Auxiliary overhauling device for air cylinder of steam turbine for thermal power plant

Abstract

The invention discloses an auxiliary maintenance device for an air cylinder of a steam turbine for a thermal power plant. The clamp assemblies are used for clamping the air cylinder and can drive the air cylinder to rotate around the axis of the air cylinder, one clamp assembly is fixedly connected with the supporting assembly, and the other clamp assembly can slide in the extending direction of the supporting assembly; and the auxiliary cleaning assembly is installed on the supporting assembly, can move in the extending direction of the supporting assembly and is used for cleaning the air cylinder clamped by the clamp assembly. The air cylinder is clamped by the clamp assembly and is driven to rotate around the axis of the air cylinder, so that the outer surface of the air cylinder is overhauled in the rotating process of the air cylinder. The auxiliary cleaning assembly is used for cleaning the outer surface of the air cylinder, the cleanliness of the surface of the air cylinder is improved, and therefore the maintenance efficiency of the air cylinder is improved.

Description

Technical Field

[0001] The invention relates to the technical field of maintenance of thermal power plants, and in particular to an auxiliary maintenance device for a cylinder of a steam turbine used in a thermal power plant. Background Art

[0002] At present, thermal power plants mainly use steam turbines for power generation, and the cylinder is one of the important components in the steam turbine to achieve this energy conversion.

[0003] In a steam turbine, the cylinder plays the role of converting high-temperature and high-pressure gas into mechanical energy, similar to the role of the cylinder in an internal combustion engine.

[0004] In order to ensure the normal operation of the cylinder, the cylinder needs to be inspected and cleaned externally. During the inspection and cleaning process, the cylinder needs to be turned over to complete the overall external inspection of the cylinder. However, during the inspection of a cylinder with a relatively large size and weight, turning the cylinder over is very inconvenient, greatly wastes the operator's labor intensity, and leads to low maintenance efficiency.

[0005] Therefore, how to provide an auxiliary maintenance device for the cylinder of a steam turbine used in a thermal power plant to reduce the labor intensity of cylinder maintenance and improve the efficiency of cylinder maintenance is a technical problem that needs to be solved urgently by technical personnel in this field. Summary of the invention

[0006] In view of this, the present invention provides an auxiliary maintenance device for the cylinder of a steam turbine used in a thermal power plant, which reduces the labor intensity of cylinder maintenance and improves the efficiency of cylinder maintenance.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An auxiliary maintenance device for a cylinder of a steam turbine used in a thermal power plant, comprising:

[0009] Support components;

[0010] A clamp assembly, the clamp assembly is used to clamp the cylinder and can drive the cylinder to rotate around the axis of the cylinder, and the clamp assembly is at least two, one of the clamp assemblies is fixedly connected to the support assembly, and the other can slide along the extension direction of the support assembly;

[0011] An auxiliary cleaning component is installed on the supporting component and can move along the extending direction of the supporting component. The auxiliary cleaning component is used to clean the cylinder clamped by the clamping component.

[0012] Preferably, in the above-mentioned auxiliary maintenance device for the cylinder, the support assembly comprises:

[0013] substrate;

[0014] A first track plate, the first track plate is fixed on the base plate, and the first track plate has a track arranged along an extension direction of the support assembly;

[0015] a second track plate, the second track plate being fixed on the base plate, the second track plate having a track arranged along the extension direction of the support assembly, and the track of the first track plate and the track of the second track plate being parallel and arranged along the first direction; the clamp assembly in the clamp assembly sliding along the extension direction of the support assembly slidingly cooperates with the track of the first track plate and the track of the second track plate;

[0016] The first direction is perpendicular to an extension direction of the supporting assembly.

[0017] Preferably, in the above-mentioned auxiliary maintenance device for the cylinder, the clamp assembly comprises:

[0018] Support plate;

[0019] A bearing seat, the bearing seat is movably mounted on the support plate, and there are at least two bearing seats arranged along the first direction;

[0020] A supporting wheel is rotatably mounted on the bearing seat, and a rotation plane of the supporting wheel is parallel to the first direction. The supporting wheels of the two bearing seats arranged along the first direction are used for clamping the cylinder.

