Lifting appliance capable of horizontally controlling lifting of outer cylinder of steam turbine

Abstract

The invention relates to the technical field of steam turbine hoisting, in particular to a hoisting tool capable of horizontally controlling hoisting of a steam turbine outer cylinder, which comprises a hoisting frame, a leveling executing mechanism, a measuring device and hoisting clasps, the hoisting clasps are respectively arranged along the periphery of the steam turbine outer cylinder to be hoisted, and the hoisting frame comprises a rectangular frame, a hoisting rod and a universal shaft; the number of the lifting rods is two, one ends of the two lifting rods are rotationally connected with the two ends of the top of the lifting frame through rotating shafts correspondingly, hanging rings are arranged at the ends, away from the lifting frame, of the lifting rods correspondingly, the number of the universal shafts is four, and the four universal shafts are rotationally connected to the corners of the bottom of the rectangular frame correspondingly; the number of the leveling executing mechanisms is four. By means of the assembly composed of the hanging bracket, the leveling executing mechanism, the measuring device and the hanging buckle, a set of hanging tool structure with high hanging stability and high precision is provided for outer cylinder hanging in the steam turbine overhauling period, and the safety and efficiency in the steam turbine outer cylinder disassembling and reassembling process are better.

Description

Technical Field

[0001] The invention relates to the technical field of steam turbine hoisting, and in particular to a hoisting device capable of controlling the hoisting level of a steam turbine outer cylinder. Background Art

[0002] During the overhaul of the steam turbine, it needs to be completely dismantled, cleaned and inspected. The weight of the low-pressure inner upper cylinder of the steam turbine is about 80,000 kg. The general special rigging is a pressed wire rope rigging, with a total of four riggings, which need to be adjusted with 4 sets of cylinder hoisting adjustment devices (matching wire rope loops). The hoisting accuracy of the steam turbine outer cylinder is relatively high, and the hoisting levelness seriously affects the safety and efficiency of the hoisting.

[0003] At present, in the process of dismantling and reinstalling the outer cylinder of the steam turbine, workers are required to manually assist in supporting the docking engagement and rope adjustment between the outer cylinder of the steam turbine and the base. It is impossible to operate remotely from a safe distance, and it is impossible to effectively avoid dangerous behaviors such as manually climbing up the outer cylinder to adjust the length of the wire rope. Therefore, a hoisting device capable of controlling the hoisting level of the outer cylinder of the steam turbine is proposed to provide a set of hoisting devices with strong lifting stability and high precision for the hoisting of the outer cylinder during the maintenance of the steam turbine, so as to improve the safety and efficiency of the dismantling and reinstalling process of the outer cylinder of the steam turbine, reduce manual intervention, and improve the convenience of operation. At the same time, the combination of the laser ranging unit and the magnetic switch realizes the real-time monitoring and adjustment of the hoisting height, and further improves the accuracy of the operation. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a hoisting device capable of controlling the hoisting level of the outer cylinder of a steam turbine, so as to provide a hoisting device structure with strong lifting stability and high precision for the hoisting of the outer cylinder during the maintenance of the steam turbine, so as to improve the safety and efficiency during the dismantling and reinstallation of the outer cylinder of the steam turbine, reduce manual intervention, and improve the convenience of operation. At the same time, the combination of the laser ranging unit and the magnetic switch realizes the real-time monitoring and adjustment of the hoisting height, further improves the accuracy of the operation, reduces manual intervention, and improves the convenience of operation. At the same time, the combination of the laser ranging unit and the magnetic switch realizes the real-time monitoring and adjustment of the hoisting height, further improves the accuracy of the operation. The hoisting level control hoisting device for the outer cylinder of the steam turbine of the present invention shows remarkable beneficial effects in improving hoisting accuracy, enhancing operational flexibility, realizing intelligent control, ensuring safety and reliability, and improving work efficiency.

[0005] The technical solution adopted by the present invention to solve the technical problem is a hoisting device capable of controlling the hoisting level of a steam turbine outer cylinder, comprising a hanger, a leveling actuator, a measuring device and a hanging buckle, wherein the hanging buckle is respectively arranged along the four sides of the steam turbine outer cylinder to be hoisted, the hanger comprises a rectangular frame, a hanging rod and a universal shaft, the hanging rod is provided with two groups, one end of the two groups of hanging rods is respectively connected to the two ends of the top of the hanger through a rotating shaft, the ends of the hanging rods away from the hanger are respectively provided with hanging rings, the universal shaft is provided with four groups, and the four groups of universal shafts are respectively connected to the corners of the bottom of the rectangular frame;

[0006] It is characterized in that four groups of the leveling actuators are provided, and the four groups of the leveling actuators are respectively arranged at the bottom of the four groups of universal joints, and the bottoms of the four groups of the leveling actuators are respectively connected to the hanging buckles at corresponding positions.

