Spraying device based on hydropower station pipeline machining

Abstract

The invention relates to the technical field of spraying, in particular to a spraying device based on hydropower station pipeline processing, comprising: a support column coaxially arranged with a to-be-sprayed pipeline and used for bearing other parts; the walking assembly is used for driving the supporting column to walk in the pipeline to be sprayed; the spraying assembly is arranged in the middle of the supporting column; the walking assembly comprises a driving ring which slides in the axis direction of the supporting column; the first adjusting assemblies are evenly distributed around the supporting column in a circumferential array shape. Each first adjusting assembly comprises two first swing rods arranged in parallel, and one ends of the two first swing rods are rotationally connected with the supporting column. An adjusting plate is further included, a walking mechanism is arranged on the adjusting plate, and the other ends of the two first swing rods are rotationally connected with the adjusting plate; one end of the sliding block is rotatably connected with the driving ring, and the other end of the sliding block is slidably connected with one of the first swing rods; the position of the nozzle can be automatically changed along with the robot adapting to the inner diameters of different pipelines, independent adjustment is not needed, and efficient and uniform spraying of the inner walls of the pipelines with different diameters is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of spraying, and in particular to a spraying device for processing pipelines of a hydropower station. Background Art

[0002] During the construction and maintenance of hydropower stations, pipelines are an important component, and the quality of their inner walls directly affects the safe operation and service life of the power station. In order to improve the corrosion resistance and wear resistance of pipelines, it is usually necessary to coat the inner walls of the pipelines. Traditional spraying methods mainly rely on manual operations, which are not only inefficient, but also difficult to ensure the uniformity and thickness of the coating, especially in pipeline construction with complex shapes and narrow spaces.

[0003] In recent years, with the development of automation technology, more and more walking robots have been used in the spraying of pipe inner walls. Such robots can autonomously navigate and adapt to pipes of different diameters, significantly improving construction efficiency and quality. However, existing pipe spraying robots still have some technical bottlenecks, especially in the adjustment of nozzle position: most robots use a fixed nozzle layout design, which means that the relative position between the nozzle and the pipe wall cannot be automatically adjusted in pipes of different diameters. This results in the nozzle being too close to the pipe wall when spraying in small diameter pipes, causing local over-thickness; and in large diameter pipes, uneven spraying may occur. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a spraying device for processing pipelines in hydropower stations. The nozzle position can be automatically changed as the robot adapts to different pipeline inner diameters without the need for separate adjustment, thereby achieving efficient and uniform spraying of the inner walls of pipelines with different diameters.

[0005] The present invention discloses a spraying device for processing pipelines in a hydropower station, comprising:

[0006] A support column is arranged coaxially with the pipe to be sprayed and is used to carry other components;

[0007] A walking assembly is used to drive the support column to move in the pipeline to be sprayed;

[0008] A spraying assembly is arranged in the middle of the supporting column;

[0009] Among them, the walking components include:

[0010] A driving ring slides along the axis of the support column;

[0011] A plurality of adjustment components are uniformly distributed around the support column in a circular array; each adjustment component includes two swing rods arranged in parallel, one end of each of the two swing rods being rotatably connected to the support column; an adjustment plate is provided with a walking mechanism, and the other ends of each of the two swing rods are rotatably connected to the adjustment plate; a slider is also included, one end of the slider is rotatably connected to the driving ring, and the other end of the slider is slidably connected to one of the swing rods;

[0012] A power mechanism 1 is fixed on the support column, and the power mechanism 1 is used to drive the driving ring to slide;

[0013] When the driving ring slides, it drives the swing rod to change its angle, thereby controlling the distance between the walking mechanism and the pipe to be sprayed;

[0014] Among them, the spraying components include:

[0015] A sleeve is coaxially rotatably connected with the support column;

[0016] A plurality of adjustment components 2 are evenly distributed around the support column in a circular array; each adjustment component 2 includes a swing rod 2, the swing rod 2 is parallel to the swing rod 1, one end of the swing rod 2 is rotatably connected to the sleeve, and the other end of the swing rod 2 is rotatably provided with a spraying mechanism, and the spraying mechanism is fixed with an adjustment block;

[0017] A rotating ring is rotatably mounted on the driving ring, and all adjusting blocks slide along the radial direction of the rotating ring;

[0018] It also includes a driving mechanism 1 for driving the walking mechanism to move and a driving mechanism 2 for driving the sleeve to rotate.

