A water turbine guide shoe dismounting device

Abstract

The utility model provides a kind of water turbine guide shoe dismounting device, water turbine includes shell, and the body connected with shell in the way of selection. Among them, shell is set to annular hollow structure, and guide shoe is arranged along its contour on the radial inner side of shell, and fixed hole coaxial with shell is further arranged on body. Device includes with guide shoe each other abuts together ejection mechanism, with ejection mechanism is connected, and allows the driving mechanism of driving ejection mechanism movement, and with driving mechanism is connected, and the force output mechanism of enabling driving mechanism. Among them, ejection mechanism includes disc body, and the abutting portion of being arranged on disc body and extending to guide shoe, the driving mechanism is arranged on disc body, and allows driving disc body to move along axial direction, to drive abutting portion to promote guide shoe movement. In this setting, it can promote guide shoe movement in the way of with guide shoe each other abuts, to avoid arranging stress point on guide shoe to be vulnerable to damage guide shoe.

Description

Technical Field

[0001] This utility model relates to the field of turbine guide vane disassembly and assembly technology, and in particular to a turbine guide vane disassembly device. Background Technology

[0002] In the maintenance and repair of water turbines, it is generally necessary to disassemble the guide shoes. For example... Figure 1 As shown, the turbine 10 includes a casing 101 and a body 102 that is selectively fixed to the casing 101. The casing 101 is configured as a hollow annular structure, and guide vanes 103 are disposed radially inside the casing 101 and evenly distributed along its contour. Furthermore, a fixing hole 104 is provided on the body 102, the fixing hole 104 being configured to be coaxial with the casing 101.

[0003] In existing technology, when it is necessary to disassemble the guide tile 103, the turbine 10 is generally placed parallel to a fixed surface (foundation or similar), and lifting points are arranged on the turbine, while cables are used to fix it to the guide tile 103. At this time, a lifting device applies force to the cable along the lifting points, causing the cable to gradually shorten. During this process, the cable exerts a force on the guide tile 103, causing it to move from the housing 101 to the outside. This achieves the disassembly of the guide tile 103.

[0004] While this method allows the guide plate 103 to be removed from the housing 101, it requires the arrangement of stress points on the guide plate 103 for fixing it to the cable, which can easily damage the guide plate 103. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a turbine guide vane disassembly device. To achieve the above objectives, this utility model adopts the following technical solution: A device for dismantling guide vanes of a water turbine, the water turbine including a casing and a body selectively connected to the casing. The shell is designed as a hollow annular structure, and guide tiles are provided along its contour on the radially inner side of the shell. The body also has fixing holes coaxial with the shell. The device includes an ejection mechanism that abuts against the guide tile, a drive mechanism connected to the ejection mechanism and allowing the ejection mechanism to move, and a force output mechanism connected to the drive mechanism and capable of activating the drive mechanism. The ejection mechanism includes a disc body, which is disposed on the disc body and extends to the abutment portion on the guide plate. The drive mechanism is disposed on the disc body and allows the drive disc body to move axially, thereby driving the abutment portion to actuate the guide plate.

[0006] Furthermore, the device also includes a fixing mechanism that is fixedly mounted on the fixing hole in a relatively fixed manner, and the ejection mechanism also includes a connecting shaft extending toward the fixing mechanism, the connecting shaft passing through the fixing mechanism and allowing movement away from the guide tile, so that the ejection mechanism and the guide tile are stably abutted against each other.

[0007] Furthermore, four abutment parts are provided and distributed in pairs opposite each other, such that two adjacent abutment parts are perpendicular to each other, so that the ejection mechanism can apply force to the guide tile evenly.

[0008] Furthermore, the abutment includes a connecting arm and a boss disposed at the free end of the connecting arm and extending radially outward, the end face of the connecting arm being configured to allow it to abut against the guide tile, such that the boss restricts the axial outward movement of the guide tile.

