Brush plating device for repairing sealing surface of end part

Abstract

The electric brush plating device comprises a shell assembly, a clamping assembly, a brush plating assembly and a sealing assembly, and the shell assembly plays a role in packaging the clamping assembly, the brush plating assembly and the sealing assembly, protecting the clamping assembly, the brush plating assembly and the sealing assembly and conveying plating liquid. In the using process, the shell assembly is arranged at the position of a sealing face needing to be repaired, then a workpiece to be subjected to brush plating is clamped through the clamping assembly, the brush plating assembly is started, plating liquid is output through the brush plating assembly to modify the sealing face, meanwhile, the sealing assembly is started, the output plating liquid is blocked, and the plating liquid is prevented from flowing back; and the plating solution is prevented from flowing into other parts, for example, the plating solution is prevented from flowing into a pipeline. According to the electric brush plating device for repairing the sealing surface of the end part, the brush plating process is stable and reliable, the operation is simple and convenient, and a convenient tool is provided for repairing a nuclear facility pipeline sealing structure.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of nuclear power technology, and in particular to an electric brush plating device for repairing the sealing surface of an end component. Background Art

[0002] The core of a heavy water reactor nuclear power plant consists of hundreds of fuel channels, which are arranged in a close arrangement. The space environment is small, and the diameter of each fuel channel is about 160mm, the center distance is about 286mm, and the minimum distance between fuel channels is about 120mm. The inlet and outlet of the fuel channel are connected to the water supply pipe through a high-pressure self-tightening flange (GRAYLOC), which belongs to a mechanical sealing mechanism, such as Figure 1 As shown in the figure, it consists of an end part, a sealing ring, a hub (or flange) and a ferrule flange. The sealing surface of the end part and the sealing lip of the sealing ring form a pair of sealing pairs, and the sealing surface of the hub and the sealing lip of the sealing ring form a pair of sealing pairs. By tightening the bolts, the ferrule is driven to press the hub, and then the upper flange and the end part clamp the sealing ring, and the mechanical seal is achieved by the sealing lip of the sealing ring and the upper and lower sealing surfaces. As the pressure boundary of the fuel channel of the heavy water reactor unit, once Grayloc leaks, it will directly affect the safe and stable operation of the unit.

[0003] Mechanical seals such as GRAYLOC serve as the pressure boundary of the fuel channel of the heavy water reactor unit. They have been in service for a long time in harsh environments such as high temperature, high pressure, and boric acid water medium. They are prone to the following two types of damage: one is pitting corrosion and mechanical vibration wear of the sealing surface caused by corrosion; the other is scratches on the sealing surface caused by improper operation during assembly. These damages may cause contact failure of the seal pair during long-term operation, and then cause leakage of GRAYLOC. Therefore, once the sealing surface of the end component is found to be damaged during the maintenance process of GRAYLOC, the sealing surface needs to be repaired to ensure the sealing of the mechanical seal mechanism. According to the actual situation of the damage, the repair method is also different. Among them, for deeper scratches, wear and corrosion pits, it is necessary to grind and polish the sealing surface by grinding to remove the damaged part, and use brush plating to restore the size of the sealing surface to ensure the sealing effect of the sealing pair.

[0004] However, since the fuel channel cannot be disassembled, the brush plating repair work on the sealing surface of the end component must be completed in a small, restricted and irradiated environment on site. At the same time, due to the particularity of the space where Grayloc is located, its end component and the hub can generally only be pulled apart by 50mm, requiring the device to be miniaturized; in addition, since the axial direction of the end component and the vertical plane present a certain angle (32° and 58°), it is required that the influence of the tilt state on the uniformity of brush plating needs to be repeatedly considered during the brush plating process. In addition, in order to ensure the stability of the brush plating process and the uniformity in the circumferential direction, the brush plating device and the hub sealing surface should be as coaxial as possible. These characteristics determine that the brush plating equipment for repairing the sealing surface of the end component must be able to work in a small and complex space around the mechanical seal mechanism, and not interfere with the surrounding components and other parts of the component. At the same time, the device is used in a radioactive environment, requiring the device to be light, easy to load and unload, short in time and stable. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0006] In view of this, an embodiment of the present application proposes an electric brush plating device for repairing the sealing surface of an end component, comprising:

