An automatic lifting platform for indoor installation of GIS

Abstract

The present application relates to an automated lifting platform for indoor installation of GIS, on which a battery pack, a control system and a hydraulic pump station are installed; a wheel group for carrying the entire device and a hydraulic leg for lifting the lifting assembly as a whole are installed below the lifting assembly; a top plate assembly for carrying a GIS unit assembly is installed above the lifting assembly; an inclination sensor for detecting the inclination of the top plate assembly and a pressure sensor for detecting the pressure of the top plate assembly are also installed on the top plate assembly; the control system is connected to the battery pack, the hydraulic pump station, the inclination sensor, the pressure sensor and the remote control device to realize the automatic lifting of the lifting assembly. The present application meets the requirements of large volume and heavy weight of GIS, fills the gap in the industry, and enables the use of more specialized tools for indoor installation of GIS, without the need to build a temporary platform, thus reducing costs and alleviating the labor intensity of personnel.

Description

Technical Field

[0001] The present application relates to the field of GIS disassembly and assembly operations, and specifically to an automated lifting platform for indoor installation of GIS. Background Art

[0002] With the development of the electric power industry, the increase in the transmission voltage level, and the formation of large-scale cross-regional networking, high requirements are placed on the reliability of the power transmission and transformation equipment of the power system. Compared with traditional open high-voltage equipment, gas-insulated fully enclosed switchgear, referred to as GIS (GAS INSUIATED SWITCHGEAR), has obvious advantages: compact structure, greatly reduced footprint of the entire device; not affected by the external environment, high operating reliability; long maintenance cycle. Since its advent in the 1960s, GIS has developed rapidly and occupied an important position in the power transmission and transformation system. In order to improve the reliability and service life of GIS equipment, the use of GIS has gradually shifted from outdoor to indoor. In order to ensure that the indoor environment is dry and there is no water accumulation, the ground height of the first floor of the GIS building structure is usually higher than the outdoor ground by a certain height. When installing indoors, first use a crane to hoist the GIS to the cement platform at the entrance to ensure that it is at the same level as the indoor floor, and then use rollers or tanks to manually drag it into the room. However, there are currently the following problems with indoor installation:

[0003] 1. The existing building platform cannot meet the needs of indoor installation of GIS

[0004] GIS unit compartments are large in size and heavy in weight. The width of the bottom beam is usually between 0.8 meters and 2 meters, and the maximum length can be 7 to 8 meters. The width of the GIS house door of the substation is usually 3 to 4 meters. Therefore, the GIS unit compartment can only be entered vertically during indoor installation. Existing building platforms are usually small in size, usually with an extended width of only 1-2 meters. They are mainly used for personnel entry and exit, and it is difficult to meet the requirements for placing extra-long GIS unit compartments. The current solution is that when the GIS unit compartment is hoisted by a crane, the installer pulls a part of the GIS unit compartment into the room before the equipment lands, and then slowly drops it to the entry platform. There are many problems with this solution:

[0005] 1) The crane rope is close to the door frame and is easy to scratch and damage the building;

[0006] 2) Using a large number of people to pull the machine hard, the labor intensity is high and the operation has serious safety hazards;

[0007] 3) If the GIS unit chassis is too long, there will be too much exposed part and there is a risk of overturning.

[0008] 2. Some buildings have no entry platform

[0009] In order to save building costs or for other reasons, some substations do not have indoor platforms and need to use temporary simple platform construction methods.

[0010] 3. Problems in building a temporary simple platform:

[0011] 1) The construction of a temporary platform requires construction materials, which increases the cost of additional materials. The construction process is time-consuming and labor-intensive, which increases the burden of additional labor;

[0012] 2) The temporary platform is built only based on experience, and it is uncertain whether the structural strength meets the requirements, which poses a safety hazard;

[0013] 3) When a temporary platform is built on a soft foundation, it may sink or tilt during use. The temporary platform lacks the ability to automatically adjust the height and angle, and there is a risk of overturning. Summary of the invention

[0014] The purpose of the embodiment of the present application is to provide an automated lifting platform for indoor installation of GIS, which meets the large volume and heavy weight requirements of GIS, fills the gap in the industry, and enables the use of more specialized tools for indoor installation of GIS, without the need to build a temporary platform, thereby reducing costs and alleviating labor intensity.