[0019] As a preferred embodiment of the present invention, the spraying mechanism comprises:

[0020] A spraying seat, wherein a nozzle and an air jet are arranged on the side of the spraying seat facing the inner wall of the pipe to be sprayed;

[0021] There are multiple nozzles and multiple jet ports, and the two are arranged alternately;

[0022] The spraying seat is also provided with an air return port.

[0023] As a preferred solution of the present invention, three annular chambers are arranged in the middle of the support column, the sleeve is rotatably mounted outside the three annular chambers, and one end of the support column extends into three pipes connected to the three annular chambers respectively;

[0024] The spraying mechanism also includes three pipes 2, one end of the three pipes 2 is respectively connected with the three annular chambers, and the other end is respectively connected with the nozzle, the air jet and the return air port.

[0025] As a preferred solution of the present invention, two semicircular plates are symmetrically arranged at the medium outlet of the nozzle.

[0026] As a preferred solution of the present invention, the walking assembly further comprises a sliding ring, the sliding ring is sleeved on the supporting column, and the driving ring is fixedly connected to the sliding ring.

[0027] As a preferred solution of the present invention, the walking mechanism includes:

[0028] Two supporting shafts are rotatably mounted on the adjustment plate; each supporting shaft is provided with two rollers sliding along its axis direction, and an annular groove is provided on the outer side of the two rollers;

[0029] The walking belt is wrapped around the rollers of the two supporting shafts, and the sides of the walking belt are all clamped in the annular grooves of the corresponding rollers.

[0030] As a preferred solution of the present invention, the driving mechanism 1 includes:

[0031] Multiple reversing mechanisms, each adjusting plate is provided with a reversing mechanism; each reversing mechanism includes a steering shaft and a driving shaft rotating on the adjusting plate, the two ends of the steering shaft are respectively connected to a support shaft and one end of the driving shaft, each driving shaft is fixedly connected to a driven wheel, and the axis of each driven wheel is parallel to the axis of the support column;

[0032] The power mechanism 2 is fixed to the surface of the support column, and a driving wheel is installed at the output end of the power mechanism 2;

[0033] A plurality of tension wheels, one less than the driven wheel, are distributed around the support column, the tension wheels are elastically slidably connected along the radial direction of the support column, and the distance between the tension wheel and the center of the support column is smaller than the distance between the driven wheel and the center of the support column;

[0034] A tension wheel or a driving wheel is arranged between adjacent driven wheels;

[0035] The transmission belt is sleeved on the driving wheel, the driven wheel and the tensioning wheel.

[0036] As a preferred solution of the present invention, the walking mechanism further includes:

[0037] Multiple centering components, one centering component for each supporting axis;

[0038] Each centering component consists of:

[0039] A center rod, the middle portion of which is rotatably mounted on the middle portion of the support shaft;

[0040] Two pulling rods, one end of the pulling rod is rotatably connected to the roller, and the other end of the pulling rod is rotatably connected to the end of the center rod.

[0041] As a preferred solution of the present invention, the second driving mechanism comprises:

[0042] Power mechanism three, fixed to the surface of the support column;

[0043] A gear ring is coaxially fixed on the outer wall of the sleeve;

[0044] The gear is fixed to the third output end of the power mechanism, and the gear is meshed with the ring gear.

[0045] As a preferred solution of the present invention, there are two walking assemblies, which are respectively arranged on both sides of the support column.