[0007] A shell assembly, wherein the shell assembly is formed with a plating solution delivery channel;

[0008] A clamping assembly, the clamping assembly is connected to the housing assembly and is used to be connected to a workpiece to be brush plated;

[0009] A brush plating assembly, the brush plating assembly is connected to the housing assembly, and the plating solution delivery channel is connected to the brush plating assembly;

[0010] A sealing component is arranged in the shell and is used to seal the plating solution output through the brush plating component.

[0011] In a feasible implementation manner, the housing assembly includes:

[0012] Extension rod;

[0013] A first shell, wherein the extension rod is a hollow structure, and the extension rod is connected to the first shell;

[0014] The second shell is connected to the first shell, and a receiving space is formed between the first shell and the second shell.

[0015] In a feasible implementation manner, the clamping assembly includes:

[0016] a first driving member;

[0017] a first transmission member, the first driving member being connected to the first transmission member;

[0018] A plurality of clamping members, wherein the first transmission member is connected to the clamping members, and the first transmission member is used to drive the clamping members to move along a radial direction so that the clamping members are clamped at screw holes of a workpiece to be brush plated.

[0019] In a feasible implementation manner, the first driving member includes a first motor;

[0020] The first transmission member includes: a first transmission gear group, a second transmission gear, a pulley, a slide groove and a positioning pin. The output end of the first motor is connected to the first transmission gear group, the second transmission gear is connected to the first transmission gear group, the pulley is connected to the housing assembly and is used to center the second transmission gear. The slide groove is formed on the second transmission gear, and the positioning pin is slidably connected to the slide groove and connected to the clamping member.

[0021] In a feasible implementation manner, the brush plating assembly includes:

[0022] a second driving member;

[0023] a second transmission member, the second driving member being connected to the second transmission member;

[0024] The second transmission member is connected to the brush plating head, and the brush plating head is connected to the plating solution delivery channel.

[0025] In a feasible implementation manner, the second driving member includes a second motor;

[0026] The second transmission member includes: a third transmission gear set and a fourth transmission gear, the second motor is connected to the third transmission gear set, the third transmission gear set is connected to the fourth transmission gear, the fourth transmission gear is overlapped with the brush plating head, and the third transmission gear set is arranged on one side of the fourth transmission gear.

[0027] In a feasible implementation manner, the sealing assembly includes:

[0028] a base, the base being connected to the housing assembly;

[0029] An inflatable sealing ring connected to the base;

[0030] An inflation tube is connected to the inflation sealing ring.

[0031] In a feasible embodiment, the brush plating device for repairing the sealing surface of the end component further includes:

[0032] A console is connected to at least one of the housing assembly, the clamping assembly, the brush plating assembly, and the sealing assembly.

[0033] In a feasible implementation manner, the console includes:

[0034] Stand;

[0035] A brush plating power supply, which is arranged on the stand and connected to the brush plating assembly for adjusting the brush plating current;

[0036] An electrical control component is arranged on the stand, and the electrical control component is connected to the clamping assembly, the brush plating assembly and the sealing assembly, and is used to control the start and stop of the clamping assembly, the brush plating assembly and the sealing assembly.

[0037] In a feasible implementation manner, the console further includes:

[0038] A plating solution storage tank, the plating solution storage tank is arranged on the stand and is connected to the housing assembly;

[0039] Casters are connected to the stand.

