Maintenance moving device
Patent Information
- Application Number
- CN202510242036.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-06-20
Smart Images
Figure CN120172007A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of nuclear power plant maintenance, and particularly relates to a maintenance mobile device. Background Art
[0002] During the maintenance process of a nuclear power plant, it is necessary to maintain the switch driving mechanism of the isolation valve on the main steam pipeline. The switch driving mechanism is used to drive the isolation valve to open and close, thereby controlling the opening and closing of the main steam pipeline. However, in the actual maintenance process, first transport the switch driving mechanism to the workshop, then use a crane to lift the switch driving mechanism onto the maintenance bracket, and then start the maintenance work of the switch driving mechanism after locking it with the pressing plate of the maintenance bracket. In this process, the operation of moving the switch driving mechanism to the maintenance bracket using a crane is cumbersome and time-consuming.
[0003] The above statements are only used to provide background technical information related to this application, and do not necessarily constitute prior art. Summary of the Invention
[0004] The purpose of the embodiments of this application is to provide a maintenance mobile device, including but not limited to solving the problems of cumbersome and time-consuming maintenance operations of the valve switch driving mechanism in related technologies.
[0005] The technical solution adopted in the embodiments of this application is: A maintenance mobile device is used in cooperation with the switch driving mechanism of a valve. The maintenance mobile device includes a frame, a mounting seat, a traveling driving mechanism, and a plurality of traveling wheels; the mounting seat is arranged on the frame and is used for mounting the switch driving mechanism; the traveling driving mechanism is arranged on the frame; a plurality of traveling wheels are arranged at the bottom of the frame; the traveling driving mechanism is connected to at least one of the plurality of traveling wheels to drive the traveling wheels to rotate.
[0006] Optionally, the plurality of traveling wheels are used in cooperation with a ground track.
[0007] Optionally, the mounting seat is rotatably connected to the frame.
[0008] Optionally, the frame is provided with a rotating hole, and a plain bearing is arranged in the rotating hole. The mounting seat is rotatably mounted in the rotating hole through the plain bearing.
[0009] Optionally, the mounting seat has a mounting hole and an opening communicating with the mounting hole. The opening is used for inserting the switch driving mechanism into the mounting hole; the maintenance mobile device includes a fixing component for fixing the switch driving mechanism in the mounting hole; a flange located in the mounting hole is provided on the outer peripheral wall of the switch driving mechanism; the fixing component further includes a first fixing member and a second fixing member. The first fixing member abuts against the side of the flange facing the opening; a groove is provided on the inner peripheral wall of the mounting hole. The second fixing member includes an insertion portion and an abutting portion connected to each other. The insertion portion is inserted into the groove, and the abutting portion abuts against the side of the first fixing member facing the opening.
[0010] Optionally, the fixing component further includes a third fixing member, which includes a first fixing portion and a second fixing portion. The first fixing portion is located between the outer peripheral wall of the switch driving mechanism and the abutting portion. One end of the first fixing portion is connected to the second fixing portion, and the other end of the first fixing portion abuts against the side surface of the first fixing member facing the opening. The second fixing portion abuts against the side surface of the abutting portion facing the opening.
[0011] Optionally, the number of the first fixing members is multiple, and the multiple first fixing members are circumferentially distributed along the circumference of the mounting hole; and / or, the number of the second fixing members is multiple, and the multiple second fixing members are circumferentially distributed along the circumference of the mounting hole.
[0012] Optionally, the maintenance mobile device further includes a laser ranging module for detecting the telescopic distance of the telescopic rod of the switch driving mechanism. The mounting seat is provided with a receiving hole for receiving the telescopic rod, and the laser ranging module is arranged at the end of the receiving hole facing away from the switch driving mechanism and is arranged opposite to the end face of the telescopic rod.
[0013] Optionally, the maintenance mobile device further includes a power supply device arranged on the frame. The power supply device includes a first power supply and a second power supply. The first power supply is used to supply power to the test solenoid valve of the switch driving mechanism, and the second power supply is used to supply power to the main drain solenoid valve of the switch driving mechanism.
[0014] Optionally, the maintenance mobile device further includes a control device, and the first power supply, the second power supply and the switch driving mechanism are electrically connected to the control device.
[0015] Among the above one or more technical solutions of the maintenance mobile device provided by the embodiments of the present application, at least one of the following technical effects is achieved: When the maintenance mobile device is used, first install the switch driving mechanism on the mounting seat, then start the traveling driving mechanism, and the traveling driving mechanism drives the traveling wheels to rotate, so as to realize the traveling of the maintenance mobile device. After the maintenance mobile device travels to the preset position, finally, the switch driving mechanism is maintained. The maintenance mobile device of the embodiments of the present application realizes the movement of the maintenance mobile device by driving the traveling wheels to rotate by the traveling driving mechanism. Compared with using a crane to hoist the switch driving mechanism, the operation is simple and time-saving and labor-saving.
[0016] The above description is only an overview of the technical solutions of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically describes the embodiments of the present application. Description of the Drawings
[0017] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0018] Figure 1 It is a schematic structural diagram of a maintenance mobile device provided by some embodiments of the present application.
