Power plant equipment overhaul stand

Abstract

The invention discloses a power plant equipment overhaul stand which comprises a walking device arranged on the outer wall of target equipment in a surrounding mode, the walking device comprises a walking assembly and a locking assembly, the position of the walking device is adjusted in the axial direction of the target equipment through the walking assembly, and position locking is achieved through the locking assembly; the scanning device comprises a motion base fixedly arranged on the walking device and a visual sensing assembly arranged along the motion base in a sliding mode, and the visual sensing assembly can obtain and feed back image information. Moving and locking in the height direction of the target equipment are achieved through the walking device, meanwhile, information of multiple areas of the target equipment at the same height of the target equipment can be obtained through the arrangement of the moving base and the visual sensing assembly of the scanning device, the manpower and equipment cost in the overhaul process is reduced, and the overhaul efficiency is improved. And the safety of the equipment maintenance process is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of equipment maintenance, in particular to a power plant equipment maintenance platform. BACKGROUND

[0002] In industrial production, many equipment with large height size need to be periodically maintained during operation, but due to the high height, manual maintenance operation is complex and dangerous, and it is difficult to achieve comprehensive maintenance of each area of the outer periphery of the smooth or inclined equipment. Although there are some automatic maintenance equipment in the prior art, they generally have inaccurate positioning, poor walking stability and poor comprehensive maintenance, which is difficult to meet the comprehensive maintenance needs of the equipment. SUMMARY

[0003] Therefore, the purpose of the present application is to provide a power plant equipment maintenance platform, which has the advantages of automatic walking in the axial direction of the equipment and comprehensive detection in the circumferential direction.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] A power plant equipment maintenance platform, comprising:

[0006] A walking device is arranged around the outer wall of the target equipment, the walking device comprises a walking assembly and a locking assembly, the walking device adjusts the position along the axial direction of the target equipment through the walking assembly, and the position is locked through the locking assembly;

[0007] A scanning device comprises a moving base fixedly arranged on the walking device, and a visual sensing assembly slidingly arranged along the moving base, the visual sensing assembly can acquire and feedback image information.

[0008] Preferably, in the above-mentioned power plant equipment maintenance platform, the moving base is a closed structure around the target equipment; the visual sensing assembly comprises an electric sliding block slidingly matched with the moving base.

[0009] Preferably, in the above-mentioned power plant equipment maintenance platform, the visual sensing assembly comprises an angle adjusting part, a distance adjusting part and a camera, the angle adjusting part is used for adjusting the pitch angle of the camera, and the distance adjusting part is used for adjusting the distance between the camera and the target equipment.

[0010] Preferably, in the above-mentioned power plant equipment maintenance platform, the distance adjusting part comprises a support seat and a rack arranged on the support seat, the camera is arranged on one side of the rack, and the rack is meshed with an adjusting gear driven by an adjusting motor.

[0011] The angle adjusting part comprises a rotating base, an electric push rod and a tension spring, the support base is rotatably arranged on the rotating base, the electric push rod is connected with a rotating plate, the opposite ends of the support base are connected with the tension spring and the rotating plate respectively, and the tension spring is in a continuous stretching state.

[0012] Preferably, in the above power plant equipment maintenance platform, the walking device comprises a mounting assembly, the mounting assembly is a segmented assembly structure and is arranged around the target equipment;

[0013] The walking assembly comprises walking wheels for contacting the outer wall of the target equipment, the walking wheels can rotate clockwise and counterclockwise, and the walking assembly is uniformly arranged along the circumference of the mounting assembly at least two groups; the locking assembly comprises a limiting block arranged in an extension mode, and the limiting block can abut against the outer wall of the target equipment at an extreme extension position to lock the walking device.

[0014] Preferably, in the above power plant equipment maintenance platform, the locking assembly comprises a fixed seat and a power part, the fixed seat has a hollow cavity, the limiting block is slidingly arranged in the cavity of the fixed seat, and a first wall of the limiting block is an arc-shaped wall surface matched with the outer wall of the target equipment; the power part is in transmission connection with the limiting block to drive the limiting block to slide in the cavity of the fixed seat.

[0015] Preferably, in the above power plant equipment maintenance platform, the output end of the power part is connected with a pushing block, the pushing block is located in the cavity of the fixed seat and moves along the thickness direction of the fixed seat under the driving of the power part; the pushing block abuts against the limiting block through a driving inclined surface, and the limiting block maintains a continuous abutting effect with the fixed seat through the elastic force of a limiting spring.