[0007] By adopting the above technical solution, through the components consisting of the hanger, the leveling actuator, the measuring device and the hanging buckle, a set of lifting equipment structures with stable lifting and high precision is provided for the outer cylinder hoisting during the overhaul of the steam turbine, so that the safety and efficiency of the steam turbine outer cylinder disassembly and reinstallation process are improved;

[0008] The hoist adopts a universal shaft to connect the hanger rod and the rectangular frame, and a flexible connection method between the leveling actuator and the lifting buckle, so that the hoist can adapt to the outer cylinder of the steam turbine of different shapes and sizes, enhancing the versatility and flexibility of the hoist. Through the setting of four sets of leveling actuators including oil cylinders, controller boxes and locking devices, the horizontal state of the outer cylinder of the steam turbine during the hoisting process can be accurately adjusted, effectively avoiding equipment damage or installation accuracy problems caused by unbalanced hoisting, and improving installation quality and efficiency;

[0009] The hoist adopts a universal shaft to connect the hanger rod and the rectangular frame, as well as a flexible connection method between the leveling actuator and the hanging buckle, so that the hoist can adapt to turbine outer cylinders of different shapes and sizes, enhancing the versatility and flexibility of the hoist.

[0010] Through the coordination of the hanger and the external crane assembly, the steam turbine outer cylinder is suspended by the leveling actuator, the distance of the steam turbine outer cylinder from the ground is measured by the measuring device, and the measurement data is sent to the leveling actuator, so that the leveling actuator can level the steam turbine outer cylinder in real time during the lifting process, ensuring the safety and efficiency of the dismantling and reinstallation of the steam turbine outer cylinder. During the lifting process, personnel can operate remotely from a safe distance, which can effectively avoid the occurrence of dangerous behaviors such as climbing up the outer cylinder to adjust the length of the wire rope.

[0011] Specifically, the leveling actuator includes an oil cylinder, a controller box and a locking device, wherein the locking device is arranged at the bottom of the oil cylinder, and the top sleeve of the output end of the oil cylinder is rotatably connected to the bottom of the universal shaft at the corresponding position through a rotating shaft.

[0012] By adopting the above technical solution, the lifting height of the four corners of the steam turbine outer cylinder lifted from the bottom of the hanger can be adjusted by telescoping the oil cylinder, so as to help the stability and assembly efficiency during the lifting and maintenance and lowering and reinstallation of the steam turbine outer cylinder. The controller box is wirelessly connected to the measuring device, and the two cooperate to make the oil cylinder perform real-time telescoping and leveling based on the real-time height data of the four corners of the steam turbine outer cylinder from the ground, thereby ensuring the stability and accuracy during the reinstallation, and no auxiliary leveling operation by human grasping is required;

[0013] The locking device is used to lock the lifting buckle of the steam turbine outer cylinder, and after the locking device is locked in the lifting buckle, as the lifting bracket is lifted, the locking device will gradually lock the lifting buckle based on the deadweight of the steam turbine outer cylinder, which can reduce the risk of slipping of the steam turbine outer cylinder and ensure the safety of lifting the steam turbine outer cylinder. At the same time, after the lifting buckle is locked, the controller box is powered on and the measuring device is awakened to start working, so that the measuring device can work to measure the height of the steam turbine outer cylinder during lifting.

[0014] Specifically, the locking device includes a metal ring, a C-shaped claw, a slide groove and a slider, the slide groove is opened along one side of the metal ring, the slider is fixedly connected to the tail of the C-shaped claw, and the slider is slidably connected to the slide groove;

[0015] The top diameter of the metal lifting ring is larger than the bottom diameter, and the top of the metal lifting ring is hung and connected with the bottom of the cylinder sleeve of the oil cylinder, and the diameter of the C-shaped claw is consistent with the inner bottom diameter of the metal lifting ring;

[0016] A tension spring is connected to the top of the metal hanging ring, and the bottom of the tension spring is fixedly connected to the top of the C-shaped claw.

[0017] By adopting the above technical solution, the design of the locking device, especially the coordinated use of the C-shaped claw and the metal lifting ring, and the guarantee of the tension spring, the stability and safety of the lifting device during the lifting process are ensured.