[0019] Figure 2 For Figure 1 The partial enlarged view at position A in
[0020] Figure 3 For Figure 1 The partial enlarged view at position B in
[0021] Figure 4 It is a schematic principle diagram of a maintenance mobile device provided by some embodiments of the present application for testing the telescopic distance of the telescopic rod.
[0022] Among them, the reference numerals in the figure are as follows:
[0023] 100, maintenance mobile device; 10, frame; 11, rotation hole; 111, first step surface; 112, second step surface; 12, plain bearing; 121, inner ring; 122, outer ring; 123, rolling element; 13, limiting member; 14, limiting sleeve; 15, limiting hoop; 16, handle; 20, mounting seat; 21, mounting hole; 211, opening; 212, groove; 213, fifth step surface; 214, accommodating hole; 22, third step surface; 23, fourth step surface; 30, traveling drive mechanism; 31, electric drive member; 32, transmission mechanism; 40, traveling wheel; 41, ground track; 50, fixing assembly; 51, first fixing member; 52, second fixing member; 521, insertion portion; 522, abutting portion; 53, third fixing member; 531, first fixing portion; 532, second fixing portion; 60, laser distance measuring module; 70, power supply device; 81, solenoid valve module; 82, wire; 83, bracket; 200, switch drive mechanism; 201, drive unit; 2011, flange; 202, telescopic rod. Specific embodiments
[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.
[0025] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features.
[0026] In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0027] In the present application, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0028] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "inside", "outside", "side", "top", "bottom", "front", "rear", etc. is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.
[0030] In the description of the present application, it should be noted that the term "and / or" is merely a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone.
[0031] It should also be noted that in the embodiments of the present application, the same reference numeral is used to represent the same component or the same part. For the same parts in the embodiments of the present application, only one of the parts or components may be marked with a reference numeral in the figure. It should be understood that the reference numerals are equally applicable to other identical parts or components.
[0032] The maintenance mobile device in the embodiments of the present application can be used to fix and move the switch driving mechanism, and this maintenance mobile device can be used as a maintenance platform for the switch driving mechanism; the switch driving mechanism can refer to the driving mechanism for driving the opening and closing of the isolation valve on the main steam pipeline. Of course, it can also be a driving mechanism for driving the opening and closing of other types of valves.
[0033] The following will be combined with Figures 1 to 4 to illustrate the maintenance mobile device 100 of the embodiments of the present application.
[0034] Refer to Figure 1 As shown, in some embodiments, the maintenance mobile device 100 is used to cooperate with the switch driving mechanism 200 of the valve. The maintenance mobile device 100 includes a frame 10, a mounting seat 20, a traveling driving mechanism 30, and a plurality of traveling wheels 40: The mounting seat 20 is arranged on the frame 10, and the mounting seat 20 is used for the switch driving mechanism 200 to be installed; the traveling driving mechanism 30 is arranged on the frame 10; a plurality of traveling wheels 40 are arranged at the bottom of the frame 10; the traveling driving mechanism 30 is connected to at least one of the plurality of traveling wheels 40 to drive the traveling wheels 40 to rotate.
[0035] The frame 10 can refer to the installation base of the maintenance mobile device 100. The frame 10 can be used for the mounting seat 20, the traveling driving mechanism 30, and a plurality of traveling wheels 40 to be installed, so as to connect the components of the maintenance mobile device 100 into a whole, thereby facilitating the movement of the maintenance mobile device 100; the frame 10 can be spliced by components such as plate parts and rod parts. The frame 10 serves to support the mounting seat 20, the traveling driving mechanism 30, and a plurality of traveling wheels 40.
[0036] The mounting seat 20 can refer to the component for the switch driving mechanism 200 to be installed. The mounting seat 20 serves to support the switch driving mechanism 200, and the material of the mounting seat 20 can be metal or the like.
[0037] The traveling driving mechanism 30 can refer to the component for driving the traveling wheels 40 to rotate. The traveling driving mechanism 30 serves as the power device of the traveling wheels 40.
[0038] The traveling wheels 40 can refer to the wheels provided at the bottom of the frame 10. The number of the traveling wheels 40 is multiple, and the multiple traveling wheels 40 can form a multi-point support, enabling the frame 10 to be completely in a suspended state, making the subsequent maintenance and movement of the mobile device 100 more time-saving and labor-saving. In addition, with the design of multiple traveling wheels 40, when the multiple traveling wheels 40 rotate, the movement of the maintenance mobile device 100 can be made more relaxed and labor-saving.
[0039] In some examples, the traveling drive mechanism 30 can drive one of the multiple traveling wheels 40 to rotate. The rotation of this traveling wheel 40 can push the other traveling wheels 40 to rotate together, thereby realizing the movement of the maintenance mobile device 100.
[0040] In some examples, the traveling drive mechanism 30 can drive two or more of the multiple traveling wheels 40 to rotate. The rotating traveling wheels 40 can push the other traveling wheels 40 that are not connected to the traveling drive mechanism 30 to rotate accordingly, thereby realizing the movement of the maintenance mobile device 100.