[0046] Compared with the prior art, the beneficial effects of the present invention are as follows: through the axial movement of the driving ring and the lateral movement of the adjusting plate, the walking mechanism can automatically adjust the distance from the inner wall of the pipe according to the different inner diameters of the pipe, which greatly enhances the adaptability of the equipment to pipes of different sizes. The position of the spraying mechanism can also be adjusted with the movement of the walking mechanism to ensure that the distance between the nozzle and the inner wall of the pipe remains consistent during spraying, thereby improving the spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the structure of the present invention;

[0048] Figure 2 yes Figure 1 A front view of

[0049] Figure 3 yes Figure 2 Sectional view of the middle AA section;

[0050] Figure 4 It is a structural schematic diagram of a support column, a single walking assembly, a driving mechanism 1, a driving mechanism 2 and a spraying assembly;

[0051] Figure 5 It is a structural schematic diagram of a single adjustment component 1, a single adjustment component 2, an adjustment plate, a walking mechanism, a driving mechanism 2, etc.;

[0052] Figure 6 It is a cross-sectional view of the adjustment plate and the walking mechanism;

[0053] Figure 7 It is a cross-sectional view of the walking mechanism;

[0054] Markings in the attached drawings: 1, support column; 2, walking assembly; 21, driving ring; 22, adjusting assembly 1; 221, swing rod 1; 222, adjusting plate; 223, walking mechanism; 2231, supporting shaft; 2232, roller; 2233, walking belt; 2234, center rod; 2235, pulling rod; 224, slider; 23, power mechanism 1; 24, sliding ring; 3, spraying assembly; 31, sleeve; 32, adjusting assembly 2; 321, swing rod 2; 322, spraying mechanism; 3221, spraying Seat; 3222, nozzle; 3223, jet port; 3224, return air port; 3225, pipe 2; 3226, semicircular plate; 323, adjustment block; 33, rotating ring; 4, driving mechanism 1; 41, steering shaft; 42, driving shaft; 43, worm; 44, driven wheel; 45, power mechanism 2; 46, driving wheel; 47, tensioning wheel; 48, elastic member; 49, transmission belt; 5, driving mechanism 2; 51, power mechanism 3; 52, gear ring; 53, gear; 6, annular chamber; 7, pipe 1. DETAILED DESCRIPTION

[0055] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0056] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0057] Secondly, the term "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0058] Example

[0059] Reference Figure 1-Figure 7 This embodiment provides a spraying device for processing pipelines in a hydropower station, comprising:

[0060] Support column 1, arranged coaxially with the pipe to be sprayed, for supporting other components;

[0061] A walking assembly 2, used for driving the support column 1 to walk in the pipeline to be sprayed;

[0062] The spraying assembly 3 is arranged in the middle of the support column 1;

[0063] Wherein, the walking component 2 includes:

[0064] The driving ring 21 slides along the axis direction of the supporting column 1;

[0065] Reference Figure 2-Figure 5 , multiple adjustment components 22 are evenly distributed around the support column 1 in a circular array; each adjustment component 22 includes two parallel swing rods 221, one end of the two swing rods 221 is rotatably connected to the support column 1; it also includes an adjustment plate 222, a walking mechanism 223 is provided on the adjustment plate 222, the other ends of the two swing rods 221 are rotatably connected to the adjustment plate 222, and the two swing rods 221, the adjustment plate 222 and the support column 1 form a parallelogram connecting rod structure; it also includes a slider 224, one end of the slider 224 is rotatably connected to the driving ring 21, the other end of the slider 224 is slidably connected to one of the swing rods 221, and the slider 224 is perpendicular to the swing rod 221;

[0066] Reference Figure 1 and Figure 5 , a power mechanism 23 is fixed on the support column 1, and the power mechanism 23 is used to drive the driving ring 21 to slide. The power mechanism 23 adopts a cylinder, an oil cylinder or an electric telescopic rod. In order to improve the movement stability of the driving ring 21, a plurality of power mechanisms 23 can be provided, and the plurality of power mechanisms 23 act synchronously to improve stability;

[0067] When the driving ring 21 slides, the angle of the swing rod 221 is driven to change, thereby controlling the distance between the walking mechanism 223 and the pipe to be sprayed;

[0068] Wherein, the spraying assembly 3 comprises:

[0069] The sleeve 31 is coaxially rotatably connected to the support column 1;

