Auxiliary lifting device for power construction

Abstract

The utility model discloses an auxiliary lifting device for electric power construction, belongs to the technical field of auxiliary equipment for electric power construction, and aims to solve the problem that the working efficiency of the electric power construction is very influenced because the lifting device used in the existing electric power construction is of a single frame body structure and can only meet the construction requirement of a single working surface after being subjected to one-time traction positioning. The auxiliary lifting device comprises a first lifting unit, a second lifting unit and a rotating motor, one end of the second lifting unit is erected at one end of the first lifting unit, the rotating motor is inversely arranged on the second lifting unit, and a shell part of the rotating motor is mounted on the first lifting unit through a motor mounting frame; a power output shaft of the rotating motor is inserted into the second lifting unit and fixedly connected with the second lifting unit, and the second lifting unit is rotationally connected with the first lifting unit through the rotating motor. The lifting device is mainly used for assisting workers in high-altitude construction in the electric power construction process.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for power construction, and specifically relates to an auxiliary lifting device for power construction. Background Technology

[0002] In power plant construction, work often needs to be carried out at heights, including the installation of outdoor large transformer casings, the installation of suspended transformers, and the installation of frames on power station columns. Most high-altitude operations require work from multiple directions to ensure the stability of the installation. Taking the installation of outdoor large transformer casings as an example, the landing height of a large transformer is generally 3.5 to 4.5 meters, and the side extension length is generally 2.5 to 3 meters. To install the casing on all four sides, workers need to frequently change their working positions to ensure accurate construction. Current power construction... The lifting devices used on site are usually single-frame structures that rely on a tractor or other traction mechanism as the driving component to pull the lifting device to the target work area. Then, the working height of the lifting device is adjusted to move the workers to the work area for construction. When a single-frame lifting device is working, the working height can only be adjusted on one working surface at a time. If it is necessary to change the working surface, the lifting frame needs to be re-pulled and repositioned. Each traction and repositioning consumes a lot of working time and greatly affects work efficiency. Therefore, developing an auxiliary lifting device that can meet the construction requirements of multiple working surfaces with a single traction and repositioning is very much in line with practical needs. Utility Model Content

[0003] In order to solve the problem that the existing lifting devices used in power construction are all single-frame structures, which can only meet the construction requirements of a single working surface after one traction and positioning, thus greatly affecting the efficiency of power construction work, this utility model provides an auxiliary lifting device for power construction.

[0004] An auxiliary lifting device for power construction includes a first lifting unit, a second lifting unit, and a rotating motor. One end of the second lifting unit is mounted on one end of the first lifting unit. The rotating motor is inverted on the second lifting unit, and the housing of the rotating motor is mounted on the first lifting unit via a motor mounting bracket. The power output shaft of the rotating motor is inserted into the second lifting unit and fixedly connected to the second lifting unit. The second lifting unit is rotatably connected to the first lifting unit via the rotating motor.

[0005] Furthermore, the rotation angle between the No. 1 lifting unit and the No. 2 lifting unit ranges from 0° to 270°;

[0006] Furthermore, the No. 1 lifting unit includes a No. 1 top plate, a No. 1 bottom plate, an extension plate, a No. 1 support unit, and multiple No. 1 universal wheels. The No. 1 top plate and the No. 1 bottom plate are arranged parallel to each other vertically. The No. 1 support unit is arranged vertically between the No. 1 top plate and the No. 1 bottom plate, with the top of the No. 1 support unit fixedly connected to the bottom of the No. 1 top plate and the bottom of the No. 1 bottom plate fixedly connected to the top of the No. 1 bottom plate. One end of the No. 1 bottom plate is a traction end for connection with the traction mechanism, and the other end of the No. 1 bottom plate is a rotating end. The extension plate is arranged on one side of the other end of the No. 1 bottom plate and is integrally formed with the No. 1 bottom plate to form an L-shaped plate structure. One of the multiple No. 1 universal wheels is installed at the bottom of the extension plate. The remaining universal wheels are installed at equal intervals along the length extension direction of the No. 1 bottom plate. One end of the No. 2 lifting unit is placed on the extension plate. The housing of the rotating motor is installed on the No. 1 bottom plate through a motor mounting bracket. The power output shaft of the rotating motor is located directly above the extension plate.

[0007] Furthermore, the No. 1 support unit includes a No. 1 hydraulic push rod assembly and two No. 1 support assemblies. The two No. 1 support assemblies are arranged opposite each other between the No. 1 top plate and the No. 1 bottom plate along the center line of the width direction of the No. 1 top plate. The top of each No. 1 support assembly is fixedly connected to the bottom of the No. 1 top plate, and the bottom of each No. 1 support assembly is fixedly connected to the top of the No. 1 bottom plate. The piston rod end of the No. 1 hydraulic push rod assembly is connected to the lower part of the two No. 1 support assemblies. The No. 1 hydraulic push rod assembly serves as a power source to drive the two No. 1 support assemblies to perform synchronous extension and retraction actions.

