Generator maintenance robot and maintenance system

Abstract

The utility model relates to a generator maintenance robot and system. The generator maintenance robot comprises a chassis, a moving mechanism, a maintenance assembly, a magnetic part, a guide assembly, an operation module, a display module, a signal transmission module and a control module. In the actual use process of the generator maintenance robot, it is ensured that the generator maintenance robot can normally move in the stator through the attraction force of the magnetic part to the stator, and the control module controls the moving mechanism to act to drive the generator maintenance robot to move through sliding fit between the guide assembly and the side wall of the strip-shaped groove; the control module controls the maintenance assembly to act, so that the maintenance assembly simply maintains the to-be-maintained part between the stator and the rotor, the generator maintenance robot can operate in the preset direction and maintain the gap between the stator and the rotor, maintenance personnel do not need to enter the stator, and the maintenance efficiency is improved. And the generator is prevented from being damaged by falling the generator maintenance robot.

Description

Technical Field

[0001] This application relates to the technical field of electrical maintenance, and particularly to a generator overhaul robot and an overhaul system. Background Art

[0002] During major overhauls, generators need to have their rotors periodically withdrawn and inserted for overhaul. The existing overhaul method mainly involves first withdrawing the rotor from the stator, and then having personnel enter the stator cavity for a series of inspections and tests.

[0003] However, the above-mentioned overhaul method requires the removal of a large number of components and takes a long time for overhaul. Generally, compared to not withdrawing the rotor, the overhaul of withdrawing and inserting the rotor requires additional manual time. Moreover, the rotor is 15.38 meters long and 2 meters in diameter, and the minimum air gap with the stator is only 58 mm. During the withdrawal process, it is very easy to damage the equipment due to problems such as collisions.

[0004] Existing robotic devices can inspect narrow areas. However, the gap between the stator and the rotor is arc-shaped, and when the robot moves near the vertical directions of 90° or 270° inside the stator, due to the robot being affected by gravity, cable drag force, and the reduction of the friction coefficient caused by the residual oil film inside the generator, these factors may prevent the robot from running correctly along the axis or even cause it to fall, thus posing a risk of damaging the generator. Summary of the Utility Model

[0005] Based on this, in view of the problem that existing robots cannot run correctly along the axis inside the stator or even fall, thereby damaging the generator, it is necessary to provide a generator overhaul robot and an overhaul system.

[0006] A generator overhaul robot, the generator includes a stator and a rotor that can be inserted into or withdrawn from the stator hole. A plurality of strip-shaped grooves are provided on the inner wall of the stator at the gap between the stator and the rotor, and the strip-shaped grooves extend along the axial direction of the stator. The generator overhaul robot includes:

[0007] A chassis;

[0008] A moving mechanism, connected to the chassis, for driving the chassis to move;

[0009] An overhaul component, arranged on the chassis, for overhauling the generator;

[0010] A magnetic member, arranged at the bottom of the chassis and used for adsorbing the inner wall of the stator. The adsorption force between the magnetic member and the stator is greater than the gravity of the generator overhaul robot;

[0011] A guide assembly is arranged on the chassis. The guide assembly can be partially located in the strip groove and can be slidably matched with the side wall of the strip groove. The guide assembly is used to guide the movement of the chassis along a preset direction.

[0012] During actual use of the above-mentioned generator maintenance robot, the chassis is placed in a preset direction, and the guide assembly is extended into the strip groove. The chassis can be adsorbed to the inner side of the stator through the adsorption force of the magnetic part on the stator, and the chassis is driven to move by the moving mechanism. During the movement of the chassis, the maintenance assembly inspects the inner side of the stator, thereby ensuring that the generator maintenance robot can move normally inside the stator through the adsorption force of the magnetic part on the stator, and through the sliding cooperation between the guide assembly and the side wall of the strip groove, the generator maintenance robot can run in the preset direction and repair the gap between the stator and the rotor, without the need for maintenance personnel to enter the stator, and avoiding the generator maintenance robot from falling and damaging the generator.

