A device for mounting a steam turbine

Abstract

The utility model discloses a device for installing steam turbine specifically related to steam turbine technical field, including bottom plate, its characterized in that: bottom plate upper end left side and right side all are equipped with two chutes, bottom plate upper end middle part fixedly connected with support subassembly, and the cavity of both sides two chute all are common sliding connection with fixed plate, and the opposite surface between two fixed plate all are common fixed connection with clamping mechanism, and one end of two fixed plate away from each other all are fixedly connected with transmission subassembly. The utility model discloses a device for installing steam turbine, the utility model in the using process, through the clamping mechanism of setting can adapt to the steam turbine rotor of different length specifications, can realize stable clamping through this structure, need not to customize special fixture for specific size rotor, effectively solve the problem that traditional fixed device is poor in adaptability, greatly expands the application range of device.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine installation technology, and in particular to a device for installing steam turbines. Background Technology

[0002] Steam turbines are crucial power machinery in modern industry, widely used in power generation, chemical industry, shipbuilding, and many other fields. During the installation process, the turbine rotor is a critical step, as its installation quality directly affects the turbine's operational performance, stability, and service life.

[0003] Currently, most of the devices used to secure turbine rotors during turbine installation have relatively fixed structures and lack flexibility. Different models and specifications of turbines have significantly different rotor lengths. Existing securing devices are often only suitable for rotors within a specific length range. When encountering rotors exceeding the design length, it is necessary to replace them with securing devices of different specifications. This not only increases installation costs but also reduces installation efficiency. During the installation of a steam turbine rotor, it is often necessary to rotate the rotor to inspect, adjust, and install various parts of it. However, most existing fixing devices can only achieve simple fixing of the rotor and cannot provide convenience or support for the rotor's rotation during the fixing process.

[0004] Therefore, a device for installing steam turbines is needed. Utility Model Content

[0005] The main objective of this invention is to provide a device for installing a steam turbine, which can effectively solve the problems in the background art.

[0006] The main objective of this invention is to provide a device for installing a steam turbine, which can effectively solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A device for installing a steam turbine includes a base plate, characterized in that: two sliding grooves are provided on the left and right sides of the upper end of the base plate; a support assembly is fixedly connected to the middle of the upper end of the base plate; a fixing plate is slidably connected to the inner cavity of the two sliding grooves on the same side; a clamping mechanism is fixedly connected between the opposite surfaces of the two fixing plates; and a transmission assembly is fixedly connected to the ends of the two fixing plates that are far apart from each other.

[0008] Preferably, the clamping mechanism includes several support plates, which are respectively fixedly connected to the front and rear sides of the opposite surfaces of two fixed plates. A support column is fixedly connected to the lower middle part of the opposite surfaces of two support plates on the same side. A spring is fixedly connected to the upper end of each of the two support columns. A pressure block is fixedly connected to the upper end of each of the two springs. A rubber wheel is rotatably connected to the middle of the upper end of each of the two pressure blocks. A fixing block is fixedly connected to the upper part of the two support plates on the same side that are close to each other. A rubber wheel is rotatably connected to the upper part of the several clamping plates.

[0009] Preferably, both of the pressure blocks are trapezoidal in shape, and the plurality of clamping plates are arc-shaped.

[0010] Preferably, the transmission assembly includes a plurality of pulleys and two tensioning assemblies. The plurality of pulleys are respectively fixedly connected to the ends of the two fixed plates that are far apart from each other. The outer surfaces of the plurality of pulleys on the left and the outer surfaces of the plurality of pulleys on the right are all wound with a belt. The two tensioning assemblies are respectively opened on the upper front part of the ends of the two fixed plates that are far apart from each other. A support block is fixedly connected to the upper part of the middle part of the ends of the two fixed plates that are far apart from each other. A motor is fixedly connected to the upper end of each of the two support blocks.

[0011] Preferably, the two pulleys located on the upper left and right sides are respectively fixedly connected to the ends of the two rubber wheels located on the left and the two rubber wheels located on the right that are far apart from each other, and the output ends of the two motors are fixedly connected to the ends of the two pulleys located on the lower side that are far apart from each other via couplings.

