A device and method for testing the water pressure of a crystallizer tank in a continuous casting machine.

Abstract

This invention discloses a water pressure testing device and method for a continuous casting machine crystallizer water tank, relating to the field of continuous casting equipment testing technology. The device includes a platform, with a test water tank fixedly installed on the upper end of the platform. A water pressure assembly is used to draw water from the water tank for the water pressure test; a pneumatic assembly is used to pressurize the water tank by evacuating air; a caster assembly pushes the device via casters; a lifting assembly switches the device's operating state through staggered lifting with the casters; and a water tank connection assembly is used for fixed connection to the continuous casting machine crystallizer water tank. This invention solves the problem that traditional water pressure testing devices cannot adapt to water tanks of different structures, achieving rapid positioning and sealing connection through an adjustable connection assembly; eliminating the safety hazards of frequent water tank hoisting; and autonomously completing position transfer and state switching through a mobile device.

Description

Technical Field

[0001] This invention relates to the field of continuous casting equipment testing technology, specifically to a water pressure testing device and method for a continuous casting machine crystallizer water tank. Background Technology

[0002] Traditional hydrostatic testing methods suffer from numerous technical shortcomings during the maintenance of continuous casting machine crystallizer water tanks. Firstly, because continuous casting machines are non-standard equipment, different models of water tanks exhibit significant differences in structural dimensions and inlet / outlet positions, making it difficult to achieve universal compatibility with fixed testing devices. Secondly, existing testing methods require hoisting the entire water tank to the testing position, necessitating frequent use of overhead cranes and posing safety hazards during the hoisting process. Furthermore, the traditional testing device's hydrostatic testing system has a single connection method to the water tank, unable to be flexibly adjusted according to the actual tank structure, frequently leading to problems such as leaky connections and pipe interference during testing. More seriously, during relocation and positioning, the existing device's support structure directly rubs against the ground, easily causing equipment wear. These technical shortcomings severely impact the efficiency and accuracy of hydrostatic testing, increasing equipment maintenance costs. Summary of the Invention

[0003] The purpose of this invention is to solve the problem that traditional water pressure testing devices cannot be adapted to water tanks with different structures, and to propose a water pressure testing device and method for a continuous casting machine crystallizer water tank.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] A water pressure testing device for a continuous casting machine crystallizer water tank includes:

[0006] The device platform serves as the mounting base for the components of the experimental apparatus.

[0007] The test water tank is fixedly installed on the upper end of the device platform and is filled with water for water pressure testing.

[0008] The water pressure assembly is fixedly installed on the upper end of the device platform and is used to draw water from the water tank for water pressure testing.

[0009] The pneumatic assembly is fixedly installed on the upper end of the device platform and is used to pump air and pressurize the water tank during the water pressure test.

[0010] The caster assembly has its lifting mechanism located under the device platform, and the device is pushed by the casters.

[0011] The lifting assembly is located at the bottom of the device platform. It switches between the active and inactive states of the device by alternating lifting with the caster assembly. The lower end of the device platform is provided with a guide frame for guiding the lifting assembly.

[0012] The water tank connection assembly is installed at the bottom of the lifting assembly and is used for fixed connection with the crystallizer water tank of the continuous casting machine.

[0013] Preferably, the device also includes a drive assembly, which is fixedly installed at the lower end of the device platform and connected to the caster assembly and the lifting assembly respectively, for controlling the lifting and lowering movement of the caster assembly and the lifting assembly; when the device is not in use and needs to be moved, the caster assembly descends while the lifting assembly rises and suspends in the air, to avoid damage to the lifting assembly from friction with the ground during the movement of the device; when the device is in use, the lifting assembly descends to connect with the continuous casting machine crystallizer water tank while the caster assembly rises and suspends in the air, to avoid interference from the caster assembly with the lifting assembly when connected to the continuous casting machine crystallizer water tank.

[0014] Preferably, the water pressure assembly includes a water pump bracket fixedly installed on the upper end of the device platform, a suction water pump fixedly installed on the upper end of the water pump bracket, and three sets of connecting water pipes connected to the suction water pump. One set of connecting water pipes is connected to the test water tank, and the other two sets of connecting water pipes are connected to the lifting assembly.

[0015] Preferably, the pneumatic assembly includes a gas tank bracket and a suction pump fixedly installed on the upper part of the device platform. A gas storage tank is fixedly installed on the gas tank bracket, and a connecting air pipe is installed on the suction air pump. One end of the connecting air pipe is connected to the gas storage tank, and the other end is connected to the lifting assembly.

[0016] Preferably, the driving component includes:

[0017] The fixed base plate is an I-shaped steel plate located below the device platform. Guide sleeves are fixedly installed at its four corners. The upper end of the guide sleeve is fixedly connected to the device platform. The caster assembly is slidably connected to the inside of the guide sleeve. The side wall of the guide sleeve is provided with a sleeve groove for avoiding the drive linkage.

[0018] The drive motor is fixedly mounted on the lower end of the fixed base plate and serves as the power output of the drive assembly.

[0019] The drive shaft is fixedly mounted on the output shaft of the drive motor. A worm gear 1 is provided at the lower part of the drive shaft, and a worm gear 2 connected to the lifting assembly is provided at the upper part.

[0020] The shaft mounting base has two sets symmetrically arranged around the drive shaft and fixedly mounted on a fixed base plate. A transmission shaft is rotatably mounted on the shaft mounting base. A worm gear is fixedly mounted in the middle of the transmission shaft and meshes with a worm gear. Both ends of the transmission shaft are fixedly mounted with drive connecting rods that are connected to the caster assembly.

[0021] Preferably, the caster assembly includes caster legs slidably disposed within a guide sleeve, two sets of leg connecting plates fixedly disposed at the upper end of the caster legs, a hinge pin fixedly disposed between the two sets of leg connecting plates, and a connecting rod fork slidably connected to the hinge pin on the drive linkage; a caster base plate fixedly disposed at the lower end of the caster legs, and a swivel wheel fixedly mounted at the lower end of the caster base plate.

[0022] Preferably, the lifting assembly includes:

[0023] A double-acting lead screw is rotatably mounted on the inner side of the device platform and is perpendicular to the transmission shaft. Its middle position is fixedly mounted on a worm wheel two that meshes with a worm gear two.

[0024] The lifting slide is slidably connected to the inside of the guide frame, and two sets of slide supports are symmetrically arranged on the upper inner side of the lifting slide.

[0025] The lead screw slide is provided with two sets of threads that are symmetrically installed on opposite threaded rods on both sides of the bidirectional lead screw.

[0026] The lifting linkage has one end rotatably connected to the lead screw slide and the other end rotatably connected to the slide support on the same side.

[0027] Preferably, the water tank connection assembly includes a connecting support plate, which is installed at the lower part of the lifting assembly for connecting to the continuous casting machine crystallizer water tank. The connecting support plate is threaded with a plurality of locking bolts that are threadedly connected to the continuous casting machine crystallizer water tank. A water pipe connector connected to the water pressure assembly is provided on one side of the connecting support plate, and an air pipe connector connected to the air pressure assembly is provided on the other side of the connecting support plate. A silicone sheet for improving the sealing performance of the connection with the continuous casting machine crystallizer water tank is fixedly provided at the lower end of the connecting support plate.

[0028] Preferably, the water tank connection assembly further includes:

[0029] The second double-acting lead screw is rotatably mounted on the lower part of the lifting assembly, and the threads on both sides of the second double-acting lead screw are in opposite directions;

[0030] The regulating motor is fixedly installed at the bottom of the lifting assembly to drive the two-way lead screw to rotate.

[0031] The second lead screw slide has two sets of screws threaded onto opposite threaded rods on both sides of the second bidirectional lead screw.

