the first limiting sleeve and the second limiting sleeve are inserted into the clamping grooves in the surface of the main shaft through the clamping blocks, and bolts are screwed; when the main shaft rotates and the main shaft rotates on the bearing seat through the sliding sleeve, the bolt penetrates through the first limiting sleeve and is in threaded connection with the threaded hole, the first limiting sleeve and the second limiting sleeve are connected together, and then the sliding sleeve is fixed to the main shaft through the first limiting sleeve and the second limiting sleeve. The main shaft is prevented from being in direct contact with the bearing, so that the main shaft is not easy to abrade during use to affect the use of the generator.

Description

Technical Field

[0001] The utility model relates to the technical field related to generators, and in particular to a highly wear-resistant generator main shaft. Background Art

[0002] At present, the large-scale equipment in the fields of electricity, petrochemicals, ships, etc. is developing very rapidly, and the construction of generator sets in power plants is also increasing. In the manufacturing process of large-scale generator sets, the quality of the main shaft largely determines the stability and safety of the generator set operation. In the design of traditional generators, the generator main shaft, as a key rotating component, undertakes the important functions of transmitting torque and supporting the rotor.

[0003] However, when the bearing seat of the prior art supports the main shaft, since the two are directly connected together through the bearing, the connection between the main shaft and the bearing is prone to wear after long-term use, resulting in the main shaft being unable to be used normally. Utility Model Content

[0004] The purpose of the utility model is to provide a highly wear-resistant generator main shaft to solve the problem of the existing highly wear-resistant generator main shaft proposed in the above background technology. However, when the bearing seat in the prior art supports the main shaft, since the two are directly connected together through bearings, the connection between the main shaft and the bearing seat is prone to wear after long-term use, resulting in the problem that the main shaft cannot be used normally.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly wear-resistant generator main shaft, comprising a main shaft, wherein slots are provided on both sides of one end of the main shaft, a first limit sleeve is sleeved on the right side of the surface of the main shaft, a block is slidably connected to the inner wall of the slot, one end of the block is fixedly connected to the first limit sleeve, the top of the first limit sleeve is threadedly connected to a bolt, a second limit sleeve is sleeved on the left side of the surface of the main shaft, a threaded hole is provided on the top of the second limit sleeve, a bolt is threadedly connected to the inner wall of the threaded hole, a sliding sleeve is slidably connected to the surface of the main shaft, a bearing is sleeved on the surface of the sliding sleeve, a locking thread is provided on the rear end of the main shaft, and a locking nut is threadedly connected to the surface of the locking thread.

[0006] Preferably, a flange is provided at one end of the main shaft.

[0007] Preferably, the slots are symmetrically arranged with respect to the central axis of the main shaft, and the inner wall size of the slots is consistent with the outer wall size of the block.

[0008] Preferably, the bolt is threadedly connected to the second limiting sleeve through a threaded hole.

[0009] Preferably, the rear ends of the first and second limiting sleeves are fixedly connected with a plurality of limiting blocks, the front end of the sliding sleeve is provided with a plurality of limiting grooves, and the inner walls of the limiting grooves are slidably connected with the limiting blocks.

[0010] Preferably, one end of the bearing is fixedly connected to a first rubber ring and the other end of the bearing is fixedly connected to a second rubber ring.

[0011] Preferably, the surface of the main shaft is covered with epoxy wear-resistant coating.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the high wear-resistant generator main shaft is achieved by arranging the sliding sleeve on the main shaft, and then arranging the bearing sleeve on the sliding sleeve, inserting the first limit sleeve and the second limit sleeve into the limit groove through the limit block, and then inserting the first limit sleeve and the second limit sleeve into the groove on the main shaft surface through the clamping block, screwing the bolt so that the bolt passes through the first limit sleeve and is threadedly connected with the threaded hole, so that the first limit sleeve and the second limit sleeve are connected together, and then the sliding sleeve is fixed to the main shaft through the first limit sleeve and the second limit sleeve. When the main shaft rotates, the main shaft rotates on the bearing seat through the sliding sleeve. The setting of the sliding sleeve prevents the main shaft from directly contacting the bearing, so that the main shaft is not easy to wear during use, which affects the use of the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the locking thread and the locking nut cooperating with each other in the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the sliding sleeve and the limiting groove cooperating with each other in the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the card slot and the card block cooperating with each other in the utility model;

[0017] Figure 5 This is a schematic diagram of the structure in which the main shaft and the epoxy wear-resistant coating cooperate with each other in the utility model.

[0018] In the figure: 1. main shaft; 2. flange; 3. slot; 4. first limit sleeve; 5. block; 6. bolt; 7. second limit sleeve; 8. threaded hole; 9. limit block; 10. sliding sleeve; 11. limit slot; 12. first rubber ring; 13. bearing; 14. locking thread; 15. locking nut; 16. second rubber ring; 17. epoxy wear-resistant coating. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 The utility model provides a technical solution: a high wear-resistant generator main shaft, including a main shaft 1, a card slot 3 is opened on both sides of one end of the main shaft 1, a first limiting sleeve 4 is sleeved on the right side of the surface of the main shaft 1, a card block 5 is slidably connected to the inner wall of the card slot 3, one end of the card block 5 is fixedly connected to the first limiting sleeve 4, the top of the first limiting sleeve 4 is threadedly connected with a bolt 6, a second limiting sleeve 7 is sleeved on the left side of the surface of the main shaft 1, a threaded hole 8 is opened on the top of the second limiting sleeve 7, the inner wall of the threaded hole 8 is threadedly connected with the bolt 6, a sliding sleeve 10 is slidably connected to the surface of the main shaft 1, a bearing 13 is sleeved on the surface of the sliding sleeve 10, a locking thread 14 is opened on the rear end of the main shaft 1, and a locking nut 15 is threadedly connected to the surface of the locking thread 14, the locking nut 15 can be used to limit the bearing 13 to prevent the bearing 13 from sliding on the sliding sleeve 10 at will.