[0040] Compared with the prior art, the present invention has at least the following beneficial effects:

[0041] The electric brush plating device for repairing the sealing surface of the end component provided by the embodiment of the present application includes a shell component, a clamping component, a brush plating component and a sealing component. The shell component plays the role of encapsulating the clamping component, the brush plating component and the sealing component, protecting the clamping component, the brush plating component and the sealing component and conveying the plating solution. During use, the shell component is set at the sealing surface that needs to be repaired, and then the workpiece to be brush plated is clamped by the clamping component, the brush plating component is opened, and the sealing surface is modified by outputting the plating solution through the brush plating component. At the same time, the sealing component is opened to block the output plating solution to prevent the plating solution from backflowing and flowing into other components, such as preventing the plating solution from flowing into the pipeline. The brush plating process of the electric brush plating device for repairing the sealing surface of the end component provided by the embodiment of the present application is stable and reliable, and easy to operate, providing a convenient tool for repairing the sealing structure of nuclear facility pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0043] Figure 1A schematic structural diagram of a high-pressure self-tightening flange according to an embodiment;

[0044] Figure 2 A schematic structural diagram of an electric brush plating device for repairing the sealing surface of an end component according to an embodiment of the present application;

[0045] Figure 3 A schematic structural diagram of an electric brush plating device for repairing the sealing surface of an end component according to another embodiment provided in the present application;

[0046] Figure 4 A schematic structural diagram of a housing assembly of an electric brush plating device for repairing an end component sealing surface according to an embodiment of the present application;

[0047] Figure 5 A schematic structural diagram of a clamping assembly of an electric brush plating device for repairing an end component sealing surface according to an embodiment of the present application;

[0048] Figure 6 A schematic structural diagram of a brush plating assembly of an electric brush plating device for repairing a sealing surface of an end component according to an embodiment of the present application;

[0049] Figure 7 A schematic structural diagram of a sealing assembly of an electric brush plating device for repairing a sealing surface of an end component according to an embodiment of the present application;

[0050] Figure 8 A schematic structural diagram of a control console of an electric brush plating device for repairing the sealing surface of an end component according to an embodiment provided in the present application.

[0051] in, Figures 2 to 8 The corresponding relationship between the reference numerals and the component names is as follows:

[0052] 110 housing assembly, 120 clamping assembly, 130 brush plating assembly, 140 sealing assembly, 150 console;

[0053] 111 extension rod, 112 first shell, 113 second shell, 121 first driving member, 122 first transmission member, 123 clamping member, 131 second driving member, 132 second transmission member, 133 brush plating head, 141 base, 142 inflatable sealing ring, 143 inflatable tube, 151 stand, 152 brush plating power supply, 153 electrical control component, 154 plating solution storage box, 155 caster;

[0054] 1221 is a first transmission gear set, 1222 is a second transmission gear, 1223 is a pulley, 1224 is a slide slot, 1321 is a third transmission gear set, and 1322 is a fourth transmission gear. DETAILED DESCRIPTION

[0055] In order to better understand the above-mentioned technical scheme, the technical scheme of the embodiments of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical scheme of the embodiments of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

[0056] like Figures 2 to 8 As shown, an embodiment of the present application proposes an electric brush plating device for repairing the sealing surface of an end component, including: a shell component 110, the shell component 110 is formed with a plating solution delivery channel; a clamping component 120, the clamping component 120 is connected to the shell component 110, and is used to be connected to a workpiece to be brush plated; a brush plating component 130, the brush plating component 130 is connected to the shell component 110, and the plating solution delivery channel is connected to the brush plating component 130; a sealing component 140, the sealing component 140 is arranged in the shell, and is used to seal the plating solution output through the brush plating component 130.