[0032] The limiting bracket has one end fixedly connected to the lead screw slide seat two and the other end fixedly connected to the connecting support plate. The limiting bracket is slidably connected to the lower part of the lifting assembly and is used to provide a limiting and guiding function for the lead screw drive.

[0033] A method for testing the water pressure of a crystallizer tank in a continuous casting machine, the method comprising the following steps:

[0034] Step 1: When it is necessary to test the crystallizer water tank of the continuous casting machine, the drive motor drives the drive shaft to rotate in the forward direction. The worm gear one drives the turbine gear one on both sides and the transmission shaft to rotate in the opposite direction synchronously. The drive linkage drives the caster assembly to slide downward. At the same time, the worm gear two drives the double screw one and the turbine gear two to rotate. The screw transmission principle drives the two sets of screw slides to move synchronously in opposite directions. The lifting linkage drives the lifting slide to slide upward, so that the water tank connecting assembly is raised and suspended in the air. The universal wheels drive the device to move to the crystallizer water tank of the continuous casting machine that needs to be tested.

[0035] Step 2: After the device is moved above the water tank, adjust the position of the two sets of water tank connecting components according to the position of the inlet and outlet of the water tank to be tested. Specifically, adjust the motor to drive the two-way lead screw to rotate, and use the lead screw transmission principle to synchronously drive the two sets of lead screw slides to move in opposite directions or in opposite directions, thereby adjusting the distance between the two sets of connecting support plates to correspond to the position of the inlet and outlet of the water tank to be tested. Then connect the water pipe connector to the connecting water pipe and the air pipe connector to the connecting air pipe.

[0036] Step 3: After the position of the connecting support plate is adjusted, the drive motor drives the drive shaft to rotate in the opposite direction. The worm gear one drives the two worm wheels and the transmission shaft to rotate in the opposite direction synchronously. The drive linkage drives the caster assembly to slide upward. At the same time, the worm gear two drives the two-way lead screw one and the worm wheel two to rotate. The lead screw transmission principle drives the two sets of lead screw slides to move in opposite directions synchronously. The lifting linkage drives the lifting slide to slide downward, so that the caster assembly is raised and suspended in the air. The connecting support plate is fixedly installed on the water tank to be tested by locking bolts.

[0037] Step 4: After installation with the test water tank, use a suction pump to pump water stored in the test water tank into the test water tank. Adjust the pressure in the test water tank using the air pressure component to conduct a sealing test. After the test is completed, use a water pressure component to pump water out of the test water tank and send it into the test water tank, so that the water in the test water tank can be reused. After disassembling the connecting support plate from the test water tank, use the drive component to drive the lifting component to rise while simultaneously moving the caster component downward. When the casters touch the ground, the water tank connecting component is in a suspended state. Then, use the casters to move the device to the next testing point or storage point.

[0038] The beneficial effects of this invention are:

[0039] This invention solves the problem that traditional water pressure testing devices cannot be adapted to water tanks of different structures. It achieves rapid positioning and sealing connection through adjustable connecting components; it eliminates the safety hazards of frequent water tank hoisting; it autonomously completes position transfer and state switching through a mobile device; it reduces the intensity of manual operation; and it integrates water injection, pressure holding test and wastewater recycling processes through mechanical transmission and automated control.

[0040] This invention enables rapid and reliable connection to water tanks with different structures, eliminates installation difficulties caused by hole position deviations, and significantly reduces the risk of leakage during high-pressure testing through a multi-stage sealing structure, avoiding the overall failure problem caused by local deformation of traditional single sealing gaskets.

[0041] This invention solves the problem of friction damage between the lifting component and the ground during device movement, and also eliminates the interference of the caster assembly with the connection operation of the lifting component during testing. During movement, the lifting component is suspended in the air, protecting its structural integrity; during testing, the caster assembly retracts, providing an unobstructed working space for the lifting component, thus improving the device's service life and operational reliability. Attached Figure Description

[0042] The invention will now be further described with reference to the accompanying drawings.

[0043] Figure 1 This is a three-dimensional structural diagram of the present invention in its moving state;

[0044] Figure 2 This is an isometric structural diagram of the present invention in its moving state;

[0045] Figure 3 This is a three-dimensional structural diagram of the test state of the present invention;

[0046] Figure 4 This is an isometric structural diagram of the present invention under test conditions;

[0047] Figure 5 This is a schematic diagram of the main view structure of the test state of the present invention;

[0048] Figure 6 This is the present invention. Figure 5 Schematic diagram of the cross-sectional structure along the AA direction;

[0049] Figure 7 This is the present invention. Figure 6 Enlarged structural diagram at point B;

[0050] Figure 8 This is a schematic diagram of the assembly structure of the water tank connection component of the present invention;

[0051] Figure 9 This is a structural schematic diagram of the caster assembly of the present invention.

[0052] In the diagram: 1. Device platform; 11. Guide frame; 2. Test water tank; 3. Water pressure assembly; 31. Water pump bracket; 32. Suction water pump; 33. Connecting water pipe; 4. Air pressure assembly; 41. Air tank bracket; 42. Air storage tank; 43. Suction air pump; 44. Connecting air pipe; 5. Drive assembly; 51. Fixed base plate; 52. Guide sleeve; 521. Sleeve groove; 53. Drive motor; 54. Drive shaft; 541. Worm gear one; 542. Worm gear two; 55. Shaft mounting seat; 56. Transmission shaft; 57. Turbine gear one; 58. Drive connecting rod; 581 6. Caster assembly; 61. Caster leg; 62. Leg connecting plate; 63. Hinge pin; 64. Caster base plate; 65. Caster wheel; 7. Lifting assembly; 71. Double-acting lead screw one; 72. Turbine two; 73. Lead screw slide one; 74. Lifting link; 75. Lifting carriage; 76. Carriage support; 8. Water tank connection assembly; 81. Adjusting motor; 82. Double-acting lead screw two; 83. Lead screw slide two; 84. Limit bracket; 85. Connecting support plate; 86. Silicone sheet; 87. Water pipe connector; 88. Air pipe connector; 89. Locking bolt. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] In existing technologies, the maintenance of continuous casting machine crystallizer water tanks requires the use of fixed testing devices for water pressure testing. Due to significant structural differences between different water tank models, traditional devices cannot accommodate various tank interface specifications. During testing, frequent use of lifting equipment to move the water tank to the testing station presents problems such as difficulty in equipment movement, low work efficiency, and safety hazards associated with high-altitude hoisting. Especially for non-standardized water tanks, the connection points between the testing device and the tank are difficult to match, leading to prolonged test preparation time, and repeated disassembly and reassembly can cause wear and tear on the interfaces.

[0055] To address these issues, the research and development process revealed that the rigid structure of traditional testing devices made them incompatible with water tank interfaces of different sizes, while the fixed design limited the device's mobility. Analysis showed that designing the testing device as a self-moving structure equipped with an adjustable connection mechanism could effectively solve the adaptability and mobility problems. Further research found that using a combination of a lifting mechanism and a set of moving wheels could achieve both stable positioning and convenient movement. Simultaneously, the modular design separating the water and air pressure systems could meet different pressure testing requirements and avoid pipeline interference.

[0056] Please see Figures 1-9 As shown, this invention is a water pressure testing device for a continuous casting machine crystallizer water tank, comprising a device platform 1, a test water tank 2, a water pressure assembly 3, a pneumatic pressure assembly 4, a caster assembly 6, a lifting assembly 7, and a water tank connection assembly 8. The device platform 1 serves as the base for component installation. The test water tank 2 stores the test water. The water pressure assembly 3 performs water injection and suction, and the pneumatic pressure assembly 4 provides pressurization. The caster assembly 6 and the lifting assembly 7 switch between movement and working states through staggered lifting. A guide frame 11 constrains the lifting trajectory, and the water tank connection assembly 8 enables rapid connection to the water tank under test.

