A connecting structure of a gas turbine exhaust pipe cover opening and closing device

Abstract

The present application belongs to the technical field of gas turbine exhaust pipe cover, and particularly relates to a connecting structure of a gas turbine exhaust pipe cover opening and closing device, which comprises an exhaust cover mounted on an exhaust pipe through an opening and closing mechanism, wherein the opening and closing mechanism comprises a mounting box welded on the exhaust pipe, an inner side of the mounting box is provided with a telescopic electric rod through a damping mechanism and a buffering mechanism, and a piston rod of the telescopic electric rod is fixedly provided with an opening and closing slide plate through bolts; the problem to be solved in the present application is that the connection of the opening and closing device is damaged or poorly connected due to long-term vibration after long-term use, thereby affecting the opening and closing of the pipe cover; in use, the exhaust cover is opened and closed through the opening and closing mechanism, and the position of the opening and closing pressing plate is adjusted through the adjusting mechanism, so that the opening and closing pressing plate and the surface opening and closing rack are tightly pressed on the exhaust cover, thereby ensuring that the opening and closing rack is more stably engaged with the exhaust cover, ensuring that the opening and closing is more stable, and reducing the phenomenon that the poor connection causes sliding and affects the opening and closing.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of gas turbine exhaust pipe covers, and particularly relates to a gas turbine exhaust pipe cover opening and closing device connecting structure. BACKGROUND

[0002] As a heat engine for converting heat energy into mechanical energy, a gas turbine is composed of a compressor, a combustion chamber and a turbine. An exhaust pipe, as a key passage for discharging exhaust gas, is usually equipped with an openable and closable pipe cover to realize system sealing and protection.

[0003] The existing gas turbine exhaust pipe is covered and protected by an exhaust pipe cover when not in use, and is opened and closed by an opening and closing device for use. After long-term use, the connection of the opening and closing device is damaged or poorly connected due to long-term vibration, thereby affecting the opening and closing of the pipe cover. Therefore, a gas turbine exhaust pipe cover opening and closing device connecting structure needs to be designed to solve the above problems. SUMMARY

[0004] The application aims to provide a gas turbine exhaust pipe cover opening and closing device connecting structure to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a gas turbine exhaust pipe cover opening and closing device connecting structure, comprising an exhaust cover mounted on an exhaust pipe through an opening and closing mechanism, wherein the opening and closing mechanism comprises a mounting box welded on the exhaust pipe, a telescopic electric rod is mounted on the inner side of the mounting box through a damping mechanism and a buffer mechanism, a piston rod of the telescopic electric rod is fixedly installed with an opening and closing slide plate through a bolt, two sides of the opening and closing slide plate are installed with opening and closing pressure plates through an adjusting mechanism, an outer surface of the opening and closing pressure plate is fixedly installed with an opening and closing rack through a screw, and the opening and closing rack is engaged on an opening and closing gear ring at one end of the exhaust cover through gear teeth.

[0006] The adjusting mechanism comprises a pressing screw rod rotatably installed in the middle of the opening and closing slide plate, one end of the pressing screw rod penetrates through the opening and closing slide plate and is welded with a rotating head, the outer side of the pressing screw rod is threadedly combined with a pressing nut, the pressing nut is slidingly installed in the opening and closing slide plate through a sliding groove, the outer side of the pressing nut is rotatably installed with a pressing push rod through a rotating shaft, one end of the pressing push rod is rotatably installed with a pressing push plate, and the pressing push plate is fixedly installed on one side of the opening and closing pressure plate through a screw.

[0007] Preferably, a guide groove is formed in one end of the opening and closing pressure plate, and a guide rod is slidingly installed in the guide groove, and one end of the opening and closing pressure plate is rotatably connected with the opening and closing slide plate through the guide groove and the guide rod.

[0008] Preferably, the two tight pressing push rods are symmetrically installed on the tight pressing push plate, and the tight pressing nuts at one end of the two symmetric tight pressing push rods are symmetrically installed on the tight pressing screw rod, and the surface of the tight pressing screw rod is symmetrically provided with threads corresponding to the positions of the tight pressing nuts.

[0009] Preferably, the damping mechanism comprises a damping sliding seat slidingly installed in the mounting box and a supporting spring fixed at the bottom of the mounting box, one end of the supporting spring is supported on the damping sliding seat, and one end of the telescopic electric rod is installed on the damping sliding seat.

[0010] Preferably, a damping spring is installed on the inner side of the mounting box, one end of the damping spring is fixedly installed with a damping sliding block, one side of the damping sliding seat is provided with a push block corresponding to the damping sliding block, and one end of the push block is tightly pressed on the damping sliding block.