[0016] Preferably, in the above power plant equipment maintenance platform, a second wall of the limiting block is connected with a slide rod, one end of the slide rod away from the limiting block is provided with a limiting disc, and the limiting spring is connected at both ends with the limiting disc and the fixed seat, and maintains a compressed state during the operation of the limiting block.

[0017] Preferably, in the above power plant equipment maintenance platform, the pushing block comprises a group of limiting planes arranged in parallel, one of the limiting planes is connected with the driving inclined surface; when the limiting block is in an extended state, the pushing block abuts against the fixed seat and the second wall of the limiting block through a group of the limiting planes.

[0018] Preferably, in the above power plant equipment maintenance platform, the walking assembly comprises a rotating shaft and a driving part, the first end of the rotating shaft is fixedly connected with the walking wheel, and the second end of the rotating shaft is driven to rotate by the driving part.

[0019] Preferably, in the above power plant equipment maintenance platform, the driving part is an electric motor, and a first gear is connected to the output end of the electric motor, and a second gear is fixedly arranged at the second end of the rotating shaft, and the first gear is engaged with the second gear or is in transmission cooperation with the second gear through a transmission belt.

[0020] Preferably, in the above power plant equipment maintenance platform, the mounting assembly comprises an arc-shaped first sleeve ring and a second sleeve ring, both of which are semicircular structures and are connected to form a circular ring through positioning members and connecting members.

[0021] From the above technical solution, it can be seen that the power plant equipment maintenance platform provided by the present application mainly comprises a walking device and a scanning device, wherein the walking device comprises a walking assembly and a locking assembly, so that after being arranged on the outer wall of the target equipment, the position of the maintenance platform in the axial direction of the target equipment can be adjusted through the walking assembly, and when the position adjustment needs to be stopped, the locking assembly can be used for locking. For equipment with a certain height, the height of the maintenance platform can be climbed to meet the maintenance requirements of different heights. On this basis, the scanning device comprises a moving base arranged on the walking device and a visual sensing assembly slidingly arranged along the moving base. The visual sensing assembly is used for acquiring and feeding back image information, so that manual climbing of the equipment is not required, and the automatic acquisition of the equipment condition can be realized through the power plant equipment maintenance platform. With the aid of the moving base, the visual sensing assembly can have a certain range of movement in the circumferential direction of the walking device, and a larger range of image information of the target equipment can be acquired. The power plant equipment maintenance platform provided by the present application not only realizes the movement and locking in the height direction of the target equipment through the walking device, but also realizes the automatic acquisition of the state of the target equipment to determine the maintenance requirements through the arrangement of the moving base and the visual sensing assembly of the scanning device. For target equipment with a complex outer wall surface state such as smoothness and inclination, the arrangement of the moving base can realize the acquisition of information in multiple regions by the visual sensing assembly, without the need for manual operation around the target equipment, thereby reducing the labor cost and improving the safety of the equipment maintenance process. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 The structure schematic diagram of the power plant equipment maintenance platform provided by the present application is shown in the following figure:

[0024] Figure 2 The structure schematic diagram of the scanning device is shown in the following figure:

[0025] Figure 3 Figure 6 is a flip view of the walking assembly and the locking assembly in the walking device;

[0026] Figure 4 Figure 7 is an exploded view of the locking assembly;

[0027] Figure 5 Figure 8 is an exploded view of the mounting assembly.

[0028] Wherein:

[0029] 1 - walking device; 2 - scanning device; 10 - mounting assembly; 110 - first ring; 120 - second ring; 130 - positioning member; 1310 - positioning column; 1320 - positioning groove; 140 - connecting member; 1410 - connecting column; 1420 - connecting plate; 1430 - locking ring; 20 - walking assembly; 210 - walking wheel; 220 - rotating shaft; 230 - driving part; 240 - first gear; 250 - second gear; 260 - transmission belt; 30 - locking assembly; 310 - limiting block; 320 - fixed seat; 330 - power part; 340 - pushing block; 3410 - driving inclined surface; 3420 - limiting plane; 350 - limiting spring; 360 - sliding rod; 370 - limiting disc; 40 - motion base; 50 - visual sensing assembly; 510 - electric sliding block; 520 - angle adjusting part; 5210 - rotating seat; 5220 - electric push rod; 5230 - tension spring; 5240 - rotating plate; 5250 - base; 530 - distance adjusting part; 5310 - supporting seat; 5320 - rack; 5330 - adjusting motor; 5340 - adjusting gear; 5350 - fixed plate; 5360 - guide rod; 540 - camera. DETAILED DESCRIPTION

[0030] The core of the present application is to disclose a power plant equipment maintenance platform, which has the advantages of automatic walking in the axial direction of the equipment and comprehensive detection in the circumferential direction.