[0070] Reference Figure 2-Figure 5 , a plurality of adjustment components 2 32 are evenly distributed around the support column 1 in a circular array; each adjustment component 2 32 includes a swing rod 2 321, the swing rod 2 321 is parallel to the swing rod 1 221, one end of the swing rod 2 321 is rotatably connected to the sleeve 31, and the other end of the swing rod 2 321 is rotatably provided with a spraying mechanism 322, and the spraying mechanism 322 is fixed with an adjustment block 323;

[0071] The rotating ring 33 is rotatably mounted on the driving ring 21, and all the adjusting blocks 323 slide along the radial direction of the rotating ring 33;

[0072] It also includes a driving mechanism 1 4 for driving the walking mechanism 223 to move and a driving mechanism 2 5 for driving the sleeve 31 to rotate;

[0073] The specific working process of this device is as follows:

[0074] The specific working process of the walking assembly 2 and the driving mechanism 4 is as follows: as the power mechanism 23 works, the driving ring 21 will slide axially on the support column 1. Since the driving ring 21 and the slider 224 are rotationally connected, when the driving ring 21 moves, it will push the swing rod 221 through the slider 224, causing the angle of the swing rod 221 to change. Since the two swing rods 221, the adjustment plate 222 and the support column 1 form a parallelogram connecting rod structure, the change in the angle of the swing rod 221 will cause the position of the adjustment plate 222 to change, thereby enabling the walking mechanism 223 installed on the adjustment plate 222 to approach or move away from the inner wall of the pipe to be sprayed. In this way, the position of the walking mechanism 223 can be adjusted according to the required inner diameter of the pipe to ensure the smooth progress of the spraying operation. After the adjustment is completed, the driving mechanism 4 is used to drive the walking mechanism 223 to move, so that the device can move inside the pipe.

[0075] The specific working process of the spraying assembly 3 and the driving mechanism 25 is as follows: the driving mechanism 14 drives the walking mechanism 223 to move, so that the device moves inside the pipeline. In this process, the driving mechanism 25 controls the sleeve 31, the adjusting assembly 232, the spraying mechanism 322 and the rotating ring 33 to rotate around the support column 1. The spraying mechanism 322 sprays the inner wall of the pipeline during the rotation process. In the above process, the driving ring 21 is rotatably connected with the rotating ring 33, and the rotation of the rotating ring 33 will not affect the driving ring 21.

[0076] When the position of the walking mechanism 223 is adjusted, the driving ring 21 drives the rotating ring 33 to move along the axis of the support column 1. Since the adjustment block 323 slides in the radial direction of the rotating ring 33 and does not rotate, and the two ends of the swing rod 321 are respectively rotatably connected to the support column 1 and the spraying mechanism 322, when the driving ring 21 moves along the axis of the support column 1, the spraying mechanism 322 also moves closer to or away from the inner wall of the pipe to be sprayed with the walking mechanism 223.

[0077] In traditional pipeline spraying operations, several problems are often encountered: slow drying speed and difficulty in effectively discharging exhaust gas inside the pipeline. These problems not only affect the spraying quality, but may also lead to low production efficiency and deterioration of the working environment. Figure 3-Figure 5 As a preferred embodiment of the present invention, the spraying mechanism 322 includes:

[0078] A spraying seat 3221 is provided with a nozzle 3222 and an air jet 3223 on one side of the spraying seat 3221 facing the inner wall of the pipe to be sprayed. The nozzle 3222 is used to spray the coating material, and the air jet 3223 is used to spray hot air. The hot air can dry the inner wall of the pipe immediately after spraying, thereby accelerating the curing speed of the coating, shortening the overall operation time, and improving production efficiency.

[0079] There are multiple nozzles 3222 and multiple jet ports 3223, and the two are arranged alternately. Figure 4 As shown, the direction of the nozzle 3222 is opposite to the walking direction. The reversely arranged nozzle 3222 reduces splashing and waste during the spraying process, saves the amount of paint, and reduces production costs; the alternately arranged nozzle 3222 and the air jet 3223 ensure the uniform distribution of the coating material and the hot air, avoids the problem of local over-thickness or over-thinness of the spraying, and improves the spraying quality;

[0080] The spray seat 3221 is also provided with a return air port 3224, which effectively collects and processes the exhaust gas in the pipeline, reduces the emission of harmful substances, meets environmental protection requirements, and protects the working environment and the health of workers.