[0041] Exemplarily, the number of the traveling wheels 40 is four. Two traveling wheels 40 are located at the front side of the maintenance mobile device 100, also called the front wheels, and two traveling wheels 40 are located at the rear side of the maintenance mobile device 100, also called the rear wheels. The two rear wheels are connected to the traveling drive mechanism 30, and the traveling drive mechanism 30 drives the two rear wheels to rotate, thereby driving the four traveling wheels 40 to rotate simultaneously, thus realizing the movement of the maintenance mobile device 100.
[0042] Certainly, in this example, all four traveling wheels 40 can be connected to the traveling drive mechanism 30 to achieve four-wheel drive, making the movement of the maintenance mobile device 100 more flexible.
[0043] The traveling wheels 40 can be rail wheels or pneumatic wheels, etc.
[0044] When the maintenance mobile device 100 of the embodiment of the present application is in use, first install the switch drive mechanism 200 on the mounting seat 20, then start the traveling drive mechanism 30. The traveling drive mechanism 30 drives the traveling wheels 40 to rotate, thereby realizing the movement of the maintenance mobile device 100. After the maintenance mobile device 100 travels to the preset position, finally, the switch drive mechanism 200 is maintained. For the maintenance mobile device 100 of the embodiment of the present application, the traveling drive mechanism 30 drives the traveling wheels 40 to rotate, thereby realizing the movement of the maintenance mobile device 100. Compared with using a crane to lift and transport the switch drive mechanism 200, the operation is simple and time-saving and labor-saving.
[0045] In some embodiments, the switch driving mechanism 200 includes a driving unit 201 and a telescopic rod 202. The driving unit 201 drives the telescopic rod 202 to extend or retract to operate the opening and closing of the isolation valve. The driving unit 201 includes a pneumatic oil pump circuit, a nitrogen circuit, a hydraulic cylinder, and an oil return circuit. The piston of the hydraulic cylinder is connected to the telescopic rod 202. High-pressure air drives the pneumatic oil pump to work through the air circuit. The pneumatic oil pump transports the fire-resistant oil from the fuel tank to the hydraulic cylinder. The nitrogen circuit cooperates with the hydraulic cylinder to compress nitrogen during oil filling. The hydraulic cylinder lifts the telescopic rod 202 to open the isolation valve. When returning oil, the nitrogen releases pressure to drive the telescopic rod 202 to descend and close the isolation valve.
[0046] In some examples, it is required that the isolation valve be closed within 5 seconds. Nitrogen can be filled into the hydraulic cylinder, thereby driving the telescopic rod 202 to move downward to perform the valve closing operation. At the same time, the fire-resistant oil flows back to the fuel tank from the hydraulic cylinder along the oil return circuit. The oil return circuit includes an isolation valve, a main relief valve, a regulating valve, and a test relief valve that are connected in sequence. The fire-resistant oil flows through the isolation valve, the main relief valve, the regulating valve, and the test relief valve in sequence and finally flows back to the fuel tank. Among them, the main relief valve serves as a cut-off valve. The main relief valve is used to cut off the oil return circuit. The main relief valve can be controlled by a main relief solenoid valve. The test relief valve can be a throttle valve. The test relief valve is used to throttle the oil return circuit to slow down the oil return rate, so that the telescopic rod 202 moves slowly downward, slowing down the closing of the isolation valve, which is used for the slow closing of the isolation valve.
[0047] The switch driving mechanism 200 further includes a solenoid valve module 81. The solenoid valve module 81 includes a main relief solenoid valve and a test solenoid valve. The main relief solenoid valve controls the opening and closing of the main relief valve. When the main relief solenoid valve is energized, the main relief valve is opened, and the telescopic rod 202 descends, thereby closing the isolation valve. When the main relief solenoid valve is de-energized, the main relief valve is closed. The test solenoid valve controls the opening and closing of the test relief valve. Exemplarily, the main relief solenoid valve and the test solenoid valve can be two-position three-way solenoid valves.
[0048] In some embodiments, a handle 16 is further provided on the side of the frame 10. The handle 16 is used for personnel to hold to improve the stability of the walking of the maintenance mobile device 100.
[0049] In some embodiments, a plurality of walking wheels 40 are used in cooperation with the ground track 41.
[0050] The walking wheels 40 are track wheels. The walking wheels 40 are matched with the ground track 41 and move along the ground track 41. The ground track 41 is used to guide the movement of the walking wheels 40, making the walking of the maintenance mobile device 100 more stable and more labor-saving.
[0051] In some embodiments, the walking driving mechanism 30 includes a transmission mechanism 32 provided on the frame 10 and an electric driving member 31. The electric driving member 31 is connected to the corresponding walking wheel 40 through the transmission mechanism 32.
[0052] The electric drive member 31 is used to output rotational power. The rotational power is transmitted to the traveling wheels 40 through the transmission mechanism 32, thereby driving the rotation of the traveling wheels 40 and realizing the traveling of the maintenance mobile device 100. The traveling drive mechanism 30 adopts the structure of the transmission mechanism 32 and the electric drive member 31, and its structure is simple and convenient for processing and manufacturing. In addition, the traveling of the maintenance mobile device 100 adopts an electric drive method, and it is more time-saving and labor-saving to drive the movement of the switch drive mechanism 200 by the maintenance mobile device 100.