[0021] Preferably, in the above-mentioned auxiliary maintenance device for the cylinder, the support plate of the clamp assembly fixedly connected to the support assembly in the clamp assembly is fixed on the base plate;

[0022] The support plate of the clamp assembly slidably connected to the support assembly in the clamp assembly is slidably matched with the track of the first track plate and the track of the second track plate.

[0023] Preferably, in the above-mentioned auxiliary maintenance device for the cylinder, the auxiliary cleaning component comprises:

[0024] A cleaning device, the cleaning device is used to contact with the cylinder and clean the cylinder;

[0025] A lateral adjustment device, the cleaning device is mounted on the lateral adjustment device, and the lateral adjustment device can move along the extension direction of the support assembly.

[0026] Preferably, in the above-mentioned auxiliary maintenance device for the cylinder, the lateral adjustment device comprises:

[0027] A spiral screw, the spiral screw is rotatably mounted on the support assembly, and the axial direction of the spiral screw is arranged along the extension direction of the support assembly;

[0028] A guide rod, the guide rod is fixed on the support assembly, and the guide rod is arranged parallel to the spiral screw;

[0029] A transmission seat, the transmission seat is threadedly connected to the spiral screw and slidably connected to the guide rod, and the cleaning device is fixed to the transmission seat;

[0030] A drive transmission device drives the spiral screw to rotate.

[0031] Preferably, in the above-mentioned auxiliary maintenance device for the cylinder, the driving transmission device comprises:

[0032] A driving motor, wherein the driving motor is fixed on the supporting assembly;

[0033] A driving wheel, the driving wheel is drivingly connected to the driving motor;

[0034] A driven wheel is connected to the screw shaft in driving connection, and the driving wheel is connected to the driven wheel in driving connection, the driving wheel and the driven wheel are arranged along a height direction, and the height direction is perpendicular to the plane where the support assembly is located.

[0035] Preferably, in the above-mentioned auxiliary maintenance device for the cylinder, the lateral adjustment device comprises:

[0036] A mounting frame, the mounting frame is fixedly connected to the transmission seat;

[0037] A rotating arm, wherein the middle position of the rotating arm is hinged to the mounting frame;

[0038] A hydraulic cylinder, one end of which is hinged to the mounting frame, and the other end of which is hinged to one end of the rotating arm;

[0039] A connecting assembly, the connecting assembly being hinged to the other end of the rotating arm;

[0040] A cleaning member is installed at one end of the connecting assembly close to the supporting assembly.

[0041] Preferably, in the above-mentioned auxiliary maintenance device for the cylinder, the connecting assembly comprises:

[0042] A slide bar, the slide bar having a connection seat movable along the axis direction of the slide bar, the connection seat being hinged to the rotating arm, and the cleaning member being connected to the slide bar via a mounting frame;

[0043] A spring is sleeved on the slide bar, and one end of the spring abuts against the mounting bracket, and the other end abuts against a hinge point between the slide bar and the rotating arm.

[0044] Preferably, in the above-mentioned auxiliary maintenance device for the cylinder, the mounting frame is a V-shaped frame, and the opening of the V-shaped frame faces the supporting assembly, and the cleaning member is provided on both sides of the V-shaped frame facing one end of the supporting assembly.

[0045] The embodiment of the present invention discloses an auxiliary maintenance device for the cylinder of a steam turbine for a thermal power plant, which uses a clamp assembly to clamp the cylinder and drive the cylinder to rotate around the axis of the cylinder, so that the outer surface of the cylinder is inspected and maintained during the rotation of the cylinder. In addition, the auxiliary cleaning assembly is used to clean the outer surface of the cylinder, that is, the auxiliary maintenance device for the cylinder of the steam turbine for a thermal power plant can realize mechanized rotation of the cylinder and mechanized cleaning of the cylinder, thereby reducing the labor intensity of the operator, and can improve the cleanliness of the cylinder surface, which is conducive to improving the maintenance efficiency of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0047] Figure 1 It is a structural schematic diagram of an auxiliary maintenance device for a cylinder of a steam turbine for a thermal power plant disclosed in an embodiment of the present invention;