[0011] Preferably, one side of the damping sliding block and the push block is provided with an inclined surface, and the inclined surface of the push block is installed with a ball.

[0012] Preferably, the buffering mechanism comprises a buffering limiting plate fixed on the inner wall of the mounting box and a buffering sliding block slidingly installed on the inner wall of the mounting box, a buffering spring is installed between the buffering limiting plate and the buffering sliding block, and one end of the buffering spring is fixed on one end of the telescopic electric rod.

[0013] Preferably, the exhaust cover comprises a fixed cover plate, a connecting cover plate and a movable cover plate, the connecting cover plate is rotationally installed between the fixed cover plate and the movable cover plate in sequence, the fixed cover plate is fixedly installed on the outer side of the exhaust pipe, and the opening and closing tooth ring is fixedly installed on one end of the movable cover plate through screws.

[0014] Preferably, one side of the connecting cover plate and the fixed cover plate is provided with a sliding ring, and the fixed cover plate, the connecting cover plate and the movable cover plate are rotationally connected in sequence through the sliding ring and the sliding groove.

[0015] Preferably, a sealing pad is fixedly attached to one side of the movable cover plate, and the exhaust covers are closed through the sealing pad.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] 1. By designing the opening and closing mechanism, the exhaust cover is opened and closed through the opening and closing mechanism during use, and the position of the opening and closing pressing plate is adjusted through the adjusting mechanism, so that the opening and closing pressing plate and the surface of the opening and closing rack are tightly pressed on the exhaust cover, thereby ensuring that the opening and closing rack and the exhaust cover are more stably engaged, ensuring that the opening and closing is more stable, and reducing the phenomenon that poor connection causes sliding to affect the opening and closing.

[0018] 2. By the designed damping mechanism and buffer mechanism, the damping mechanism and the buffer mechanism are respectively supported at both ends of the telescopic electric rod during use, and the damping mechanism and the buffer mechanism can be supported and buffered when the telescopic electric rod drives the opening and closing pressure plate to slide, so that the fatigue damage phenomenon of the connection due to long-term operation is reduced.

[0019] 3. By the designed exhaust cover, the cover plate and the movable cover plate are connected by the sliding ring during use, and the cover plate, the connecting cover plate and the movable cover plate are stacked and stored when opened, and the sealing pad is used to ensure that the exhaust cover is tightly attached to the exhaust pipe opening position, so that the protection effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the application;

[0021] Figure 2 It is a structural schematic diagram of the exhaust cover of the application;

[0022] Figure 3 It is a structural schematic diagram of the opening and closing mechanism of the application;

[0023] Figure 4 It is a structural schematic diagram of the application; Figure 3 It is an enlarged structural schematic diagram of A in the application;

[0024] Figure 5 It is an enlarged structural schematic diagram of B in the application; Figure 3 It is an enlarged structural schematic diagram of B in the application;

[0025] Figure 6 It is an enlarged structural schematic diagram of C in the application; Figure 3 It is an enlarged structural schematic diagram of C in the application;

[0026] Figure 7 It is a structural schematic diagram of the exhaust cover separation structure of the application;

[0027] In the figure: 1, exhaust pipe; 2, opening and closing mechanism; 21, mounting box; 22, telescopic electric rod; 23, opening and closing slide plate; 24, opening and closing pressure plate; 25, opening and closing rack; 3, exhaust cover; 31, fixed cover plate; 32, connecting cover plate; 33, movable cover plate; 34, opening and closing gear ring; 35, sliding ring; 36, sealing pad; 4, damping mechanism; 41, damping sliding seat; 42, supporting spring; 43, pushing block; 44, damping damping sliding block; 45, damping spring; 5, buffer mechanism; 51, buffer limiting plate; 52, buffer spring; 53, buffer sliding block; 6, adjusting mechanism; 61, rotating head; 62, compression screw; 63, compression nut; 64, compression push rod; 65, compression push plate. DETAILED DESCRIPTION