[0053] The electric drive member 31 can be components such as a motor.
[0054] The transmission mechanism 32 can be a belt transmission mechanism, a gear transmission mechanism, a worm and worm gear transmission mechanism, etc.
[0055] In some embodiments, the mounting seat 20 is rotatably connected to the frame 10.
[0056] In some examples, the frame 10 is provided with a rotating hole 11. The mounting seat 20 is installed in the rotating hole 11, and the mounting seat 20 is in clearance fit with the rotating hole 11, so that the mounting seat 20 can rotate in the rotating hole 11 to realize the rotation of the mounting seat 20.
[0057] In some examples, the frame 10 is provided with a protrusion. The mounting seat 20 is sleeved outside the protrusion, and the mounting seat 20 rotates around the protrusion, thereby realizing the rotation of the mounting seat 20. Of course, in other examples, other rotating connection structures can also be adopted between the frame 10 and the mounting seat 20.
[0058] By adopting the technical solution of this embodiment, the mounting seat 20 can rotate relative to the frame 10, so that the switch drive mechanism 200 installed on the mounting seat 20 can also rotate relative to the frame 10, thereby realizing multi-angle maintenance of a fixed work station and making the maintenance operation of the switch drive mechanism 200 more convenient.
[0059] In some embodiments, the frame 10 is provided with a rotating hole 11, and a plain bearing 12 is arranged in the rotating hole 11. The mounting seat 20 is rotatably installed in the rotating hole 11 through the plain bearing 12.
[0060] The rotating hole 11 may refer to the hole structure provided on the frame 10. For example, the rotating hole 11 is a through hole penetrating the frame 10 from top to bottom. Of course, in other examples, the rotating hole 11 can also be a blind hole.
[0061] The plain bearing 12 can be a bearing that realizes relative rotation or swing between two parallel planes. The plain bearing 12 can be a plain bearing 12 with needle rollers and a plain bearing 12 with balls.
[0062] The plain bearing 12 is installed in the rotating hole 11, and the mounting seat 20 is inserted into the inner hole of the plain bearing 12, thereby realizing the rotational connection between the frame 10 and the mounting seat 20.
[0063] In some examples, the plain bearing 12 includes an inner ring 121, an outer ring 122 and rolling elements 123. The inner ring 121 and the outer ring 122 are arranged at intervals along the axial direction of the rotating hole 11. The rolling elements 123 are located between the inner ring 121 and the outer ring 122. The mounting seat 20 is inserted into the inner hole of the inner ring 121 and the inner ring 121 is fixedly connected to the mounting seat 20. By using the rolling of the rolling elements 123 on the raceways of the inner ring 121 and the outer ring 122, the relative rotation between the inner ring 121 and the outer ring 122 is realized. The rolling elements 123 can be needle rollers, cylindrical rollers or balls, etc.
[0064] Exemplarily, the number of the inner rings 121 is one, and the number of the outer rings 122 is two. The two outer rings 122 are arranged one above the other. The inner ring 121 is located between the two outer rings 122. Rolling elements 123 are provided between the inner ring 121 and the upper outer ring 122, and rolling elements 123 are provided between the inner ring 121 and the lower outer ring 122; the mounting seat 20 passes through the inner holes of the two outer rings 122 and the inner hole of the inner ring 121. The rotating hole 11 is a stepped hole, and the rotating hole 11 has a first step surface 111 and a second step surface 112. The lower outer ring 122 abuts against the first step surface 111. A limiting member 13 is provided in the rotating hole 11. One side of the limiting member 13 is installed on the second step surface 112 through fasteners such as bolts and screws, and the other side of the limiting member 13 abuts against the upper wall surface of the upper outer ring 122. In this way, through the limiting action of the first step surface 111 and the limiting member 13, the fixation of the plain bearing 12 in the rotating hole 11 is realized; the inner hole of the inner ring 121 is smaller than the inner hole of the outer ring 122. The mounting seat 20 is a stepped shaft, and the outer peripheral surface of the mounting seat 20 has a third step surface 22. The third step surface 22 abuts against the upper surface of the inner ring 121. A limiting sleeve 14 and a limiting hoop 15 are sleeved outside the mounting seat 20. The limiting sleeve 14 is located below the third step surface 22, and the limiting hoop 15 is located below the limiting sleeve 14. The upper surface of the limiting sleeve 14 abuts against the lower surface of the inner ring 121, and the limiting hoop 15 abuts against the lower surface of the limiting sleeve 14, so that the limiting sleeve 14 and the third step surface 22 clamp the inner edge of the inner ring 121, thereby realizing the fixed connection between the inner ring 121 and the mounting seat 20. With this structure between the mounting seat 20 and the plain bearing 12, the connection reliability between the mounting seat 20 and the plain bearing 12 is improved, and the assembly operation is convenient and fast. Of course, in other examples, other connection structures can also be adopted between the mounting seat 20 and the plain bearing 12.