[0015] To achieve the above objectives, this application provides the following technical solutions:

[0016] The embodiment of the present application provides an automated lifting platform for indoor installation of GIS, including a lifting assembly, a battery pack, a control system, a hydraulic pump station, a walking wheel group, a hydraulic support leg, a top plate assembly, a tilt sensor, a pressure sensor and a remote control device.

[0017] The battery pack, control system and hydraulic pump station are installed on the lifting assembly;

[0018] A walking wheel group for carrying the entire device and a hydraulic support leg for lifting the lifting assembly as a whole are installed below the lifting assembly;

[0019] A top plate assembly for carrying a GIS unit assembly is installed above the lifting assembly;

[0020] The top plate assembly is also equipped with an inclination sensor for detecting the inclination of the top plate assembly and a pressure sensor for detecting the pressure of the top plate assembly;

[0021] The control system is connected to the battery pack, the hydraulic pump station, the inclination sensor, the pressure sensor and the remote control device to realize the automatic lifting of the lifting component.

[0022] The end of the top plate assembly is also equipped with a guide plate assembly for realizing a transition connection between the top plate assembly bearing surface and the building installation surface.

[0023] The lifting assembly includes a bottom frame assembly of a lifting mechanism, a lifting ring, a lifting servo motor, a reduction gear box, a transverse transmission screw, a worm gear box, a longitudinal transmission screw, a screw nut, a mobile push plate, a scissor-type lifting assembly, and a load-bearing beam assembly. A lifting servo motor and a reduction gear box matching the lifting servo motor are installed on the bottom frame assembly of the lifting mechanism. A transverse transmission screw is installed in the frame of the bottom frame assembly of the lifting mechanism. Worm gear boxes are installed at both ends of the transverse transmission screw. The power output shaft of the reduction gear box is connected to the worm gear box. Two longitudinal transmission screws are also connected to the worm gear box. One end of the longitudinal transmission screw is connected to the worm gear box, and the other end is connected to the mobile push plate through a screw nut. Scissor-type lifting assemblies are installed at both ends of the bottom frame assembly of the lifting mechanism. The mobile push plate pushes the scissor-type lifting assembly to realize the rising of the scissor-type lifting assembly. The lower end of the scissor-type lifting assembly is installed on the bottom frame assembly of the lifting mechanism, and the upper end is connected to the load-bearing beam assembly. A top plate assembly is installed above the load-bearing beam assembly.

[0024] The outer side of the frame body of the bottom frame assembly of the lifting mechanism is also provided with a lifting ring for lifting the entire equipment.

[0025] When the longitudinal transmission screw rotates forward and backward, the push plate can be pushed to move left and right; when the push plate moves left and right, the scissor-type lifting assembly synchronously performs a scissor-type action through a hinge connection, and the roller in the lifting assembly rolls and moves in the groove of the bearing beam assembly to realize the up and down lifting of the bearing beam assembly.

[0026] The walking wheel group is composed of a mounting plate, a walking servo motor, a steering servo motor, a steering driving gear, a pulley, a steering driven wheel, a bearing seat assembly, a supporting member, a walking transmission gear group, a walking small bevel gear, a walking large bevel gear, and a walking wheel. The mounting plate is used to achieve connection with the lifting assembly frame. A supporting member is arranged below the mounting plate, and a walking servo motor is arranged in the middle position of the supporting member. The output shaft of the walking servo motor is connected to the walking transmission gear group installed in the supporting member. A steering servo motor is installed on the side of the supporting member, and the output shaft of the steering servo motor is connected to the steering driving gear. The steering driving gear realizes the steering of the walking wheel through the pulley, the steering driven wheel and the bearing seat assembly, and the walking transmission gear group realizes the rotation of the walking wheel through the cooperation of the walking small bevel gear and the walking large bevel gear.

[0027] The steering driven wheel is installed on the bearing seat assembly and is used for steering action under the drive of the pulley; the bearing seat assembly contains bearings for installing the steering driven wheel and supporting the wheel system.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. Filling the gap in the industry

[0030] A special GIS indoor installation lifting platform is designed for indoor installation of GIS, which meets the requirements of large volume and heavy weight of GIS, fills the gap in the industry, and makes the indoor installation of GIS use more specialized tools, without the need to build a temporary platform, thus reducing costs and reducing the labor intensity of personnel;

[0031] 2. Easy to use

[0032] The platform can automatically rise and fall, move automatically, can be hoisted by a crane and towed by a car to any substation for construction, and can be operated and controlled by a wireless remote control, which is practical and convenient.