[0057] The electric brush plating device for repairing the sealing surface of the end component provided by the embodiment of the present application includes a shell component 110, a clamping component 120, a brush plating component 130 and a sealing component 140. The shell component 110 plays the role of encapsulating the clamping component 120, the brush plating component 130 and the sealing component 140, protecting the clamping component 120, the brush plating component 130 and the sealing component 140 and conveying the plating solution. During use, the shell component 110 is set at the sealing surface that needs to be repaired, and then the workpiece to be brush plated is clamped by the clamping component 120, the brush plating component 130 is opened, and the plating solution is output by the brush plating component 130 to modify the sealing surface, and the sealing component 140 is opened at the same time to block the output plating solution to prevent the plating solution from backflowing and flowing into other components, such as preventing the plating solution from flowing into the pipeline. The brush plating process of the electric brush plating device for repairing the sealing surface of the end component provided by the embodiment of the present application is stable and reliable, easy to operate, and provides a convenient tool for repairing the sealing structure of nuclear facility pipelines.

[0058] It can be understood that the brush plating device for repairing the sealing surface of end components provided in the embodiment of the present application is particularly suitable for the special brush plating of the sealing surface of the high-pressure self-tightening flange (GRAYLOC) in the mechanical sealing mechanism of the heavy water reactor nuclear power plant, and can also be used in similar scenarios of brush plating repair of the sealing surface of the pipeline end components.

[0059] It can be understood that the brush plating device for repairing the sealing surface of the end component provided in the embodiment of the present application can restore the sealing surface size by on-site brush plating, restore the size required by the sealing pair, thereby ensuring the sealing of the mechanical sealing mechanism, and providing an important brush plating function for the maintenance of the mechanical sealing mechanism of the heavy water reactor.

[0060] It can be understood that the electric brush plating device for repairing the sealing surface of the end part provided in the embodiment of the present application can be used for the deep scratches, wear and corrosion pits of the sealing surface of the end part of the heavy water reactor sealing structure, and the sealing surface size needs to be repaired for maintenance. The brush plating process is stable and reliable, and the operation is simple, providing a convenient tool for repairing the sealing structure of nuclear facility pipelines. The device structure is relatively simple, avoiding redundant structures, and the overall structure is compact, easy to install and transport, with complete functions, and a special clamping assembly designed according to the end part of the heavy water reactor mechanical seal mechanism, with a high degree of automation, good brush plating effect, and good coating quality.

[0061] like Figure 4 As shown, in a feasible embodiment, the shell assembly 110 includes: an extension rod 111; a first shell 112, the extension rod 111 is a hollow structure, and the extension rod 111 is connected to the first shell 112; a second shell 113, the second shell 113 is connected to the first shell 112, and an accommodating space is formed between the first shell 112 and the second shell 113.

[0062] In this technical solution, the structural composition of the shell assembly 110 is further provided. The shell assembly 110 may include an extension rod 111, a first shell 112, and a second shell 113. The interior of the extension rod 111 is a hollow structure. The brush plating liquid pipeline penetrates from the interior of the extension rod 111 into the interior of the shell assembly 110, and can also play an extension role. For positions in a narrow space that cannot be reached by human hands, the extension rod 111 can be used to assist in reaching the brush plating position to complete the brush plating operation. The extension rod 111 is connected to the first shell 112 by bolts, and the first shell 112 and the second shell 113 are connected by bolts. The shell assembly 110 fixes and protects the internal transmission structure and circuit of the body. The first shell 112 and the second shell 113 are made of metal throughout, and the structure is stable and durable, simple and portable.

[0063] like Figure 5 As shown, in a feasible embodiment, the clamping assembly 120 includes: a first driving member 121; a first transmission member 122, the first driving member 121 is connected to the first transmission member 122; a plurality of clamping members 123, the first transmission member 122 is connected to the clamping member 123, and the first transmission member 122 is used to drive the clamping member 123 to move along the radial direction so that the clamping member 123 is clamped in the screw hole of the workpiece to be brush plated.