[0013] In one embodiment, the guide assembly includes a movable member, an elastic member, and a stop member;

[0014] The stopper is connected to a side of the chassis facing away from the magnetic member;

[0015] The chassis is provided with a guide hole in a direction perpendicular to the chassis, and the movable member is passed through the guide hole;

[0016] One end of the elastic member is connected to the stopper, and the other end is connected to the movable member. The movable member can be partially located in the strip groove and can be slidably matched with the side wall of the strip groove.

[0017] In one embodiment, the stopper comprises a supporting portion and a stopping portion;

[0018] The support part is connected to a side of the chassis away from the magnetic part, the stop part is arranged on a side of the support part, and one end of the elastic part away from the movable part is connected to a side of the stop part close to the chassis.

[0019] In one embodiment, the generator maintenance robot also includes a fastener, the support portion is provided with a first fastening hole along a direction perpendicular to the chassis, the chassis is provided with a second fastening hole along a direction perpendicular to the chassis, and the fastener is passed through the first fastening hole and the second fastening hole to connect the support portion to the chassis.

[0020] In one embodiment, the guide assembly includes two movable members and two elastic members, and the stopper includes two stoppers;

[0021] The two stop parts are arranged on both sides of the support part along the preset direction, the two elastic parts, the two movable parts and the two stop parts correspond to each other and are connected in sequence, and the two sides of the two movable parts facing away from each other can respectively slide with the two side walls opposite to the strip groove.

[0022] In one embodiment, the generator maintenance robot includes two guide components, and the two guide components are respectively arranged at two ends of the chassis along the preset direction.

[0023] In one embodiment, the moving mechanism includes a driving member and a moving assembly disposed on the chassis, the driving member is connected to the moving assembly, and the driving member is used to drive the moving assembly to rotate around its axial direction to drive the chassis to move.

[0024] In one embodiment, the moving assembly includes rollers and / or tracks.

[0025] In one embodiment, the chassis is provided with moving grooves on both sides along the preset direction, and the crawler track is located in the moving grooves and is rotatably connected to the chassis.

[0026] An embodiment of the present application further provides a maintenance system, the maintenance system comprising: a control module, a signal transmission module, an operation module, a display module and the generator maintenance robot;

[0027] The control module and the signal transmission module are arranged on the chassis, the control module and the signal transmission module are both connected to the maintenance assembly, and the operation module is connected to the signal transmission module;

[0028] The signal transmission module is connected to the operation module to transmit the maintenance signal of the operation module to the control module, and the control module controls the operation of the maintenance component according to the maintenance signal;

[0029] The control module is connected to the moving mechanism, and the signal transmission module is used to transmit the moving signal of the operating module to the control module, and the control module controls the movement of the moving mechanism according to the moving signal;

[0030] The signal transmission module is connected to the display module and is used to transmit the data signal of the maintenance component to the display module.

[0031] During the actual use of the above-mentioned maintenance system, the chassis is placed along the preset direction, and the guiding component is inserted into the strip-shaped groove. The chassis can be adsorbed on the inner side of the stator by the adsorption force of the magnetic part on the stator. The chassis is driven to move by the moving mechanism. During the movement of the chassis, the maintenance component inspects the inner side of the stator. Thus, through the adsorption force of the magnetic part on the stator, it is ensured that the generator maintenance robot can move normally inside the stator. Through the sliding fit between the guiding component and the side wall of the strip-shaped groove, the operator sends maintenance signals and movement signals to the control module through the operation module. As a result, the control module controls the moving mechanism to act and drive the generator maintenance robot to move, and the control module controls the maintenance component to act. Thus, the maintenance component briefly repairs the part to be repaired between the stator and the rotor, enabling the generator maintenance robot to operate along the preset direction and repair the gap between the stator and the rotor. There is no need for maintenance personnel to enter the stator, and the damage to the generator caused by the falling of the generator maintenance robot is avoided. Description of the Drawings

[0032] Figure 1 Schematic diagram of the generator maintenance robot of an embodiment located between the stator and the rotor.