[0021] Furthermore, a flange 2 is provided at one end of the main shaft 1, and the main shaft 1 can be connected to another shaft through the provision of the flange 2.

[0022] Furthermore, the slot 3 is symmetrically arranged with respect to the central axis of the main shaft 1, and the inner wall size of the slot 3 is consistent with the outer wall size of the block 5. Through the arrangement of the slot 3 and the block 5, when the block 5 slides inside the slot 3, the slot 3 can limit the sliding of the block 5 to prevent the block 5 from shaking inside the slot 3.

[0023] Furthermore, the bolt 6 is threadedly connected to the second limiting sleeve 7 through the threaded hole 8, so that the bolt 6 passes through the first limiting sleeve 4 and is threadedly connected to the threaded hole 8, so that the first limiting sleeve 4 and the second limiting sleeve 7 are fixed together to prevent the first limiting sleeve 4 and the second limiting sleeve 7 from shaking under normal use.

[0024] Furthermore, the rear ends of the first limit sleeve 4 and the second limit sleeve 7 are fixedly connected to multiple sets of limit blocks 9, the front end of the sliding sleeve 10 is provided with multiple sets of limit grooves 11, and the inner walls of the limit grooves 11 are slidably connected to the limit blocks 9, so that the first limit sleeve 4 and the second limit sleeve 7 can be inserted into the limit grooves 11 through the limit blocks 9.

[0025] Furthermore, one end of the bearing 13 is fixedly connected to the first rubber ring 12 and the other end is fixedly connected to the second rubber ring 16, thereby reducing the friction between the bearing 13 and the first limiting sleeve 4, the second limiting sleeve 7 and the locking nut 15, and facilitating the rotation of the main shaft 1 in the bearing 13 through the sliding sleeve 10.

[0026] Furthermore, the surface of the main shaft 1 is covered with epoxy wear-resistant coating 17, making the main shaft 1 more wear-resistant.

[0027] Working principle: The above embodiment discloses a highly wear-resistant generator main shaft, wherein, when in use, the locking nut 15 is screwed to make the locking nut 15 threadedly connected with the main shaft 1 through the locking thread 14, thereby fixing the locking nut 15 on the main shaft 1, sleeve the sliding sleeve 10 on the main shaft 1, and then sleeve the bearing 13 on the sliding sleeve 10, insert the first limiting sleeve 4 and the second limiting sleeve 7 into the limiting groove 11 through the limiting block 9, and then insert the first limiting sleeve 4 and the second limiting sleeve 7 into the main shaft 1 through the clamping block 5. On the slot 3 on the surface, screw the bolt 6 to make the bolt 6 pass through the first limiting sleeve 4 and be threadedly connected with the threaded hole 8, so that the first limiting sleeve 4 and the second limiting sleeve 7 are connected together, and then the sliding sleeve 10 is fixed to the main shaft 1 through the first limiting sleeve 4 and the second limiting sleeve 7. When the main shaft 1 rotates, the main shaft 1 rotates on the bearing seat through the sliding sleeve 10. The setting of the sliding sleeve 10 prevents the main shaft 1 from directly contacting the bearing 13, so that the main shaft 1 is not easy to wear during use, which affects the use of the generator.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly wear-resistant generator main shaft, comprising a main shaft (1), characterized in that: A clamping groove (3) is provided on both sides of one end of the main shaft (1); a first limiting sleeve (4) is sleeved on the right side of the surface of the main shaft (1); a clamping block (5) is slidably connected to the inner wall of the clamping groove (3); one end of the clamping block (5) is fixedly connected to the first limiting sleeve (4); a bolt (6) is threadedly connected to the top of the first limiting sleeve (4); a second limiting sleeve (7) is sleeved on the left side of the surface of the main shaft (1); a threaded hole (8) is provided on the top of the second limiting sleeve (7); a bolt (6) is threadedly connected to the inner wall of the threaded hole (8); a sliding sleeve (10) is slidably connected to the surface of the main shaft (1); a bearing (13) is sleeved on the surface of the sliding sleeve (10); a locking thread (14) is provided at the rear end of the main shaft (1); a locking nut (15) is threadedly connected to the surface of the locking thread (14).

2. A highly wear-resistant generator main shaft according to claim 1, characterized in that: A flange (2) is provided at one end of the main shaft (1).

3. The highly wear-resistant generator main shaft according to claim 1, characterized in that: The clamping groove (3) is symmetrically arranged with respect to the central axis of the main shaft (1), and the inner wall size of the clamping groove (3) is consistent with the outer wall size of the clamping block (5).

4. The highly wear-resistant generator main shaft according to claim 1, characterized in that: The bolt (6) is threadedly connected to the second limiting sleeve (7) through a threaded hole (8).

5. The highly wear-resistant generator main shaft according to claim 1, characterized in that: The rear ends of the first limiting sleeve (4) and the second limiting sleeve (7) are fixedly connected to a plurality of limiting blocks (9), the front end of the sliding sleeve (10) is provided with a plurality of limiting grooves (11), and the inner walls of the limiting grooves (11) are slidably connected to the limiting blocks (9).

6. The highly wear-resistant generator main shaft according to claim 1, characterized in that: One end of the bearing (13) is fixedly connected to a first rubber ring (12) and the other end is fixedly connected to a second rubber ring (16).

7. The highly wear-resistant generator main shaft according to claim 1, characterized in that: The surface of the main shaft (1) is covered with epoxy wear-resistant coating (17).

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