[0012] Preferably, the tensioning assembly includes two grooves, which are respectively opened on the upper front part of the two fixed plates at their opposite ends. The rear walls of the inner cavities of the two grooves are fixedly connected to springs, and the front ends of the two springs are fixedly connected to sliders. The two pulleys located on the front side are rotatably connected to the opposite ends of the two sliders at their opposite ends.

[0013] Preferably, the support assembly includes a fixed column, which is fixedly connected to the middle of the upper part of the base plate. A spring is fixedly connected to the bottom wall of the inner cavity of the fixed column. A limit block is fixedly connected to the upper end of the spring. An arc-shaped block is fixedly connected to the upper end of the limit block. Several rotating rollers are rotatably connected to the inner surface of the arc-shaped block at intervals.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In use, the clamping mechanism of this utility model can adapt to turbine rotors of different lengths and specifications. It can achieve stable clamping through this structure, without the need to customize special clamps for rotors of specific sizes. This effectively solves the problem of poor adaptability of traditional fixing devices and greatly expands the application range of the device.

[0015] 2. During use, the transmission components of this utility model can rotate the rotor in the clamp, allowing the operator to easily rotate the rotor and conduct detailed inspections of all parts. Especially in multi-angle operation scenarios such as blade installation, it can greatly simplify the operation steps and reduce labor intensity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the clamping mechanism of this utility model; Figure 3 This is a schematic cross-sectional view of the transmission component of this utility model. Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic cross-sectional view of the support component of this utility model; Figure 6 This is a schematic diagram of the overall structure of this utility model from another perspective.

[0017] In the diagram: 1. Base plate; 2. Slide groove; 3. Support assembly; 31. Fixed column; 32. Limiting block; 33. Spring three; 34. Arc block; 35. Rotating roller; 4. Fixed plate; 5. Clamping mechanism; 51. Support plate; 52. Support column; 53. Fixed block; 54. Clamping plate; 55. Rubber wheel one; 56. Spring one; 57. Pressure block; 58. Rubber wheel two; 6. Transmission assembly; 61. Support block; 62. Pulley; 63. Belt one; 64. Tensioning assembly; 641. Groove; 642. Spring two; 643. Slider; 65. Motor. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Example 1, as Figures 1 to 6 As shown, a device for installing a steam turbine includes a base plate 1. Two sliding grooves 2 are formed on the left and right sides of the upper end of the base plate 1. A support component 3 is fixedly connected to the middle of the upper end of the base plate 1. Fixed plates 4 are slidably connected to the inner cavities of the two sliding grooves 2 on the same side. Clamping mechanisms 5 are fixedly connected between the opposite surfaces of the two fixed plates 4. Transmission components 6 are fixedly connected to the ends of the two fixed plates 4 that are far apart from each other.

[0020] In the specific implementation process of this utility model, the steam turbine is first hoisted onto the base plate 1 using a crane. Then, according to the length of the steam turbine, the two fixing plates 4 are pushed into the inner cavity of the slide groove 2 and adjusted to a suitable length. Then, the front and rear shafts of the steam turbine are directly lowered into the inner cavity of the clamping mechanism 5 using the crane. Under the action of the internal structure of the clamping mechanism 5, the steam turbine rotor is clamped inside the clamping mechanism 5 under its own weight. Then, the steam turbine rotor blades are installed by the workers. When it is necessary to change the angle of the rotor installation, the internal drive structure of the two transmission components 6 is activated simultaneously to drive the internal structure of the transmission components 6 to run. Then, the internal structure of the transmission components 6 can drive the rotor to rotate during the clamping process, so that the workers can install the rotor blades without the aid of auxiliary tools. Under the action of the internal structure of the support component 3, the rotor can be supported while rotating, ensuring the stability of the rotor during the rotation process.

[0021] Example 2: In order to achieve the purpose of clamping and fixing the turbine rotor, refer to... Figure 2 In this scheme, the clamping mechanism 5 includes several support plates 51, which are respectively fixedly connected to the front and rear sides of the opposite faces of two fixed plates 4. Support columns 52 are fixedly connected to the lower middle part of the opposite faces of the two support plates 51 on the same side. Springs 56 are fixedly connected to the upper ends of the two support columns 52. Pressure blocks 57 are fixedly connected to the upper ends of the two springs 56. Rubber wheels 58 are rotatably connected to the middle of the upper ends of the two pressure blocks 57. Fixing blocks 53 are fixedly connected to the upper parts of the two support plates 51 on the same side that are close to each other. Rubber wheels 55 are rotatably connected to the upper parts of several clamping plates 54.