[0009] Furthermore, the ejection mechanism also includes a reinforcing part disposed on the disc body and the abutment part and extending obliquely toward the fixing mechanism to strengthen the connection between the disc body and the abutment part.

[0010] Furthermore, the ejection mechanism also includes a connecting plate, on which the connecting shaft is disposed, and the connecting shaft, connecting plate, plate body, and drive mechanism are arranged coaxially so that the force from the drive mechanism can be transmitted in a straight line.

[0011] Furthermore, the fixing mechanism includes a fixing block disposed in a fixing hole and abutting against the body, and a limiting block connected to the fixing block and extending radially outward, the limiting block being configured to abut against the body to restrict the movement of the fixing block toward the ejection mechanism.

[0012] Furthermore, a through hole is provided along the axial direction on the fixed block, which is used to form a channel through which the connecting shaft passes. A threaded fastener is also provided at the end of the connecting shaft in a threaded manner, and the radial distance of the threaded fastener is greater than that of the through hole, so as to restrict the movement of the connecting shaft toward the ejection mechanism.

[0013] Furthermore, the drive mechanism is configured as a reciprocating hydraulic cylinder, and the force output mechanism is connected to the hydraulic cylinder through a pipeline, allowing the force output mechanism to supply fluid toward the hydraulic cylinder to control the reciprocating motion of the drive mechanism.

[0014] Furthermore, lifting rings are provided on the ejection mechanism and the fixing mechanism. The lifting rings are configured to allow them to be fixed together with the lifting equipment for transporting the ejection mechanism and the fixing mechanism.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention includes an ejection mechanism that abuts against the guide plate, a drive mechanism connected to the ejection mechanism and allowing it to move, and a force output mechanism connected to the drive mechanism and capable of activating it. The ejection mechanism includes a disc body, an abutment portion extending onto the guide plate, and the drive mechanism mounted on the disc body, allowing the disc body to move axially to drive the abutment portion and actuate the guide plate. This configuration allows the guide plate to move by abutting against it, thus avoiding the risk of damage to the guide plate due to stress points on it. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of the turbine guide vane disassembly device and the turbine working together in an embodiment of this utility model; Figure 2 This is a schematic diagram of the overall structure of the turbine guide vane disassembly device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the overall structure of the fixing mechanism in an embodiment of this utility model.

[0017] In the above figures: turbine 10, shell 101, body 102, guide vane 103, fixing hole 104, turbine guide vane disassembly device 100, ejection mechanism 1, disc 11, abutment part 12, connecting arm 121, boss 122, connecting shaft 13, threaded fastener 131, reinforcing part 14, connecting disc 15, drive mechanism 2, fixing mechanism 3, fixing block 31, through hole 311, limit block 32. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0019] To better understand the purpose, structure, and function of this utility model, the following detailed description of a turbine guide vane disassembly device is provided in conjunction with the accompanying drawings.

[0020] like Figure 1 As shown, the turbine 10 includes a housing 101 and a body 102 selectively fixed to the housing 101. The housing 101 is configured as a hollow, annular structure. In the illustrated embodiment, guide vanes 103 are located radially inside the housing 101 and are evenly distributed along its contour. Furthermore, fixing holes 104 are provided on the body 102, the fixing holes 104 being coaxial with the housing 101. It should be noted that the remaining auxiliary structures of the turbine 10 and the connections between them are well known to those skilled in the art. Therefore, they will not be described in detail here.

[0021] Figure 1 , 2 The schematic diagram illustrates the overall structure of the turbine guide vane disassembly device according to this utility model. In such a way... Figure 1 In the illustrated embodiment, the turbine guide vane removal device 100 includes an ejection mechanism 1 configured to allow it to abut against the guide vane 103. The device 100 also includes a drive mechanism 2 disposed on the ejection mechanism 1 and allowing it to push the ejection mechanism 1 axially. Furthermore, it includes a force output mechanism (not shown) configured to connect to the drive mechanism 2 and allow a force to be applied to the drive mechanism 2, causing it to push the ejection mechanism 1 axially.