[0057] The device includes the following components: Platform 1 (1), a rigid platform supporting all functional modules (usually a welded steel plate structure for structural stability); Test water tank 2, a sealed container for storing test water (usually a stainless steel tank with adjustable volume); Hydraulic system 3, a power system for water circulation (usually a multi-channel pump with piping to meet varying flow rates); Pneumatic system 4, a gas pressurization device (usually a pump and tank 42 for adjusting test pressure); Caster assembly 6, a lifting mechanism (usually hydraulic casters 65 for device repositioning); Lifting assembly 7, a vertical motion actuator (usually a screw drive with guide rails for accurate positioning); Guide frame 11, a constraint mechanism limiting the lifting trajectory (usually a channel steel frame to prevent deviation); and Water tank connection assembly 8, an adjustable interface device (usually a multi-hole bolt connection plate for adapting to different water tank interfaces).

[0058] Specifically, the device platform 1 integrates various functional modules to form a complete testing system, and the test water tank 2 is fixedly installed to ensure water storage stability. The water pressure component 3 and the air pressure component 4 are independently installed on the upper part of the platform and connected to the water tank connection component 8 via pipelines, achieving separate control of water injection, suction, and pressurization functions. The caster assembly 6 is initially in a retracted state. When the device needs to be moved, the lifting component 7 drives the water tank connection component 8 to rise, and the caster assembly 6 simultaneously descends to contact the ground, using the casters 65 to push the device. After reaching the test position, the caster assembly 6 rises off the ground, and the lifting component 7 drives the water tank connection component 8 to descend, fixing it to the water tank under test via adjustable bolts. The guide frame 11 constrains the movement trajectory of the lifting component 7 through vertical slide rails to ensure connection accuracy. During the test, the water pressure component 3 injects water from the test water tank 2 into the water tank under test, and the air pressure component 4 adjusts the internal pressure to perform a sealing test. After the test, the water is pumped back to the test water tank 2 for reuse.

[0059] Compared to existing technologies, traditional testing devices employ a fixed structure, cannot move autonomously, and have non-adjustable interfaces. They require external hoisting equipment to transport water tanks, resulting in poor adaptability and safety hazards. This solution utilizes liftable wheels and an adaptive connection mechanism to enable autonomous movement of the device and rapid docking with water tanks of various sizes, eliminating the risks associated with hoisting operations. The modular design separating the water and air pressure systems avoids pipeline interference and improves testing efficiency. The synergistic effect of the guide frame 11 and the lifting assembly 7 ensures accurate connection positioning, overcoming the interface wear problems caused by positioning deviations in traditional devices.

[0060] Through the above technical solutions, this application effectively solves the problems of poor adaptability, inconvenient mobility, and safety hazards of traditional testing devices. The liftable and movable mechanism enables rapid switching between the device's working and mobile states, avoiding the risks of manual handling. Adjustable connecting components adapt to water tank interfaces of different sizes, significantly shortening test preparation time. Independent control of the water pressure and air pressure systems meets diverse testing needs and improves testing efficiency. The guiding mechanism ensures lifting and positioning accuracy, extending the equipment's service life. The overall solution, while ensuring testing accuracy, achieves miniaturization and mobility of the device, making it suitable for complex working environments.

[0061] Please see Figures 5-6 As shown, this application further proposes a drive assembly 5, which is fixedly installed at the lower end of the device platform 1 and connected to the caster assembly 6 and the lifting assembly 7 respectively, for controlling the lifting and lowering movement of the caster assembly 6 and the lifting assembly 7; when the device is not in use and needs to be moved, the caster assembly 6 descends while the lifting assembly 7 rises and is suspended in the air, to avoid damage caused by friction between the lifting assembly 7 and the ground during the movement of the device; when the device is in use, the lifting assembly 7 descends and connects to the crystallizer water tank of the continuous casting machine while the caster assembly 6 rises and is suspended in the air, to avoid interference from the caster assembly 6 when the lifting assembly 7 is connected to the crystallizer water tank of the continuous casting machine.

[0062] The drive assembly 5 refers to the device that enables the caster assembly 6 and the lifting assembly 7 to alternately rise and fall through a mechanical transmission mechanism. Specifically, this can be achieved using a worm gear transmission combined with a linkage mechanism. Its direct connection with the two sets of actuators ensures synchronized movement. The alternating lifting mechanism refers to driving the two sets of mechanisms in opposite directions through a single power source. This can be achieved using a two-way lead screw or rack and pinion structure. This design ensures that the lifting assembly 7 is out of contact with the ground during movement, and the caster assembly 6 is out of its working position during testing. The suspended avoidance mechanism refers to using the lifting motion to disengage non-working parts from contact. This can be achieved using a guide sleeve 52 in conjunction with the lifting carriage 75, avoiding friction or interference during movement.

[0063] Specifically, the drive assembly 5 transmits power to the transmission shaft 56 through the meshing of worm gear 541 and turbine gear 57. The drive connecting rods 58 at both ends of the transmission shaft 56 drive the caster legs 61 to slide along the guide sleeve 52, thereby raising and lowering the caster assembly 6. Simultaneously, the meshing of worm gear 542 and turbine gear 72 drives the bidirectional lead screw 71 to rotate, which, through the cooperation of the lead screw slide 73 and the lifting connecting rod 74, drives the lifting carriage 75 to slide along the guide frame 11. When the drive motor 53 rotates in the forward direction, the caster legs 61 extend downwards to bring the caster wheel 65 into contact with the ground, while the lifting carriage 75 retracts upwards to suspend the water tank connecting assembly 8. When rotating in the reverse direction, the caster legs 61 retract to lift the caster wheel 65 off the ground, and the lifting carriage 75 extends downwards to connect the water tank connecting assembly 8 with the water tank under test. Thus, the motion states of the two mechanisms are linked and switched through the same drive source, ensuring that the positions of the components under movement and testing conditions do not interfere with each other.

[0064] Compared to existing technologies, traditional devices suffer from wear due to direct contact between the lifting component 7 and the ground during movement, and the casters are prone to interference when in the working position during testing. This solution, however, achieves alternating lifting through a mechanical linkage mechanism, automatically switching working modes without manual intervention. This eliminates component friction wear and avoids spatial interference issues.

[0065] Through the above technical solution, this application solves the problem of friction damage between the lifting component 7 and the ground during device movement, and also eliminates the interference of the caster component 6 on the connection operation of the lifting component 7 during the test state. The lifting component 7 is suspended during movement, protecting its structural integrity; during testing, the caster component 6 retracts, providing an unobstructed working space for the lifting component 7, thus improving the service life and operational reliability of the device.

[0066] Please see Figures 1-4 As shown, this application further proposes a water pressure testing device for a continuous casting machine crystallizer water tank, including a water pressure assembly 3. The water pressure assembly 3 includes a water pump bracket 31 fixedly installed on the upper end of the device platform 1, a suction water pump 32 fixedly installed on the upper end of the water pump bracket 31, and three sets of connecting water pipes 33 connected to the suction water pump 32. One set of connecting water pipes 33 is connected to the test water tank 2, and the other two sets of connecting water pipes 33 are connected to the lifting assembly 7.

[0067] The pump bracket 31 is a support structure used to fix the suction pump 32. It can be implemented using a welded or bolted metal frame, providing a stable installation foundation for the suction pump 32 and preventing pipe loosening due to vibration during operation. The suction pump 32 is a power device used to achieve water circulation, which can be a centrifugal pump or a plunger pump. It forms a closed-loop water circuit with the test water tank 2 and the lifting assembly 7 through three sets of connecting water pipes 33. The three sets of connecting water pipes 33 are a pipeline system with independent flow directions, which can be implemented using flexible or rigid pipes of different diameters. One set connects to the test water tank 2 for water storage, while the other two sets connect to the inlet and outlet of the water tank under test through the lifting assembly 7, separating the functions of water injection and drainage.