[0022] Furthermore, both of the pressure blocks 57 are trapezoidal in shape, and the clamping plates 54 are arc-shaped.

[0023] In the above process, the rotor shafts on both sides are placed between two rubber wheels 55 on the same side by a crane. Then, the rotor's own weight presses down on the rubber wheel 58, causing the rubber wheel 58 to push the pressure block 57 downward. The inclined surface of the pressure block 57 then presses against the lower side of the two clamping plates 54, causing the two pressure blocks 57 to rotate around the axis of the fixed block 53 on the same side. This causes the two rubber wheels 55 on the upper side to rotate around the axis of the fixed block 53, clamping the shafts on both sides of the rotor, thereby achieving the purpose of fixing and clamping.

[0024] Specifically, in order to achieve the goal of rotating the rotor during the clamping process, refer to Figure 3In this scheme, the transmission component 6 includes a plurality of pulleys 62 and two tensioning components 64. The plurality of pulleys 62 are respectively fixedly connected to the two fixed plates 4 at opposite ends. The outer surfaces of the plurality of pulleys 62 on the left and the plurality of pulleys 62 on the right are all wound with a belt 63. The two tensioning components 64 are respectively opened at the upper front part of the opposite ends of the two fixed plates 4. A support block 61 is fixedly connected to the upper middle part of the opposite ends of the two fixed plates 4. A motor 65 is fixedly connected to the upper end of each of the two support blocks 61.

[0025] Furthermore, the two pulleys 62 located on the upper left and right sides are respectively fixedly connected to the ends of the two rubber wheels 55 located on the left and the two rubber wheels 55 located on the right that are far apart from each other. The output ends of the two motors 65 are fixedly connected to the ends of the two pulleys 62 located on the lower side that are far apart from each other through couplings.

[0026] In the above process, the rotor presses down to bring the two rubber wheels 55 on the same side closer together, which in turn causes the two rubber wheels 55 to drive the two upper pulleys 62 to move closer together. At the same time, under the action of the tensioning component 64, the tension of the belt 63 wrapped around the surface of the pulleys 62 remains unchanged as the two pulleys 62 move closer together, and it will not loosen due to the displacement of the two pulleys 62. Then, the two motors 65 are started at the same time, causing the two lower pulleys 62 to rotate. Under the action of the belt 63, the pulleys 62 rotate simultaneously, which in turn causes the two upper pulleys 62 to rotate in the same direction. Under the action of the friction between the surfaces of the two rubber wheels 55 and the rotor, the rotor rotates.

[0027] The specific installation method, circuit connection method, and control method of the motor 65 used above are all conventional designs, and will not be described in detail in this utility model.

[0028] Specifically, in order to ensure the tension of belt 63, refer to Figure 4 In this solution, the tensioning component 64 includes two grooves 641. The two grooves 641 are respectively opened on the upper front part of the two fixed plates 4 at the opposite ends. The rear wall of the inner cavity of the two grooves 641 is fixedly connected to the second spring 642. The front end of the two second springs 642 is fixedly connected to the slider 643. The two pulleys 62 located on the front side are rotatably connected to the opposite ends of the two sliders 643 at the opposite ends.

[0029] In the above, as the two upper pulleys 62 approach each other, the distance between the belt 63 wrapped around the surface of the pulleys 62 decreases. At the same time, under the action of the spring 642, the slider 643 is pushed forward in the inner cavity of the groove 641, which in turn drives the foremost pulley 62 to move forward to make up for the reduced distance between the two upper pulleys 62, thereby ensuring the tension.

[0030] Specifically, in order to achieve the purpose of supporting the rotor during the clamping and rotation process, refer to Figure 5 In this solution, the support component 3 includes a fixed column 31, which is fixedly connected to the upper middle part of the base plate 1. A spring 33 is fixedly connected to the bottom wall of the inner cavity of the fixed column 31. A limit block 32 is fixedly connected to the upper end of the spring 33. An arc-shaped block 34 is fixedly connected to the upper end of the limit block 32. Several rotating rollers 35 are rotatably connected to the inner surface of the arc-shaped block 34 at intervals.