[0031] In order to make the person skilled in the art better understand the scheme of the present application, the embodiments of the present application are described below with reference to the drawings, and in addition, the embodiments shown below do not have any limiting effect on the invention content recorded in the claims. In addition, all the contents of the constitution represented in the following embodiments are not limited to the solutions necessary for the invention recorded in the claims.

[0032] As Figure 1As shown, the power plant equipment maintenance platform provided by the present disclosure mainly comprises a walking device 1 and a scanning device 2, wherein the walking device 1 is used to realize the height change of the power plant equipment maintenance platform on the target equipment, so that the power plant equipment maintenance platform can reach and lock at different positions of the target equipment in the vertical direction, and the scanning device 2 is used to obtain the image information of the target equipment to feed back the maintenance requirements of the operator equipment. The combination of the walking device 1 and the scanning device 2 realizes the automatic maintenance of the surface of the target equipment, reduces the labor cost and the difficulty of manual operation.

[0033] Specifically, in the above embodiment, the walking device 1 mainly comprises a walking assembly 20 and a locking assembly 30. After the power plant equipment maintenance platform is arranged around the outer wall of the target equipment, the walking assembly 20 is used to realize the position adjustment of the maintenance platform in the axial direction of the target equipment, and the locking assembly 30 is used to realize the locking when the maintenance platform needs to stop at the target height. For the equipment with a certain height, the walking device 1 can realize the height climbing of the maintenance platform to meet the maintenance requirements of different heights. On this basis, the scanning device 2 comprises a movement base 40 arranged on the walking device 1 and a visual sensing assembly 50 slidingly arranged along the movement base 40. The visual sensing assembly 50 is used to obtain and feed back the image information, so that the automatic acquisition of the equipment condition can be realized by the power plant equipment maintenance platform without manual climbing of the equipment. The movement base 40 is arranged to realize the movement requirement of the visual sensing assembly 50. The visual sensing assembly 50 can have a certain range of movement in the circumferential direction of the walking device 1, so as to obtain the image information of the target equipment in a larger range. A large number of visual structures do not need to be arranged on the walking device 1 to obtain the image information of the target equipment, which reduces the structural cost of the power plant equipment maintenance platform.

[0034] The power plant equipment maintenance platform provided by the present disclosure not only realizes the movement and locking in the height direction of the target equipment through the walking device 1, but also realizes the automatic acquisition of the image of the target equipment to judge the maintenance requirement through the arrangement of the movement base 40 and the visual sensing assembly 50 of the scanning device 2. For the target equipment with a complex outer wall surface state such as smoothness and inclination, the arrangement of the movement base 40 can realize the acquisition of the information of multiple regions by the visual sensing assembly 50, without manual operation around the target equipment, thereby reducing the labor cost and improving the safety of the equipment maintenance process.

[0035] In order to further optimize the above technical solution, such as Figure 1 and Figure 5As shown, in some embodiments of the present disclosure, the motion base 40 is a closed structure arranged around the target device, which can be annular, or triangular, rectangular structure, preferably annular structure to reduce the risk of visual sensing assembly 50 motion dead angle. And the visual sensing assembly 50 includes a motorized slide 510 that is in sliding fit with the motion base 40, and the motorized slide 510 is driven to move along the guide area of the motion base 40 to drive the visual sensing assembly 50 to move. The motion base 40 arranged around the target device can make the power plant equipment maintenance platform realize image acquisition of each area of the target device in the circumferential direction by a single visual sensing assembly 50, so that the power plant equipment maintenance platform can realize comprehensive inspection of the target device at a lower cost.

[0036] Specifically, in order to reduce the slip risk of the walking device 1 frequently moving and improve the detection effect of the visual sensing assembly 50, as shown in Figure 1 and Figure 2 As shown, in some embodiments of the present disclosure, the visual sensing assembly 50 mainly includes an angle adjusting part 520, a distance adjusting part 530 and a camera 540, wherein the camera 540 is an element for directly acquiring image information of the target device, and the angle adjusting part 520 and the distance adjusting part 530 are used to adjust the pitch angle of the camera 540 and the distance between the camera 540 and the target device. When the power plant equipment maintenance platform is locked to a single position on the target device under the action of the walking device 1, the camera 540 has a larger image acquisition range through the angle adjusting part 520 and the distance adjusting part 530, thereby increasing the distance between the adjacent two working positions of the walking device 1, reducing the motion switching times of the walking device 1 under the premise that the height of the target device is constant, and improving the maintenance efficiency.