[0068] Specifically, the suction pump 32 is fixed to the device platform 1 via the pump bracket 31. Water in the test water tank 2 is drawn into the suction pump 32 through a set of connecting water pipes 33, and then injected into the test water tank connected to the lifting assembly 7 through two other sets of connecting water pipes 33. After the water pressure test is completed, the suction pump 32 reverses its rotation, drawing water from the test water tank back into the test water tank 2 through one set of connecting water pipes 33, while the other set of connecting water pipes 33 serves as a drainage channel to assist in water circulation. The lifting assembly 7 adjusts its height to align the connecting water pipes 33 with the interfaces of water tanks at different locations, thus adapting to water tanks of different structures. The independent arrangement of the three sets of connecting water pipes 33 avoids fluid interference caused by switching between water injection and drainage in a single pipeline, while the closed-loop design of the test water tank 2 enables the reuse of water sources.

[0069] Compared to existing technologies, traditional hydrostatic testing devices typically use a single pipeline to connect the water tank, making it impossible to achieve independent control of water injection and drainage simultaneously. Furthermore, the fixed pipeline position makes it incompatible with water tanks with different interface layouts. This solution solves the problems of pipeline interference and compatibility by setting up three sets of connecting water pipes 33, separating the water injection, drainage, and storage pipelines, and adjusting the connection positions using the lifting assembly 7. Simultaneously, the closed-loop connection between the test water tank 2 and the suction pump 32 enables the recycling of test water, reducing water consumption.

[0070] Through the above technical solution, this application achieves the recycling of water source during the hydrostatic test, avoiding efficiency loss during the switching between water injection and drainage of a single pipeline. The cooperation of two sets of independently connected water pipes 33 and the lifting assembly 7 allows for flexible adjustment of the pipeline connection position, adapting to water tank interfaces of different structures. The fixed installation of the water pump bracket 31 effectively reduces vibration interference during equipment operation, ensuring the stability of the pipeline connection.

[0071] Please see Figures 1-4As shown, this application further proposes that the pneumatic assembly 4 includes a gas tank bracket 41 and a suction pump 43 fixedly installed on the upper end of the device platform 1. A gas storage tank 42 is fixedly installed on the gas tank bracket 41, and a connecting air pipe 44 is installed on the suction pump 43. One end of the connecting air pipe 44 is connected to the gas storage tank 42, and the other end is connected to the lifting assembly 7.

[0072] The gas tank support 41 is a supporting structure for supporting the gas storage tank 42. It can be fixed to the device platform 1 by welding or bolting, ensuring the positional stability of the gas storage tank 42 during the test through rigid connection. The gas storage tank 42 is an independently installed compressed air storage container, specifically a cylindrical pressure vessel made of stainless steel, providing continuous gas supply under different test conditions through independent gas source storage. The suction pump 43 is a power device with bidirectional gas transmission function, specifically a piston pump, which switches between pressurization and gas recovery through forward and reverse rotation control. The connecting air pipe 44 is a gas transmission pipeline with telescopic characteristics, specifically a spirally wound steel wire reinforced rubber hose, which adapts to changes in the height of the lifting assembly 7 through flexible connection.

[0073] Specifically, the fixed installation of the gas tank bracket 41 and the device platform 1 forms a rigid support structure, maintaining the horizontal state of the gas storage tank 42 through a three-point positioning method. The gas storage tank 42 forms a closed-loop air circuit with the suction pump 43 through a flange interface. When a pressurization test is performed, the suction pump 43 pressurizes the gas in the tank and delivers it to the test water tank corresponding to the lifting assembly 7 through the connecting air pipe 44. After the test is completed, the suction pump 43 reverses and returns the gas to the gas storage tank 42. The connecting air pipe 44 achieves axial expansion and contraction through a spiral winding structure during the movement of the lifting assembly 7, maintaining airtightness while eliminating stress caused by changes in pipe length. The separate layout of the suction pump 43 and the gas storage tank 42 allows the pump module to be disassembled separately during equipment maintenance, avoiding downtime of the entire system.

[0074] Compared to existing technologies, traditional hydrostatic testing devices use a fixed air compressor directly connected to the test water tank, resulting in a fixed pipeline length that cannot adapt to the installation positions of water tanks of different sizes. This solution uses an air storage tank 42 as a buffer air source, coupled with a retractable connecting air pipe 44, allowing the air pressure supply system to adapt to changes in the water tank connection position caused by the lifting assembly 7. In existing technologies, rigid pipelines directly connecting the air pump to the water tank are prone to leakage during equipment movement. This solution uses a closed-loop air circuit system to achieve gas recycling, reducing energy consumption.

[0075] Through the above technical solutions, this application achieves dynamic adaptation between the air pressure supply system and the lifting component 7, enabling the same set of equipment to perform air pressure tests on water tanks at different installation heights; through the separate design of the air storage tank 42 and the suction air pump 43, the equipment maintenance efficiency is improved while ensuring air pressure stability; by utilizing the expansion and contraction characteristics of the flexible connecting air pipe 44, the influence of pipeline stress on sealing performance during equipment movement is eliminated.

[0076] Please see Figures 5-7 As shown, this application further proposes a drive assembly 5 including a fixed base plate 51, a drive motor 53, a drive shaft 54, and a shaft mounting base 55. The fixed base plate 51 is an I-shaped steel plate located below the device platform 1. Guide sleeves 52 are fixedly installed at each of its four corners. The upper ends of the guide sleeves 52 are fixedly connected to the device platform 1. The caster assembly 6 is slidably connected to the inside of the guide sleeves 52. The side wall of the guide sleeves 52 is provided with sleeve grooves 521 for avoiding the drive linkage 58. The drive motor 53 is fixedly installed at the lower end of the fixed base plate 51. The drive shaft 54 ​​is fixedly installed on the output shaft of the drive motor 53. A worm gear 541 is provided at its lower part, and a worm gear 542 connected to the lifting assembly 7 is provided at its upper part. Two sets of shaft mounting seats 55 are symmetrically arranged around the drive shaft 54 ​​and fixedly mounted on the fixed seat plate 51. A transmission shaft rod 56 is rotatably mounted on the shaft mounting seat 55. A worm gear 57 that meshes with the worm gear 541 is fixedly mounted in the middle of the transmission shaft rod 56. Both ends of the transmission shaft rod 56 are fixedly mounted with drive connecting rods 58 that are connected to the caster assembly 6.

[0077] Specifically, when the drive motor 53 starts, the drive shaft 54 ​​drives the worm gear 1 541 and worm gear 2 542 to rotate synchronously. Worm gear 1 541, through meshing with worm wheel 1 57, drives two symmetrically distributed transmission shafts 56 to rotate in opposite directions. The drive connecting rods 58 at both ends of the transmission shafts 56 then swing symmetrically, pushing the caster support legs 61 to move vertically up and down along the guide sleeve 52. Worm gear 2 542, through meshing with worm wheel 2 72 in the lifting assembly 7, drives the bidirectional lead screw 71 to rotate, which in turn drives the lifting carriage 75 to move in the opposite direction via the lead screw slide 73 and the lifting connecting rod 74. Because the worm gear pair has irreversible motion characteristics, the position of the caster assembly 6 and the lifting assembly 7 can be automatically locked after the drive motor 53 stops. By controlling the synchronous operation of the two worm gears with a single drive source, the coordinated reverse movement of the caster assembly 6 and the lifting assembly 7 is achieved, ensuring that the lifting assembly 7 is completely off the ground when the device moves, and that the caster assembly 6 is completely retracted to avoid interference when in use.

