Diaphragm coupling for turbine

Abstract

The utility model relates to the technical field of diaphragm couplings, in particular to a diaphragm coupling for a turbine, which comprises an upper shaft sleeve, a lower shaft sleeve arranged below the upper shaft sleeve, a fixing bolt arranged above the upper shaft sleeve, an upper fixing plate fixedly connected to the side wall of the upper shaft sleeve, and a lower fixing plate fixedly connected to the side wall of the lower shaft sleeve. The side walls of the upper fixing plate and the lower fixing plate are rotationally connected with connecting bolts, one side of the upper fixing plate and one side of the lower fixing plate are provided with anti-disengaging semi-ring sleeves, and the side walls of the anti-disengaging semi-ring sleeves are provided with connecting threaded grooves. Firstly, the upper shaft sleeve is connected with the lower shaft sleeve through the fixing bolt, then the connecting bolt is in threaded connection with the connecting threaded groove, then the connecting bolt is rotated to drive the anti-disengaging semi-ring sleeve to abut against the side wall of the upper shaft sleeve through the connecting threaded groove, and then the anti-disengaging semi-ring sleeve can form a sealing sleeve to protect the fixing bolt inside. The fixing bolt can be prevented from loosening and disengaging, potential safety hazards are reduced, the using stability is improved, the structure is simple, and operation and manufacturing are convenient.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm coupling technology, specifically a diaphragm coupling for a turbine. Background Technology

[0002] A diaphragm coupling consists of at least one diaphragm and two bushings, with the diaphragm fastened to the bushings by pins. Common structures include single-diaphragm, double-diaphragm, and triple-diaphragm configurations. There may be one or two rigid elements in the middle, with the two ends connected to the bushings. The elastic deformation of the diaphragm compensates for the relative displacement of the two connected shafts. Torque is transmitted through the pure tension in the flexible components. When the driving shaft rotates, the elastic deformation of the diaphragm drives the driven shaft to rotate, thus achieving power transmission.

[0003] The two bushings are usually fixed together by fixing bolts. However, vibrations will occur during the use of the diaphragm coupling. These vibrations may cause the fixing bolts to loosen, which will cause the two bushings of the diaphragm coupling to detach and affect normal use.

[0004] In view of this, we propose a diaphragm coupling for turbines. Utility Model Content

[0005] The purpose of this invention is to provide a diaphragm coupling for a turbine to solve the problems mentioned in the background art.

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

[0007] A diaphragm coupling for a turbine includes an upper bushing, a lower bushing below the upper bushing, and a fixing bolt above the upper bushing. An upper fixing plate is fixedly connected to the side wall of the upper bushing, and a lower fixing plate is fixedly connected to the side wall of the lower bushing. A connecting bolt is rotatably connected to the side walls of the upper and lower fixing plates. An anti-detachment semi-ring is provided on one side of the upper and lower fixing plates. A connecting thread groove is opened on the side wall of the anti-detachment semi-ring, and the connecting thread groove is threadedly connected to the connecting bolt.

[0008] First, the upper and lower bushings are connected by fixing bolts. Then, the connecting bolts are threaded into the connecting thread groove. Rotating the connecting bolts causes the anti-loosening semi-ring to abut against the side wall of the upper bushing through the connecting thread groove. The anti-loosening semi-ring then forms a sealing sleeve to protect the fixing bolt inside, preventing the fixing bolt from loosening and coming off, reducing safety hazards, improving stability during use, and having a simple structure, easy operation, and easy manufacturing.

[0009] Preferably, one end of the connecting bolt is provided with an auxiliary thread groove, and the inner wall of the auxiliary thread groove is threaded with an auxiliary bolt;

[0010] By setting up an auxiliary threaded groove and an auxiliary bolt, when the auxiliary threaded groove needs to be rotated, the auxiliary bolt can be threaded into the auxiliary threaded groove. The auxiliary bolt will form an extension rod. Then, rotating the auxiliary bolt will drive the connecting threaded groove to rotate, thereby moving the anti-loosening semi-ring. After the sealing work is completed, the auxiliary bolt can be unscrewed and removed to avoid affecting the aesthetics. It is simple and practical.

[0011] Preferably, one end of the auxiliary bolt is fixedly connected to a strip block;

[0012] By setting up strip blocks, the auxiliary bolts can be rotated more easily, improving the convenience of operation.

[0013] Preferably, the sidewalls of the strip block are fitted with rubber sleeves;

[0014] By adding a rubber sleeve, the anti-slip properties of the strip block's sidewalls and the comfort of operation are improved.

[0015] Preferably, the sidewall of the rubber sleeve has multiple strip grooves;

[0016] By setting multiple grooves, the roughness of the rubber sleeve sidewall is increased, thereby increasing the friction.