[0033] Figure 2 For Figure 1 the structural schematic diagram of the generator maintenance robot in

[0034] Figure 3 For Figure 1 the structural schematic diagram of the generator maintenance robot from another perspective in

[0035] Figure 4 For Figure 1 the enlarged view of the guiding mechanism in the generator maintenance robot in

[0036] Explanation of the Reference Numerals in the Drawings:

[0037] 100 - Generator maintenance robot;

[0038] 110 - Chassis; 111 - Guiding hole; 112 - Second fastening hole; 113 - Moving groove;

[0039] 120 - Moving mechanism; 121 - Driving part; 122 - Moving component; 123 - Roller; 124 - Track;

[0040] 130 - Maintenance component;

[0041] 140 - Magnetic part;

[0042] 150 - Guiding component; 151 - Movable part; 152 - Elastic part; 153 - Stopping part; 154 - Supporting part; 155 - Stopping part; 156 - First fastening hole; 157 - Elastic groove;

[0043] 160 - Fasteners;

[0044] 210 - Stator; 211 - Rotor; 212 - Bar slot. Detailed implementation manners

[0045] To make the above - mentioned objects, features, and advantages of the present application more obvious and understandable, the following describes the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0046] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counter - clockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present application.

[0047] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plural", the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0048] In the present application, unless otherwise clearly specified and limited, if there are terms such as "installation", "connection", "connection", "fixation", etc., these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above - mentioned terms in the present application can be understood according to specific circumstances.

[0049] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0051] The generator maintenance robot 100 of the present application is suitable for a generator, wherein the generator includes a stator 210 and a rotor 211 that can be inserted into or pulled out of a stator hole, a gap is set between the stator 210 and the rotor 211, and the inner wall of the stator 210 has a plurality of strip grooves 212, and the strip grooves 212 extend along the axial direction of the stator 210.

[0052] See also Figure 2 , Figure 2 A schematic structural diagram of a generator maintenance robot 100 in an embodiment of the present application is shown. The generator maintenance robot 100 provided in an embodiment of the present application includes: a chassis 110, a moving mechanism 120, a maintenance component 130, a magnetic component 140 and a guide component 150.

[0053] In the above-mentioned generator maintenance robot 100, the moving mechanism 120 is connected to the chassis 110 and is used to drive the chassis 110 to move. The maintenance component 130 is arranged on the chassis 110 and is used to repair the generator. The magnetic member 140 is arranged at the bottom of the chassis 110, that is, on the side close to the stator 210, and is used to adsorb the inner wall of the stator 210. The adsorption force between the magnetic member 140 and the stator 210 is greater than the gravity of the generator maintenance robot 100. The guide component 150 is arranged on the chassis 110. The guide component 150 can be partially located in the strip groove 212 and can slide with the side wall of the strip groove 212. The guide component 150 is used to guide the movement of the chassis 110 along a preset direction, that is, the axial direction of the stator 210.

[0054] During the actual use of the above-mentioned generator maintenance robot 100, the chassis 110 is placed along the axial direction of the stator 210, and the guiding component 150 is inserted into the strip-shaped groove 212. The chassis 110 can be adsorbed on the inner side of the stator 210 by the adsorption force of the magnetic component 140 on the stator 210. The chassis 110 is driven to move by the moving mechanism 120. During the movement of the chassis 110, the maintenance component 130 repairs the inner side of the stator 210. Thus, through the adsorption force of the magnetic component 140 on the stator 210, it is ensured that the generator maintenance robot 100 can move normally inside the stator 210. Through the sliding fit between the guiding component 150 and the side wall of the strip-shaped groove 212, the generator maintenance robot 100 can operate along the axial direction of the stator 210 and repair the gap between the stator 210 and the rotor 211, without the need for maintenance personnel to enter the inside of the stator 210, and it is avoided that the generator maintenance robot 100 falls and damages the generator.

[0055] Specifically, the maintenance component 130 includes an image acquisition part and a maintenance part. The image acquisition part is arranged on the chassis 110 and is used to acquire the image between the stator 210 and the rotor 211 for the operator to judge whether maintenance is needed. The maintenance part is arranged on the chassis 110, and the operator can remotely control the maintenance part to repair the parts that need to be repaired between the stator 210 and the rotor 211. Specifically, the maintenance part can be components such as a manipulator or a welding head, and the maintenance part with different functions can be specifically set according to the actual situation, which will not be elaborated here.