[0037] On this basis, the distance adjusting part 530 comprises a support base 5310 and a rack 5320 arranged on the support base 5310, the support base 5310 is used to provide a bearing base for arranging the rack 5320, and the support base 5310 is provided with an adjusting motor 5330, the output end of the adjusting motor 5330 is connected with an adjusting gear 5340, the adjusting gear 5340 is engaged with the rack 5320, so as to realize the telescopic movement of the rack 5320 in the length direction by the driving action of the adjusting motor 5330. The camera 540 is fixedly arranged on one side of the rack 5320, which can be supported by a plate to change the position during the telescopic movement of the rack 5320, and the relative angle between the rack 5320 and the target device is adjusted, so that the distance between the camera 540 and the target device is adjusted during the telescopic movement of the rack 5320. It should be noted that, in order to improve the stability of the rack 5320 during the telescopic movement and reduce the shaking risk of the camera 540, in some embodiments of the present disclosure, a fixed plate 5350 is arranged on one side of the rack 5320, one end of the rack 5320 is fixed to the fixed plate 5350, and at least two guide rods 5360 are connected to the fixed plate 5350, the guide rods 5360 are arranged in parallel with the rack 5320 and pass through the limiting structure of the fixed base 320, the rack 5320 is limited by the limiting structure of the guide rods 5360 during the telescopic movement, so as to meet the straight line movement requirement and improve the stability of the distance adjusting process of the camera 540 and the target device.

[0038] The angle adjusting part 520 mainly comprises a rotating seat 5210, an electric push rod 5220 and a tension spring 5230. The rotating seat 5210 is a bearing structure comprising two base seats 5250 arranged at intervals to be connected with the support seat 5310 from opposite sides, and the support seat 5310 is rotatably arranged on the rotating seat 5210 through the base seats 5250. On this basis, the electric push rod 5220 is connected with a rotating plate 5240, which drives the support seat 5310 through the push-pull action of the electric push rod 5220. It should be noted that the connecting point of the rotating plate 5240 on the support seat 5310 is located in the region between the mounting points of the support seat 5310 and the two base seats 5250. For example, for a quadrilateral support seat 5310, the mounting points of the support seat 5310 and the two base seats 5250 are located on two parallel edges, and the connecting point of the connecting plate on the support seat 5310 is located on the side edge of the support seat 5310 which is not connected with the base seat 5250, so that the support seat 5310 can be smoothly turned when the force is applied through the rotating plate 5240. At the same time, the tension spring 5230 is connected to the side of the support seat 5310 opposite to the rotating plate 5240. During the process of driving the support seat 5310 to rotate by the electric push rod 5220 through the rotating plate 5240, the angle of the camera 540 relative to the target device changes to obtain a larger image scanning range. At the same time, the tension spring 5230 is always in a stretched state during the rotation of the support seat 5310 to apply a force opposite to the rotation direction to the support seat 5310, thereby keeping the support seat 5310 stable during rotation through the reverse tensioning action.

[0039] Further, the walking device 1 further comprises a mounting assembly 10. Specifically, as shown in Figure 1 and Figure 3 In the walking device 1, the mounting assembly 10 adopts a segmented assembly structure to be assembled around the target device, the walking assembly 20 comprises at least two groups of walking wheels 210 uniformly distributed along the circumference of the mounting assembly 10 and capable of bidirectional rotation, and the locking assembly 30 abuts against the surface of the device through the telescopic limiting block 310 to lock the whole walking device 1.

[0040] Specifically, for the mounting assembly 10, the segmented assembly structure refers to the annular frame formed by splicing two or more arc-shaped members, allowing quick assembly on the outer wall of the equipment, avoiding the operation difficulty and risk caused by overall hoisting. The bidirectional rotation capability of the walking wheel 210 refers to the rotation of the wheel body in the clockwise and counterclockwise directions under the driving action, enabling the device to move forward and backward along the axial direction of the equipment. The two or more walking wheels 210 in the walking assembly 20 are distributed equidistantly along the circumference, which can uniformly apply the abutting force to the target equipment through the walking wheels 210, so that the walking device 1 is relatively uniform in stress in all directions during walking, thereby improving the stability of the walking process. The telescopic limiting block 310 of the locking assembly 30 refers to a mechanical stop component with linear motion stroke, which generates friction braking force through compression. When the position needs to be fixed, the limiting block 310 of the locking assembly 30 extends to form one or more points of contact with the surface of the equipment. After the walking wheel 210 stops running, the falling tendency of the walking device 1 is offset by the pressure and friction of the limiting block 310, thereby satisfying the locking of the walking device 1 at any time. Correspondingly, in the moving state of the walking device 1, the limiting block 310 is retracted to ensure the effective walking driving action of the walking wheel 210.