[0022] In this configuration, when the guide tile 103 needs to be disassembled using this device 100, the ejection mechanism 1 and the guide tile 103 are first brought into contact with each other, and a drive mechanism 2 is installed on the ejection mechanism 1. Simultaneously, the drive mechanism 2 and the force output mechanism are connected together, allowing the force output mechanism to apply force to the drive mechanism 2 in a selectable manner. This completes the arrangement of the device 100.

[0023] At this time, the force output mechanism is activated, and it continuously outputs force to the drive mechanism 2. During this process, the force drives the drive mechanism 2 to move axially, thereby causing the ejector mechanism 1 connected to the drive mechanism 2 to move synchronously. This causes the ejector mechanism 1 to actuate the guide tile 103 until the guide tile disengages from the housing 101. Thus, the guide tile 103 is removed from the housing 101.

[0024] In this embodiment, as Figure 2 As shown, the ejection mechanism 1 includes a disc 11, which is disposed on the disc 11 and extends to an abutment portion 12 on the guide plate 103. Simultaneously, a drive mechanism 2 is disposed on the disc 11 and allows the disc 11 to move axially. In this way, the disc 11 can drive the abutment portion 12 to actuate the guide plate 103 during movement. It should be noted that the abutment portion 12 is configured as a rod-shaped structure. This reduces the mass of the ejection mechanism 1.

[0025] In one embodiment, such as Figure 2As shown, the device 100 also includes a fixing mechanism 3, which is fixedly disposed in the fixing hole 104. Simultaneously, the ejection mechanism 1 also includes a connecting shaft 13 extending toward the fixing mechanism 3. The connecting shaft 13 passes through the fixing mechanism 3 and allows movement away from the guide tile 103. Specifically, the movement of the connecting shaft 13 toward the guide tile 103 is restricted. In this way, the ejection mechanism 1 can stably abut against the guide tile 103, thereby preventing the ejection mechanism 1 from detaching from the guide tile 103.

[0026] In the illustrated embodiment, such as Figure 2 As shown, four abutment portions 12 are provided and distributed in pairs opposite each other. This increases the contact area between the ejector mechanism 1 and the guide tile 103, thereby enabling stable movement of the guide tile 103 when a force is applied to it. Preferably, adjacent abutment portions 12 are configured to be perpendicular to each other. This allows the ejector mechanism 1 to apply a uniform force to the guide tile 103, further stabilizing its movement.

[0027] In one embodiment, such as Figure 2 As shown, the abutment portion 12 includes a connecting arm 121 and a boss 122 disposed at the free end of the connecting arm 121 and extending radially outward. In this embodiment, the end face of the connecting arm 121 is configured to allow it to abut against the radially inner side of the guide tile 103. In this way, the boss 122 can abut against the side of the guide tile 103, thereby enabling the ejection mechanism 1 to stably actuate the guide tile 103.

[0028] In one embodiment, such as Figure 2 As shown, the ejection mechanism 1 also includes a reinforcing part 14, which is disposed on the disc body 11 and the abutment part 12 and extends obliquely toward the fixing mechanism 3. Specifically, the reinforcing part 14 is configured as a trapezoidal plate structure. In this way, the disc body 11 and the abutment part 12 can be stably connected together.

[0029] According to a preferred embodiment of the present invention, such as Figure 2 As shown, a connecting plate 15 is also provided on the end face of the reinforcing part 14, and the connecting shaft 13 is disposed on the connecting plate 15 and fixed to it. Meanwhile, the connecting shaft 13, connecting plate 15, plate body 11, and drive mechanism 2 are arranged coaxially. This arrangement allows the force from the drive mechanism 2 to be transmitted along a straight line, thereby improving the efficiency of force transmission and reducing energy loss.