[0018] Specifically, an output electrode is provided at the bottom of the metal hanging ring, and an input electrode corresponding to the output electrode is provided at the bottom of the C-shaped claw;

[0019] The controller box is provided with a cylinder remote control module, a cylinder battery and a cylinder power supply module for supplying power to the cylinder remote control module. The cylinder power supply module is installed on the cylinder remote control module. The positive electrode of the cylinder battery is connected in series with the output electrode, the negative electrode of the cylinder battery is connected with the negative electrode of the cylinder power supply module, and the positive electrode of the cylinder power supply module is connected with the input electrode.

[0020] The oil cylinder remote control module is built with an oil cylinder wireless data transceiver module and an on / off signal transmitter module.

[0021] Specifically, the measuring device includes a laser ranging unit, a magnetic switch, a first stainless steel sheet and a second stainless steel sheet, wherein the first stainless steel sheet and the second stainless steel sheet are respectively fixed to the top and one side of the laser ranging unit, and the magnetic switch is magnetically connected to the first stainless steel sheet or the second stainless steel sheet;

[0022] The laser ranging unit includes an equipment shell with a built-in mainboard, and also includes a power on / off signal receiving module, a ranging power supply module, a ranging battery, a central processing unit, a ranging wireless data transceiver module and a distance monitoring module installed on the mainboard. The ranging wireless data transceiver module is built in the central processing unit, the power on / off signal receiving module receives the start power on / off signal sent by the power on / off signal transmitting module, the output end of the ranging power supply module is connected to the input end of the power on / off signal receiving module and the central processing unit, the power on / off signal receiving module is a wireless signal receiving module with an electromagnetic valve, the electromagnetic valve of the power on / off signal receiving module is connected in series to the power supply line between the ranging power supply module and the central processing unit, the output end of the ranging battery is connected to the input end of the ranging power supply module, the ranging wireless data transceiver module is installed on the central processing unit, and a data connection is formed through a wire, and the output end of the distance monitoring module is connected to the input end of the central processing unit.

[0023] By adopting the above technical solution, by integrating the oil cylinder remote control module, the oil cylinder wireless data transceiver module and the switch signal transmission module, the remote wireless control of the leveling actuator is realized, which reduces manual intervention and improves the convenience of operation. At the same time, the combination of the laser ranging unit and the magnetic switch realizes the real-time monitoring and adjustment of the hoisting height, further improving the accuracy of the operation.

[0024] Specifically, the oil cylinder wireless data transceiver module and the distance measurement wireless data transceiver module are wifi modules or bluetooth modules.

[0025] Specifically, the distance monitoring module is an infrared laser ranging sensor.

[0026] Specifically, the oil cylinder is connected with an oil box, a hydraulic oil pump and a reversing solenoid valve, the oil box, the hydraulic oil pump and the reversing solenoid valve are all assembled in a controller box, the hydraulic oil pump is connected with the reversing solenoid valve and the oil box through an oil pipe, and the reversing solenoid valve is connected with the oil cylinder through an oil pipe;

[0027] The oil box, hydraulic oil pump, reversing solenoid valve and other components connected to the oil cylinder provide stable power support for the oil cylinder and can be debugged through manual control, which increases the reliability and stability of the system.

[0028] The output end of the oil cylinder remote control module is electrically connected to the input end of the hydraulic oil pump and the reversing solenoid valve through a wire, the power supply output end of the oil cylinder power supply module is electrically connected to the power receiving input end of the hydraulic oil pump and the reversing solenoid valve through a wire, and the cylinder sleeve is equipped with a manually controlled control button, switch and indicator light for manual debugging.

[0029] Specifically, the measuring device is designed and equipped with a special aluminum alloy aviation storage box. The interior of the storage box is designed with anti-collision buffer EVA in a square shape according to the shape of the equipment, which can effectively protect the equipment. A lifting handle is designed on the top of the storage box for easy transportation.

[0030] By adopting the above technical solution, the special aluminum alloy aviation storage box equipped with the measuring device not only protects the equipment from damage, but also facilitates carrying and storage. The anti-collision buffer EVA design in the storage box further enhances the protection effect of the equipment.