[0041] Through the above technical solutions, the application achieves the purpose of safe and reliable autonomous movement and precise positioning on the surface of equipment with a certain height. The segmented installation structure shortens the equipment deployment time, the bidirectional walking wheel 210 group improves the bidirectional movement requirement, and the locking assembly 30 ensures the stability of the device during maintenance work, effectively solving the technical problems of low efficiency and high risk of manual high-altitude operation.

[0042] Further, in some embodiments of the present disclosure, the locking assembly 30 and the walking assembly 20 are spaced apart in the axial direction of the mounting assembly 10 and are one-to-one corresponding. It should be noted that the axial spacing means that the locking assembly 30 and the walking assembly 20 are kept a certain distance along the axial direction of the mounting assembly 10, so that the locking assembly 30 does not overlap with the movement track of the walking wheel 210 when it acts, avoiding mutual influence. One-to-one correspondence means that each walking assembly 20 is configured with a corresponding locking unit to realize standardized installation of the equipment, and the driving force and locking force of the walking device 1 can be applied in the same linear direction along the outer surface of the target equipment, thereby making the process of moving the walking device 1 to locking more stable.

[0043] In order to further optimize the above technical solutions, such as Figure 4As shown, in some embodiments of the present disclosure, the locking assembly 30 comprises a fixed seat 320 and a power part 330. Specifically, the fixed seat 320 has a hollow cavity, and the limiting block 310 is slidingly arranged in the cavity of the fixed seat 320. The fixed seat 320 provides sliding track constraint for the limiting block 310 through its cavity structure. Considering the common working conditions, the first wall of the limiting block 310, i.e. the side wall surface facing the target device, is a contact surface matched with the curvature of the outer wall of the target device, so as to increase the contact area and realize stable fitting with the outer wall of the target device.

[0044] The power part 330 is an actuator for generating linear driving force, which can be an electric push rod 5220 or an air cylinder, and is connected to the limiting block 310 through a rigid connecting rod or a gear rack that can realize linear driving.

[0045] Specifically, after the power part 330 is started, it can push the limiting block 310 to slide towards the outer wall of the target device. At this time, the arc-shaped wall surface of the limiting block 310 completely fits the surface of the device, forming a surface contact locking to realize the positioning of the walking device 1. In the unlocked state, the power part 330 reverses the action to retract the limiting block 310 into the cavity, so that the arc-shaped wall surface is separated from the surface of the device. In this process, the cavity of the fixed seat 320 guides the sliding track of the limiting block 310, ensuring that the contact surface always maintains a parallel state with the outer wall of the device, reducing the risk of locking failure when the contact is inclined.

[0046] It should be noted that, by fitting the arc-shaped wall surface of the limiting block 310 with the curved surface of the outer wall of the device, the present scheme uniformly disperses the contact pressure to the entire contact area, improves the locking stability, solves the problem of insufficient locking contact stability, and avoids damage to the surface of the device caused by excessive local stress. The transmission and driving mode of the power part 330 replaces manual operation, so that the response speed of the locking action is improved, and precise displacement control can be realized through the control system. The sliding constraint of the cavity of the fixed seat 320 on the limiting block 310 eliminates the possible lateral deviation during the locking process, ensuring the consistency of the locking position.

[0047] On the basis of the above-mentioned embodiments, in order to improve the driving stability of the power part 330 to the limiting block 310, the output end of the power part 330 is connected with a pushing block 340, the pushing block 340 is located in the cavity of the fixed seat 320, and can move along the thickness direction of the fixed seat 320 under the driving of the power part 330, here the thickness direction of the fixed seat 320 is the axial direction of the target device. Specifically, the pushing block 340 refers to a rigid transmission component directly connected with the output end of the power part 330, for transmitting the linear driving force of the power part 330 to the limiting block 310. And the pushing block 340 is in abutment with the limiting block 310 through the driving slope 3410, the driving slope 3410 refers to an inclined structure arranged on the contact surface of the pushing block 340 and the limiting block 310, which can be designed with an inclined angle of 45 degrees to 60 degrees, for converting the linear motion of the pushing block 340 into the radial displacement of the limiting block 310. On this basis, the limiting block 310 is kept in continuous abutment with the fixed seat 320 through the elastic force of the limiting spring 350, the limiting spring 350 is arranged between the limiting block 310 and the fixed seat 320 and adopts a cylindrical helical compression spring, so as to provide continuous elastic pre-tightening force during the movement of the limiting block 310.