[0008] The No. 1 support component includes a No. 1 upper slide rail, a No. 1 X-extension structure, and a No. 1 lower slide rail. The No. 1 upper slide rail is fixed to the bottom of the No. 1 top plate along the length of the No. 1 top plate, and the No. 1 lower slide rail is fixed to the top of the No. 1 bottom plate along the length of the No. 1 bottom plate. The No. 1 upper slide rail and the No. 1 lower slide rail are arranged parallel to each other vertically. The No. 1 X-extension structure is arranged vertically between the No. 1 upper slide rail and the No. 1 lower slide rail. One of the top legs of the No. 1 X-extension structure is slidably connected to the No. 1 upper slide rail through a top sliding block. The other top leg of the No. 1 X-extension structure is fixedly connected to the No. 1 upper slide rail through a fixing block. One of the bottom legs of the No. 1 X-extension structure is slidably connected to the No. 1 lower slide rail through a bottom sliding block. The other bottom leg of the No. 1 X-extension structure is fixedly connected to the No. 1 lower slide rail through a fixing block.

[0009] The No. 1 hydraulic push rod assembly includes a No. 1 hydraulic push rod, a No. 1 mounting base, and a No. 1 push plate. The No. 1 hydraulic push rod is fixed to the top of the No. 1 base plate via the No. 1 mounting base, and the piston rod end of the No. 1 hydraulic push rod is positioned facing the two No. 1 support assemblies. The No. 1 push plate is arranged between the piston rod end of the No. 1 hydraulic push rod and the two No. 1 support assemblies. One end of the No. 1 push plate is fixedly connected to the piston rod end of the No. 1 hydraulic push rod, and the other end of the No. 1 push plate is fixedly connected to the adjacent bottom sliding block in each No. 1 support assembly.

[0010] Furthermore, the second lifting unit includes a second top plate, a second bottom plate, a second support unit, and multiple second omnidirectional wheels. The second top plate and the second bottom plate are arranged parallel to each other vertically. The second support unit is arranged vertically between the second top plate and the second bottom plate, and the top of the second support unit is fixedly connected to the bottom of the second top plate. The bottom of the second support unit is fixedly connected to the top of the second bottom plate. One end of the second bottom plate is a traction end for connecting to the traction mechanism, and the other end of the second bottom plate is a rotating end. The other end of the second bottom plate is placed on the top of the extension plate. The power output shaft of the rotating motor is inserted into the second bottom plate and fixedly connected to the second bottom plate. Multiple height compensation blocks are arranged equidistantly along the length extension direction of the second bottom plate, and each height compensation block is fixedly connected to the second bottom plate. Each second omnidirectional wheel is installed at the bottom of a corresponding height compensation block.

[0011] Furthermore, the second support unit includes a second hydraulic push rod assembly and two second support assemblies. The two second support assemblies are arranged opposite each other between the second top plate and the second bottom plate along the center line of the width direction of the second bottom plate. The top of each second support assembly is fixedly connected to the bottom of the second top plate, and the bottom of each second support assembly is fixedly connected to the top of the second bottom plate. The second hydraulic push rod assembly is fixed to the top of the second bottom plate, and the piston rod end of the second hydraulic push rod assembly is connected to the lower part of the two second support assemblies. The second hydraulic push rod assembly serves as a power source to drive the two second support assemblies to perform synchronous extension and retraction actions.

[0012] The second support component includes a second upper slide rail, a second X-extension structure, and a second lower slide rail. The second upper slide rail is fixed to the bottom of the second top plate along the length of the second top plate, and the second upper slide rail is fixed to the top of the second bottom plate along the length of the second bottom plate. The second upper slide rail and the second lower slide rail are arranged parallel to each other vertically. The second X-extension structure is arranged vertically between the second upper slide rail and the second lower slide rail. One support leg at the top of the second X-extension structure is slidably connected to the second upper slide rail via a top sliding block. The other support leg at the top of the second X-extension structure is fixedly connected to the second upper slide rail via a fixing block. One support leg at the bottom of the second X-extension structure is slidably connected to the second lower slide rail via a bottom sliding block. The other support leg at the bottom of the second X-extension structure is slidably connected to the second lower slide rail via a fixing block.

[0013] The second hydraulic push rod assembly includes a second hydraulic push rod, a second mounting base, and a second push plate. The second hydraulic push rod is fixed to the top of the second base plate via the second mounting base, and the piston rod end of the second hydraulic push rod is set towards the two second support assemblies. The second push plate is arranged between the piston rod end of the second hydraulic push rod and the two second support assemblies. One end of the second push plate is fixedly connected to the piston rod end of the second hydraulic push rod, and the other end of the second push plate is fixedly connected to the adjacent bottom sliding block in each second support assembly.

[0014] Furthermore, the top of the No. 1 roof slab is provided with a No. 1 long side guardrail and two No. 1 short side guardrails. The No. 1 long side guardrail is installed on the long side of the top of the No. 1 roof slab away from the construction area. The two No. 1 short side guardrails are respectively set at both ends of the top of the No. 1 roof slab. The No. 1 short side guardrail set near the traction end of the No. 1 roof slab is fixedly connected to the No. 1 roof slab. The No. 1 short side guardrail set near the rotation end of the No. 1 roof slab is rotatably connected to the No. 1 long side guardrail and is locked to the No. 1 roof slab by a pull bolt. The No. 1 opening and closing door is provided at the center of the No. 1 long side guardrail. One side of the No. 1 opening and closing door is rotatably connected to the No. 1 long side guardrail, and the other side of the No. 1 opening and closing door is locked to the No. 1 long side guardrail by a pull bolt.