[0031] The beneficial effects of the present invention are as follows: through the components consisting of the hanger, the leveling actuator, the measuring device and the hanging buckle, a set of lifting equipment structures with strong lifting stability and high precision is provided for the lifting of the outer cylinder of the steam turbine during the overhaul, so that the safety and efficiency in the process of dismantling and reinstalling the outer cylinder of the steam turbine are better, the manual intervention is reduced, and the convenience of operation is improved. At the same time, the combination of the laser ranging unit and the magnetic switch realizes the real-time monitoring and adjustment of the lifting height, further improves the accuracy of the operation, and automatically wakes up the ranging and leveling work after the lifting is powered on. The horizontal control hanger for lifting the outer cylinder of the steam turbine of the present invention shows significant beneficial effects in improving the lifting accuracy, enhancing the flexibility of operation, realizing intelligent control, ensuring safety and reliability, and improving the work efficiency. It solves the existing problems that in the process of dismantling and reinstalling the outer cylinder of the steam turbine, workers need to manually assist in supporting the docking and engagement between the outer cylinder of the steam turbine and the base, and cannot be remotely operated outside a safe distance, and cannot effectively avoid the occurrence of dangerous behaviors such as manually climbing up the outer cylinder to adjust the length of the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0033] Figure 1 It is a schematic diagram of the measuring device of the present invention being installed around the bottom of the outer cylinder of the steam turbine;

[0034] Figure 2 It is a structural diagram of the hanger of the present invention;

[0035] Figure 3 It is a schematic diagram of the leveling actuator of the present invention;

[0036] Figure 4 It is a schematic diagram of the structure of the locking device of the present invention;

[0037] Figure 5 This is a schematic diagram of the structure in which the magnetic switch of the present invention is installed on the top of the laser ranging unit;

[0038] Figure 6 This is a schematic diagram of the side structure of the magnetic switch of the present invention installed on the laser ranging unit;

[0039] Figure 7 It is a schematic diagram showing that the measuring device of the present invention is mounted around the bottom of the outer periphery of the outer cylinder of the steam turbine;

[0040] Figure 8 It is a schematic diagram of electrical connection of the present invention;

[0041] In the figure: hanger 1, leveling actuator 2, cylinder 21, controller box 22, locking device 23, metal lifting ring 231, C-shaped claw 232, slide groove 233, slider 234, tension spring 235, output electrode 236, input electrode 237, turbine outer cylinder 3, hanging buckle 4, measuring device 5, laser ranging unit 51, magnetic switch 52, first stainless steel sheet 53, second stainless steel sheet 54, rectangular frame 11, suspension rod 12, hanging ring 121, hanging ring 121, universal shaft 13. DETAILED DESCRIPTION

[0042] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0043] In order to improve efficiency and progress, as an embodiment of the present invention, Figures 1 to 8 As shown, a hoisting device capable of controlling the hoisting level of a steam turbine outer cylinder of the present invention comprises a hanger 1, a leveling actuator 2, a measuring device 5 and a hanging buckle 4, wherein the hanging buckle 4 is respectively arranged along the four sides of the steam turbine outer cylinder 3 to be hoisted, the hanger 1 comprises a rectangular frame 11, a hanging rod 12 and a universal shaft 13, the hanging rod 12 is provided with two groups, one end of the two groups of the hanging rod 12 is respectively rotatably connected to the two ends of the top of the hanger 1 through a rotating shaft, the ends of the hanging rod 12 away from the hanger 1 are respectively provided with a hanging ring 121, the universal shaft 13 is provided with four groups, and the four groups of the universal shaft 13 are respectively rotatably connected to the corners at the bottom of the rectangular frame 11;

[0044] It is characterized in that four groups of the leveling actuators 2 are provided, and the four groups of the leveling actuators 2 are respectively arranged at the bottom of the four groups of universal shafts 13, and the bottoms of the four groups of the leveling actuators 2 are respectively connected to the hanging buckles 4 at corresponding positions.

[0045] When in use, the hanger 1, the leveling actuator 2, the measuring device 5 and the hanging buckle 4 provide a set of lifting equipment structures with stable lifting and high precision for the outer cylinder lifting during the maintenance of the steam turbine, so as to improve the safety and efficiency during the dismantling and reinstallation of the outer cylinder of the steam turbine, reduce manual intervention, and improve the convenience of operation. At the same time, the combination of the laser ranging unit and the magnetic switch realizes the real-time monitoring and adjustment of the lifting height.

[0046] In order to level the outer cylinder, for example, Figure 1-8 As shown, the present invention also includes that the leveling actuator 2 includes a cylinder 21, a controller box 22 and a locking device 23, the locking device 23 is arranged at the bottom of the cylinder 21, and the top sleeve of the output end of the cylinder 21 is rotatably connected to the bottom of the universal shaft 13 at the corresponding position through a rotating shaft.

[0047] When in use, after the hydraulic oil pump and the reversing solenoid valve work, the oil cylinder 21 at this group of positions can extend or retract, that is, the lifting height of the corners of this group of positions of the steam turbine outer cylinder 3 can be raised or lowered, and the steam turbine outer cylinder 3 can be leveled by the simultaneous cooperation of the four groups of leveling actuators 2 and the laser ranging unit 51, thereby ensuring that the four corners of the steam turbine outer cylinder 3 can obtain instant automatic locking protection and leveling movement during the period when the steam turbine outer cylinder 3 is lifted.