[0081] In traditional pipeline spraying devices, spraying, drying or suction are often not reasonably integrated, resulting in complex equipment structure and inconvenient maintenance and repair. Figure 3 As a preferred solution of the present invention, three annular chambers 6 are arranged in the middle of the support column 1, and the sleeve 31 is rotatably mounted outside the three annular chambers 6. One end of the support column 1 extends into three pipes 7 respectively connected to the three annular chambers 6, and the other end of the pipe 7 is connected to the outside. The pipe 7 adopts a hose, and the three pipes 7 are respectively used to promote the flow of spraying materials, hot air and exhaust gas in the three annular chambers 6;

[0082] The spraying mechanism 322 also includes three pipes 2 3225, one ends of the three pipes 2 3225 are respectively connected to the three annular chambers 6, and the other ends are respectively connected to the nozzle 3222, the jet port 3223 and the return air port 3224. In order to adapt to the movement of the spraying mechanism 322, the pipes 2 3225 are made of hose material. The three pipes 2 3225 connect the nozzle 3222, the jet port 3223 and the return air port 3224 with the three pipes 1 7, so that the material flows between the annular chamber 6 and the nozzle 3222, the jet port 3223 and the return air port 3224.

[0083] In traditional pipeline spraying devices, the design of the nozzle 3222 is often relatively simple, and the medium outlet directly sprays the material. This design has obvious shortcomings. As a preferred embodiment of the present invention, two semicircular plates 3226 are symmetrically arranged at the medium outlet of the nozzle 3222, so that the material is first compressed and then released when flowing through the semicircular plates 3226, thereby significantly increasing the spraying range and improving the spraying efficiency and uniformity.

[0084] Reference Figure 4-Figure 5If the single component of the driving ring 21 slides directly on the support column 1, it is easy to shake and deviate, resulting in the movement of the walking mechanism 223 not being smooth enough. As a preferred solution of the present invention, the walking assembly 2 also includes a sliding ring 24, and the sliding ring 24 is mounted on the support column 1. The driving ring 21 and the sliding ring 24 are fixedly connected by a connecting plate. When the power mechanism 23 is activated, the sliding ring 24 and the driving ring 21 slide synchronously along the axis of the support column 1, which can improve the stability of the driving ring 21 when moving and ensure the smooth operation of the walking mechanism 223.

[0085] In a conventional pipeline spraying device, the design of the walking mechanism 223 is often relatively simple, and usually uses a fixed walking wheel or a simple belt drive. This design has an obvious disadvantage: the contact area between the walking belt 2233 and the inner wall of the pipeline cannot be adjusted with the inner diameter of the pipeline, resulting in poor stability and adaptability of the walking mechanism 223 in pipelines of different diameters, and it is easy to slip or jam. In order to solve this problem, reference is made to Figure 6-Figure 7 The present invention provides an optimized walking mechanism 223, and the walking mechanism 223 includes:

[0086] Two support shafts 2231 are rotatably mounted on the adjustment plate 222; each support shaft 2231 is provided with two rollers 2232 sliding along its axis direction, and an annular groove is provided on the outer side of the two rollers 2232;

[0087] The walking belt 2233 is wrapped around the rollers 2232 of the two support shafts 2231, and the sides of the walking belt 2233 are stuck in the annular grooves of the corresponding rollers 2232. The walking belt 2233 is made of elastic material, such as rubber, polyurethane, etc., and the middle part of the walking belt 2233 is slightly bulged;

[0088] The specific working process of the walking mechanism 223 is as follows: when the power mechanism 23 moves to make the walking belt 2233 of the walking mechanism 223 contact the inner wall of the pipe, the walking belt 2233 becomes flat as a whole due to the obstruction of the pipe, so that the two ends of the walking belt 2233 move outward, and then the two rollers 2232 slide relative to the support shaft 2231, so that the contact area between the walking belt 2233 and the inner wall of the pipe can be adjusted according to the inner diameter of the pipe, thereby ensuring the stability and adaptability of the walking mechanism 223 in pipes of different diameters. After the walking belt 2233 is separated from the inner wall of the pipe, the walking belt 2233 returns to its original state, driving the rollers 2232 to return to their initial positions.