[0017] Preferably, the anti-loosening semi-ring sleeve sidewall on one side of the connecting bolt is provided with a set screw groove, and the internal thread of the set screw groove is connected with a fixing set screw;

[0018] By setting the set screw groove and fixing the set screw together, after adjusting the position of the anti-loosening half ring, the fixing set screw can be rotated so that one end of the fixing set screw abuts against the side wall of the connecting bolt, thereby fixing the connecting bolt and preventing the connecting bolt from rotating, thus improving the stability of use.

[0019] Preferably, the top and bottom surfaces of the anti-detachment semi-ring are provided with through holes;

[0020] By setting through holes, when the anti-loosening semi-ring is on one side of the fixing bolt, glue or other fillers can be sprayed into the space between the anti-loosening semi-ring and the fixing bolt through the through holes. These glues and other fillers can seal the fixing bolt and further prevent the fixing bolt from loosening.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This diaphragm coupling for a turbine first connects the upper and lower bushings with fixing bolts. Then, the connecting bolts are threaded into the connecting thread groove. Rotating the connecting bolts causes the anti-loosening semi-ring to abut against the side wall of the upper bushing through the connecting thread groove. The anti-loosening semi-ring then forms a sealing sleeve to protect the fixing bolt inside, preventing the fixing bolt from loosening and detaching, reducing safety hazards, improving stability during use, and having a simple structure, convenient operation, and easy manufacturing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is one of the side view structural schematic diagrams of this utility model;

[0025] Figure 3 This is the second side view schematic diagram of the structure of this utility model;

[0026] Figure 4 This is the third side view of the structure of this utility model.

[0027] In the diagram: 1. Upper bushing; 2. Lower bushing; 3. Fixing bolt; 4. Upper fixing plate; 5. Lower fixing plate; 6. Anti-loosening semi-ring; 7. Connecting thread groove; 8. Connecting bolt; 9. Auxiliary thread groove; 10. Auxiliary bolt; 11. Strip block; 12. Rubber sleeve; 13. Strip groove; 14. Set screw groove; 15. Fixing set screw; 16. Through hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] Please see Figure 1 - Figure 4 As shown, this utility model provides a technical solution:

[0031] A diaphragm coupling for a turbine includes an upper bushing 1, characterized in that: a lower bushing 2 is provided below the upper bushing 1, and a fixing bolt 3 is provided above the upper bushing 1; an upper fixing plate 4 is fixedly connected to the side wall of the upper bushing 1, and a lower fixing plate 5 is fixedly connected to the side wall of the lower bushing 2; a connecting bolt 8 is rotatably connected to the side walls of the upper fixing plate 4 and the lower fixing plate 5; and an anti-detachment semi-ring 6 is provided on one side of the upper fixing plate 4 and the lower fixing plate 5; the side wall of the anti-detachment semi-ring 6 has a connecting threaded groove 7. Furthermore, the connecting thread groove 7 is threadedly connected to the connecting bolt 8; firstly, the upper bushing 1 and the lower bushing 2 are connected by the fixing bolt 3, then the connecting bolt 8 is threadedly connected to the connecting thread groove 7, and then the connecting bolt 8 is rotated to drive the anti-loosening semi-ring 6 to abut against the side wall of the upper bushing 1 through the connecting thread groove 7. In this way, the anti-loosening semi-ring 6 will form a sealing sleeve to protect the fixing bolt 3 inside, which can prevent the fixing bolt 3 from loosening and falling off, reduce safety hazards, improve stability during use, and has a simple structure, is easy to operate, and is easy to manufacture.

[0032] In this embodiment, one end of the connecting bolt 8 is provided with an auxiliary threaded groove 9, and the inner wall of the auxiliary threaded groove 9 is threaded with an auxiliary bolt 10. By setting the cooperation between the auxiliary threaded groove 9 and the auxiliary bolt 10, when it is necessary to rotate the auxiliary threaded groove 9, the auxiliary bolt 10 can be threadedly connected to the auxiliary threaded groove 9, and the auxiliary bolt 10 will form an extension rod. Then, rotating the auxiliary bolt 10 can drive the connecting threaded groove 7 to rotate, thereby moving the anti-loosening semi-ring 6. After the sealing work is completed, the auxiliary bolt 10 can be unscrewed and removed to avoid the auxiliary bolt 10 affecting the aesthetics. It is simple and practical.

[0033] In this embodiment, a strip block 11 is fixedly connected to one end of the auxiliary bolt 10; by setting the strip block 11, it is convenient to rotate the auxiliary bolt 10, thereby improving the ease of operation.

[0034] In this embodiment, the side wall of the strip block 11 is fitted with a rubber sleeve 12; by setting the rubber sleeve 12, the anti-slip properties of the side wall of the strip block 11 and the comfort of operation will be improved.