[0065] In some examples, the outer peripheral surface of the mounting base 20 has a fourth stepped surface 23, which is located above the third stepped surface 22. The fourth stepped surface 23 abuts against the surface of the limiting member 13 facing away from the outer ring 122. In this way, the gravity of the mounting base 20 and the switch driving mechanism 200 can be used to press the limiting member 13, making the fixation of the plain bearing 12 more reliable.
[0066] By adopting the technical solution of this embodiment, the plain bearing 12 has good axial load-bearing capacity, can stably and reliably support the switch driving mechanism 200, and improves the reliability of the rotation of the switch driving mechanism 200 relative to the frame 10.
[0067] Refer to Figure 1 and Figure 2 As shown, in some embodiments, the mounting base 20 has a mounting hole 21 and an opening 211 communicating with the mounting hole 21. The opening 211 is used for the switch driving mechanism 200 to be inserted into the mounting hole 21; the maintenance mobile device 100 includes a fixing component 50 for fixing the switch driving mechanism 200 in the mounting hole 21.
[0068] The mounting hole 21 may refer to the hole structure provided on the mounting base 20, and this hole structure forms an opening 211 on the surface of the mounting base 20. Exemplarily, the mounting hole 21 can be a blind hole or a through hole.
[0069] In some examples, the mounting hole 21 penetrates the mounting base 20 in the up and down direction to facilitate the installation of the switch driving mechanism 200. The mounting hole 21 is coaxially arranged with the rotating hole 11, which is beneficial to improving the stability of the rotation of the switch driving mechanism 200 relative to the frame 10.
[0070] The switch driving mechanism 200 is installed by being inserted into the mounting hole 21 through the opening 211. Its operation is simple, which is convenient for the mounting base 20 to be installed on the switch driving mechanism 200, and is beneficial to improving the maintenance efficiency of the switch driving mechanism 200.
[0071] The fixing component 50 may refer to the component used to fix the switch driving mechanism 200 in the mounting hole 21; Exemplarily, the fixing component 50 can be fasteners such as bolts and screws.
[0072] In some cases, the flange 2011 on the outer peripheral wall of the switch driving mechanism 200 is pressed and installed on the maintenance bracket by a pressing plate. The pressing plate is fixed by bolts. Usually, multiple pressing plates are spaced apart circumferentially along the flange 2011 to achieve multi-point pressing, improving the stability of the switch driving mechanism 200 fixed on the maintenance bracket. On the one hand, the locking force of this method is limited, and there is a risk that the switch driving mechanism 200 is not firmly fixed. On the other hand, the setting of multiple pressing plates requires using a wrench to tighten them one by one during assembly, which is time-consuming and laborious.
[0073] In some embodiments, a flange 2011 located within the mounting hole 21 is provided on the outer peripheral wall of the switch driving mechanism 200; the fixing assembly 50 further includes a first fixing member 51 and a second fixing member 52. The first fixing member 51 abuts against the side surface of the flange 2011 facing the opening 211; a groove 212 is provided on the inner peripheral wall of the mounting hole 21. The second fixing member 52 includes an insertion portion 521 and an abutting portion 522 connected to each other. The insertion portion 521 is inserted into the groove 212, and the abutting portion 522 abuts against the side surface of the first fixing member 51 facing the opening 211.
[0074] A flange 2011 is provided on the outer peripheral wall of the switch driving mechanism 200. When the switch driving mechanism 200 is installed in the mounting hole 21, the flange 2011 is located within the mounting hole 21.
[0075] Exemplarily, a protruding structure protruding away from its interior is provided on the outer peripheral wall of the housing of the driving unit 201.
[0076] The fixing assembly 50 includes a first fixing member 51 and a second fixing member 52. The first fixing member 51 is used to press the flange 2011, and the second fixing member 52 is used to press the first fixing member 51. The second fixing member 52 includes an insertion portion 521 and an abutting portion 522 connected to each other. A groove 212 is formed by the inner wall of the mounting hole 21 recessing away from the mounting hole 21. The insertion portion 521 is inserted into the groove 212, and the abutting portion 522 is located outside the groove 212. The abutting portion 522 abuts against the side surface of the first fixing member 51 facing the opening 211, thereby preventing the switch driving mechanism 200 from disengaging from the opening 211 and improving the stability of the switch driving mechanism 200 installed in the mounting hole 21. Additionally, during installation, the first fixing member 51 is placed on the surface of the flange 2011 facing the opening 211, and then the insertion portion 521 of the second fixing member 52 is inserted into the groove 212, enabling the fixing of the switch driving mechanism 200 within the mounting hole 21. Its fixing operation is simple, which is conducive to improving the assembly efficiency of the switch driving mechanism 200 and the mounting base 20 and the maintenance efficiency of the switch driving mechanism 200. Moreover, the limiting effect of the second fixing member 52 inserted into the groove 212 on the first fixing member 51 and the flange 2011 is reliable, which is conducive to improving the connection stability between the switch driving mechanism 200 and the mounting base 20.