[0033] 3. This structural design has high safety

[0034] The up and down lifting action is driven by a servo motor, and the four lead screws are synchronously driven to ensure consistent and smooth lifting action. The reduction box rod has a transmission self-locking function to ensure that the platform will not rise or fall automatically in the event of a power outage, fully ensuring the safety of the equipment;

[0035] 4. With intelligent monitoring function

[0036] A pressure sensor is installed at the bottom of the load-bearing platform and an inclination sensor is installed on the side to ensure early warning of overweight and automatic height compensation of the platform tilt. Monitoring data is displayed in a timely manner through a remote control device, further improving the safety of equipment use.

[0037] 5. More in line with actual needs

[0038] 1) Add a transition plate to the front end of the platform to ensure seamless transition between the platform and the indoor installation foundation plane;

[0039] 2) Add tilt adjustment function. When GIS is hoisted on the platform and the transport wheels are installed, the height of the platform end can be slightly increased through the wireless remote control device, so that the platform has a certain inclination toward the entrance, which is helpful for assisting the transportation of GIS into the room at the beginning and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0042] Figure 2This is a schematic diagram of the lifting assembly structure of an embodiment of the present application;

[0043] Figure 3 This is a schematic diagram of the structure of the travel wheel of an embodiment of the present application;

[0044] Figure 4 This is a schematic diagram of the working status structure of an embodiment of the present application. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0046] The terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0047] like Figure 1-Figure 4 As shown, the embodiment of the present application provides an automated lifting platform for indoor installation of GIS, including a lifting assembly 1, a battery pack 2, a control system 3, a hydraulic pump station 4, a walking wheel group 5, a hydraulic support leg 6, a top plate assembly 8, a tilt sensor 9, a pressure sensor 10 and a remote control device 11.

[0048] The lifting assembly 1 is equipped with a battery pack 2, a control system 3 and a hydraulic pump station 4;

[0049] A travel wheel set 5 for carrying the entire device for travel and a hydraulic support leg 6 for lifting the entire lift assembly 1 are installed below the lift assembly 1;

[0050] A top plate assembly 8 for carrying a GIS unit assembly 12 is installed above the lifting assembly 1;

[0051] The top plate assembly 8 is also equipped with an inclination sensor 9 for detecting the inclination of the top plate assembly 8 and a pressure sensor 10 for detecting the pressure of the top plate assembly 8;

[0052] The control system 3 is connected to the battery pack 2 , the hydraulic pump station 4 , the inclination sensor 9 , the pressure sensor 10 and the remote control device 11 to realize automatic lifting of the lifting assembly 1 .

[0053] The end of the top plate assembly 8 is also provided with a guide plate assembly 7 for realizing a transition connection between the bearing surface of the top plate assembly 8 and the installation surface of the building body.

[0054] The main function of the lifting component 1 is to complete the lifting of the equipment; the battery pack 2 uses a lithium power source to provide power for the lifting servo motor 102, the motor in the hydraulic pump station 4, the servo motor in the walking wheel group 5, the control system and various sensors; the control system 3 is a control integrated unit for the entire equipment, including controlling the lifting motor 102, the hydraulic pump station 4, data feedback and processing of the sensor, etc.; the hydraulic pump station 4 provides lifting power for the hydraulic support leg 6; the walking wheel group 5 is used to carry the walking and steering of the entire equipment, and under the control of personnel, it can move to the appropriate position according to the on-site construction scene; the hydraulic support leg 6 is used for the overall lifting of the equipment before work to prevent the equipment from tilting due to uneven ground. When in use, a pad must be added under the support leg to increase the force-bearing area; the guide plate assembly 7 is used for the top bearing surface of the equipment and the installation surface of the building The transition connection reduces the obstruction caused by the pits on the ground when the equipment enters the room; the top plate assembly 8 is used to install the load-bearing equipment; the inclination sensor 9 is used to monitor the horizontal inclination angle of the top plate assembly 8 when it is working, and the monitoring data can be synchronously transmitted to the control system 3, and then the control system 3 controls the lifting action of the hydraulic support leg 6 to ensure that the top plate assembly 8 is horizontal and not tilted; the pressure sensor 10 is used to monitor the weight of the equipment carried by the top plate assembly 8, and timely feeds back the data to the control system 3, and issues an early warning when it is overweight; the remote control device 11 is used to control the use and operation of the equipment, including the movement and lifting of the equipment; the display panel of the remote control device 11 can display the walking data, lifting data, plane levelness data and load weight data, so that the operator can timely control the working status of the equipment; the GIS unit assembly 12 is a product to be installed.