[0064] In this technical solution, the structural composition of the clamping assembly 120 is further provided. The clamping assembly 120 may include a first driving member 121, a first transmission member 122 and a plurality of clamping members 123. By opening the first driving member 121, the plurality of clamping members 123 can be driven to move in a radial direction through the first transmission member 122, that is, the clamping members 123 can be driven to move in a direction from inside to outside or from outside to inside. Based on this, the clamping members 123 can be clamped in the screw holes of the workpiece to be brush plated, completing the connection between the brush plating device for repairing the sealing surface of the end member and the workpiece to be brush plated, thereby facilitating the stable brush plating.

[0065] like Figure 5 As shown, in a feasible embodiment, the first driving member 121 includes a first motor; the first transmission member 122 includes: a first transmission gear group 1221, a second transmission gear 1222, a pulley 1223, a slide groove 1224 and a positioning pin, the output end of the first motor is connected to the first transmission gear group 1221, the second transmission gear 1222 is connected to the first transmission gear group 1221, the pulley 1223 is connected to the housing assembly 110 and is used to center the second transmission gear 1222, the slide groove 1224 is formed on the second transmission gear 1222, and the positioning pin is slidably connected to the slide groove 1224 and connected to the clamping member 123.

[0066] In the technical solution, a first transmission member 122 is further provided, which includes a first transmission gear set 1221 composed of a small gear and a second transmission gear 1222 composed of a large gear. The first motor is fixed to the second housing 113 by bolts. The first transmission gear set 1221 connects the first motor and the second transmission gear 1222, and reduces the rotation speed of the first motor by step-by-step transmission, thereby increasing the torque obtained by the second transmission gear 1222. The second transmission gear 1222 is centered by six pulleys 1223 fixed to the second housing 113, and a plurality of threaded holes are provided on the sealing surface to be brush plated and repaired. A pin is provided at the bottom of the slider of the clamping member 123, and is slidably connected with a slide groove 1224 from inside to outside on the second transmission gear 1222. The second transmission gear 1222 drives the clamping member 123 to slide inward or outward by rotation to form a clamping force to fix the brush plating device body on the workpiece to be brush plated. With such a configuration, the fixation of the electric brush plating device for repairing the sealing surface of the end member and the workpiece to be brush plated can be made more reliable.

[0067] like Figure 6 As shown, in a feasible embodiment, the brush plating assembly 130 includes: a second driving member 131; a second transmission member 132, the second driving member 131 is connected to the second transmission member 132; a brush plating head 133, the second transmission member 132 is connected to the brush plating head 133, and the brush plating head 133 is connected to the plating solution delivery channel.

[0068] In this technical solution, the structural composition of the brush plating assembly 130 is further provided, and the brush plating assembly 130 is composed of a second driving member 131, a second transmission member 132 and a brush plating head 133. The second driving member 131 is fixed to the second housing 113 by bolts, and the second transmission member 132 is connected to the second driving member 131. The rotation speed of the second driving member 131 is reduced by step-by-step transmission, and the brush plating liquid flows out through the small tube opening in the middle of the brush plating head 133, and brush plating can be performed, thereby ensuring the reliability of brush plating.

[0069] like Figure 6 As shown, in a feasible embodiment, the second driving member 131 includes a second motor; the second transmission member 132 includes: a third transmission gear group 1321 and a fourth transmission gear 1322, the second motor is connected to the third transmission gear group 1321, the third transmission gear group 1321 is connected to the fourth transmission gear 1322, the fourth transmission gear 1322 is overlapped with the brush plating head 133, and the third transmission gear group 1321 is arranged on one side of the fourth transmission gear 1322.

[0070] In this technical solution, the structural composition of the brush plating assembly 130 is further provided, and the brush plating assembly 130 includes a second motor, a third transmission gear set 1321 composed of pinions, a fourth transmission gear 1322, and a brush plating head 133. The second motor is fixed to the second housing 113 by bolts, and the third transmission gear set 1321 connects the second motor and the fourth transmission gear 1322, and the rotation speed of the second motor is reduced by step-by-step transmission. The fourth transmission gear 1322 and the brush plating head 133 are connected by bolts, and the second motor drives the fourth transmission gear 1322 and the brush plating head 133 to rotate for brush plating through the third transmission gear set 1321. The brush plating liquid flows out through the small tube in the middle of the brush plating head 133, which ensures the reliability of the brush plating.