[0048] Figure 2 A schematic diagram of the structure of a support assembly disclosed in an embodiment of the present invention;

[0049] Figure 3 It is a structural schematic diagram of a clamp assembly disclosed in an embodiment of the present invention;

[0050] Figure 4 It is a structural schematic diagram of an auxiliary cleaning component disclosed in an embodiment of the present invention;

[0051] Figure 5 for Figure 4 A partial enlarged view of middle A;

[0052] Figure 6 A schematic diagram of the structure of a cleaning device disclosed in an embodiment of the present invention;

[0053] Figure 7 It is a schematic diagram of the structure of the connection component disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0054] The invention discloses an auxiliary maintenance device for a cylinder of a steam turbine used in a thermal power plant, which reduces the labor intensity of the maintenance of the cylinder and improves the efficiency of the maintenance of the cylinder.

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0057] At present, thermal power plants mainly use steam turbines for power generation, and the cylinder is one of the important components in the steam turbine to achieve this energy conversion.

[0058] In a steam turbine, the cylinder plays the role of converting high-temperature and high-pressure gas into mechanical energy, similar to the role of the cylinder in an internal combustion engine.

[0059] In order to ensure the normal operation of the cylinder, the cylinder needs to be inspected and cleaned externally. During the inspection and cleaning process, the cylinder needs to be turned over to complete the overall external inspection of the cylinder. However, during the inspection of a cylinder with a relatively large size and weight, turning the cylinder over is very inconvenient, greatly wastes the operator's labor intensity, and leads to low inspection efficiency.

[0060] Based on the above technical problems, an embodiment of the present application discloses an auxiliary maintenance device for the cylinder of a steam turbine used in a thermal power plant, which is used to inspect and clean the outer surface of the cylinder of the steam turbine and facilitate the turning over of the cylinder.

[0061] like Figure 1 As shown, the auxiliary maintenance device for the cylinder of a steam turbine for a thermal power plant according to an embodiment of the present application comprises: a support assembly 1, a clamp assembly 2 and an auxiliary cleaning assembly 3.

[0062] The support assembly 1 is the installation base of the entire auxiliary maintenance device, and its shape and size can be set according to different needs.

[0063] The clamp assembly 2 is installed on the support assembly 1, and is used to clamp the cylinder and can drive the cylinder to rotate around the axis of the cylinder.

[0064] The auxiliary cleaning component 3 is installed on the support component 1 and can move along the support component 1. The movement direction of the auxiliary cleaning component 3 is the axial direction of the cylinder clamped by the clamp component 2. The auxiliary cleaning component 3 is used to clean the outer surface of the cylinder.

[0065] The auxiliary maintenance device for the cylinder of the steam turbine for thermal power plants disclosed in the embodiment of the present application uses a clamp assembly 2 to clamp the cylinder and drive the cylinder to rotate around the axis of the cylinder, so that the outer surface of the cylinder is inspected and maintained during the rotation of the cylinder. In addition, the auxiliary cleaning assembly 3 is used to clean the outer surface of the cylinder, that is, the auxiliary maintenance device for the cylinder of the steam turbine for thermal power plants can realize mechanized rotation of the cylinder and mechanized cleaning of the cylinder, thereby reducing the labor intensity of the operator and facilitating the improvement of the maintenance efficiency of the cylinder.

[0066] In some embodiments, the substrate 11 is provided with a discharge port 4. After cleaning the cylinder, the auxiliary maintenance device of the cylinder of the embodiment of the present application can discharge the dirt generated by cleaning the cylinder out of the support assembly 1 through the discharge port 4.

[0067] Optionally, the discharge port 4 can be connected to a discharge hopper. The discharge hopper can be installed in an elastic manner, that is, connected to the base plate 11 through a spring member, and under the action of the spring member, the discharge hopper can be made to shake more obviously, so when dirt accumulates on the discharge hopper and fails to slide down automatically, the discharge hopper can be directly hit to vibrate the discharge hopper so that the dirt accumulated on the discharge hopper can slide down.