[0048] In order to lock the hanging buckle of the outer cylinder of the steam turbine, for example, Figure 4 As shown, the present invention also includes that the locking device 23 includes a metal ring 231, a C-shaped claw 232, a slide groove 233 and a slider 234, the slide groove 233 is opened along one side of the metal ring 231, the slider 234 is fixedly connected to the tail of the C-shaped claw 232, and the slider 234 is slidably connected to the slide groove 233;

[0049] The top diameter of the metal ring 231 is larger than the bottom diameter, and the top of the metal ring 231 is connected to the bottom of the cylinder sleeve of the oil cylinder 21, and the diameter of the C-shaped claw 232 is consistent with the bottom diameter of the metal ring 231;

[0050] A tension spring 235 is connected to the top of the metal hanging ring 231 , and the bottom of the tension spring 235 is fixedly connected to the top of the C-shaped claw 232 .

[0051] When in use, the metal ring 231 of the locking device 23 is sleeved on the hanging buckle 4, and the hanging buckle 4 is placed in the center of the circle of the C-shaped claw 232. The lifting equipment lifts the hanger 1. During the lifting of the hanger 1, the C-shaped claw 232 is subjected to the downward pressure of the steam turbine outer cylinder 3, which causes the C-shaped claw 232 to move downward in the metal ring 231 based on the sliding guide of the slide groove 233 and the slider 234 during the lifting of the hanger 1, until the bottom of the C-shaped claw 232 touches the bottom of the metal ring 231. At this time, the opening of the C-shaped claw 232 after touching the bottom will be blocked, so that the hanging buckle 4 of the steam turbine outer cylinder 3 is locked by the C-shaped claw 232.

[0052] After the outer cylinder 3 of the steam turbine falls, the hanging buckle 4 of the outer cylinder 3 of the steam turbine releases the downward pressure on the C-shaped claw 232. Based on the upward pull of the tension spring 235 on the C-shaped claw 232, the bottom of the C-shaped claw 232 is separated from the contact with the bottom of the metal hanging ring 231, and the leveling actuator 2 is powered off and stops running.

[0053] For power and signal connections, for example, Figure 1-7 As shown, the present invention further includes that an output electrode 236 is provided at the bottom of the metal hanging ring 231, and an input electrode 237 corresponding to the output electrode 236 is provided at the bottom of the C-shaped claw 232;

[0054] The controller box 22 is provided with a cylinder remote control module, a cylinder battery and a cylinder power supply module for supplying power to the cylinder remote control module. The cylinder power supply module is installed on the cylinder remote control module. The positive electrode of the cylinder battery is connected in series with the output electrode 236, the negative electrode of the cylinder battery is connected to the negative electrode of the cylinder power supply module, and the positive electrode of the cylinder power supply module is connected to the input electrode 237.

[0055] The oil cylinder remote control module is built with an oil cylinder wireless data transceiver module and an on / off signal transmitter module.

[0056] When in use, after the C-shaped claw 232 touches the bottom, the input electrode 237 at the bottom of the C-shaped claw 232 contacts the output electrode 236. At this time, the cylinder battery in the controller box 22 is connected to the cylinder power supply module, and the cylinder remote control module is powered on. The power on and off signal transmitting module on the cylinder remote control module sends a start signal to the power on and off signal receiving module in the laser ranging unit 51 in the standby state, and the laser ranging unit 51 starts working.

[0057] To measure the horizontality of the outer cylinder hoisting, for example, Figure 5 , 6As shown in , 8, the present invention also includes that the measuring device 5 includes a laser ranging unit 51, a magnetic switch 52, a first stainless steel sheet 53 and a second stainless steel sheet 54, the first stainless steel sheet 53 and the second stainless steel sheet 54 are respectively fixed to the top and one side of the laser ranging unit 51, and the magnetic switch 52 is magnetically connected to the first stainless steel sheet 53 or the second stainless steel sheet 54;

[0058] The laser ranging unit 51 includes an equipment shell with a built-in mainboard, and also includes a power on / off signal receiving module, a ranging power supply module, a ranging battery, a central processing unit, a ranging wireless data transceiver module and a distance monitoring module installed on the mainboard. The ranging wireless data transceiver module is built in the central processing unit. The power on / off signal receiving module receives the start power on / off signal sent by the power on / off signal transmitting module. The output end of the ranging power supply module is connected to the input end of the power on / off signal receiving module and the central processing unit. The power on / off signal receiving module is a wireless signal receiving module with an electromagnetic valve. The electromagnetic valve of the power on / off signal receiving module is connected in series to the power supply line between the ranging power supply module and the central processing unit. The output end of the ranging battery is connected to the input end of the ranging power supply module. The ranging wireless data transceiver module is installed on the central processing unit and forms a data connection through a wire. The output end of the distance monitoring module is connected to the input end of the central processing unit.