[0089] In a conventional pipeline spraying device, the power transmission system of the walking mechanism 223 usually requires multiple independent power sources to drive different walking components 2. It is difficult for multiple power sources to ensure complete synchronization of all walking components 2, which easily leads to inconsistent movement and affects the accuracy and quality of the spraying operation. As a preferred solution of the present invention, refer to Figure 4-Figure 5 , the driving mechanism 4 includes:

[0090] Multiple reversing mechanisms, each adjusting plate 222 is provided with a reversing mechanism; each reversing mechanism includes a steering shaft 41 and a driving shaft 42 rotating on the adjusting plate 222, and the two ends of the steering shaft 41 are respectively connected to a support shaft 2231 and one end of the driving shaft 42. More specifically, a worm 43 is fixed to both ends of the steering shaft 41, and a worm wheel meshing with the worm 43 is fixed to the support shaft 2231 and the driving shaft 42 at the corresponding position; each driving shaft 42 is fixedly connected to a driven wheel 44, and the axis of each driven wheel 44 is parallel to the axis of the support column 1;

[0091] The second power mechanism 45, which adopts a servo motor, is fixed to the surface of the support column 1, and a driving wheel 46 is installed at the output end of the second power mechanism 45;

[0092] A plurality of tensioning wheels 47, one less than the driven wheel 44, are distributed around the support column 1, and the tensioning wheel 47 is elastically slidably connected along the radial direction of the support column 1. More specifically, a bearing seat for rotating and supporting the tensioning wheel 47 slides along the radial direction of the support column 1, and one end of an elastic member 48 is fixed to the surface of the support column 1, and the other end of the elastic member 48 is connected to the bearing seat. The elastic force of the elastic member 48 provides a force for the tensioning wheel 47 to move toward the support column 1; the distance between the tensioning wheel 47 and the center of the support column 1 is smaller than the distance between the driven wheel 44 and the center of the support column 1;

[0093] A tensioning wheel 47 or a driving wheel 46 is provided between adjacent driven wheels 44;

[0094] A transmission belt 49, which is sleeved on the driving wheel 46, the driven wheel 44 and the tensioning wheel 47;

[0095] The specific working process of the driving mechanism 4 is as follows: due to the elastic member 48, the tensioning wheel 47 always keeps the tendency to move toward the support column 1, so that the transmission belt 49 is tightened. When it is necessary to drive the walking belt 2233 to move, the power mechanism is turned on, and under the action of the transmission belt 49, the driving wheel, and the tensioning wheel 47, the driving shaft 42 and the driven wheel 44 are driven to rotate. Under the cooperation of the steering shaft 41, the worm wheel and the worm 43, the support shaft 2231 and the roller 2232 thereon are driven to rotate, thereby driving the walking belt 2233 to move;

[0096] When the distance between the walking mechanism 223 and the support column 1 increases, the tensioning wheel 47 moves outward under the pull of the transmission belt 49; when the distance between the walking mechanism 223 and the support column 1 decreases, the tensioning wheel 47 moves toward the support column 1 under the elastic force of the elastic member 48.

[0097] In order to prevent the rollers 2232 on both sides from being misaligned when the walking belt 2233 is deformed, the present invention provides an optimized walking mechanism 223. Figure 6-Figure 7 , the walking mechanism 223 also includes:

[0098] Multiple centering components, each support shaft 2231 corresponds to a centering component;

[0099] Each centering component consists of:

[0100] A center rod 2234, the middle portion of which is rotatably mounted on the middle portion of the support shaft 2231;

[0101] Two pulling rods 2235, one end of the pulling rod 2235 is rotatably connected to the roller 2232, and the other end of the pulling rod 2235 is rotatably connected to the end of the center rod 2234;

[0102] The specific working process of the centering component is as follows: when the walking belt 2233 is deformed, the roller 2232 may move outward. Through the connection between the center rod 2234 and the pulling rod 2235, the deviation of the roller 2232 can be effectively limited, ensuring that the roller 2232 always moves along the predetermined path, thereby maintaining the stability and accuracy of the walking mechanism 223.