[0055] like Figure 2As shown, the lifting assembly 1 includes a lifting mechanism bottom frame assembly 101, a lifting ring 1011, a lifting servo motor 102, a reduction gear box 103, a transverse transmission screw 104, a worm gear box 105, a longitudinal transmission screw 106, a screw nut 107, a movable push plate 108, a scissor-type lifting assembly 109, and a load-bearing beam assembly 110. The lifting mechanism bottom frame assembly 101 is equipped with a lifting servo motor 102 and a reduction gear box 103 matched with the lifting servo motor 102. The lifting mechanism bottom frame assembly 101 is equipped with a transverse transmission screw 104 in the frame body, and worm gear boxes 105 are installed at both ends of the transverse transmission screw 104. The reduction gear box 1 03's power output shaft is connected to a worm gear box 105, and the worm gear box 105 is also connected to two longitudinal transmission screws 106, one end of the longitudinal transmission screw 106 is connected to the worm gear box 105, and the other end is connected to a movable push plate 108 through a screw nut 107, and scissor-type lifting assemblies 109 are installed at both ends of the bottom frame assembly 101 of the lifting mechanism, and the movable push plate 108 pushes the scissor-type lifting assembly 109 to realize the rising of the scissor-type lifting assembly 109, and the lower end of the scissor-type lifting assembly 109 is installed on the bottom frame assembly 101 of the lifting mechanism, and the upper end is connected to the load-bearing beam assembly 110, and the top plate assembly 8 is installed above the load-bearing beam assembly 110.

[0056] The outer side of the frame of the bottom frame assembly 101 of the lifting mechanism is also provided with a lifting ring 1011 for lifting the entire equipment.

[0057] The bottom frame assembly 101 of the lifting mechanism is the bottom basic component of the automatic lifting platform. It is made of steel parts welded as a whole and has good load-bearing capacity. It is used for the installation and load-bearing body of various components; the lifting ring 1011 is used for the overall lifting of the equipment; the lifting servo motor 102 provides power for the lifting of the equipment; the reduction gear box 103 is used to change the transmission ratio of the lifting servo motor 102 and provide lifting power output. Its internal gear set has a reverse rotation force self-locking function. When the lifting servo motor 102 is not in motion, the gear set does not rotate. In the event of a power outage, the equipment will not automatically lift and lower, ensuring safe operation; the transverse transmission screw 104 is used to transmit power and is connected to the worm shaft in the worm gear box 105 through a clutch. The worm gear box 105 contains worm gear transmission gears and lubricating oil, which are used to change the direction of the transmission power; the longitudinal transmission screw 106 is used to transmit the power transmitted by the transverse transmission shaft 104, and is connected through two worm gear boxes 105 to output power in four directions; the screw nut 107 is installed on the movable push plate 108, and is matched with the longitudinal transmission screw 106. When the longitudinal transmission screw 106 rotates forwards and backwards, it can push the push plate 108 to move left and right; when the push plate 108 moves left and right, the scissor-type lifting assembly 109 synchronously makes a scissor-like movement through the hinge connection, and the roller in the lifting assembly 109 rolls and moves in the groove of the load-bearing beam assembly 110, so that the load-bearing beam assembly 110 can be lifted up and down.