[0048] Specifically, when the extending action of the limiting block 310 is needed, the power part 330 is started, the pushing block 340 is driven to move linearly along the thickness direction of the fixed seat 320, the driving slope 3410 of the pushing block 340 comes into contact with the limiting block 310, and the linear motion of the pushing block 340 is decomposed into the radial displacement component of the limiting block 310 by means of the inclined angle of the driving slope 3410, so as to make the limiting block 310 extend outward against the elastic force of the limiting spring 350, and at the same time, the limiting spring 350 always exerts an opposite force on the limiting block 310 during the movement of the limiting block 310. When the power part 330 drives the pushing block 340 to move away from the limiting block 310, the elastic force of the limiting spring 350 can drive the limiting block 310 to move back, and the limiting block 310 can uniformly retreat under the guidance of the driving slope 3410, so as to realize the stable operation of the limiting block 310.

[0049] In order to further improve the stability of the movement process of the limiting block 310, in some embodiments of the present disclosure, the second wall of the limiting block 310 is connected with a slide rod 360. It should be noted that the slide rod 360 is a rod-shaped structure rigidly connected with the limiting block 310, which can be a round rod or a square rod, so as to provide axial movement guidance constraint for the limiting block 310 to prevent jamming caused by deviation. The end of the slide rod 360 away from the limiting block 310 is provided with a limiting disc 370, which can be fixed by welding or threaded connection, so as to provide a fixed end for the limiting spring 350 to form a stable elastic support system. Specifically, the limiting spring 350 is sleeved on the outer periphery of the slide rod 360, and the two ends are connected with the limiting disc 370 and the fixed seat 320 respectively. The pre-tightening force generated by the continuous compression state ensures that the limiting block 310 can always be subjected to the elastic force generated by the limiting spring 350 away from the surface of the target device, so that the limiting block 310 is in close contact with the pushing block 340 when it is stretched out to maintain stability, and can quickly respond with the help of elastic force when it is retracted, avoiding affecting the running of the walking wheel 210.

[0050] Further, in some embodiments of the present disclosure, the pushing block 340 includes a set of parallel limiting planes 3420, and it should be noted that one of the limiting planes 3420 is connected with the driving slope 3410 to be in a continuous state. When the limiting block 310 is in the stretched-out state, the pushing block 340 abuts against the fixed seat 320 and the second wall of the limiting block 310 through the set of limiting planes 3420. The limiting plane 3420 refers to two contact surfaces arranged on the surface of the pushing block 340 and parallel to each other, which are arranged on both sides in the stretching-out and retracting direction of the limiting block 310, and are used to form rigid support when the limiting block 310 is stretched out. In the process of converting the linear motion of the power part 330 into the lateral displacement of the limiting block 310, the limiting block 310 will run to the maximum stretched-out state. At this time, the position stability of the limiting block 310 can be realized through the continuous power output of the power part 330, and through the set of limiting planes 3420 in the present embodiment, the rigid abutment of the fixed seat 320 and the second wall of the limiting block 310 can be realized through the pair of limiting planes 3420 after the limiting block 310 runs to the maximum stretched-out state, so as to limit the retraction of the limiting block 310. At this time, the power part 330 can stop power output, the locking of the limiting block 310 is realized through the limiting plane 3420, so as to ensure that the limiting block 310 will not back off due to vibration or external force in the stretched-out state, and the position stability of the limiting block 310 in the limiting process is improved.

[0051] Through the technical scheme, the application realizes accurate guidance in the cooperation process of the pushing block 340 and the limiting block 310, and ensures the stability of the extending state of the limiting block 310. Through the rigid abutment of the limiting plane 3420 and the fixed seat 320, reliable reaction force support is formed, the abnormal retraction problem of the limiting block 310 is prevented, and the positioning reliability of the locking assembly 30 in the equipment maintenance operation is significantly improved.