[0071] like Figure 7 As shown, in a feasible embodiment, the sealing assembly 140 includes: a base 141 , which is connected to the shell assembly 110 ; an inflatable sealing ring 142 , which is connected to the base 141 ; and an inflatable tube 143 , which is connected to the inflatable sealing ring 142 .

[0072] In this technical solution, the structural composition of the sealing component 140 is further provided. The sealing component 140 may include a base 141, an inflatable sealing ring 142 and an inflating tube 143. The inflating tube 143 is fixed in the middle of the base 141 by threads. There is a pipeline inside the base 141 connected to the inflation port of the inflatable sealing ring 142. The inflatable sealing ring 142 is embedded in a groove on the outside of the base 141. After the inflatable sealing ring 142 is inflated, the inflatable sealing ring 142 will expand to prevent the electroplating liquid from flowing into the pipeline workpiece to be repaired by brush plating, thereby ensuring the reliability of brush plating.

[0073] like Figure 8 As shown, in a feasible embodiment, the brush plating device for repairing the sealing surface of the end component also includes: a console 150, which is connected to at least one of the housing assembly 110, the clamping assembly 120, the brush plating assembly 130 and the sealing assembly 140.

[0074] In this technical solution, the brush plating device for repairing the sealing surface of the end component may also include a control console 150, which is connected to at least one of the shell assembly 110, the clamping assembly 120, the brush plating assembly 130 and the sealing assembly 140 to facilitate the control of the supply of plating solution, the opening and closing of the clamping assembly 120, and the opening and closing of the sealing assembly 140, thereby making the control of the brush plating device for repairing the sealing surface of the end component more convenient.

[0075] like Figure 8 As shown, in a feasible embodiment, the console 150 includes: a stand 151; a brush plating power supply 152, which is arranged on the stand 151 and connected to the brush plating assembly 130 for adjusting the brush plating current; an electrical control component 153, which is arranged on the stand 151 and connected to the clamping assembly 120, the brush plating assembly 130 and the sealing assembly 140 for controlling the start and stop of the clamping assembly 120, the brush plating assembly 130 and the sealing assembly 140.

[0076] In this technical solution, the structural composition of a console 150 is further provided. The console 150 may include a brush plating power supply 152, a stand 151 and an electrical control console 150. The brush plating power supply 152 is used to provide current during brush plating and adjust the current size during brush plating. The electrical control console 150 is used to control the input type of the brush plating liquid. The brush plating power supply 152 and the electrical control console 150 are both centrally installed on a stand 151 for easy transportation.

[0077] like Figure 8 As shown, in a feasible implementation manner, the console 150 further includes: a plating liquid storage tank 154 , which is disposed on a stand and connected to the housing assembly 110 ; and casters 155 , which are connected to the stand 151 .

[0078] In this technical solution, the control console 150 may further include a plating solution storage tank 154, which is used to store the brush plating solution required for each process, so as to facilitate the continuous brush plating.

[0079] In some examples, the working principle of the brush plating device for repairing the sealing surface of the end component provided by the embodiments of the present application is:

[0080] 1) Each mechanism is tightly connected to ensure the rigidity and strength requirements, and the device structure is simple, light and compact to meet the requirements of on-site repair.

[0081] 2) The shell assembly 110 has a compact overall structure, small dimensions, and a total height of about 47.5 mm. It is equipped with a metal extension rod 111, which can adapt to the repair of narrow space locations and has a wide range of applications.

[0082] 3) The clamping assembly 120 is driven by the first motor to drive the gear transmission, and the gear transmission drives the slider to achieve rotary clamping, and the structure is simple and effective.