[0103] In a conventional pipeline spraying device, the rotation drive system of the spraying assembly 3 usually adopts a complex transmission mechanism. In order to solve these problems, as a preferred solution of the present invention, referring to Figure 5 , the driving mechanism 25 comprises:

[0104] The power mechanism 3 51, the power mechanism 3 51 adopts a servo motor, which is fixed on the surface of the support column 1;

[0105] The gear ring 52 is coaxially fixed on the outer wall of the sleeve 31;

[0106] Gear 53 is fixed to the output end of power mechanism 3 51, and gear 53 is meshed with ring gear 52;

[0107] The specific working process of the driving mechanism 25 is as follows: after the servo motor is started, the gear 53 starts to rotate, and the gear 53 meshes with the ring gear 52. When the gear 53 rotates, through the meshing action of the ring gear 52, the sleeve 31 and the spraying mechanism 322 also rotate accordingly.

[0108] If the walking assembly 2 is only arranged on one side of the support column 1, it is easy to cause the phenomenon of uneven force on one side. In order to solve these problems, refer to Figure 1 As a preferred solution of the present invention, there are two walking components 2, which are respectively arranged on both sides of the support column 1. The two walking components 2 are symmetrically distributed on both sides of the support column 1, ensuring that the force of the support column 1 in the pipeline is balanced, avoiding tilting or deviation, and improving the stability and accuracy of the walking mechanism 223.

[0109] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0110] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A spraying device for processing pipelines in a hydropower station, characterized in that: include: A support column (1) is coaxially arranged with the pipeline to be sprayed and is used to carry other components; A walking assembly (2) is used to drive the support column (1) to move in the pipeline to be sprayed; A spraying assembly (3) is arranged in the middle of the support column (1); Wherein, the walking component (2) comprises: A driving ring (21) slides along the axis of the support column (1); A plurality of adjustment components (22) are uniformly distributed around the support column (1) in a circular array; each of the adjustment components (22) comprises two swing rods (221) arranged in parallel, one end of each of the two swing rods (221) being rotatably connected to the support column (1); an adjustment plate (222) is further provided with a walking mechanism (223), the other ends of each of the two swing rods (221) being rotatably connected to the adjustment plate (222); and a slider (224) is further provided, one end of each of the sliders (224) being rotatably connected to the drive ring (21), and the other end of each of the sliders (224) being slidably connected to one of the swing rods (221); A power mechanism (23) is fixed on the support column (1), and the power mechanism (23) is used to drive the drive ring (21) to slide; When the driving ring (21) slides, the angle of the swing rod (221) is driven to change, thereby controlling the distance between the walking mechanism (223) and the pipeline to be sprayed; Wherein, the spraying assembly (3) comprises: A sleeve (31) is coaxially rotatably connected to the support column (1); A plurality of adjustment components (2) (32) are uniformly distributed around the support column (1) in a circular array; each of the adjustment components (32) comprises a swing rod (2) (321), the swing rod (321) is parallel to the swing rod (221), one end of the swing rod (321) is rotatably connected to the sleeve (31), and the other end of the swing rod (321) is rotatably provided with a spraying mechanism (322), and the spraying mechanism (322) is fixed with an adjustment block (323); A rotating ring (33) is rotatably mounted on the driving ring (21), and all the adjusting blocks (323) slide along the radial direction of the rotating ring (33); It also includes a driving mechanism 1 (4) for driving the walking mechanism (223) to move and a driving mechanism 2 (5) for driving the sleeve (31) to rotate.

2. The spraying device for processing pipelines in a hydropower station according to claim 1, characterized in that: The spraying mechanism (322) comprises: A spraying seat (3221), wherein the spraying seat (3221) is provided with a nozzle (3222) and an air jet (3223) on a side facing the inner wall of the pipe to be sprayed; The nozzle (3222) and the air jet (3223) are both provided in plurality, and the two are arranged alternately; The spraying seat (3221) is also provided with an air return port (3224).