[0052] Further, in some embodiments of the present disclosure, the walking assembly 20 comprises a rotating shaft 220 and a driving part 230, the first end of the rotating shaft 220 is fixedly connected with the walking wheel 210, and the second end of the rotating shaft 220 is driven to rotate by the driving part 230. The rotating shaft 220 refers to a rigid transmission component connecting the walking wheel 210 and the driving part 230, one end of which is fixedly connected with the walking wheel 210, and the other end forms a transmission connection structure with the driving part 230 for transmitting the rotary torque. The driving part 230 can adopt a motor or a hydraulic cylinder, which is connected with the second end of the rotating shaft 220 through an output end to realize bidirectional rotation control, so as to drive the walking wheel 210 to contact and roll with the outer wall of the equipment, thereby realizing the movement of the walking device 1.

[0053] In a specific embodiment of the present disclosure, the driving part 230 can adopt a servo motor or a stepping motor as a power source, and the motor output end is connected with a first gear 240 to directly drive the first gear 240 to rotate when the motor outputs, and the second end of the rotating shaft 220 is fixedly provided with a second gear 250, and the first gear 240 and the second gear 250 realize power transmission through meshing or a transmission belt 260. After the motor is started, the first gear 240 is driven to rotate by the output shaft, and the transmission of the first gear 240 and the second gear 250 transmits the rotary motion to the rotating shaft 220, and finally drives the walking wheel 210 to move along the outer wall of the equipment. When the transmission belt 260 mode is adopted, the first gear 240 is replaced by a driving pulley, the second gear 250 is replaced by a driven pulley, and the transmission belt 260 forms a closed loop around the two, and realizes power transmission through tooth meshing or friction. The two transmission modes can be flexibly switched according to the friction coefficient of the outer wall of the equipment, the walking load and the environmental noise requirement. In the scene where high torque output is required, the gear meshing mode is selected, and in the scene where vibration noise needs to be reduced, the transmission belt 260 mode is selected. It should be noted that the gear transmission mode has higher structural stability, and can directly be maintained and replaced with gears of different teeth to meet different transmission ratio requirements.

[0054] Further, in some embodiments of the present disclosure, the mounting assembly 10 comprises an arc-shaped first sleeve ring 110 and a second sleeve ring 120, wherein the first sleeve ring 110 and the second sleeve ring 120 are both half-circle structures, i.e. split ring members, the inner diameter of which is adapted to the outer diameter of the target equipment to be arranged at a designed interval from the target equipment, such as Figure 5The positioning member 130 is used to accurately position the first collar 110 and the second collar 120 when they are assembled, and the connection member 140 is used to lock the first collar 110 and the second collar 120 on this basis. In some embodiments, the positioning member 130 includes a plurality of positioning columns 1310 arranged on the end face of the first collar 110 and a plurality of positioning grooves 1320 arranged on the end face of the second collar 120, and the positioning columns 1310 and the positioning grooves 1320 are arranged one by one. When the first collar 110 and the second collar 120 are assembled, the positioning columns 1310 are inserted into the corresponding positioning grooves 1320 to complete the preliminary alignment and eliminate the circumferential deviation that may be generated during the assembly process. The connection member 140 includes a connection column 1410 arranged on the first collar 110 and the second collar 120 respectively, and a connection plate 1420 capable of being sleeved on both connection columns 1410. After the preliminary alignment of the first collar 110 and the second collar 120 is completed, the connection plate 1420 is inserted into the connection columns 1410 on both collars, and is locked with the connection columns 1410 through a locking ring 1430, which can be locked by screwing or buckling. The double action of the positioning member 130 and the connection member 140 forms a closed loop constraint, which ensures that the collars will not be misaligned when the butt joint is subjected to radial load.

[0055] In some embodiments, the positioning columns 1310 can be arranged in a cylindrical structure and equally distributed along the circumferential direction of the end face of the collar. The connection column 1410 can be designed in a square cross-section, and the inner wall of the connection plate 1420 can be provided with a rubber pad layer to buffer vibration and impact. The locking ring 1430 can be an annular structure with internal threads, and the axial compression force can be applied through threaded connection.

[0056] It should be noted that only the parts related to the invention are shown in the drawings for ease of description. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0057] As shown in the present application and claims, unless the context clearly indicates otherwise, the words "one", "an", "a", and / or "the" do not specifically refer to the singular, but can also include the plural. Generally, the terms "comprise" and "include" only indicate the inclusion of the steps and elements explicitly identified, and these steps and elements do not constitute an exclusive list. The element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, product or device comprising the element.