[0068] like Figure 2 As shown, the support assembly 1 provided in the embodiment of the present application includes: a base plate 11 , a first track plate 12 , a second track plate 13 and a connecting plate 14 .

[0069] The base plate 11 is a mounting base, and the shape, size and material of the base plate 11 can be set as required and are not limited here. For example, the base plate 11 is a channel steel member.

[0070] There are two base plates 11 , which are arranged opposite to each other and in parallel. A first track plate 12 is fixed to the upper surface of one of the two base plates 11 , and a second track plate 13 is fixed to the upper surface of the other base plate 11 .

[0071] The first track plate 12 and the second track plate 13 are arranged in parallel, so that the track on the first track plate 12 is parallel to the track on the second track plate 13. The first track plate 12 and the second track plate 13 are arranged along a first direction, wherein the first direction in this document is perpendicular to the direction in which the first track plate 12 and the second track plate 13 extend, so that the first track plate 12 and the second track plate 13 form two parallel tracks arranged along the first direction, and for the convenience of description, the direction in which the first track plate 12 and the second track plate 13 extend is defined as the second direction in this document.

[0072] There are two clamp assemblies 2 mentioned above, and one of the two clamp assemblies 2 is connected to the track of the first track plate 12 and the track of the second track plate 13 in a sliding fit, so that one of the clamp assemblies 2 can move along the track.

[0073] The connecting plate 14 connects the two substrates 11 and ensures the stability of the distance between the two substrates 11. In some embodiments, the connecting plate 14 and the substrate 11 are connected by welding. Of course, the connecting plate 14 and the substrate 11 can also be integrally formed. Exemplarily, there are two connecting plates 14, which are arranged along the second direction.

[0074] like Figure 3 The fixture assembly 2 shown includes: a support seat 21, a support plate 22, a bearing seat 23 and a support wheel 24.

[0075] Among them, the support seat 21 is used to be installed on the support assembly 1, the support plate 22 is fixed on the support seat 21, two bearing seats 23 are installed on the support plate 22, and the connection direction of the two bearing seats 23 is perpendicular to the extension direction of the first track plate 12. It can be understood that: the support plate 22 extends along the first direction, and the two bearing seats 23 are arranged along the first direction on the support plate 22. Support wheels 24 are respectively provided on the two bearing seats 23, and the support wheels 24 are rotatably installed on the corresponding bearing seats 23, and the rotation plane of the support wheels 24 is parallel to the first direction, and in the process of using the clamp assembly 2 of the embodiment of the present application, the rotation direction of the two support wheels 24 is the same. The clamp assembly 2 of the embodiment of the present application can clamp the cylinder using two support wheels 24, and the cylinder is driven to rotate by the rotation of the support wheels 24 to realize the inspection of the cylinder surface.

[0076] In some embodiments, the distance between the two bearing seats 23 is adjustable. For example, the bearing seats 23 are movably mounted on the support plate 22 and can be fixed relative to the support plate 22. The distance between the bearing seats 23 can be adjusted to meet the clamping requirements of cylinders with different diameters.

[0077] Combination Figure 1 It can be seen that the clamp assemblies 2 of the embodiment of the present application are two groups, and the structures of the two groups of clamp assemblies 2 are the same, and the two clamp assemblies 2 are arranged along the second direction. The support seat 21 of one of the two clamp assemblies 2 is fixed to the first track plate 12 and the second track plate 13, and is slidably connected with the track of the first track plate 12 and the track of the second track plate 13. The support seat 21 of the other of the two clamp assemblies 2 is fixed to the base plate 11.

[0078] One of the two clamp assemblies 2 in the embodiment of the present application is fixed, and the other can slide along the second direction, thereby changing the distance between the two clamp assemblies 2 along the second direction, thereby adapting to the clamping of cylinders of different lengths, and being able to change the position of the clamp assembly 2 clamping the cylinder as needed.

[0079] Figures 4 to 7 The auxiliary cleaning assembly 3 shown in the figure includes: a lateral adjustment device 31 and a cleaning device 32.

[0080] The cleaning device 32 is used to clean the cylinder, and the cleaning device 32 is installed on the transverse adjustment device 31, and the transverse adjustment device 31 can drive the cleaning device 32 to move along the second direction.