[0059] When in use, the distance monitoring modules of the four groups of laser ranging units 51 measure the distance from the bottom of the turbine outer cylinder 3 to the ground, and the four groups of laser ranging units 51 exchange data through the ranging wireless data transceiver module. At the same time, the central processing unit calculates the four groups of data to obtain the data difference measured between the four groups of laser ranging units 51.

[0060] The oil cylinder wireless data transceiver module and the distance measurement wireless data transceiver module are wifi modules or bluetooth modules.

[0061] The distance monitoring module is an infrared laser distance measuring sensor.

[0062] To perform the adjustment level difference, for example, Figure 1-8 As shown, the present invention also includes that the oil cylinder 21 is connected to an oil box, a hydraulic oil pump and a reversing solenoid valve, and the oil box, the hydraulic oil pump and the reversing solenoid valve are all assembled in a controller box 22, the hydraulic oil pump is connected to the reversing solenoid valve and the oil box through an oil pipe, and the reversing solenoid valve is connected to the oil cylinder 21 through an oil pipe;

[0063] The output end of the oil cylinder remote control module is electrically connected to the input end of the hydraulic oil pump and the reversing solenoid valve through a wire, and the power supply output end of the oil cylinder power supply module is electrically connected to the power receiving input end of the hydraulic oil pump and the reversing solenoid valve through a wire. The cylinder sleeve of the oil cylinder 21 is equipped with a manually controlled control button, switch and indicator light for manual debugging.

[0064] When in use, the central processing unit calculates the four groups of data, obtains the data difference measured between the four groups of laser ranging units 51, and converts the difference into an execution command for the telescopic distance data of the corresponding group of cylinders 21. The execution command of the processed data is sent to the cylinder wireless data transceiver module in real time through the ranging wireless data transceiver module, and the corresponding hydraulic oil pump and reversing solenoid valve are controlled by the cylinder remote control module based on the command signal to make the cylinder 21 at this group of positions extend or retract.

[0065] The measuring device 5 is designed and equipped with a special aluminum alloy aviation storage box. The interior of the storage box is designed with anti-collision buffer EVA in a square shape according to the shape of the equipment, which can effectively protect the equipment. A lifting handle is designed on the top of the storage box for easy transportation.

[0066] When in use, the laser distance measuring unit 51 enters a dormant state, and after stopping operation, it is recovered by personnel and stored in an aluminum alloy aviation storage box.