[0028] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0029] Embodiment one: please refer to Figures 1 to 7 The present application provides a technical solution: a connecting structure of a gas turbine exhaust pipe cover opening and closing device, comprising an exhaust cover 3 installed on an exhaust pipe 1 through an opening and closing mechanism 2, the opening and closing mechanism 2 comprising a mounting box 21 welded on the exhaust pipe 1, the inner side of the mounting box 21 being installed with a telescopic electric rod 22 through a damping mechanism 4 and a buffer mechanism 5, the piston rod of the telescopic electric rod 22 being fixedly installed with an opening and closing sliding plate 23 through a bolt, the two sides of the opening and closing sliding plate 23 being installed with an opening and closing pressing plate 24 through an adjusting mechanism 6, the outer surface of the opening and closing pressing plate 24 being fixedly installed with an opening and closing rack 25 through a screw, the opening and closing rack 25 being engaged with an opening and closing gear ring 34 at one end of the exhaust cover 3 through a gear, the opening and closing sliding plate 23 being driven to move by the driving of the telescopic electric rod 22, the opening and closing pressing plate 24 and the opening and closing rack 25 being driven to move by the opening and closing sliding plate 23, the opening and closing rack 25 being engaged with the opening and closing gear ring 34 through a gear, thereby driving the movable cover plate 33 to rotate;

[0030] The adjusting mechanism 6 comprises a pressing screw 62 rotatably installed in the middle of the opening and closing sliding plate 23, one end of the pressing screw 62 penetrating through the opening and closing sliding plate 23 and being welded with a rotating head 61, the outer side of the pressing screw 62 being threadedly combined with a pressing nut 63, and the pressing nut 63 being slidingly installed in the opening and closing sliding plate 23 through a sliding groove, the outer side of the pressing nut 63 being rotatably installed with a pressing push rod 64 through a rotating shaft, one end of the pressing push rod 64 being rotatably installed with a pressing push plate 65, and the pressing push plate 65 being fixedly installed on one side of the opening and closing pressing plate 24 through a screw; the pressing push rod 64 is symmetrically installed on the pressing push plate 65, and the pressing nut 63 at one end of the two symmetric pressing push rods 64 is symmetrically installed on the pressing screw 62, and the surface of the pressing screw 62 is symmetrically provided with a thread corresponding to the position of the pressing nut 63, which facilitates the relative movement of the two symmetric pressing nuts 63 driven by the pressing screw 62, and then drives the pressing push rod 64 and the pressing push plate 65 to stably adjust the lifting.

[0031] Further, please refer to Figures 1 to 7 One end of the opening and closing pressing plate 24 is provided with a guide groove, and a guide rod is slidingly installed in the guide groove, and one end of the opening and closing pressing plate 24 is rotatably connected with the opening and closing sliding plate 23 through the guide groove and the guide rod, which facilitates the rotational adjustment of the position of the opening and closing pressing plate 24, thereby better driving the opening and closing rack 25 to adjust the position.

[0032] From the above description, the present application has the following beneficial effects: in use, the exhaust cover 3 is opened and closed by the opening and closing mechanism 2, and the position of the opening and closing pressure plate 24 is adjusted by the adjusting mechanism 6, so that the opening and closing pressure plate 24 and the surface opening and closing rack 25 are tightly pressed on the exhaust cover 3, thereby ensuring that the opening and closing rack 25 and the exhaust cover 3 are more stable, ensuring that the opening and closing is more stable, and reducing the phenomenon of sliding due to poor connection.

[0033] Embodiment two: please refer to Figures 1 to 7 As shown in the figure, on the basis of embodiment one, the present application provides a technical solution: the damping mechanism 4 includes a damping sliding seat 41 slidingly installed in the mounting box 21 and a supporting spring 42 fixed to the bottom of the mounting box 21, one end of the supporting spring 42 is supported on the damping sliding seat 41, and one end of the telescopic electric rod 22 is installed on the damping sliding seat 41, so that the thrust generated during the operation of the telescopic electric rod 22 can be buffered by sliding the damping sliding seat 41 on the supporting spring 42; a damping spring 45 is installed on the inner side of the mounting box 21, one end of the damping spring 45 is fixedly installed with a damping sliding block 44, one side of the damping sliding seat 41 is provided with a push block 43 corresponding to the damping sliding block 44, and one end of the push block 43 is tightly pressed on the damping sliding block 44, the push block 43 pushes the damping sliding block 44 to press on the damping spring 45 to assist buffering, and when the push block 43 pushes the damping sliding block 44, the damping sliding block 44 is pressed on the inner wall of the mounting box 21 to frictionally dampen; one side of the damping sliding block 44 and the push block 43 is provided with an inclined surface, and a ball is installed on the inclined surface of the push block 43, which facilitates the push block 43 to push the damping sliding block 44 to adhere to the inner wall of the mounting box 21 in use.