[0078] Compared to existing technologies, traditional devices use independent hydraulic or pneumatic cylinders to control the casters and lifting mechanism separately, leading to problems of component interference due to asynchronous control. This solution achieves mechanical forced synchronization through a worm gear transmission mechanism. The single-axis double-worm structure ensures strict synchronization of the reverse movements of the two sets of actuators, solving the timing error problem inherent in multi-power source control. Compared to existing technologies using rack and pinion drives, the worm gear transmission has a self-locking function, effectively preventing accidental displacement of the device under gravity.

[0079] Through the above technical solution, this application achieves mechanical linkage control between the caster assembly 6 and the lifting assembly 7. The worm gear transmission mechanism ensures that the two sets of actuators move in strict synchronous and opposite directions, completely eliminating the risk of friction between the lifting assembly 7 and the ground during device movement. Simultaneously, it completely eliminates interference from the caster assembly 6 on the lifting motion during use. The structural design of using a single drive source to control dual actuators significantly simplifies the complexity of the control system while ensuring motion accuracy and improving the reliability of device operation.

[0080] Please see Figures 1-9 As shown, this application further proposes a caster assembly 6 including a caster leg 61 slidably disposed within a guide sleeve 52, two sets of leg connecting plates 62 fixedly disposed at the upper end of the caster leg 61, a hinge pin 63 fixedly disposed between the two sets of leg connecting plates 62, a connecting rod fork 581 slidably connected to the hinge pin 63 disposed on the drive link 58; a caster base plate 64 fixedly disposed at the lower end of the caster leg 61, and a swivel wheel 65 fixedly mounted at the lower end of the caster base plate 64.

[0081] Specifically, when the drive shaft 56 rotates, the connecting fork 581 at the end of the drive linkage 58 forms a sliding pair with the hinge pin 63 through a sliding groove, converting the rotational motion into the vertical lifting and lowering motion of the caster outrigger 61 along the guide sleeve 52. The rigid frame formed by the two sets of outrigger connecting plates 62 can withstand the lateral load during the lifting process and prevent the caster outrigger 61 from deflecting. The caster base plate 64 contacts the ground through the casters 65, providing stable support and flexible steering function when the device moves. The linear bearing inside the guide sleeve 52 can reduce the frictional resistance when the caster outrigger 61 slides, ensuring the smoothness of the lifting and lowering action.

[0082] Compared to existing technologies, traditional caster lifting mechanisms often use hydraulic cylinders or pneumatic push rods, resulting in complex piping and high maintenance costs. This solution, however, achieves purely mechanical lifting control through a combination of mechanical linkages and guide sleeves 52, avoiding the leakage risks associated with fluid transmission systems. Furthermore, in existing technologies, the caster outriggers 61 and drive mechanisms are often rigidly connected, which is prone to jamming due to assembly errors. In contrast, the sliding fit design of the linkage fork 581 and hinge pin 63 in this solution can adapt to minute angular deviations, ensuring reliable transmission.

[0083] Through the above technical solutions, this application solves the problem of unstable movement caused by transmission backlash during the lifting of the caster assembly 6. The dual constraint of the guide sleeve 52 and the outrigger connecting plate 62 ensures vertical lifting accuracy. The mechanical linkage transmission structure simplifies the complexity of the drive system and reduces manufacturing costs. The sliding pair design of the hinge pin 63 and the connecting rod fork 581 improves the fault tolerance of the kinematic pair and avoids mechanism jamming caused by machining errors. The combination of the caster base plate 64 and the swivel wheel 65 ensures load-bearing strength while enabling multi-directional flexible steering during device movement.

[0084] Please see Figures 3-7 As shown, this application further proposes a lifting assembly 7 of a continuous casting machine crystallizer water tank water pressure test device, including a bidirectional lead screw 71, a turbine 72, a lifting slide 75, a slide support 76, a lead screw slide 73, and a lifting connecting rod 74. The bidirectional lead screw 71 is rotatably mounted on the inner side of the device platform 1, perpendicular to the drive shaft 56, with the turbine 72, which meshes with the worm gear 542, fixedly mounted in its middle position; the lifting slide 75 is slidably connected to the inner side of the guide frame 11, with two sets of slide supports 76 symmetrically arranged on its upper inner side; the lead screw slide 73 is symmetrically threaded on the opposite threaded rods on both sides of the bidirectional lead screw 71 with the turbine 72 as the center; one end of the lifting connecting rod 74 is rotatably connected to the lead screw slide 73, and the other end is rotatably connected to the slide support 76 on the same side.

[0085] Among them, the double-acting lead screw 71 refers to a lead screw structure with opposite thread directions on both sides, specifically a combination of left-hand and right-hand threads. Rotational motion drives the lead screw slides 73 on both sides to move synchronously towards or away from each other, thus converting rotational motion into linear displacement. The worm gear 72 refers to a gear structure meshing with the worm 542, specifically a cast iron or steel worm wheel. The worm gear transmission transmits the power from the drive shaft 54 ​​to the double-acting lead screw 71. The lifting carriage 75 refers to a support frame that slides vertically along the guide frame 11, specifically a rectangular cross-section steel beam sliding with the guide frame 11. It is used to support the water tank connecting assembly 8 and guide its linear lifting. The carriage support 76 refers to hinge points symmetrically arranged inside the lifting carriage 75, specifically a welded or bolted ear plate structure, providing a uniform force support point for the lifting connecting rod 74. The lead screw slide 73 refers to the moving block that is threadedly engaged with the double-acting lead screw 71. Specifically, it can be implemented using a nut structure made of copper alloy or self-lubricating material, converting the rotational motion of the lead screw into its own linear movement. The lifting link 74 refers to the transmission rod connecting the lead screw slide 73 and the carriage support 76. Specifically, it can be implemented using a hinged link structure, converting the horizontal displacement of the lead screw slide 73 into the vertical movement of the lifting carriage 75.

[0086] Specifically, when the drive shaft 54 ​​drives the turbine 72 to rotate via the worm gear 542, the double-acting lead screw 71 rotates accordingly, causing the two sets of lead screw slides 73 to move synchronously in opposite directions. The horizontal displacement of the lead screw slides 73 is transmitted to the carriage support 76 through the lifting link 74, forcing the lifting carriage 75 to rise and fall vertically within the guide frame 11. Because the threads on both sides of the double-acting lead screw 71 are in opposite directions, the movement directions of the two sets of lead screw slides 73 are always opposite, causing the transmission angle of the lifting link 74 to change with the displacement, thereby precisely controlling the lifting height of the lifting carriage 75. The sliding fit between the guide frame 11 and the lifting carriage 75 constrains the movement trajectory, preventing deviation or jamming; the symmetrical distribution of the carriage support 76 ensures that the lifting link 74 is subjected to balanced forces, ensuring a smooth lifting process.

[0087] Compared with existing technologies, traditional testing devices use fixed-height connecting brackets, which cannot adapt to the installation positions of water tanks with different structures. This necessitates manual adjustment or component replacement, resulting in cumbersome operation and low positioning accuracy. In contrast, this solution utilizes the meshing transmission of a bidirectional lead screw 71 and a worm gear 72, combined with the hinged structure of the lifting connecting rod 74, to achieve stepless adjustment of the height of the lifting slide 75. This allows for precise matching of the interface positions of different water tanks. Simultaneously, the guide frame 11 ensures the straightness and stability of the lifting process, avoiding errors from manual adjustments.