[0081] Figure 4 and Figure 5 The lateral adjustment device 31 includes: a positioning seat 311, a screw screw 312, a guide rod 313, a driving motor 314, a driving wheel 315, a driven wheel 316, a transmission belt 317 and a transmission seat 318.

[0082] There are two positioning seats 311, which are respectively fixed on a connecting plate 14 of the support assembly 1, so that the two positioning seats 311 are arranged along the second direction. In some embodiments, the distance between the two positioning seats 311 is not less than the length of the cylinder.

[0083] Both ends of the screw shaft 312 along the second direction are rotatably connected to the positioning seats 311 on the corresponding sides, so that the screw shaft 312 is rotatably mounted between the two positioning seats 311 .

[0084] The guide rod 313 is arranged in parallel with the screw 312 , and two ends of the guide rod 313 along the second direction are fixedly connected to the positioning seats 311 on the corresponding sides, so that the guide rod 313 is fixed between the two positioning seats 311 .

[0085] The drive motor 314 is fixedly arranged. For example, the drive motor 314 can be fixed to the connecting plate 14 or to the base plate 11. The output shaft of the drive motor 314 is transmission-connected with the driving wheel 315. For example, the driving wheel 315 is sleeved on the output shaft of the drive motor 314 and connected by a spline, so that the drive motor 314 drives the driving wheel 315 to rotate.

[0086] The driven wheel 316 is fixedly connected to the spiral screw 312 . Exemplarily, the spiral screw 312 passes through the driven wheel 316 and is spline-connected to the driven wheel 316 , so that the driven wheel 316 and the spiral screw 312 rotate synchronously.

[0087] The driving wheel 315 and the driven wheel 316 are connected by a transmission belt 317. In some embodiments, the driving wheel 315 and the driven wheel 316 are sprocket wheels, and the transmission belt 317 is a chain; in some embodiments, the driving wheel 315 and the driven wheel 316 are pulleys, and the transmission belt 317 is a belt. In some embodiments, the driving wheel 315 and the driven wheel 316 can be directly meshed and transmitted.

[0088] After the driving motor 314 provided in the embodiment of the present application is started, the driving wheel 315 is driven to rotate, and the rotation of the driving wheel 315 drives the transmission belt 317 to rotate, and transmits power to the driven wheel 316, so that the driven wheel 316 rotates synchronously, and the driven wheel 316 rotates synchronously to drive the spiral screw 312 to rotate, that is, the driving of the spiral screw 312 is completed. It should be noted that the driving motor 314, the driving wheel 315, the driven wheel 316 and the transmission belt 317 in this article can be used as a specific structure of a driving transmission device for driving the spiral screw 312 to rotate, and other driving transmission devices that can realize the rotation of the spiral screw 312 can be set according to different needs.

[0089] Optionally, the driving wheel 315 and the driven wheel 316 are arranged along the height direction, and the height direction is perpendicular to the plane where the support assembly 1 is located, thereby reducing the area occupied by the auxiliary maintenance device of the cylinder in the horizontal direction, which is conducive to the miniaturized design of the auxiliary maintenance device of the cylinder.

[0090] The transmission seat 318 is threadedly connected to the screw rod 312 , and the transmission seat 318 is slidably connected to the guide rod 313 .

[0091] During the rotation of the screw 312, the guide rod 313 limits the transmission seat 318 to rotate synchronously with the screw 312, so that the transmission seat 318 moves along the axial direction of the screw 312, that is, the connection method of the transmission seat 318 can realize the movement of the transmission seat 318 along the axis of the screw 312.

[0092] The transmission seat 318 of the embodiment of the present application moves along the axis of the screw 312, thereby driving the cleaning device 32 to move along the second axial direction relative to the cylinder, thereby achieving cleaning in the length direction of the cylinder.

[0093] See also Figure 1 as well as Figure 6 and Figure 7 As shown, the cleaning device 32 includes: a rotating arm 322, a mounting frame 323, a cleaning cotton block 324, a hydraulic cylinder 325, a support frame 326, and a connecting component 327. The connecting component 327 includes: a sliding rod 3271, a spring 3272, a handle 3273 and a connecting seat 3274.