3. The spraying device for processing pipelines in a hydropower station according to claim 2, characterized in that: The support column (1) is provided with three annular chambers (6) in the middle, the sleeve (31) is rotatably mounted outside the three annular chambers (6), and one end of the support column (1) extends into three pipes (7) respectively connected to the three annular chambers (6); The spraying mechanism (322) further comprises three pipes (3225), one end of each of the three pipes (3225) being respectively connected to the three annular chambers (6), and the other end of each of the three pipes being respectively connected to the nozzle (3222), the jet port (3223) and the return air port (3224).

4. The spraying device for processing pipelines in a hydropower station according to claim 2, characterized in that: Two semicircular plates (3226) are symmetrically arranged at the medium outlet of the nozzle (3222).

5. The spraying device for processing pipelines in a hydropower station according to claim 1, characterized in that: The walking assembly (2) further comprises a sliding ring (24), wherein the sliding ring (24) is sleeved on the supporting column (1), and the driving ring (21) is fixedly connected to the sliding ring (24).

6. The spraying device for processing pipelines in a hydropower station according to claim 1, characterized in that: The walking mechanism (223) comprises: Two support shafts (2231) are rotatably mounted on the adjustment plate (222); each of the support shafts (2231) is provided with two rollers (2232) that slide along its axis direction, and an annular groove is provided on the outer sides of the two rollers (2232); The walking belt (2233) is wrapped around the rollers (2232) of the two supporting shafts (2231), and the sides of the walking belt (2233) are both stuck in the annular grooves corresponding to the rollers (2232).

7. The spraying device for processing pipelines in a hydropower station as claimed in claim 6 is characterized in that: The driving mechanism 1 (4) comprises: A plurality of reversing mechanisms, each of the adjustment plates (222) being provided with a reversing mechanism; each of the reversing mechanisms comprising a steering shaft (41) and a driving shaft (42) rotating on the adjustment plate (222), the two ends of the steering shaft (41) being respectively transmission-connected to a support shaft (2231) and one end of the driving shaft (42), each of the driving shafts (42) being fixedly connected to a driven wheel (44), and the axis of each driven wheel (44) being parallel to the axis of the support column (1); A second power mechanism (45) is fixed to the surface of the support column (1), and a driving wheel (46) is installed at the output end of the second power mechanism (45); a plurality of tension wheels (47), the number of which is one less than the driven wheel (44), and the tension wheels (47) are distributed around the support column (1); the tension wheels (47) are elastically slidably connected along the radial direction of the support column (1); and the distance between the tension wheel (47) and the center of the support column (1) is smaller than the distance between the driven wheel (44) and the center of the support column (1); A tension wheel (47) or a driving wheel (46) is arranged between adjacent driven wheels (44); A transmission belt (49), wherein the transmission belt (49) is mounted on the driving wheel (46), the driven wheel (44) and the tensioning wheel (47).

8. The spraying device for processing pipelines in a hydropower station as claimed in claim 6, characterized in that: The walking mechanism (223) further comprises: A plurality of centering components, each of the support shafts (2231) corresponds to one centering component; Each centering component consists of: A center rod (2234), the middle portion of which is rotatably mounted on the middle portion of the support shaft (2231); Two pulling rods (2235), one end of the pulling rod (2235) is rotatably connected to the roller (2232), and the other end of the pulling rod (2235) is rotatably connected to the end of the center rod (2234).

9. The spraying device for processing pipelines in a hydropower station according to claim 1, characterized in that: The second driving mechanism (5) comprises: A power mechanism three (51), fixed to the surface of the support column (1); A gear ring (52) coaxially fixed on the outer wall of the sleeve (31); A gear (53) is fixed to the output end of the power mechanism three (51), and the gear (53) is meshed with the gear ring (52).

10. The spraying device for processing pipelines in a hydropower station according to claim 1, characterized in that: There are two walking components (2), which are respectively arranged on both sides of the support column (1).

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