[0088] Through the above technical solution, this application solves the problem that existing test devices cannot adapt to water tanks of different structures due to the fixed height of the connecting components. Through the synergistic effect of bidirectional screw drive and linkage mechanism, the height of the lifting slide 75 is precisely adjusted, enabling the water tank connecting component 8 to quickly align with the interface position of water tanks of different sizes, improving the adaptability and operational efficiency of water pressure testing, while avoiding the safety hazards caused by manual adjustment.

[0089] Please see Figures 5-8 As shown, this application further proposes a water tank connection assembly 8 including a connecting support plate 85. The connecting support plate 85 is installed on the lower part of the lifting assembly 7 for fixed connection with the crystallizer water tank of the continuous casting machine. Multiple locking bolts 89 that are threadedly connected to the water tank are installed on the connecting support plate 85. A water pipe connector 87 connected to the water pressure assembly 3 is provided on one side of the connecting support plate 85, and an air pipe connector 88 connected to the air pressure assembly 4 is provided on the other side. A silicone sheet 86 for improving the connection sealing is fixedly provided at the lower end of the connecting support plate 85.

[0090] Among them, locking bolt 89 refers to a fastener that is screwed into a pre-drilled hole in the water tank. Specifically, a standard bolt with an anti-loosening washer can be used, and its multi-hole distribution design can accommodate the installation hole spacing of different water tanks. Water pipe connector 87 refers to the pipe interface connecting the water pressure assembly 3 and the water tank. Specifically, a quick-release clamp connector can be used for easy and rapid connection to water tank inlets of different heights. Air pipe connector 88 refers to the pipe interface connecting the air pressure assembly 4 and the water tank. Specifically, a flange-type sealing connector can be used to ensure reliable transmission of high-pressure gas. Silicone sheet 86 refers to an elastic sealing material located at the bottom of the connecting support plate 85. Specifically, it can be made of corrosion-resistant silicone rubber through compression deformation to fill the gaps in the connection surface.

[0091] Specifically, when the device is moved above the water tank under test, the connecting support plate 85 is fixed to the pre-set threaded holes on the surface of the water tank by multiple sets of locking bolts 89. Since the bolt hole positions can be adjusted according to the water tank structure, the same connecting support plate 85 can adapt to the installation requirements of water tanks of different sizes. When the water pipe connector 87 is connected to the water tank inlet, the quick-release structure enables rapid connection of pipelines at different heights; the air pipe connector 88 forms a rigid connection with the air pressure interface of the water tank through the flange sealing surface, avoiding the risk of leakage caused by pipeline twisting. During the pre-tightening process of the locking bolts 89, the silicone sheet 86 is compressed and undergoes elastic deformation, automatically filling the tiny gaps between the connecting support plate 85 and the surface of the water tank caused by processing errors, forming the first sealing barrier between the contact surfaces. At the same time, the rubber sealing ring inside the flange-type air pipe connector 88 forms the second sealing line.

[0092] Compared to existing technologies, traditional devices use fixed mounting flanges and rely solely on a single rubber gasket for sealing, which cannot adapt to the differences in hole positions of non-standard water tanks, easily leading to bolt misalignment or seal failure. This solution achieves hole position self-adaptation through 89 sets of adjustable locking bolts, combined with a double sealing structure of 86 elastic silicone sheets and flange joints, effectively addressing the problem of uneven mounting surfaces of different water tanks while ensuring connection stability.

[0093] Through the above technical solution, this application can achieve rapid and reliable connection with water tanks of different structures, eliminate installation difficulties caused by hole position deviation, and significantly reduce the risk of leakage in high-pressure tests through multi-level sealing structure, avoiding the overall failure problem caused by local deformation of traditional single sealing gaskets.

[0094] Please see Figures 5-8As shown, this application further proposes that the water tank connecting assembly 8 also includes a second bidirectional lead screw 82, which is rotatably mounted on the lower part of the lifting assembly 7 and the two sides of the second bidirectional lead screw 82 have opposite thread directions; an adjusting motor 81, which is fixedly mounted on the lower part of the lifting assembly 7 to drive the second bidirectional lead screw 82 to rotate; a second lead screw slide 83, which is provided with two sets and threaded on the opposite threaded rods on both sides of the second bidirectional lead screw 82; and a limiting bracket 84, one end of which is fixedly connected to the second lead screw slide 83 and the other end is fixedly connected to the connecting support plate 85, and the limiting bracket 84 is slidably connected to the lower part of the lifting assembly 7 to provide a limiting and guiding function for the lead screw drive.

[0095] Among them, the bidirectional lead screw 82 refers to a transmission rod with reverse threads on both sides, specifically a trapezoidal threaded rod. It drives two sets of lead screw slides 83 to move synchronously in opposite directions, thereby adjusting the distance between the connecting support plates 85. The adjusting motor 81 is a drive device that provides rotational power, specifically a stepper motor or servo motor. It controls the forward and reverse rotation to switch the movement direction of the lead screw slide 83. The lead screw slide 83 is a sliding component that threads with the bidirectional lead screw 82, specifically a metal slider with internal threads, converting the rotational motion of the lead screw into linear displacement. The limiting bracket 84 is a rigid guide structure connecting the lead screw slide 83 and the connecting support plate 85, specifically a combination of a rectangular cross-section steel beam and a linear guide rail, constraining the connecting support plate 85 to move along a preset trajectory.

[0096] Specifically, when it is necessary to adapt to the interface positions of water tanks of different specifications, the adjusting motor 81 drives the bidirectional lead screw 82 to rotate, and the reverse threads on both sides cause the two sets of lead screw slides 83 to move synchronously towards or in opposite directions. The lead screw slides 83 drive the connecting support plates 85 to slide along the linear guide rail through the limiting bracket 84, thereby adjusting the distance between the two sets of connecting support plates 85. The rigid guiding effect of the limiting bracket 84 ensures the straightness of the moving trajectory of the connecting support plates 85 and avoids offset errors caused by the backlash of the lead screw transmission. By controlling the rotation angle of the adjusting motor 81, the distance between the connecting support plates 85 can be precisely adjusted to the target position, so that it perfectly matches the inlet and outlet distribution of the water tank under test.

[0097] Compared with existing technologies, traditional methods rely on manual adjustment of the connecting mechanism, resulting in low adjustment accuracy and poor efficiency. This solution, however, achieves precise electric control of the spacing between the connecting support plates 85 through the cooperation of the bidirectional lead screw 82 and the adjusting motor 81, eliminating human error. The guiding constraint of the limit bracket 84 overcomes the tendency for deviation in traditional lead screw drives, ensuring the stability of the moving trajectory of the connecting support plates 85.

[0098] Through the above technical solution, this application can quickly adjust the spacing of the connecting support plates 85 according to the interface distribution characteristics of non-standard water tanks, achieving precise docking with water tanks of different specifications. The electric adjustment method significantly improves docking efficiency and avoids the tedious operation of repeated manual adjustments. The rigid guide structure ensures the accuracy of the positioning of the connecting support plates 85, effectively solving the compatibility problem caused by differences in water tank structure.