[0094] One end of the support frame 326 is fixed to the transmission seat 318, and the other end is rotatably connected to the rotating arm 322. Exemplarily, the support frame 326 and the transmission seat 318 are welded or integrally formed, and the support frame 326 is hinged to the rotating arm 322. The shape and size of the support frame 326 can be set according to different needs, which is not limited herein.

[0095] One end of the hydraulic cylinder 325 is hinged to the support frame 326, and the other end of the hydraulic cylinder 325 is hinged to the rotating arm 322. The middle position of the rotating arm 322 is hinged to the support frame 326, and one end of the rotating arm 322 is hinged to the hydraulic cylinder 325, and the other end of the rotating arm 322 is hinged to the connecting component 327. The connecting component 327 is disposed toward one end of the supporting component 1 to set the mounting frame 323, and the mounting frame 323 is detachably provided with a cleaning cotton block 324.

[0096] In some embodiments, the mounting frame 323 is V-shaped, and the opening of the mounting frame 323 faces the supporting assembly 1, and the cleaning cotton block 324 is installed at the ends of the two sides of the V-shape of the mounting frame 323. It can be understood that: the ends of the two sides of the V-shape are provided with cleaning cotton blocks 324 to increase the cleaning area and improve the cleaning efficiency.

[0097] During the extension and retraction process of the hydraulic cylinder 325 of the embodiment of the present application, the rotating arm 322 is pushed to rotate around the hinge point of the support frame 326, thereby changing the height distance of the cleaning cotton block 324 connected to the rotating arm 322 relative to the cylinder, so as to adapt to the cleaning of cylinders of different sizes; in addition, during the movement of the cleaning cotton block 324 relative to the cylinder driven by the rotating arm 322, the cylinder can be easily loaded and unloaded from the clamp assembly 2. After the surface of the cylinder is cleaned by the cleaning cotton block 324, it is more convenient for the operator to observe the wear of the surface of the cylinder, thereby improving the accuracy of the inspection of the surface of the cylinder.

[0098] like Figure 7 As shown, in the connection component 327 of the embodiment of the present application, a handle 3273 is provided at one end of the sliding rod 3271, and the other end of the sliding rod 3271 is slidably connected to the mounting frame 323, and a connecting seat 3274 is provided in the middle position of the sliding rod 3271, and the connecting seat 3274 is hinged to the rotating arm 322 to realize the hinge connection between the connection component 327 and the rotating arm 322, and the connecting seat 3274 is slidably connected to the sliding rod 3271.

[0099] The slide bar 3271 is slidably connected to the mounting frame 323 , and can adjust the pressure applied by the cleaning cotton block 324 on the mounting frame 323 to the cylinder, thereby changing the cleaning force of the cleaning cotton block 324 .

[0100] In an optional embodiment, a spring 3272 is sleeved on the slide bar 3271, and one end of the spring 3272 abuts against the connection seat 3274, and the other end abuts against the mounting bracket 323. The connection seat 3274 can be driven to move toward the connection assembly 327 by the handle 3273, so that the spring 3272 can produce elastic deformation.

[0101] The cleaning device 32 of the embodiment of the present application can realize the resetting of the mounting frame 323 by setting the spring 3272, and provide a certain resetting force for the mounting frame 323, so that the cleaning cotton block 324 is against the cylinder, thereby adjusting the contact effect between the cleaning cotton block 324 and the cylinder.

[0102] It should be noted that the cleaning cotton block 324 in this article can also be other cleaning parts with cleaning functions.

[0103] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0104] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An auxiliary maintenance device for a cylinder of a steam turbine used in a thermal power plant, characterized in that: include: Support components; A clamp assembly, the clamp assembly is used to clamp the cylinder and can drive the cylinder to rotate around the axis of the cylinder, and the clamp assembly is at least two, one of the clamp assemblies is fixedly connected to the support assembly, and the other can slide along the extension direction of the support assembly; An auxiliary cleaning component is installed on the supporting component and can move along the extending direction of the supporting component. The auxiliary cleaning component is used to clean the cylinder clamped by the clamping component.