[0067] When the present invention is used, the hanging ring 121 on the suspension rod 12 is hung on the hook of the overhead crane, electric hoist and other lifting equipment in the work site, so that the hanger 1 is hung, and the hanger 1 is lowered to the top of the steam turbine outer cylinder 3 that needs to be dismantled and maintained by the lifting equipment, and the locking device 23 on the bottom corner leveling actuator 2 of the hanger 1 is respectively locked to the hanging buckle 4 at the corner of the steam turbine outer cylinder 3. When locking, the metal hanging ring 231 of the locking device 23 is sleeved on the hanging buckle 4, and the hanging buckle 4 is placed in the center of the C-shaped claw 232. According to the appearance specifications of the steam turbine outer cylinder 3, after turning on the magnetic switch 52, the magnetic switch 52 is selected to be magnetically connected to the first stainless steel sheet 53 and the second stainless steel sheet 54 on the laser distance measuring unit 51, and the magnetic switch 52 is locked to the steam turbine. The outer cylinder 3 is magnetically assembled around the bottom or around the bottom of the outer periphery, during which the laser detection harness of the distance monitoring module on the laser ranging unit 51 is ensured to be perpendicular to the ground. Then the lifting equipment lifts the hanger 1. During the lifting of the hanger 1, the C-shaped claw 232 is subjected to the downward pressure of the turbine outer cylinder 3, resulting in the C-shaped claw 232 sliding downward in the metal ring 231 based on the sliding guide of the slide groove 233 and the slider 234 during the lifting of the hanger 1, until the bottom of the C-shaped claw 232 touches the bottom of the metal ring 231. At this time, the opening of the C-shaped claw 232 after touching the bottom will be blocked, so that the hanging buckle 4 of the turbine outer cylinder 3 is locked by the C-shaped claw 232, which ensures the stability of the turbine outer cylinder 3 during the lifting and improves the lifting efficiency of the turbine outer cylinder 3. In order to ensure safety during the lifting process, after the C-shaped claw 232 touches the bottom, the input electrode 237 at the bottom of the C-shaped claw 232 contacts the output electrode 236, and at this time, the cylinder battery in the controller box 22 is connected to the cylinder power supply module, and the cylinder remote control module is powered on. The power on / off signal transmitting module on the cylinder remote control module sends a start signal to the power on / off signal receiving module in the laser ranging unit 51 in the standby state, and the laser ranging unit 51 starts working. The distance monitoring modules of the four groups of laser ranging units 51 measure the distance from the bottom of the turbine outer cylinder 3 to the ground, and the four groups of laser ranging units 51 exchange data through the ranging wireless data transceiver module. At the same time, the central processing unit calculates the four groups of data to obtain the four groups of laser ranging units. The data difference measured between the two positions is measured, and the difference is converted into an execution command for the telescopic distance data of the corresponding group of oil cylinders 21. The execution command of the processed data is sent to the oil cylinder wireless data transceiver module in real time through the distance measurement wireless data transceiver module. The oil cylinder remote control module controls the corresponding hydraulic oil pump and reversing solenoid valve based on the command signal to make the oil cylinder 21 at this position extend or retract, so as to increase or decrease the lifting height of the corner of the steam turbine outer cylinder 3 at this position. The steam turbine outer cylinder 3 is leveled by the simultaneous cooperation of the four groups of leveling actuators 2 and the laser distance measurement unit 51, so as to ensure that the four corners of the steam turbine outer cylinder 3 can obtain instant automatic locking protection and leveling movement during the period when the steam turbine outer cylinder 3 is lifted.The safety and efficiency of the steam turbine outer cylinder 3 during disassembly or reinstallation are improved, and the automatic awakening distance measurement and leveling work is realized after the lifting is powered on, without the need for tedious steps such as manually starting the distance measurement and adjusting the ropes one by one, thus reducing manual intervention and improving the convenience of operation;

[0068] After the lifting of the turbine outer cylinder 3 is completed and the turbine outer cylinder 3 falls, the hanging buckle 4 of the turbine outer cylinder 3 will release the downward pressure on the C-shaped claw 232. Based on the upward pulling of the C-shaped claw 232 by the tension spring 235, the bottom of the C-shaped claw 232 will leave the contact with the bottom of the metal lifting ring 231, and the leveling actuator 2 can be powered off and stopped. At the same time, the power on and off signal receiving module of the laser ranging unit 51 loses the signal, the laser ranging unit 51 enters a dormant state and stops running, and can be recovered by personnel into an aluminum alloy aviation storage box.

[0069] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hoisting device capable of controlling the hoisting level of a steam turbine outer cylinder, characterized in that: The invention comprises a hanger (1), a leveling actuator (2), a measuring device (5) and a hanging buckle (4), wherein the hanging buckle (4) is respectively arranged along the four sides of the steam turbine outer cylinder (3) to be hoisted, the hanger (1) comprises a rectangular frame (11), a hanging rod (12) and a universal shaft (13), the hanging rod (12) is provided with two groups, one end of each of the two groups of hanging rods (12) is rotatably connected to the two ends of the top of the hanger (1) through a rotating shaft, and a hanging ring (121) is respectively arranged at one end of the hanging rod (12) away from the hanger (1), and the universal shaft (13) is provided with four groups, and the four groups of universal shafts (13) are respectively rotatably connected to the corners at the bottom of the rectangular frame (11); It is characterized in that the leveling actuators (2) are provided in four groups, the four groups of leveling actuators (2) are respectively arranged at the bottom of the four groups of universal shafts (13), and the bottoms of the four groups of leveling actuators (2) are respectively connected to the hanging buckles (4) at corresponding positions.

2. The hoisting device capable of controlling the hoisting level of the steam turbine outer cylinder according to claim 1 is characterized in that: The leveling actuator (2) comprises an oil cylinder (21), a controller box (22) and a locking device (23); the locking device (23) is arranged at the bottom of the oil cylinder (21); and the top sleeve at the output end of the oil cylinder (21) is rotatably connected to the bottom of the universal shaft (13) at a corresponding position via a rotating shaft.