[0030] In one embodiment, such as Figure 2 , 3As shown, the fixing mechanism 3 includes a fixing block 31, which is disposed in the fixing hole 104 and abuts against the body 102. A radially outwardly extending limiting block 32 is also provided on the fixing block 31, the radial distance of which is greater than that of the fixing block 31. In this way, when the limiting block 32 and the body 102 abut against each other, the limiting block 32 can restrict the movement of the fixing block 31 toward the ejection mechanism 1. Therefore, the fixing mechanism 3 can be stably disposed on the body 102 and support the ejection mechanism 1.

[0031] According to a preferred embodiment of the present invention, such as Figure 2 , 3 As shown, a through hole 311 is also provided along the axial direction on the fixing block 31, which forms a channel through which the connecting shaft 13 passes. Simultaneously, a threaded fastener 131 is provided at the end of the connecting shaft 13 in a threaded engagement manner, with the radial distance of the threaded fastener 131 being greater than that of the through hole 311. In this way, the threaded fastener 131 can restrict the movement of the connecting shaft 13 toward the ejector mechanism 1, thereby ensuring a stable connection between the ejector mechanism 1 and the fixing mechanism 3. Furthermore, it allows the connecting shaft 13 to move synchronously along the through hole 311 during the movement of the ejector mechanism 1 and the guide plate 103, thus enabling the removal of the guide plate 103.

[0032] According to a preferred embodiment of the present invention, such as Figure 2 As shown, the drive mechanism 2 is configured as a reciprocating hydraulic cylinder. Simultaneously, the force output mechanism is configured to allow fluid to be supplied to or discharged from the hydraulic cylinder. In this way, the force output mechanism 3 can control the reciprocating motion of the drive mechanism 2. This achieves the reciprocating motion of the ejector mechanism 1, thereby enabling the disassembly of the guide plate 103 or the movement of the ejector mechanism 1 out of the housing 101. It should be noted that the structure of the hydraulic cylinder, the force output mechanism, the connection relationships of their components, and the drive method are all well-known to those skilled in the art. Therefore, they will not be described in detail here.

[0033] In one embodiment, such as Figure 2 As shown, a lifting ring (not shown in the figure) is also provided on the ejection mechanism 1 and the fixing mechanism 3. The lifting ring is configured to allow it to be fixed relative to the lifting equipment (not shown in the figure), so that the lifting equipment can apply force to the ejection mechanism 1 and the fixing mechanism 3 respectively, thereby realizing the operation of abutting the ejection mechanism 1 and the guide tile 103 together and abutting the fixing mechanism 3 and the body 102 together.

[0034] The operation of the turbine guide vane disassembly device 100 according to this utility model is as follows.

[0035] First, the lifting equipment (not shown in the figure) and the lifting ring (not shown in the figure) are connected together, and the lifting equipment continuously applies force to the lifting ring until the ejection mechanism 1 is located on the housing 101 and abuts against the guide plate 103, while the fixing mechanism 3 is located in the fixing hole 104 and abuts against the body 102. At this time, the connecting shaft 13 is inserted into the through hole 311, and a threaded fastener 131 is provided at the end of the connecting shaft 13, so that the threaded fastener 131 abuts against the limiting block 32. At the same time, the drive mechanism 2 is provided on the disc 11, and the drive mechanism 2 and the force output part 3 are interconnected. Thus, the device 100 is set up.

[0036] Then, the force output unit 3 is activated, and the force output unit 3 continuously outputs fluid toward the drive mechanism 2. During this process, as the fluid continues to enter the drive mechanism 2, the drive mechanism 2 will continuously move along the axial direction, and drive the abutment part 12 to move synchronously, thereby causing the guide plate 103 and the connecting shaft 13 to move synchronously until the guide plate 103 and the housing 101 are separated from each other, thereby realizing the disassembly of the guide plate 103.