[0083] 4) The brush plating assembly 130 drives the gear transmission through the second motor, and the gear transmission drives the brush plating head 133 to complete the liquid supply, thereby realizing brush plating repair, which has a simple structure and is easy to control.

[0084] 5) After the sealing assembly 140 is inflated into the inflatable sealing ring 142, the inflatable sealing ring 142 will expand and seal the inside of the brush plating repair space to prevent the electroplating liquid from flowing into the pipe workpiece to be brush plated and repaired. The structure is simple and the sealing effect is good.

[0085] 6) The brush plating power supply 152 of the control console 150, the electrical control console 150 and the plating solution storage are all centrally installed on a wheeled stand 151, which has a compact structure and is convenient and quick to transport.

[0086] In some examples, the implementation process of the brush plating device for repairing the sealing surface of the end component provided by the embodiments of the present application may include the following steps:

[0087] 1) Before use, first check whether all mechanisms are firmly connected, whether the circuit is normal, and confirm that the wiring between the device mechanical body and the console 150 is correct.

[0088] 2) Turn on the power supply, check whether the brush plating power supply 152 and the control console 150 panel are normal, and check whether all instruments are working properly.

[0089] 3) Place the housing assembly 110 at the corresponding position of the workpiece to be brush plated, start the clamping assembly 120, and fasten the housing assembly 110 at the corresponding position of the workpiece to be brush plated.

[0090] 4) Set various parameters such as brush plating rotation, plating solution flow rate and plating solution ratio on the control console 150, and adjust the brush plating power supply 152 to a suitable brush plating voltage.

[0091] 5) Press the start button to start cleaning, activation, priming and brush plating until all processes are completed. If there is a problem in the middle, you can switch to manual control or press the emergency stop button in time to resume automatic processing after the problem is solved.

[0092] 6) After the processing is completed, disconnect the power supply, clean the site, loosen the clamping assembly 120, and install the shell assembly 110 on the next pipe to be plated and wait for processing.

[0093] The electric brush plating device for repairing the sealing surface of the end component provided in the embodiment of the present application is particularly suitable for repairing the sealing surface of the end component of the mechanical seal structure of the heavy water reactor. It is designed to solve the problem that the sealing surface of the mechanical seal mechanism has deep scratches, damage and corrosion pits during long-term service, resulting in a decrease in sealing performance and the size of the sealing surface of the end component needs to be repaired. The device adopts an electrical control method, the brush plating repair process is stable and reliable, the operation is simple, the structure is simple, the loading and unloading and operation are simple, the application range is wide, the coating structure is fine, the coating layer has compressive stress or small tensile stress, and the coating thickness is uniform. The device consists of a brush plating mechanical body and a control console 150, and the mechanical body includes a shell assembly 110, a clamping assembly 120, a brush plating assembly 130 and a sealing assembly 140. Under the control of the control console 150, the fastening of the brush plating mechanical body and the processing of the brush plating cleaning, activation, priming and brush plating processes are completed to achieve the brush plating repair of the sealing structure.

[0094] The brush plating device for repairing the sealing surface of an end component provided in the embodiment of the present application has at least the following beneficial effects

[0095] (1) The brush plating device used for repairing the sealing surface of end parts has a reasonable structural design, high strength and rigidity, is easy to disassemble and transfer, and has functions such as brush plating repair and automatic control of nuclear facility pipeline sealing structures.

[0096] (2) The electric brush plating device for repairing the sealing surface of the end component is composed of a brush plating machine body and a control console 150. The machine body includes a housing assembly 110, a clamping assembly 120, a brush plating assembly 130 and a sealing assembly 140. Under the control of the control console 150, the brush plating machine body is fastened and the brush plating cleaning, activation, priming and brush plating processes are completed to achieve brush plating repair of the sealing structure.