3. The hoisting device capable of controlling the hoisting level of the steam turbine outer cylinder according to claim 2 is characterized in that: The locking device (23) comprises a metal hanging ring (231), a C-shaped claw (232), a slide groove (233) and a slider (234); the slide groove (233) is opened along one side of the metal hanging ring (231); the slider (234) is fixedly connected to the tail of the C-shaped claw (232); and the slider (234) is slidably connected to the slide groove (233); The top diameter of the metal hanging ring (231) is larger than the bottom diameter, and the top of the metal hanging ring (231) is hung and connected to the bottom of the cylinder sleeve of the oil cylinder (21), and the diameter of the C-shaped claw (232) is consistent with the inner bottom diameter of the metal hanging ring (231); A tension spring (235) is connected to the top of the metal hanging ring (231), and the bottom of the tension spring (235) is fixedly connected to the top of the C-shaped claw (232).

4. The hoisting device capable of controlling the hoisting level of the steam turbine outer cylinder according to claim 3 is characterized in that: An output electrode (236) is disposed at the bottom of the metal hanging ring (231), and an input electrode (237) corresponding to the output electrode (236) is disposed at the bottom of the C-shaped claw (232); The controller box (22) is provided with a cylinder remote control module, a cylinder battery and a cylinder power supply module for supplying power to the cylinder remote control module. The cylinder power supply module is installed on the cylinder remote control module. The positive electrode of the cylinder battery is connected in series with the output electrode (236), the negative electrode of the cylinder battery is connected to the negative electrode of the cylinder power supply module, and the positive electrode of the cylinder power supply module is connected to the input electrode (237). The oil cylinder remote control module is built with an oil cylinder wireless data transceiver module and an on / off signal transmitter module.

5. The hoisting device capable of controlling the hoisting level of the steam turbine outer cylinder according to claim 4 is characterized in that: The measuring device (5) comprises a laser distance measuring unit (51), a magnetic switch (52), a first stainless steel sheet (53) and a second stainless steel sheet (54), wherein the first stainless steel sheet (53) and the second stainless steel sheet (54) are respectively fixed to the top and one side of the laser distance measuring unit (51), and the magnetic switch (52) is magnetically connected to the first stainless steel sheet (53) or the second stainless steel sheet (54); The laser distance measuring unit (51) comprises a device shell with a mainboard built in, and also comprises a power on / off signal receiving module, a distance measuring power supply module, a distance measuring battery, a central processing unit, a distance measuring wireless data transceiver module and a distance monitoring module installed on the mainboard. The distance measuring wireless data transceiver module is built in the central processing unit. The power on / off signal receiving module receives a power on / off start signal sent by the power on / off signal transmitting module. The output end of the distance measuring power supply module is connected to the power on / off signal receiving module and the input end of the central processing unit. The power on / off signal receiving module is a wireless signal receiving module with an electromagnetic valve. The electromagnetic valve of the power on / off signal receiving module is connected in series to the power supply line between the distance measuring power supply module and the central processing unit. The output end of the distance measuring battery is connected to the input end of the distance measuring power supply module. The distance measuring wireless data transceiver module is installed on the central processing unit and forms a data connection through a wire. The output end of the distance monitoring module is connected to the input end of the central processing unit.

6. The hoisting device capable of controlling the hoisting level of the steam turbine outer cylinder according to claim 5, characterized in that: The oil cylinder wireless data transceiver module and the distance measurement wireless data transceiver module are wifi modules or bluetooth modules.

7. The hoisting device capable of controlling the hoisting level of the steam turbine outer cylinder according to claim 6, characterized in that: The distance monitoring module is an infrared laser distance measuring sensor.

8. The hoisting device capable of controlling the hoisting level of the steam turbine outer cylinder according to claim 7, characterized in that: The oil cylinder (21) is connected to an oil box, a hydraulic oil pump and a reversing solenoid valve, the oil box, the hydraulic oil pump and the reversing solenoid valve are all assembled in a controller box (22), the hydraulic oil pump is connected to the reversing solenoid valve and the oil box via an oil pipe, and the reversing solenoid valve is connected to the oil cylinder (21) via an oil pipe; The output end of the oil cylinder remote control module is electrically connected to the input end of the hydraulic oil pump and the reversing solenoid valve through a wire, and the power supply output end of the oil cylinder power supply module is electrically connected to the power receiving input end of the hydraulic oil pump and the reversing solenoid valve through a wire. The cylinder sleeve of the oil cylinder (21) is equipped with a manually controlled control button, a switch and an indicator light for manual debugging.

9. The hoisting device capable of controlling the hoisting level of the steam turbine outer cylinder according to claim 8, characterized in that: The measuring device (5) is designed and equipped with a special aluminum alloy aviation storage box. The interior of the storage box is designed with anti-collision buffer EVA in a square shape according to the shape of the device, which can effectively protect the device. A lifting handle is designed on the top of the storage box.

Images