[0034] Further, please refer to Figures 1 to 7 The buffering mechanism 5 includes a buffering limiting plate 51 fixed to the inner wall of the mounting box 21 and a buffering sliding block 53 slidingly installed in the inner wall of the mounting box 21, a buffering spring 52 is installed between the buffering limiting plate 51 and the buffering sliding block 53, one end of the buffering spring 52 is fixed to one end of the telescopic electric rod 22, the buffering sliding block 53 is slidingly installed in the inner wall of the mounting box 21 to assist damping, and the buffering spring 52 further protects the telescopic electric rod 22.

[0035] The damping mechanism 4 and the buffering mechanism 5 adopt the above technical solution, which supports the two ends of the telescopic electric rod 22 through the damping mechanism 4 and the buffering mechanism 5 respectively in use, and can support and buffer through the damping mechanism 4 and the buffering mechanism 5 when the telescopic electric rod 22 drives the opening and closing pressure plate 24 to slide, thereby reducing the phenomenon of fatigue damage at the connection due to long-term operation.

[0036] Further, please refer to Figures 1 to 7The exhaust cover 3 comprises a fixed cover plate 31, a connecting cover plate 32 and a movable cover plate 33, the connecting cover plate 32 is rotatably installed between the fixed cover plate 31 and the movable cover plate 33 in sequence, the fixed cover plate 31 is fixedly installed on the outer side of the exhaust pipe 1, the opening and closing tooth ring 34 is fixedly installed on one end of the movable cover plate 33 through a screw, when opening, the opening and closing toothed rack 25 is engaged on the opening and closing tooth ring 34 through the tooth, so as to drive the movable cover plate 33 to rotate and open, and drive the connecting cover plate 32 to be sequentially retracted into the fixed cover plate 31, one side of the connecting cover plate 32 and the fixed cover plate 31 is provided with a sliding ring 35, the fixed cover plate 31, the connecting cover plate 32 and the movable cover plate 33 are rotatably connected in sequence through the sliding ring 35 and the sliding groove, the connecting cover plate 32 is driven to be sequentially retracted into the fixed cover plate 31 through the sliding ring 35 and the sliding groove, one side of the movable cover plate 33 is fixedly attached with a sealing pad 36, the exhaust cover 3 is closed through the sealing pad 36, and the effect is better when the movable cover plate 33 is rotated and closed in use.

[0037] The exhaust cover 3 adopts the above technical scheme, the connecting cover plate 32 and the movable cover plate 33 are slidably connected through the sliding ring 35 in use, the fixed cover plate 31, the connecting cover plate 32 and the movable cover plate 33 are stacked and retracted in opening, and the sealing pad 36 is used to ensure that the exhaust cover 3 is tightly attached, so that the protection effect on the opening position of the exhaust pipe 1 is better.

[0038] The working principle and use process of the present application are as follows: in use, the opening and closing sliding plate 23 is driven to move through the driving of the telescopic electric rod 22, the opening and closing sliding plate 23 drives the opening and closing pressing plate 24 and the opening and closing toothed rack 25 to move, the opening and closing toothed rack 25 is engaged on the opening and closing tooth ring 34 through the tooth, so as to drive the movable cover plate 33 to rotate, the connecting cover plate 32 is driven to be sequentially retracted into the fixed cover plate 31 through the sliding ring 35 and the sliding groove, so as to open the exhaust pipe 1 for use, the pushing force generated when the telescopic electric rod 22 operates can be buffered by sliding and pressing the support spring 42 through the damping sliding seat 41, at the same time, the pushing block 43 pushes the damping sliding block 44 to press on the damping spring 45 to assist buffering, when the inclined surface pushing block 43 pushes the damping sliding block 44, the damping sliding block 44 is pressed on the inner wall of the mounting box 21 to rub and damp, and the buffering sliding block 53 is used to slide on the inner wall of the mounting box 21 to assist damping, and the buffering spring 52 is used to further protect the telescopic electric rod 22, after long-term use, the opening and closing toothed rack 25 and the opening and closing tooth ring 34 are loose due to movement, the tight pressing screw 62 can be rotated through the rotating head 61, the tight pressing screw 62 drives the tight pressing nut 63 to move, the tight pressing nut 63 drives the tight pressing push rod 64 to rotate, the tight pressing push plate 65 is used to drive the opening and closing pressing plate 24 and the opening and closing toothed rack 25 to move position, so as to ensure that the opening and closing toothed rack 25 is more stable through the tooth engagement on the opening and closing tooth ring 34.

[0039] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0040] The above description is merely intended to illustrate the technical solutions of the present application, but not to limit the same. Other modifications or equivalent replacements to the technical solutions of the present application made by those skilled in the art, without departing from the spirit and scope of the present application, shall be included in the scope of the claims of the present application.