[0077] In some embodiments, the mounting hole 21 has a fifth step surface 213. The end surface of the housing of the driving unit 201 abuts against the fifth step surface 213. The surface of the flange 2011 facing away from the first fixing member 51 is flush with the end surface of the housing of the driving unit 201, and the flange 2011 also abuts against the fifth step surface 213. By clamping the flange 2011 between the fifth step surface 213 and the first fixing member 51, the fixing of the switch driving mechanism 200 within the mounting hole 21 is achieved.
[0078] In some embodiments, the fixing component 50 further includes a third fixing member 53. The third fixing member 53 includes a first fixing portion 531 and a second fixing portion 532. The first fixing portion 531 is located between the outer peripheral wall of the switch driving mechanism 200 and the abutting portion 522. One end of the first fixing portion 531 is connected to the second fixing portion 532, and the other end of the first fixing portion 531 abuts against the side surface of the first fixing member 51 facing the opening 211. The second fixing portion 532 abuts against the side surface of the abutting portion 522 facing the opening 211.
[0079] The cross-section of the third fixing member 53 is in an inverted L shape. The horizontal portion of the third fixing member 53 is the second fixing portion 532, and the vertical portion of the third fixing member 53 is the first fixing portion 531. The first fixing portion 531 is inserted between the outer peripheral wall of the switch driving mechanism 200 and the abutting portion 522. The first fixing portion 531 can limit the abutting portion 522, thereby reducing the risk of the insertion portion 521 disengaging from the groove 212 and improving the installation stability of the switch driving mechanism 200. Additionally, the second fixing portion 532 abuts against the side surface of the blocking portion facing the opening 211, such that the abutting portion 522 is located between the first fixing member 51 and the first fixing portion 531, which can block the abutting portion 522 and function to fix the second fixing member 52. At the same time, the end of the second fixing portion 532 facing away from the first fixing portion 531 abuts against the first fixing member 51, which can block the first fixing member 51 and function as the first fixing member 51, making the installation stability of the switch driving mechanism 200 better.
[0080] In some embodiments, the flange 2011 is an annular structure, and the first fixing member 51, the second fixing member 52, and the third fixing member 53 are all annular structures, thereby pressing the entire ring of the flange 2011 and making the installation stability of the switch driving mechanism 200 better.
[0081] In some embodiments, the number of the first fixing members 51 is multiple, and the multiple first fixing members 51 are circumferentially distributed along the installation hole 21.
[0082] The number of the first fixing members 51 is multiple, for example: two, three, or four or more. The multiple first fixing members 51 are circumferentially distributed along the installation hole 21. The arrangement of the multiple first fixing members 51 can increase the pressing area of the flange 2011 and make the installation stability of the switch driving mechanism 200 better. Additionally, with the design of the multiple first fixing members 51, the multiple first fixing members 51 can be sequentially inserted into the installation hole 21 along the circumference of the installation hole 21, and the installation of the first fixing members 51 is simpler, which is beneficial to shortening the fixing time of the switch driving mechanism 200 and improving the maintenance efficiency of the switch driving mechanism 200.
[0083] Exemplarily, the number of the first fixing members 51 is three, and the three first fixing members 51 form an annular structure to press the entire ring of the flange 2011.
[0084] In some embodiments, the number of the second fixing members 52 is plural, and the plural second fixing members 52 are circumferentially distributed along the mounting hole 21.
[0085] The number of the second fixing members 52 is plural, for example: two, three or more than four. The plural second fixing members 52 are circumferentially distributed along the mounting hole 21. The arrangement of the plural second fixing members 52 can increase the pressing area of the first fixing member 51, making the installation stability of the switch driving mechanism 200 better. In addition, with the design of the plural second fixing members 52, the insertion portions 521 of the plural first fixing members 51 can be inserted into the grooves 212 in sequence along the circumference of the mounting hole 21, and the installation of the second fixing members 52 is simpler, which is beneficial to shortening the fixing time of the switch driving mechanism 200 and improving the maintenance efficiency of the switch driving mechanism 200.
[0086] Exemplarily, the number of the second fixing members 52 is three, and the three second fixing members 52 form an annular structure to press the first fixing member 51 arranged in a whole circle.
[0087] In some embodiments, the number of the first fixing members 51 is plural, and the plural first fixing members 51 are circumferentially distributed along the mounting hole 21; the number of the second fixing members 52 is plural, and the plural second fixing members 52 are circumferentially distributed along the mounting hole 21, making the installation stability of the switch driving mechanism 200 better; it is beneficial to shortening the fixing time of the switch driving mechanism 200 and improving the maintenance efficiency of the switch driving mechanism 200.
[0088] In some embodiments, the number of the third fixing members 53 is plural, and the plural third fixing members 53 are circumferentially distributed along the mounting hole 21.