[0058] like Figure 3 As shown, the walking wheel group 5 is composed of a mounting plate 501, a walking servo motor 502, a steering servo motor 503, a steering driving gear 504, a pulley 505, a steering driven wheel 506, a bearing seat assembly 507, a supporting member 508, a walking transmission gear group 509, a walking small bevel gear 510, a walking large bevel gear 511, and a walking wheel 512. The mounting plate 501 is used to achieve connection with the frame of the lifting assembly 1. A supporting member 508 is arranged below the mounting plate 501, and a walking servo motor 50 is arranged in the middle of the supporting member 508. 2. The output shaft of the travel servo motor 502 is connected to the travel transmission gear set 509 installed in the support member 508. The side of the support member 508 is installed with a steering servo motor 503. The output shaft of the steering servo motor 503 is connected to the steering driving gear 504. The steering driving gear 504 realizes the steering of the travel wheel 512 through the pulley 505, the steering driven wheel 506 and the bearing seat assembly 507. The travel transmission gear set 509 realizes the rotation of the travel wheel 512 through the cooperation of the small travel bevel gear 510 and the large travel bevel gear 511.

[0059] The steering driven wheel 506 is installed on the bearing seat assembly 507 and is used for steering action under the drive of the pulley 505; the bearing seat assembly 507 contains bearings for installing the steering driven wheel 506 and supporting the wheel system.

[0060] The mounting plate 501 is used for connecting and installing the walking wheel group with the bottom frame assembly 101 of the lifting mechanism; the walking servo motor 502 is used for walking power output, and is connected to the control system 3 and the remote control device 11, and can be remotely controlled; the steering servo motor 503 is used for steering power output; the steering driving gear 504 and the pulley 505 are used for steering power transmission; the steering driven wheel 506 is installed on the bearing seat assembly 507, and is used for steering action under the drive of the pulley 505; the bearing seat assembly 507 contains bearings for the installation of the steering driven wheel 506 and the support of the wheel system; the supporting member 508 is used for supporting the walking wheel group servo motor and each transmission gear group; the walking transmission gear group 509, the walking small bevel gear 510, and the walking large bevel gear 511 are used to transmit the walking power of the walking servo motor 502 to the walking wheel 512, driving the walking wheel 512 to move forward or backward.

[0061] Working principle:

[0062] like Figure 4 As shown, firstly, the remote control device 11 is operated to move the walking wheel group 5, and then stops after moving to a suitable position; the remote control device 11 is operated to start the motor of the hydraulic pump station 4, and the hydraulic support leg 6 is raised to lift the whole equipment upward, and then stops after the hydraulic support leg 6 forms the whole support of the equipment.

[0063] The remote control device 11 is operated and the lifting servo motor 102 is started. Through the joint action of the reduction gear box 103, the transverse transmission shaft 104, the worm gear box 105, the longitudinal transmission screw 106, the screw nut 107, the movable push plate 108, the scissor-type lifting assembly 109 and other lifting components, the top plate assembly 8 is raised. After visually observing that the upper plane of the top plate assembly 8 and the indoor ground plane are basically at the same level, the guide plate assembly 7 is opened to connect it seamlessly with the ground.

[0064] Use a crane to lift the GIS unit assembly 12 to the upper plane of the top plate assembly 8. The inclination sensor 9 and the pressure sensor 10 monitor the working status online and feed back the data to the control system 3. When overweight occurs, a real-time alarm is issued. When the bearing surface is tilted, the inclination sensor 9 controls the hydraulic support leg 6 through the control system 3 to automatically adjust the working surface to a horizontal state.

[0065] When the transport wheels are installed at the bottom of the GIS unit assembly 12 and ready to enter the room, the remote control device 11 is operated, and the two hydraulic legs 6 at the right end are slightly raised synchronously, so that the top panel has a certain inclination angle toward the entrance, so that the equipment can be moved to the left into the room with a little effort.

[0066] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automated lifting platform for indoor installation of GIS, characterized in that: The invention comprises a lifting assembly (1), a battery pack (2), a control system (3), a hydraulic pump station (4), a walking wheel assembly (5), a hydraulic support leg (6), a top plate assembly (8), a tilt sensor (9), a pressure sensor (10) and a remote control device (11). A battery pack (2), a control system (3) and a hydraulic pump station (4) are installed on the lifting assembly (1); A walking wheel set (5) for carrying the entire device for walking and a hydraulic support leg (6) for lifting the lifting assembly (1) as a whole are installed below the lifting assembly (1); A top plate assembly (8) for carrying a GIS unit assembly (12) is installed above the lifting assembly (1); The top plate assembly (8) is also equipped with an inclination sensor (9) for detecting the inclination of the top plate assembly (8) and a pressure sensor (10) for detecting the pressure of the top plate assembly (8); The control system (3) is connected to the battery pack (2), the hydraulic pump station (4), the inclination sensor (9), the pressure sensor (10) and the remote control device (11) to realize automatic lifting of the lifting component (1).