[0037] Finally, it should be noted that 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 preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A turbine guide vane removal device, wherein the turbine (10) includes a housing (101) and a body (102) selectively connected to the housing (101). in, The housing (101) is configured as an annular hollow structure, and a guide tile (103) is provided along its contour on the radial inner side of the housing (101). A fixing hole (104) coaxial with the housing (101) is also provided on the body (102). The device (100) is characterized by comprising an ejection mechanism (1) that abuts against the guide tile (103), a drive mechanism (2) connected to the ejection mechanism (1) and allowing the ejection mechanism (1) to move, and a force output mechanism connected to the drive mechanism (2) and capable of activating the drive mechanism (2). The ejection mechanism (1) includes a disc body (11), which is disposed on the disc body (11) and extends to the abutment portion (12) on the guide tile (103). The drive mechanism (2) is disposed on the disc body (11) and allows the drive disc body (11) to move along the axial direction so as to drive the abutment portion (12) to actuate the guide tile (103).

2. The turbine guide vane disassembly device according to claim 1, characterized in that, The device (100) also includes a fixing mechanism (3) that is fixed in a relatively fixed manner on the fixing hole (104), and the ejection mechanism (1) also includes a connecting shaft (13) extending toward the fixing mechanism (3), the connecting shaft (13) passing through the fixing mechanism (3) and allowing movement in a direction away from the guide tile (103) so that the ejection mechanism (1) and the guide tile (103) are stably abutted against each other.

3. The turbine guide vane disassembly device according to claim 2, characterized in that, The abutting parts (12) are arranged in four pairs and distributed in a pairwise manner, such that two adjacent abutting parts (12) are perpendicular to each other, so that the ejection mechanism (1) can apply force to the guide tile (103) evenly.

4. The turbine guide vane disassembly device according to claim 3, characterized in that, The abutment (12) includes a connecting arm (121) and a boss (122) provided at the free end of the connecting arm (121) and extending radially outward. The end face of the connecting arm (121) is configured to allow it to abut against the guide tile (103) so that the boss (122) restricts the axial outward movement of the guide tile (103).

5. The turbine guide vane disassembly device according to claim 4, characterized in that, The ejection mechanism (1) also includes a reinforcing part (14) disposed on the disc body (11) and the abutment part (12) and extending obliquely toward the fixing mechanism (3) to strengthen the connection between the disc body (11) and the abutment part (12).

6. The turbine guide vane disassembly device according to claim 5, characterized in that, The ejection mechanism (1) also includes a connecting disk (15), the connecting shaft (13) is disposed on the connecting disk (15), and the connecting shaft (13), the connecting disk (15), the disk body (11), and the drive mechanism (2) are arranged in a coaxial manner so that the force from the drive mechanism (2) can be transmitted in a straight line.

7. The turbine guide vane disassembly device according to claim 2, characterized in that, The fixing mechanism (3) includes a fixing block (31) disposed in a fixing hole (104) and abutting against the body (102), and a limiting block (32) connected to the fixing block (31) and extending radially outward, the limiting block (32) being configured to abut against the body (102) to limit the movement of the fixing block (31) toward the ejection mechanism (1).

8. The turbine guide vane disassembly device according to claim 7, characterized in that, A through hole (311) is also provided along the axial direction on the fixed block (31), the through hole (311) is used to form a channel through which the connecting shaft (13) passes, and a threaded fastener (131) is provided at the end of the connecting shaft (13) in a threaded manner, and the radial distance of the threaded fastener (131) is greater than that of the through hole (311) to restrict the movement of the connecting shaft (13) toward the ejection mechanism (1).

9. The turbine guide vane disassembly device according to claim 1, characterized in that, The drive mechanism (2) is configured as a hydraulic cylinder capable of reciprocating motion. The force output mechanism is connected to the hydraulic cylinder through a pipe, and the force output mechanism is allowed to supply fluid toward the hydraulic cylinder to control the reciprocating motion of the drive mechanism (2).

10. The turbine guide vane disassembly device according to claim 2, characterized in that, Lifting rings are also provided on the ejection mechanism (1) and the fixing mechanism (3). The lifting rings are configured to allow them to be fixed together with the lifting equipment for conveying the ejection mechanism (1) and the fixing mechanism (3).

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