[0089] The number of the third fixing members 53 is plural, for example: two, three or more than four. The plural third fixing members 53 are circumferentially distributed along the mounting hole 21. The arrangement of the plural third fixing members 53 can increase the limiting area of the second fixing member 52, making the installation stability of the switch driving mechanism 200 better. In addition, with the design of the plural third fixing members 53, the plural third fixing members 53 can be installed between the second fixing member 52 and the outer peripheral wall of the switch driving mechanism 200 in sequence along the circumference of the mounting hole 21, and the installation of the third fixing members 53 is simpler, which is beneficial to shortening the fixing time of the switch driving mechanism 200 and improving the maintenance efficiency of the switch driving mechanism 200.
[0090] Exemplarily, the number of the third fixing members 53 is three, and the three third fixing members 53 form an annular structure to press the whole circle of the second fixing members 52.
[0091] In some cases, the isolation valve is not fully closed but needs to leave a certain passage. Therefore, during the maintenance process, after the main drain solenoid valve is closed, the telescopic distance of the telescopic rod 202 needs to be tested. Usually, one person uses a steel ruler to measure the distance, one person controls the power supply, and one person issues the power-on and power-off commands and reads the data. Multiple people need to cooperate to execute, which is labor-consuming, has execution errors, and when measuring, a steel ruler needs to be used to operate under the maintenance bracket, and the operation safety is poor.
[0092] Refer to Figure 1 and Figure 3 As shown in and, in some embodiments, the maintenance mobile device 100 further includes a laser ranging module 60 for detecting the telescopic distance of the telescopic rod 202 of the switch driving mechanism 200; the mounting seat 20 is provided with a receiving hole 214 for receiving the telescopic rod 202, and the laser ranging module 60 is disposed at the end of the receiving hole 214 facing away from the switch driving mechanism 200 and is disposed opposite to the end face of the telescopic rod 202.
[0093] The laser ranging module 60 may refer to a component that uses a laser to measure the telescopic distance of the telescopic rod 202.
[0094] The mounting seat 20 is provided with a receiving hole 214 for receiving the telescopic rod 202. The telescopic rod 202 can telescopically move within the receiving hole 214. At the same time, the laser ranging module 60 is located at the end of the receiving hole 214 and is opposite to the end face of the telescopic rod 202. As the telescopic rod 202 telescopes, the distance between the end face of the telescopic rod 202 and the laser ranging module 60 changes. By measuring the change in the distance between the end face and the laser ranging module 60, the telescopic distance of the telescopic rod 202 can be measured. The laser ranging module 60 can automatically measure the telescopic distance of the telescopic rod 202, requiring fewer personnel and having high measurement accuracy. In addition, when personnel operate at the bottom of the maintenance mobile device 100, it is beneficial to improve the safety of maintenance.
[0095] In some examples, the mounting hole 21 penetrates through the mounting seat 20. The part of the mounting hole 21 above the fifth step surface 213 can accommodate a part of the housing of the driving unit 201, and the part of the mounting hole 21 below the fifth step surface 213 forms the receiving hole 214. The laser ranging module 60 is installed at the bottom end of the receiving hole 214, and the laser ranging module 60 is installed on the mounting seat 20 through a bracket 83 to facilitate the fixation of the laser ranging module 60.
[0096] In some cases, during the maintenance process of the switch driving mechanism 200, it is necessary to additionally connect an external power supply by pulling a wire, and the operation is cumbersome, time-consuming and laborious.
[0097] Refer to Figure 1 and Figure 4As shown, in some embodiments, the maintenance mobile device 100 further includes a power supply device 70 provided on the frame 10. The power supply device 70 includes a first power supply and a second power supply. The first power supply is used to supply power to the test solenoid valve of the switch driving mechanism 200, and the second power supply is used to supply power to the main drain solenoid valve of the switch driving mechanism 200.
[0098] The maintenance mobile device 100 is directly integrated with the power supply device 70, and the power supply device 70 can be directly used to supply power to the switch driving mechanism 200, so as to complete the maintenance operation.
[0099] The power supply device 70 includes two power supplies separately provided. One power supply is the first power supply, and the other power supply is the second power supply. The first power supply supplies power to the test solenoid valve, thereby controlling the opening and closing of the test solenoid valve, and further controlling the opening and closing of the test drain valve. The second power supply supplies power to the main drain solenoid valve, thereby controlling the opening and closing of the main drain solenoid valve, and further controlling the opening and closing of the main drain valve. In addition, the setting of the first power supply and the second power supply also facilitates the separate control of the test solenoid valve and the main drain solenoid valve, reduces the mutual influence between the two, and improves the stability of the maintenance control.
[0100] The first power supply and the second power supply can be DC power supplies. For example, a 48V DC power supply. The first power supply and the second power supply are respectively connected to the test solenoid valve and the main drain solenoid valve through wires 82.
[0101] In some embodiments, the maintenance mobile device 100 further includes a control device. The first power supply, the second power supply and the switch driving mechanism 200 are electrically connected to the control device.
[0102] The control device can be composed of an electric control component, an information processing center and a data processing center integrated. The control device can also be a PLC controller or a computer.