2. The automatic lifting platform for indoor installation of GIS according to claim 1 is characterized in that: The end of the top plate assembly (8) is also equipped with a guide plate assembly (7) for achieving a transition connection between the bearing surface of the top plate assembly (8) and the installation surface of the building body.

3. The automatic lifting platform for indoor installation of GIS according to claim 1 is characterized in that: The lifting assembly (1) comprises a lifting mechanism bottom frame assembly (101), a lifting ring (1011), a lifting servo motor (102), a reduction gear box (103), a transverse transmission screw (104), a worm gear box (105), a longitudinal transmission screw (106), a screw nut (107), a movable push plate (108), a scissor-type lifting assembly (109), and a bearing beam assembly (110). The lifting mechanism bottom frame assembly (101) is mounted with a lifting servo motor (102) and a reduction gear box (103) matched with the lifting servo motor (102). The lifting mechanism bottom frame assembly (101) is mounted with a transverse transmission screw (104) in the frame body. The worm gear boxes (105) are mounted at both ends of the transverse transmission screw (104). The reduction gear box (110) The power output shaft of the lifting mechanism (103) is connected to a worm gear box (105), and the worm gear box (105) is also connected to two longitudinal transmission screws (106), one end of the longitudinal transmission screw (106) is connected to the worm gear box (105), and the other end is connected to a movable push plate (108) through a screw nut (107), and scissor-type lifting assemblies (109) are installed at both ends of the bottom frame assembly (101) of the lifting mechanism, and the movable push plate (108) pushes the scissor-type lifting assembly (109) to achieve the lifting of the scissor-type lifting assembly (109), and the lower end of the scissor-type lifting assembly (109) is installed on the bottom frame assembly (101) of the lifting mechanism, and the upper end is connected to a load-bearing beam assembly (110), and a top plate assembly (8) is installed above the load-bearing beam assembly (110).

4. The automatic lifting platform for indoor installation of GIS according to claim 3 is characterized in that: The outer side of the frame of the bottom frame assembly (101) of the lifting mechanism is also provided with a lifting ring (1011) for lifting the entire device.

5. The automatic lifting platform for indoor installation of GIS according to claim 4 is characterized in that: When the longitudinal transmission screw rod (106) rotates forwards and backwards, it can push the push plate (108) to move left and right; when the push plate (108) moves left and right, the scissor-type lifting assembly (109) synchronously performs a scissor-type action through a hinge connection, and the roller in the lifting assembly (109) rolls and moves in the groove of the bearing beam assembly (110), thereby realizing the up and down lifting of the bearing beam assembly (110).

6. The automatic lifting platform for indoor installation of GIS according to claim 1 is characterized in that: The walking wheel assembly (5) is composed of a mounting plate (501), a walking servo motor (502), a steering servo motor (503), a steering driving gear (504), a pulley (505), a steering driven wheel (506), a bearing seat assembly (507), a supporting member (508), a walking transmission gear assembly (509), a walking small bevel gear (510), a walking large bevel gear (511), and a walking wheel (512). The mounting plate (501) is used to achieve connection with the frame of the lifting assembly (1). A supporting member (508) is provided below the mounting plate (501), and a walking servo motor (503) is provided in the middle of the supporting member (508). 02), the output shaft of the travel servo motor (502) is connected to a travel transmission gear set (509) installed in a support member (508), a steering servo motor (503) is installed on the side of the support member (508), the output shaft of the steering servo motor (503) is connected to a steering driving gear (504), the steering driving gear (504) realizes the steering of the travel wheel (512) through a pulley (505), a steering driven wheel (506) and a bearing seat assembly (507), and the travel transmission gear set (509) realizes the rotation of the travel wheel (512) through the cooperation of a small travel bevel gear (510) and a large travel bevel gear (511).

7. The automatic lifting platform for indoor installation of GIS according to claim 6 is characterized in that: The steering driven wheel (506) is mounted on the bearing seat assembly (507) and is used for steering action when driven by the pulley (505); the bearing seat assembly (507) contains a bearing for mounting the steering driven wheel (506) and supporting the wheel train.

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