[0056] Specifically, the magnetic component 140 is a magnet, and the magnet can adsorb the stator 210.

[0057] In another embodiment, the stator 210 has magnetism, and the magnetic component 140 is a metal or a magnet that can be adsorbed by the magnet.

[0058] Refer to Figure 4In one embodiment, the guide assembly 150 includes a movable member 151, an elastic member 152, and a stopper 153. The chassis 110 is provided with a guide hole 111 perpendicular to the direction of the chassis 110, the movable member 151 is passed through the guide hole 111, and the stopper 153 is connected to a side of the chassis 110 away from the magnetic member 140, that is, a side close to the rotor 211. One end of the elastic member 152 is connected to the stop member 153, and the other end is connected to the movable member 151. The movable member 151 can be partially located in the strip groove 212 and can slide with the side wall of the strip groove 212, so that the movable member 151 in the guide assembly 150 that slides with the side wall of the strip groove 212 can be extended and retracted along the guide hole 111 along the depth direction of the strip groove 212. Since one end of the elastic member 152 is fixed to the stop member 153, the elastic force of the elastic member 152 makes the movable member 151 abut against the bottom wall of the strip groove 212, so that the movable member 151 extends into the strip groove 212 and slides with the inner wall of the strip groove 212, so as to guide the generator maintenance robot 100 along the axial direction of the stator 210.

[0059] See also Figure 4 In one embodiment, the stopper 153 includes a support portion 154 and a stopper 155. The support portion 154 is connected to the side of the chassis 110 away from the magnetic member 140, that is, close to the rotor 211, and the stopper 155 is arranged on the side of the support portion 154. The end of the elastic member 152 away from the movable member 151 is connected to the side of the stopper 155 close to the chassis 110, so that, through the supporting effect of the support portion 154, the stopper 155 is arranged on the side of the movable member 151 close to the rotor 211, so that the elastic member 152 can be arranged between the stopper 155 and the movable member 151, ensuring that the direction of the elastic force of the elastic member 152 is perpendicular to the chassis 110.

[0060] Specifically, an elastic groove 157 is provided on the side of the movable part 151 close to the rotor 211 in a direction perpendicular to the chassis 110, and the end of the elastic part 152 away from the stop portion 155 is connected to the bottom wall of the elastic groove 157, thereby ensuring that the elastic force of the elastic part 152 is in a direction perpendicular to the chassis 110, so that the movable part 151 can be stably inserted into the guide hole 111 and stably cooperate with the strip groove 212.

[0061] Specifically, the elastic member 152 is a spring or an elastic rubber strip, etc. It can also be in other forms, which will not be described in detail.

[0062] See also Figure 4In one embodiment, the generator maintenance robot 100 also includes a fastener 160, the support portion 154 is provided with a first fastening hole 156 along a direction perpendicular to the chassis 110, and the chassis 110 is provided with a second fastening hole 112 along a direction perpendicular to the chassis 110. The fastener 160 is passed through the first fastening hole 156 and the second fastening hole 112, and is used to connect the support portion 154 to the chassis 110, so that the support portion 154 can be detachably connected to the chassis 110, and further the guide assembly 150 can be detachably connected to the chassis 110.

[0063] See also Figure 4 In one embodiment, the guide assembly 150 includes two movable members 151 and two elastic members 152, and the stopper 153 includes two stoppers 155. The two stoppers 155 are arranged on both sides of the support portion 154 along the preset direction, i.e., the axial direction of the stator 210. The two elastic members 152, the two movable members 151 and the two stoppers 155 correspond to each other and are connected in sequence. The two sides of the two movable members 151 that are away from each other can respectively slide with the two side walls opposite to the strip groove 212, so that the movable members 151 slide with the side walls of the strip groove 212 on both sides of the support portion 154 along the axial direction of the stator 210, thereby balancing the forces on both sides of the support portion 154 along the moving direction of the chassis 110 and the strip groove 212, thereby ensuring the stable cooperation between the guide assembly 150 and the stator 210 during the movement of the generator maintenance robot 100.