Claims

1. A connection structure of a gas turbine exhaust pipe cover opening and closing device, characterized by: The exhaust cover (3) is installed on the exhaust pipe (1) through the opening and closing mechanism (2), the opening and closing mechanism (2) comprises a mounting box (21) welded on the exhaust pipe (1), the inner side of the mounting box (21) is provided with a telescopic electric rod (22) through a damping mechanism (4) and a buffering mechanism (5), the piston rod of the telescopic electric rod (22) is fixedly provided with an opening and closing slide plate (23) through bolts, the two sides of the opening and closing slide plate (23) are provided with opening and closing pressing plates (24) through adjusting mechanisms (6), the outer surface of the opening and closing pressing plate (24) is fixedly provided with an opening and closing rack (25) through screws, the opening and closing rack (25) is engaged with an opening and closing gear ring (34) at one end of the exhaust cover (3) through the gear teeth. The adjusting mechanism (6) comprises a pressing screw (62) rotatably installed in the middle of the opening and closing slide plate (23), one end of the pressing screw (62) penetrates through the opening and closing slide plate (23) and is welded with a rotating head (61), the outer side of the pressing screw (62) is threadedly combined with a pressing nut (63), and the pressing nut (63) is slidably installed in the opening and closing slide plate (23), the outer side of the pressing nut (63) is rotatably installed with a pressing push rod (64) through a rotating shaft, one end of the pressing push rod (64) is rotatably installed with a pressing push plate (65), and the pressing push plate (65) is fixedly installed on one side of the opening and closing pressing plate (24) through screws. One end of the opening and closing pressing plate (24) is provided with a guide groove, and a guide rod is slidably installed in the guide groove, and one end of the opening and closing pressing plate (24) is rotatably connected with the opening and closing slide plate (23) through the guide groove and the guide rod. The damping mechanism (4) comprises a damping sliding seat (41) slidably installed in the mounting box (21) and a supporting spring (42) fixedly installed at the bottom of the mounting box (21), one end of the supporting spring (42) is supported on the damping sliding seat (41), and one end of the telescopic electric rod (22) is installed on the damping sliding seat (41). The inner side of the mounting box (21) is provided with a damping spring (45), one end of the damping spring (45) is fixedly provided with a damping damping sliding block (44), one side of the damping sliding seat (41) is provided with a pushing block (43) corresponding to the damping damping sliding block (44), and one end of the pushing block (43) is pressed on the damping damping sliding block (44). The buffering mechanism (5) comprises a buffering limiting plate (51) fixedly installed on the inner wall of the mounting box (21) and a buffering sliding block (53) slidably installed on the inner wall of the mounting box (21), and the buffering limiting plate (51) and the buffering sliding block (53) are provided with a buffering spring (52), and one end of the buffering spring (52) is fixedly installed on one end of the telescopic electric rod (22). The exhaust cover (3) comprises a fixed cover plate (31), a connecting cover plate (32) and a movable cover plate (33), the connecting cover plate (32) is rotatably installed between the fixed cover plate (31) and the movable cover plate (33) in sequence, the fixed cover plate (31) is fixedly installed on the outer side of the exhaust pipe (1), and the opening and closing gear ring (34) is fixedly installed on one end of the movable cover plate (33) through screws.

2. A connection structure for a gas turbine exhaust pipe cover opening and closing device according to claim 1, characterized in that: The tight pressing push rod (64) is symmetrically installed on the tight pressing push plate (65), and the tight pressing nuts (63) at one end of the two symmetric tight pressing push rods (64) are symmetrically installed on the tight pressing screw rod (62), and the surface of the tight pressing screw rod (62) is symmetrically provided with threads corresponding to the positions of the tight pressing nuts (63).

3. The connection structure of a gas turbine exhaust pipe cover opening and closing device according to claim 1, characterized in that: The shock-absorbing damping sliding block (44) and the push block (43) are provided with inclined surfaces on one side, and the inclined surface of the push block (43) is provided with a ball bearing.

4. The connection structure of a gas turbine exhaust pipe cover opening and closing device according to claim 1, characterized in that: The connecting cover plate (32) and the fixed cover plate (31) are provided with sliding rings (35) on one side, and the fixed cover plate (31), the connecting cover plate (32) and the movable cover plate (33) are sequentially stacked and matched with the sliding rings (35) and the sliding grooves to be rotationally connected.

5. A connection structure for a gas turbine exhaust pipe cover opening and closing device according to claim 4, characterized in that: The movable cover plate (33) is provided with a sealing gasket (36) on one side, and the exhaust covers (3) are closed through the sealing gasket (36).

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