[0099] Please see Figures 1-9As shown, this application further proposes a method for water pressure testing of a continuous casting machine crystallizer water tank, including the following steps: When it is necessary to test the continuous casting machine crystallizer water tank, the drive motor 53 drives the drive shaft 54 ​​to rotate in the forward direction, and drives the two turbines 57 and the transmission shaft 56 to rotate synchronously in the opposite direction through the worm gear 541. The drive connecting rod 58 drives the caster assembly 6 to slide downward. At the same time, the worm gear 542 drives the bidirectional lead screw 71 and the turbine 72 to rotate. The lead screw transmission principle drives the two sets of lead screw slides 73 to move synchronously in opposite directions. The lifting connecting rod 74 drives the lifting slide 75 to slide upward, so that the water tank connecting assembly... The device is raised and suspended in the air, and moved to the crystallizer water tank of the continuous casting machine to be tested using the universal wheels 65. After the device is moved above the water tank, the positions of the two sets of water tank connecting components 8 are adjusted according to the positions of the inlet and outlet of the water tank to be tested. Specifically, the motor 81 is energized to drive the bidirectional lead screw 82 to rotate, and the two sets of lead screw slides 83 are moved in opposite directions or in opposite directions using the lead screw transmission principle, thereby adjusting the distance between the two sets of connecting support plates 85 to correspond to the positions of the inlet and outlet of the water tank to be tested. Then, the water pipe connector 87 is connected to the connecting water pipe 33, and the air pipe connector 88 is connected to the connecting air pipe 44. When the connecting support plate 85 is in the middle, the device is moved to the top. After the position adjustment is completed, the drive motor 53 drives the drive shaft 54 ​​to rotate in the opposite direction. This, in turn, drives the two worm gears 57 and the transmission shaft 56 to rotate synchronously in the opposite direction via the worm gear 541. The drive linkage 58 drives the caster assembly 6 to slide upwards. Simultaneously, the worm gear 542 drives the double-acting screw 71 and the worm gear 72 to rotate. Using the screw drive principle, this drives the two sets of screw slides 73 to move synchronously in opposite directions. The lifting linkage 74 drives the lifting slide 75 to slide downwards, causing the caster assembly 6 to rise and suspend in the air. The connecting support plate 85 is then fixed to the water tank under test using the locking bolts 89. After installation with the water tank under test, the system is then... The suction pump 32 pumps the water stored in the test water tank 2 into the test water tank, and adjusts the pressure in the test water tank through the air pressure component 4 to conduct a sealing test. After the test is completed, the water in the test water tank is pumped out through the water pressure component 3 and sent into the test water tank 2, so that the water in the test water tank 2 can be reused. After the connecting support plate 85 is disassembled from the test water tank, the lifting component 7 is driven to rise by the drive component 5, while the caster component 6 moves downward. When the caster 65 touches the ground, the water tank connecting component 8 is in a suspended state. Then, the caster 65 is used to move the device to the next test point or storage point.

[0100] The drive assembly 5 refers to a mechanism that uses a motor to drive a worm gear and a worm wheel to achieve mechanical transmission. Specifically, this can be achieved by having a worm gear 541 mesh with a worm wheel 57 to drive the transmission shaft 56 to rotate, and a worm gear 542 meshing with a worm wheel 72 to drive the bidirectional lead screw 71 to rotate. This is used to synchronously control the lifting and lowering actions of the caster assembly 6 and the lifting assembly 7. The bidirectional lead screw 71 is a transmission rod with opposite threads on both sides. Specifically, it can adopt a trapezoidal thread structure with symmetrical distribution on both sides. The lifting connecting rod 74 changes the position of the lifting carriage 75 by moving the lead screw slide 73 in opposite directions. The adjusting motor 81 is a power device used to drive the bidirectional lead screw 82 to rotate. Specifically, it can adopt a stepper motor with a reducer. The spacing of the connecting support plate 85 is adjusted by the displacement of the lead screw slide 83. The locking bolt 89 is a fastener used to fix the connecting support plate 85 to the water tank. Specifically, it can be a hexagonal bolt with a sealing washer to achieve interface sealing in threaded connections.

[0101] Specifically, this method uses a forward / reverse switching device on the drive motor 53 to move and test. During forward rotation, worm gear 541 drives turbine 57 to rotate, and the transmission shaft 56, via drive linkage 58, pushes caster legs 61 down along guide sleeve 52 to contact the ground. Simultaneously, worm gear 542 drives turbine 72 to rotate double-acting screw 71, causing screw slides 73 to move towards each other and lifting the lifting carriage 75 via lifting linkage 74. At this time, the universal wheel 65 moves to the target position. Upon arrival, the adjusting motor 81 drives double-acting screw 82 to rotate, causing the two sets of screw slides 83 to adjust the connecting plate 85 to the spacing matching the water tank interface, completing the rapid connection of the water pipe and air pipe. During reverse rotation of the drive motor 53, caster legs 61 retract into guide sleeve 52, lifting the universal wheel 65 off the ground. The lifting carriage 75 descends, fixing the connecting plate 85 to the water tank via locking bolts 89, eliminating interference from moving parts during testing. During the test, the water pressure component 3 and the air pressure component 4 work together. The water in the test water tank 2 is injected into the test water tank by the suction water pump 32. After the pressurization test, the wastewater can be recycled and reused.

[0102] Compared with existing technologies, traditional methods require using a crane to lift the water tank to a fixed test bench, while this method actively adapts the water tank position using a mobile device, avoiding lifting operations. Existing technologies cannot accommodate non-standard water tanks due to the fixed interface of the test bench, while this method can adapt to water tank interfaces of different sizes by adjusting the spacing of the connecting support plate 85 using a two-way screw 82. Existing technologies directly discharge test wastewater, while this method achieves water recycling through the water pressure component 3, reducing resource waste.

[0103] Through the above technical solution, this application solves the problem that traditional water pressure testing devices cannot be adapted to water tanks of different structures. It achieves rapid positioning and sealing connection through adjustable connecting components; eliminates the safety hazards of frequent water tank hoisting; and autonomously completes position transfer and state switching through mobile devices. It reduces the intensity of manual operation and integrates water injection, pressure holding test and wastewater recycling processes through mechanical transmission and automated control.

[0104] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A water pressure testing device for a continuous casting machine crystallizer water tank, characterized in that, It includes: The device platform (1) is installed as a test device component base; The test water tank (2) is fixedly installed at the upper end of the device platform (1), and the inside is provided with water for water tank hydraulic test; The water pressure assembly (3) is fixedly installed at the upper end of the device platform (1), which is used for pumping the water for water tank hydraulic test; The air pressure assembly (4) is fixedly installed at the upper end of the device platform (1), which is used for air pressure boosting for water tank hydraulic test; The caster assembly (6) is arranged in the lower part of the device platform (1) and is used to push the device through the casters; The lifting assembly (7) is arranged in the lower part of the device platform (1) and is used to switch the device between use and non-use by staggered lifting with the caster assembly (6), and the lower end of the device platform (1) is provided with a guide frame (11) for guiding the lifting of the lifting assembly (7); The water tank connecting assembly (8) is installed at the lower part of the lifting assembly (7) and is used to be fixedly connected with the continuous casting machine crystallizer water tank; It also includes a drive assembly (5) fixedly installed at the lower end of the device platform (1) and connected with the caster assembly (6) and the lifting assembly (7) respectively, which is used to control the lifting movement of the caster assembly (6) and the lifting assembly (7); when the device is not in use and needs to be moved, the caster assembly (6) is lowered while the lifting assembly (7) is lifted upward to avoid damage caused by the friction between the lifting assembly (7) and the ground during the movement of the device; when the device is in use, the lifting assembly (7) is lowered to be connected with the continuous casting machine crystallizer water tank while the caster assembly (6) is lifted upward to avoid interference between the caster assembly (6) and the lifting assembly (7) when the lifting assembly (7) is connected with the continuous casting machine crystallizer water tank; The drive assembly (5) includes: The fixed seat plate (51) is in the shape of an I-shaped steel plate and is located below the device platform (1), and guide sleeves (52) are fixedly arranged at the four corners of the fixed seat plate (51), the upper ends of the guide sleeves (52) are fixedly connected to the device platform (1), the caster assembly (6) is slidably connected to the inner side of the guide sleeve (52), and the side wall of the guide sleeve (52) is provided with a sleeve sliding groove (521) for avoiding the drive connecting rod (58); The drive motor (53) is fixedly installed at the lower end of the fixed seat plate (51) and is used as the power output of the drive assembly (5); The drive shaft (54) is fixedly installed on the output shaft of the drive motor (53), the lower part of the drive shaft (54) is provided with a worm (541), and the upper part of the drive shaft (54) is provided with a worm (542) connected with the lifting assembly (7); The shaft mounting seat (55) is symmetrically provided with two groups around the drive shaft (54) and is fixedly installed on the fixed seat plate (51), the transmission shaft (56) is rotatably installed on the shaft mounting seat (55), the middle part of the transmission shaft (56) is fixedly installed with a turbine (57) meshed with the worm (541), and the two ends of the transmission shaft (56) are fixedly installed with drive connecting rods (58) transmissionally connected with the caster assembly (6); The lifting assembly (7) includes: The two-way screw rod one (71) is rotatably installed in the inner side of the device table plate (1) and is vertically distributed with the transmission shaft rod (56), and the middle position is fixedly installed in the turbine two (72) which is meshed and connected with the worm two (542); The lifting slide (75) is slidably connected in the inner side of the guide frame (11), and the upper inner side of the lifting slide (75) is symmetrically provided with two groups of slide supports (76); The screw rod slide one (73) is provided with two groups and is symmetrically screw installed on the opposite screw rods of the two-way screw rod one (71) with the turbine two (72) as the center; The lifting connecting rod (74) is rotatably connected at one end to the screw rod slide one (73) and rotatably connected at the other end to the slide support (76) on the same side.