[0035] In this embodiment, the sidewall of the rubber sleeve 12 is provided with a plurality of strip grooves 13; by providing a plurality of strip grooves 13, the strip grooves 13 will increase the roughness of the sidewall of the rubber sleeve 12 and increase the friction.

[0036] In this embodiment, a set screw groove 14 is provided on the side wall of the anti-loosening semi-ring 6 on one side of the connecting bolt 8, and a fixing set screw 15 is connected to the internal thread of the set screw groove 14. By setting the set screw groove 14 and the fixing set screw 15, after adjusting the position of the anti-loosening semi-ring 6, the fixing set screw 15 can be rotated so that one end of the fixing set screw 15 abuts against the side wall of the connecting bolt 8, thereby fixing the connecting bolt 8 and preventing the connecting bolt 8 from rotating, thus improving the stability of use.

[0037] In this embodiment, the top and bottom surfaces of the anti-detachment semi-ring sleeve 6 are provided with through holes 16. By providing through holes 16, when the anti-detachment semi-ring sleeve 6 is on one side of the fixing bolt 3, glue or other fillers can be sprayed into the space between the anti-detachment semi-ring sleeve 6 and the fixing bolt 3 through the through holes 16. These glues or other fillers can seal the fixing bolt 3, further preventing the possibility of the fixing bolt 3 loosening.

[0038] In this embodiment, a diaphragm coupling for a turbine is used by first connecting the upper bushing 1 and the lower bushing 2 with the fixing bolt 3. Then, the connecting bolt 8 is threaded into the connecting thread groove 7. Rotating the connecting bolt 8 causes the anti-detachment semi-ring 6 to abut against the side wall of the upper bushing 1 through the connecting thread groove 7. The anti-detachment semi-ring 6 then forms a sealing sleeve to protect the fixing bolt 3 inside, preventing the fixing bolt 3 from loosening and detaching, reducing safety hazards, and improving stability during use. It has a simple structure, is easy to operate, and is easy to manufacture. Furthermore, by setting the set screw groove 14 and the fixing set screw 15, after adjusting the position of the anti-detachment semi-ring 6, the fixing set screw 15 can be rotated so that one end of the fixing set screw 15 abuts against the side wall of the connecting bolt 8, thereby fixing the connecting bolt 8 and preventing the connecting bolt 8 from rotating, thus improving the stability during use.

[0039] By setting the auxiliary threaded groove 9 and the auxiliary bolt 10 to cooperate, when the auxiliary threaded groove 9 needs to be rotated, the auxiliary bolt 10 can be threaded to the auxiliary threaded groove 9. The auxiliary bolt 10 will form an extension rod. Then, rotating the auxiliary bolt 10 will drive the connecting threaded groove 7 to rotate, thereby moving the anti-loosening half ring 6. After the sealing work is completed, the auxiliary bolt 10 can be unscrewed and removed to avoid the auxiliary bolt 10 affecting the aesthetics. It is simple and practical.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A diaphragm coupling for a turbine, comprising an upper bushing (1), characterized in that: The upper bushing (1) is provided with a lower bushing (2) below it, and a fixing bolt (3) is provided above the upper bushing (1). An upper fixing plate (4) is fixedly connected to the side wall of the upper bushing (1), and a lower fixing plate (5) is fixedly connected to the side wall of the lower bushing (2). A connecting bolt (8) is rotatably connected to the side walls of the upper fixing plate (4) and the lower fixing plate (5). An anti-detachment semi-ring (6) is provided on one side of the upper fixing plate (4) and the lower fixing plate (5). A connecting thread groove (7) is opened on the side wall of the anti-detachment semi-ring (6), and the connecting thread groove (7) is threadedly connected to the connecting bolt (8).

2. A diaphragm coupling for a turbine according to claim 1, characterized in that: One end of the connecting bolt (8) is provided with an auxiliary thread groove (9), and the inner wall of the auxiliary thread groove (9) is threaded with an auxiliary bolt (10).

3. A diaphragm coupling for a turbine according to claim 2, characterized in that: One end of the auxiliary bolt (10) is fixedly connected to a strip block (11).

4. A diaphragm coupling for a turbine according to claim 3, characterized in that: The sidewall of the strip block (11) is fitted with a rubber sleeve (12).

5. A diaphragm coupling for a turbine according to claim 4, characterized in that: The sidewall of the rubber sleeve (12) is provided with multiple strip grooves (13).

6. A diaphragm coupling for a turbine according to claim 1, characterized in that: The anti-loosening semi-ring (6) sidewall of the connecting bolt (8) is provided with a top screw groove (14), and the internal thread of the top screw groove (14) is connected with a fixing top screw (15).

7. A diaphragm coupling for a turbine according to claim 1, characterized in that: The top and bottom surfaces of the anti-detachment semi-ring sleeve (6) are provided with through holes (16).

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