[0031] In the above process, the rotor's central shaft is placed on the surface of the rotating roller 35, causing the rotating roller 35 to press down on the limiting block 32 and squeeze the spring 33. This causes the limiting block 32 to slide within the cavity of the fixed column 31, thereby ensuring the support force for the rotor. Then, as the rotor rotates, several rotating rollers 35 come into contact with the rotor shaft axis, and under the action of friction, the rotating rollers 35 rotate simultaneously, ensuring that the rotor is supported without hindering its rotation.

[0032] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for mounting a steam turbine, comprising a base plate (1), characterized in that: Two sliding grooves (2) are opened on the left and right sides of the upper end of the base plate (1). A support component (3) is fixedly connected to the middle of the upper end of the base plate (1). The inner cavities of the two sliding grooves (2) on the same side are slidably connected to a fixing plate (4). A clamping mechanism (5) is fixedly connected between the opposite surfaces of the two fixing plates (4). A transmission component (6) is fixedly connected to the ends of the two fixing plates (4) that are far apart from each other.

2. The device for installing a steam turbine according to claim 1, characterized in that: The clamping mechanism (5) includes several support plates (51), which are fixedly connected to the front and rear sides of the opposite surfaces of two fixed plates (4). Support columns (52) are fixedly connected to the lower middle part of the opposite surfaces of the two support plates (51) on the same side. Springs (56) are fixedly connected to the upper ends of the two support columns (52). Pressure blocks (57) are fixedly connected to the upper ends of the two springs (56). Rubber wheels (58) are rotatably connected to the middle upper ends of the two pressure blocks (57). Fixing blocks (53) are fixedly connected to the upper parts of the two support plates (51) on the same side that are close to each other. Rubber wheels (55) are rotatably connected to the upper parts of several clamping plates (54).

3. The device for installing a steam turbine according to claim 2, characterized in that: Both of the pressure blocks (57) are trapezoidal in shape, and the clamps (54) are arc-shaped.

4. The device for installing a steam turbine according to claim 2, characterized in that: The transmission assembly (6) includes several pulleys (62) and two tensioning assemblies (64). The several pulleys (62) are respectively fixedly connected to the two fixed plates (4) at opposite ends. The outer surfaces of the several pulleys (62) on the left and the several pulleys (62) on the right are all wound with a belt (63). The two tensioning assemblies (64) are respectively opened at the upper front part of the opposite ends of the two fixed plates (4). A support block (61) is fixedly connected to the upper part of the middle part of the opposite ends of the two fixed plates (4). A motor (65) is fixedly connected to the upper end of each of the two support blocks (61).

5. The device for installing a steam turbine according to claim 4, characterized in that: The two pulleys (62) located on the upper left and right sides are respectively fixedly connected to the ends of the two rubber wheels (55) located on the left and the two rubber wheels (55) located on the right, which are far apart from each other. The output ends of the two motors (65) are fixedly connected to the ends of the two pulleys (62) located on the lower side, which are far apart from each other, through couplings.

6. The apparatus for installing a steam turbine according to claim 4, characterized in that: The tensioning assembly (64) includes two grooves (641). The two grooves (641) are respectively opened on the upper front part of the two fixed plates (4) at the opposite ends. The rear wall of the inner cavity of the two grooves (641) is fixedly connected to a second spring (642). The front end of the two second springs (642) is fixedly connected to a slider (643). The two pulleys (62) located on the front side are rotatably connected to the opposite ends of the two sliders (643) at the opposite ends.

7. The device for installing a steam turbine according to claim 1, characterized in that: The support assembly (3) includes a fixed column (31), which is fixedly connected to the middle of the upper end of the base plate (1). A spring (33) is fixedly connected to the bottom wall of the inner cavity of the fixed column (31). A limit block (32) is fixedly connected to the upper end of the spring (33). An arc block (34) is fixedly connected to the upper end of the limit block (32). Several rotating rollers (35) are rotatably connected to the inner surface of the arc block (34) at intervals.

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