2. The water pressure testing device for a water box of a mold of a continuous casting machine according to claim 1, characterized by The water pressure assembly (3) comprises a water pump support (31) fixedly installed on the upper end of the device table plate (1), and the water pump support (31) is fixedly installed with a suction water pump (32) on the upper end, and the suction water pump (32) is connected with three groups of connecting water pipes (33), one group of which is connected with the test water tank (2), and the other two groups of connecting water pipes (33) are connected with the lifting assembly (7).

3. A water pressure testing device for a water box of a mold of a continuous casting machine according to claim 2, characterized in that, The air pressure assembly (4) comprises a gas tank support (41) and a suction air pump (43) fixedly installed on the upper end of the device table plate (1), the gas tank support (41) is fixedly installed with a gas storage tank (42), the suction air pump (43) is installed with a connecting air pipe (44), one end of the connecting air pipe (44) is connected with the gas storage tank (42), and the other end is connected with the lifting assembly (7).

4. The water pressure testing device for a water box of a mold of a continuous casting machine according to claim 1, characterized by The caster assembly (6) comprises a caster support leg (61) slidably arranged in the guide sleeve (52), the upper end of the caster support leg (61) is fixedly provided with two groups of leg connecting plates (62), the two groups of leg connecting plates (62) are fixedly provided with a hinge pin shaft (63) therebetween, and the driving connecting rod (58) is provided with a connecting rod yoke (581) slidably connected with the hinge pin shaft (63); the lower end of the caster support leg (61) is fixedly provided with a caster bottom plate (64), and the caster bottom plate (64) is fixedly installed with a universal wheel (65) at the lower end.

5. A water pressure testing device for a water box of a mold of a continuous casting machine according to claim 3, characterized in that, The water tank connecting assembly (8) comprises a connecting support plate (85) installed on the lower part of the lifting assembly (7) for being connected with the continuous casting machine crystallizer water tank, a plurality of locking bolts (89) screw connected with the continuous casting machine crystallizer water tank are screw installed on the connecting support plate (85), a water pipe joint (87) connected with the water pressure assembly (3) is arranged on one side of the connecting support plate (85), an air pipe joint (88) connected with the air pressure assembly (4) is arranged on the other side of the connecting support plate (85), and a silica gel sheet (86) for improving the sealing performance of the connection with the continuous casting machine crystallizer water tank is fixedly arranged at the lower end of the connecting support plate (85).

6. A water pressure testing device for a water box of a mold of a continuous casting machine according to claim 5, characterized in that, The water tank connecting assembly (8) further comprises: The two-way screw rod two (82) is rotatably installed at the lower part of the lifting assembly (7), and the screw directions of the two sides of the two-way screw rod two (82) are opposite; The adjusting motor (81) is fixedly installed at the lower part of the lifting assembly (7) for driving the two-way screw rod two (82) to rotate; The second screw rod sliding seat (83) is provided with two groups and is screwed on the opposite screw rods of the second bidirectional screw rod (82); The limiting support (84) is fixedly connected at one end to the second screw rod sliding seat (83) and at the other end to the connecting support plate (85), and is slidingly connected to the lower part of the lifting assembly (7) for providing a limiting and guiding effect for the screw rod transmission.

7. A water pressure test method for a mold water box of a continuous casting machine, the test method being based on the water pressure test device for the mold water box of the continuous casting machine according to claim 6, characterized by, The test method comprises the following steps: Step one, when the water tank of the continuous casting machine crystallizer needs to be tested, the driving motor (53) drives the driving shaft (54) to rotate forward, the worm (541) drives the two side turbines (57) and the transmission shaft rod (56) to rotate reversely synchronously, the driving connecting rod (58) drives the caster assembly (6) to slide downward, at the same time, the worm (542) drives the bidirectional screw rod (71) and the turbine (72) to rotate, the screw rod transmission principle drives the two groups of screw rod sliding seats (73) to move synchronously towards each other, the lifting connecting rod (74) drives the lifting slide (75) to slide upward, the water tank connecting assembly (8) is lifted and suspended, the universal wheel (65) drives the device to move to the water tank of the continuous casting machine crystallizer to be tested; Step two, after the device moves above the water tank, according to the position of the water inlet and outlet of the water tank to be tested, the positions of the two groups of water tank connecting assemblies (8) are adjusted; specifically, the motor (81) is powered to drive the bidirectional screw rod (82) to rotate, the screw rod transmission principle synchronously drives the two groups of screw rod sliding seats (83) to move towards each other or away from each other, so as to adjust the distance between the two groups of connecting support plates (85) to correspond to the position of the water inlet and outlet of the water tank to be tested, then the water pipe joint (87) is connected with the connecting water pipe (33), and the air pipe joint (88) is connected with the connecting air pipe (44); Step three, after the position adjustment of the connecting support plate (85) is completed, the driving motor (53) drives the driving shaft (54) to rotate reversely, the worm (541) drives the two side turbines (57) and the transmission shaft rod (56) to rotate reversely synchronously, the driving connecting rod (58) drives the caster assembly (6) to slide upward, at the same time, the worm (542) drives the bidirectional screw rod (71) and the turbine (72) to rotate, the screw rod transmission principle drives the two groups of screw rod sliding seats (73) to move synchronously away from each other, the lifting connecting rod (74) drives the lifting slide (75) to slide downward, the caster assembly (6) is lifted and suspended, and the connecting support plate (85) is fixedly installed on the water tank to be tested through the locking bolt (89); Step four, after the installation of the water tank to be tested, the water stored in the test water tank (2) is pumped into the water tank to be tested by the suction pump (32), and the pressure in the water tank to be tested is adjusted by the air pressure assembly (4) to carry out the sealing test. When the test is completed, the water in the water tank to be tested is pumped out and sent into the test water tank (2) by the water pressure assembly (3), so that the water in the test water tank (2) can be reused; after the connecting branch plate (85) is detached from the water tank to be tested, the lifting assembly (7) is driven upward by the driving assembly (5) while driving the castor assembly (6) to move downward. When the universal wheel (65) contacts the ground, the water tank connecting assembly (8) is in a suspended state, and then the device is moved to the next detection point or storage point by the universal wheel (65).

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