[0103] The first power supply, the second power supply, the pneumatic oil pump circuit, the nitrogen circuit, the hydraulic cylinder, the oil return circuit and the laser are all electrically connected to the control device. The control device is used to control the actions of the first power supply, the second power supply, the pneumatic oil pump circuit, the nitrogen circuit, the hydraulic cylinder and the oil return circuit, so as to realize the automatic operation of the maintenance operation, which is beneficial to reducing manpower and improving the efficiency of the maintenance operation.
[0104] In some examples, the control principles of the first power supply, the second power supply and the laser ranging device are as follows:
[0105] Under the conditions of having a test, the first power supply supplies power to the test solenoid valve, the test solenoid valve opens, the second power supply supplies power to the main drain solenoid valve, the main drain solenoid valve opens, and the telescopic rod 202 moves downward; then, the second power supply stops supplying power to the main drain solenoid valve, the laser ranging module 60 starts, the main drain valve closes, the telescopic rod 202 moves downward until it stops moving, and the laser ranging module 60 stops measuring, so as to obtain test experiment data.
[0106] The maintenance mobile device according to the embodiment of the present application realizes the movement and placement of the switch driving mechanism 200 without hoisting by transforming the maintenance bracket into a movable rail trolley; the limiting structure of the three-section fixing component 50 is used to realize reliable locking and limiting after the driving switch mechanism is placed; the mounting seat 20 is rotatably connected to the frame 10, which can increase the rotational freedom of the switch driving mechanism 200 and realize multi-angle maintenance at a fixed station; the steel tape measurement is changed to laser ranging, realizing intuitive reading and high precision of test data; the power supply device 70 and the laser ranging module 60 are installed on the trolley, realizing the use of the control device to replace the cooperation of multiple staff, improving the maintenance efficiency and the safety of maintenance.
[0107] The descriptions of the above embodiments tend to emphasize the differences between the embodiments. Their similarities or similarities can be referred to each other. For the sake of brevity, they will not be repeated herein.
[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered by the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A maintenance mobile device, used in conjunction with a valve switch drive mechanism, characterized in that: The maintenance mobile device comprises: frame; A mounting seat, provided on the frame, and used for mounting the switch drive mechanism; A travel drive mechanism, arranged on the frame; A plurality of walking wheels are arranged at the bottom of the frame; the walking drive mechanism is connected to at least one of the plurality of walking wheels to drive the walking wheel to rotate.
2. The mobile maintenance device according to claim 1, characterized in that: The plurality of running wheels are used in conjunction with ground tracks.
3. The mobile maintenance device according to claim 1 or 2, characterized in that: The mounting seat is rotatably connected to the frame.
4. The mobile maintenance device according to claim 3, characterized in that: The frame is provided with a rotation hole, a plane bearing is provided in the rotation hole, and the mounting seat is rotatably mounted in the rotation hole through the plane bearing.
5. The mobile maintenance device according to claim 1 or 2, characterized in that: The mounting seat has a mounting hole and an opening connected to the mounting hole, and the opening is used for the switch drive mechanism to be inserted into the mounting hole; The maintenance mobile device comprises a fixing assembly for fixing the switch drive mechanism in the mounting hole; the outer peripheral wall of the switch drive mechanism is provided with a flange located in the mounting hole; The fixing assembly also includes a first fixing member and a second fixing member, the first fixing member abuts against the side of the flange facing the opening; the inner peripheral wall of the mounting hole is provided with a groove, the second fixing member includes an insertion portion and an abutment portion connected to each other, the insertion portion is inserted into the groove, and the abutment portion abuts against the side of the first fixing member facing the opening.
6. The mobile maintenance device according to claim 5, characterized in that: The fixing assembly also includes a third fixing member, which includes a first fixing portion and a second fixing portion, wherein the first fixing portion is located between the outer peripheral wall of the switch drive mechanism and the abutting portion, one end of the first fixing portion is connected to the second fixing portion, and the other end of the first fixing portion abuts against the side of the first fixing member facing the opening; the second fixing portion abuts against the side of the abutting portion facing the opening.
7. The mobile maintenance device according to claim 5, characterized in that: There are multiple first fixing members, and the multiple first fixing members are distributed along the circumference of the mounting hole; And / or, there are multiple second fixing members, and the multiple second fixing members are distributed along the circumference of the mounting hole.
8. The mobile maintenance device according to claim 1 or 2, characterized in that: The maintenance mobile device also includes a laser distance measurement module for detecting the telescopic distance of the telescopic rod of the switch drive mechanism; The mounting seat is provided with a receiving hole for receiving the telescopic rod, and the laser ranging module is arranged at the end of the receiving hole facing away from the switch driving mechanism and facing the end surface of the telescopic rod.
9. The mobile maintenance device according to claim 1 or 2, characterized in that: The maintenance mobile device also includes a power supply device arranged on the frame, and the power supply device includes a first power supply and a second power supply. The first power supply is used to supply power to the test solenoid valve of the switch drive mechanism, and the second power supply is used to supply power to the main leakage solenoid valve of the switch drive mechanism.
10. The mobile maintenance device according to claim 9, characterized in that: The maintenance mobile device also includes a control device, and the first power supply, the second power supply and the switch drive mechanism are electrically connected to the control device.