2. The auxiliary maintenance device for the cylinder according to claim 1, characterized in that: The support assembly comprises: substrate; A first track plate, the first track plate is fixed on the base plate, and the first track plate has a track arranged along an extension direction of the support assembly; a second track plate, the second track plate being fixed on the base plate, the second track plate having a track arranged along the extension direction of the support assembly, and the track of the first track plate and the track of the second track plate being parallel and arranged along the first direction; the clamp assembly in the clamp assembly sliding along the extension direction of the support assembly slidingly cooperates with the track of the first track plate and the track of the second track plate; The first direction is perpendicular to an extension direction of the supporting assembly.

3. The auxiliary maintenance device for the cylinder according to claim 2, characterized in that: The clamp assembly comprises: Support plate; A bearing seat, the bearing seat is movably mounted on the support plate, and there are at least two bearing seats arranged along the first direction; A supporting wheel is rotatably mounted on the bearing seat, and a rotation plane of the supporting wheel is parallel to the first direction. The supporting wheels of the two bearing seats arranged along the first direction are used for clamping the cylinder.

4. The auxiliary maintenance device for the cylinder according to claim 3, characterized in that: The support plate of the clamp assembly fixedly connected to the support assembly in the clamp assembly is fixed on the base plate; The support plate of the clamp assembly slidably connected to the support assembly in the clamp assembly is slidably matched with the track of the first track plate and the track of the second track plate.

5. The auxiliary maintenance device for a cylinder according to any one of claims 1 to 4, characterized in that: The auxiliary cleaning component comprises: A cleaning device, the cleaning device is used to contact with the cylinder and clean the cylinder; A lateral adjustment device, the cleaning device is mounted on the lateral adjustment device, and the lateral adjustment device can move along the extension direction of the support assembly.

6. The auxiliary maintenance device for a cylinder according to claim 5, characterized in that: The lateral adjustment device comprises: A spiral screw, the spiral screw is rotatably mounted on the support assembly, and the axial direction of the spiral screw is arranged along the extension direction of the support assembly; A guide rod, the guide rod is fixed on the support assembly, and the guide rod is arranged parallel to the spiral screw; A transmission seat, the transmission seat is threadedly connected to the spiral screw and slidably connected to the guide rod, and the cleaning device is fixed to the transmission seat; A drive transmission device drives the spiral screw to rotate.

7. The auxiliary maintenance device for a cylinder according to claim 6, characterized in that: The drive transmission device comprises: A driving motor, wherein the driving motor is fixed on the supporting assembly; A driving wheel, the driving wheel is drivingly connected to the driving motor; A driven wheel is connected to the screw shaft in driving connection, and the driving wheel is connected to the driven wheel in driving connection, the driving wheel and the driven wheel are arranged along a height direction, and the height direction is perpendicular to the plane where the support assembly is located.

8. The auxiliary maintenance device for a cylinder according to claim 6, characterized in that: The lateral adjustment device comprises: A mounting frame, the mounting frame is fixedly connected to the transmission seat; A rotating arm, wherein the middle position of the rotating arm is hinged to the mounting frame; A hydraulic cylinder, one end of which is hinged to the mounting frame, and the other end of which is hinged to one end of the rotating arm; A connecting assembly, the connecting assembly being hinged to the other end of the rotating arm; A cleaning member is installed at one end of the connecting assembly close to the supporting assembly.

9. The auxiliary maintenance device for a cylinder according to claim 8, characterized in that: The connection component comprises: A slide bar, the slide bar having a connection seat movable along the axis direction of the slide bar, the connection seat being hinged to the rotating arm, and the cleaning member being connected to the slide bar via a mounting frame; A spring is sleeved on the slide bar, and one end of the spring abuts against the mounting bracket, and the other end abuts against a hinge point between the slide bar and the rotating arm.

10. The auxiliary maintenance device for a cylinder according to claim 9, characterized in that: The mounting frame is a V-shaped frame, and the opening of the V-shaped frame faces the supporting assembly. The cleaning member is disposed on both ends of the two side edges of the V-shaped frame facing the supporting assembly.

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