[0058] Hereinafter, the terms "first", "second", etc. are used only for the purpose of description, and are not to be construed as indicating or implying relative importance or a specific number of the technical features indicated. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0059] The above description is merely illustrative of the exemplary embodiments of the present application and the principles of the application, and is not to be construed as limiting the present application. The present application can be modified and varied in various changes and modifications without departing from the scope of the present application. The scope of the present application is not limited to the technical solutions formed by the specific combinations of the technical features described above, and should also cover other technical solutions formed by any combinations of the technical features described above or equivalent features thereof without departing from the inventive concept described above. For example, technical solutions formed by mutually replacing the technical features described above with technical features disclosed in the present application (but not limited to) having similar functions.

Claims

1. A power plant equipment maintenance platform, characterized in that, include: A traveling device is disposed around the outer wall of a target device. The traveling device includes a traveling component and a locking component. The traveling device adjusts its position along the axial direction of the target device through the traveling component and locks its position through the locking component. The scanning device includes a motion base fixedly mounted on the walking device, and a visual sensing component slidably mounted along the motion base, the visual sensing component being able to acquire and return image information.

2. The power plant equipment maintenance platform as described in claim 1, characterized in that, The motion base is a closed structure surrounding the target device; the visual sensing component includes an electric slider that slides in conjunction with the motion base.

3. The power plant equipment maintenance platform as described in claim 2, characterized in that, The visual sensing component includes an angle adjustment unit, a distance adjustment unit, and a camera. The angle adjustment unit is used to adjust the pitch angle of the camera, and the distance adjustment unit is used to adjust the distance between the camera and the target device.

4. The power plant equipment maintenance platform as described in claim 3, characterized in that, The distance adjustment unit includes a support base and a rack disposed on the support base. The camera is disposed on one side of the rack, and the rack meshes with an adjustment gear driven by an adjustment motor. The angle adjustment unit includes a rotating base, an electric push rod, and a tension spring. The support base is rotatably mounted on the rotating base. The electric push rod is connected to a rotating plate. The two opposite ends of the support base are respectively connected to the tension spring and the rotating plate, and the tension spring is in a continuously stretched state.

5. The power plant equipment maintenance platform as described in claim 1, characterized in that, The walking device includes a mounting assembly, which is a segmented assembly structure and is arranged around the target device; The walking assembly includes walking wheels for contacting the outer wall of the target device. The walking wheels are capable of rotating clockwise and counterclockwise, and at least two sets of the walking assembly are evenly arranged along the circumference of the mounting assembly. The locking assembly includes a telescopically oriented limiting block, and the limiting block can abut against the outer wall of the target device at its extended limit position to lock the walking device.

6. The power plant equipment maintenance platform as described in claim 5, characterized in that, The locking assembly includes a fixed base and a power unit. The fixed base has a hollow cavity. The limiting block is slidably disposed in the cavity of the fixed base, and the first wall of the limiting block is an arc-shaped wall surface that fits against the outer wall of the target device. The power unit is drivenly connected to the limiting block to drive the limiting block to slide in the cavity of the fixed base.

7. The power plant equipment maintenance platform as described in claim 6, characterized in that, The output end of the power unit is connected to a push block, which is located in the cavity of the fixed seat and moves along the thickness direction of the fixed seat under the drive of the power unit; the push block abuts against the limiting block through the driving inclined surface, and the limiting block maintains a continuous abutment effect with the fixed seat through the elastic force of the limiting spring.

8. The power plant equipment maintenance platform as described in claim 7, characterized in that, The second wall of the limiting block is connected to a sliding rod, and a limiting plate is provided at the end of the sliding rod away from the limiting block. The two ends of the limiting spring are connected to the limiting plate and the fixed seat, and are kept in a compressed state during the operation of the limiting block.

9. The power plant equipment maintenance platform as described in claim 8, characterized in that, The pushing block includes a set of parallel limiting planes, one of which is connected to the driving inclined surface; when the limiting block is in the extended state, the pushing block abuts against the fixed seat and the second wall of the limiting block through the set of limiting planes.

10. The power plant equipment maintenance platform as described in claim 5, characterized in that, The walking assembly includes a rotating shaft and a drive unit. The first end of the rotating shaft is fixedly connected to the walking wheel, and the second end of the rotating shaft is driven to rotate by the drive unit.

11. The power plant equipment maintenance platform as described in claim 10, characterized in that, The drive unit is a motor and its output end is connected to a first gear. A second gear is fixedly installed at the second end of the rotating shaft. The first gear meshes with the second gear or is driven by a transmission belt.

12. The power plant equipment maintenance platform as described in claim 5, characterized in that, The mounting assembly includes an arc-shaped first ring and a second ring, both of which are semi-circular structures and are joined together by positioning and connecting parts to form a circular ring.

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