[0064] See also Figures 2 - 4 In one embodiment, the generator maintenance robot 100 includes two guide assemblies 150, and the two guide assemblies 150 are respectively arranged at two ends of the chassis 110 along the axial direction of the stator 210, so that the chassis 110 can be slidably matched with the strip groove 212 along a preset direction, that is, both ends of the axial direction of the stator 210 are slidably matched with the strip groove 212 through the guide assemblies 150, so that the guide assemblies 150 can stably guide the generator maintenance robot 100 along the axial direction of the stator 210.

[0065] See also Figures 2 - 4 In one embodiment, the moving mechanism 120 includes a driving member 121 and a moving component 122 which are arranged on the chassis 110. The driving member 121 is connected to the moving component 122. The driving member 121 is used to drive the moving component 122 to rotate around its axis to drive the chassis 110 to move, so that the moving component 122 can be driven to rotate by the driving member 121, and the moving component 122 generates friction with the inner side of the stator 210, thereby causing the generator maintenance robot 100 to move on the inner side of the stator 210.

[0066] See also Figures 2 - 3 In one embodiment, the moving component 122 is a roller 123 , which is disposed on the chassis 110 and rolls with the inner side of the stator 210 .

[0067] In another embodiment, the moving component 122 is a crawler 124 disposed on the chassis 110 and is in rolling cooperation with the inner side of the stator 210.

[0068] In yet another embodiment, the moving component 122 includes rollers 123 and a crawler 124. Both the rollers 123 and the crawler 124 are disposed on the chassis 110 and are in rolling cooperation with the inner side of the stator 210.

[0069] Referring to Figures 2 - 3 , in one embodiment, the chassis 110 is provided with moving grooves 113 on both sides along a preset direction, i.e., the axial direction of the stator 210. The crawler 124 is located in the moving grooves 113 and is rotatably connected to the chassis 110.

[0070] An embodiment of the present application further provides an overhaul system, which includes: a control module (not shown in the figure), a signal transmission module (not shown in the figure), an operation module (not shown in the figure), a display module (not shown in the figure), and a generator overhaul robot 100.

[0071] The control module and the signal transmission module are disposed on the chassis 110. Both the control module and the signal transmission module are connected to the overhaul component 130, and the operation module is connected to the signal transmission module.

[0072] The signal transmission module is connected to the operation module to transmit the overhaul signal of the operation module to the control module. The control module controls the action of the overhaul component 130 according to the overhaul signal.

[0073] The control module is connected to the moving mechanism 120. The signal transmission module is used to transmit the moving signal of the operation module to the control module. The control module controls the action of the moving mechanism 120 according to the moving signal.

[0074] The signal transmission module is connected to the display module and is used to transmit the data signal of the overhaul component to the display module.

[0075] During the actual use of the above-mentioned maintenance system, the chassis 110 is placed along the axial direction of the stator 210, and the guiding component 150 is inserted into the strip-shaped groove 212. The chassis 110 can be adsorbed on the inner side of the stator 210 by the adsorption force of the magnetic part 140 on the stator 210. The chassis 110 is driven to move by the moving mechanism 120. During the movement of the chassis 110, the maintenance component 130 repairs the inner side of the stator 210. Thus, through the adsorption force of the magnetic part 140 on the stator 210, it is ensured that the generator maintenance robot 100 can move normally inside the stator 210. Through the sliding fit between the guiding component 150 and the side wall of the strip-shaped groove 212, the operator sends maintenance signals and movement signals to the control module through the operation module. Thereby, the control module controls the moving mechanism 120 to act to drive the generator maintenance robot 100 to move, and the control module controls the maintenance component 130 to act. Thus, the maintenance component 130 briefly repairs the part to be repaired between the stator 210 and the rotor 211, enabling the generator maintenance robot 100 to run along the axial direction of the stator 210 and repair the gap between the stator 210 and the rotor 211. There is no need for maintenance personnel to enter the inside of the stator 210, and it is avoided that the generator maintenance robot 100 falls and damages the generator.