[0097] (3) The sealing assembly 140 of the brush plating device for repairing the sealing surface of the end component is composed of an air filling tube 143, a base 141 and an air filling sealing ring 142. The air pump is controlled by an external program to inflate the air filling sealing ring 142 to seal the brush plating liquid, thereby effectively controlling the flow range of the brush plating liquid and preventing the brush plating liquid from leaking and contaminating the pipeline.

[0098] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0099] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0100] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0101] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric brush plating device for repairing the sealing surface of an end component, characterized in that: include: A shell assembly, wherein the shell assembly is formed with a plating solution delivery channel; A clamping assembly, the clamping assembly is connected to the housing assembly and is used to be connected to a workpiece to be brush plated; A brush plating assembly, the brush plating assembly is connected to the housing assembly, and the plating solution delivery channel is connected to the brush plating assembly; A sealing component is arranged in the shell and is used to seal the plating solution output through the brush plating component.

2. The brush plating device for repairing the sealing surface of an end component according to claim 1, characterized in that: The housing assembly comprises: Extension rod; A first shell, wherein the extension rod is a hollow structure, and the extension rod is connected to the first shell; The second shell is connected to the first shell, and a receiving space is formed between the first shell and the second shell.

3. The brush plating device for repairing the sealing surface of an end component according to claim 1, characterized in that: The clamping assembly comprises: a first driving member; a first transmission member, the first driving member being connected to the first transmission member; A plurality of clamping members, wherein the first transmission member is connected to the clamping members, and the first transmission member is used to drive the clamping members to move along a radial direction so that the clamping members are clamped at screw holes of a workpiece to be brush plated.

4. The brush plating device for repairing the sealing surface of an end component according to claim 3, characterized in that: The first driving member includes a first motor; The first transmission member includes: a first transmission gear group, a second transmission gear, a pulley, a slide groove and a positioning pin. The output end of the first motor is connected to the first transmission gear group, the second transmission gear is connected to the first transmission gear group, the pulley is connected to the housing assembly and is used to center the second transmission gear. The slide groove is formed on the second transmission gear, and the positioning pin is slidably connected to the slide groove and connected to the clamping member.

5. The brush plating device for repairing the sealing surface of an end component according to claim 1, characterized in that: The brush plating assembly comprises: a second driving member; a second transmission member, the second driving member being connected to the second transmission member; The second transmission member is connected to the brush plating head, and the brush plating head is connected to the plating solution delivery channel.

6. The brush plating device for repairing the sealing surface of an end component according to claim 5, characterized in that: The second driving member includes a second motor; The second transmission member includes: a third transmission gear set and a fourth transmission gear, the second motor is connected to the third transmission gear set, the third transmission gear set is connected to the fourth transmission gear, the fourth transmission gear is overlapped with the brush plating head, and the third transmission gear set is arranged on one side of the fourth transmission gear.

7. The brush plating device for repairing the sealing surface of an end component according to any one of claims 1 to 6, characterized in that: The sealing assembly comprises: a base, the base being connected to the housing assembly; An inflatable sealing ring connected to the base; An inflation tube is connected to the inflation sealing ring.

8. The brush plating device for repairing the sealing surface of an end component according to any one of claims 1 to 6, characterized in that: Also includes: A console is connected to at least one of the housing assembly, the clamping assembly, the brush plating assembly, and the sealing assembly.

9. The brush plating device for repairing the sealing surface of an end member according to claim 8, characterized in that: The console comprises: Stand; A brush plating power supply, which is arranged on the stand and connected to the brush plating assembly for adjusting the brush plating current; An electrical control component is arranged on the stand, and the electrical control component is connected to the clamping assembly, the brush plating assembly and the sealing assembly, and is used to control the start and stop of the clamping assembly, the brush plating assembly and the sealing assembly.

10. The brush plating device for repairing the sealing surface of an end component according to claim 9, characterized in that: The console also includes: A plating solution storage tank, the plating solution storage tank is arranged on the stand and is connected to the housing assembly; Casters are connected to the stand.

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