[0076] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0077] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A generator maintenance robot, the generator comprises a stator and a rotor that can be inserted into or pulled out of a stator hole, the stator and the rotor are arranged with a gap, the inner wall of the stator has a plurality of strip grooves, the strip grooves extend along the axial direction of the stator, characterized in that: The generator maintenance robot comprises: Chassis; A moving mechanism, connected to the chassis, and used to drive the chassis to move; An overhaul component, disposed on the chassis, for overhauling the generator; A magnetic member, disposed at the bottom of the chassis and used to adsorb the inner wall of the stator, wherein the adsorption force between the magnetic member and the stator is greater than the gravity of the generator maintenance robot; A guide assembly is arranged on the chassis. The guide assembly can be partially located in the strip groove and can be slidably matched with the side wall of the strip groove. The guide assembly is used to guide the movement of the chassis along a preset direction.

2. The generator maintenance robot according to claim 1, characterized in that: The guide assembly includes a movable part, an elastic part and a stopper; The stopper is connected to a side of the chassis facing away from the magnetic member; The chassis is provided with a guide hole in a direction perpendicular to the chassis, and the movable member is passed through the guide hole; One end of the elastic member is connected to the stopper, and the other end is connected to the movable member. The movable member can be partially located in the strip groove and can be slidably matched with the side wall of the strip groove.

3. The generator maintenance robot according to claim 2, characterized in that: The stopper comprises a supporting portion and a stopping portion; The support part is connected to a side of the chassis away from the magnetic part, the stop part is arranged on a side of the support part, and one end of the elastic part away from the movable part is connected to a side of the stop part close to the chassis.

4. The generator maintenance robot according to claim 3, characterized in that: The generator maintenance robot also includes a fastener, the support part is provided with a first fastening hole in a direction perpendicular to the chassis, the chassis is provided with a second fastening hole in a direction perpendicular to the chassis, and the fastener is passed through the first fastening hole and the second fastening hole to connect the support part to the chassis.

5. The generator maintenance robot according to claim 3, characterized in that: The guide assembly includes two movable members and two elastic members, and the stopper includes two stoppers; The two stop parts are arranged on both sides of the support part along the preset direction, the two elastic parts, the two movable parts and the two stop parts correspond to each other and are connected in sequence, and the two sides of the two movable parts facing away from each other can respectively slide with the two side walls opposite to the strip groove.

6. The generator maintenance robot according to claim 3, characterized in that: The generator maintenance robot comprises two guide assemblies, and the two guide assemblies are respectively arranged at two ends of the chassis along the preset direction.

7. The generator maintenance robot according to claim 1, characterized in that: The moving mechanism comprises a driving member and a moving assembly which are arranged on the chassis. The driving member is connected to the moving assembly. The driving member is used to drive the moving assembly to rotate around its axial direction to drive the chassis to move.

8. The generator maintenance robot according to claim 7, characterized in that: The moving assembly includes rollers and / or tracks.

9. The generator maintenance robot according to claim 8, characterized in that: The chassis is provided with moving grooves on both sides along the preset direction, and the crawler belt is located in the moving grooves and is rotatably connected to the chassis.

10. A maintenance system, characterized in that: The maintenance system comprises: a control module, a signal transmission module, an operation module, a display module and a generator maintenance robot according to any one of claims 1 to 9; The control module and the signal transmission module are arranged on the chassis, the control module and the signal transmission module are both connected to the maintenance assembly, and the operation module is connected to the signal transmission module; The signal transmission module is connected to the operation module to transmit the maintenance signal of the operation module to the control module, and the control module controls the operation of the maintenance component according to the maintenance signal; The control module is connected to the moving mechanism, and the signal transmission module is used to transmit the moving signal of the operating module to the control module, and the control module controls the movement of the moving mechanism according to the moving signal; The signal transmission module is connected to the display module and is used to transmit the data signal of the maintenance component to the display module.

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