[0015] Furthermore, the top of the No. 2 roof slab is provided with a No. 2 long side guardrail and a No. 2 short side guardrail. The No. 2 long side guardrail is installed on the long side of the top of the No. 2 roof slab away from the construction area. The No. 2 short side guardrail is fixedly installed on the top of the traction end of the No. 2 roof slab. The No. 2 opening and closing door is provided at the center of the No. 2 long side guardrail. One side of the No. 2 opening and closing door is rotatably connected to the No. 2 long side guardrail. The other side of the No. 2 opening and closing door is locked to the No. 2 long side guardrail by a pull bolt. The No. 2 opening and closing door is set in correspondence with the No. 1 opening and closing door.

[0016] The beneficial effects of this application compared to the prior art are:

[0017] 1. This application provides an auxiliary lifting device for power construction, which for the first time adopts a double lifting frame structure, unlike the traditional single lifting frame lifting device. In this application, the two lifting frames are rotatably connected, and a rotating motor is used as a driving device to drive the second lifting frame to rotate relative to the first lifting frame, thereby adjusting the working angle between the two lifting frames. During the power construction process, after the auxiliary lifting device is traction-positioned once, the workers can switch between the two working areas, which greatly increases the working range of the workers after the lifting device is traction-positioned once, and at the same time reduces the debugging time of the lifting device during operation, thereby improving the work efficiency of construction.

[0018] 2. The auxiliary lifting device for power construction provided in this application has a conversion angle between two lifting frames of 0°~270° (actual working angle of 180°~270°), which can meet the angle requirements between various adjacent double working surfaces during electric field construction, improve the flexibility of the lifting device, and each lifting frame has an independent lifting drive source, which can carry multiple workers at the same time to complete construction operations at different heights on adjacent surfaces according to work needs, greatly improving the work efficiency of on-site construction.

[0019] 3. The auxiliary lifting device for power construction provided in this application has a fixed lifting frame (No. 1) and a rotating lifting frame (No. 2) during operation. The No. 2 lifting frame is used to adapt to the work surface to be carried out. When the angle between the No. 1 and No. 2 lifting frames is within the working angle range, there is always an area where the No. 1 and No. 2 lifting frames overlap vertically. That is, when the working height between the two lifting frames is within the safe longitudinal displacement range, the workers on the No. 1 lifting frame can move directly to the No. 2 lifting frame, making it faster and more convenient for workers to transfer work surfaces. Attached Figure Description

[0020] Figure 1 This is a front view schematic diagram of the auxiliary lifting device described in this application (with guardrail installed);

[0021] Figure 2 This is a front view schematic diagram of the auxiliary lifting device described in this application (without guardrails installed).

[0022] Figure 3 This is a front view schematic diagram of the No. 1 lifting unit in the auxiliary lifting device described in this application;

[0023] Figure 4 This is a front view schematic diagram of the second lifting unit in the auxiliary lifting device described in this application:

[0024] Figure 5 This is a left-side view of the auxiliary lifting device described in this application;

[0025] Figure 6 This is a schematic diagram showing the state of the auxiliary lifting device described in this application when the first lifting unit and the second lifting unit are rotated 180°.

[0026] Figure 7 This is a schematic diagram showing the state of the auxiliary lifting device described in this application when the first lifting unit and the second lifting unit are rotated 270°.

[0027] Figure 8 This is a side view of the first lifting unit in the auxiliary lifting device described in this application;

[0028] Figure 9 This is a side view of the second lifting unit in the auxiliary lifting device described in this application;

[0029] Figure 10 This is a schematic diagram showing the state of the No. 1 and No. 2 lifting units when they rotate from 0° to 270° in the staggered arrangement design of the No. 1 and No. 2 roof slabs in Specific Implementation Method 1 (a in the diagram is when the No. 1 and No. 2 lifting units are in the initial 0° state, b is when the No. 1 and No. 2 lifting units are in the 180° deflection state, c is when the No. 1 and No. 2 lifting units are in the 180°~270° deflection state, and d is when the No. 1 and No. 2 lifting units are in the 270° deflection state).

[0030] Figure 11 This is a schematic diagram illustrating the state of lifting units 1 and 2 as they rotate from 0° to 270° when the No. 1 and No. 2 roof slabs are arranged on the same floor in Specific Implementation Method 1. (In the diagram, A represents the initial 0° state of lifting units 1 and 2, B represents the 180° deflection state of lifting units 1 and 2, C represents the 180°~270° deflection state of lifting units 1 and 2, and D represents the 270° deflection state of lifting units 1 and 2).

[0031] Figure 12 This is a side view of the auxiliary lifting device described in this application (using a long hinge axis as the hinge node of two X-extension structures simultaneously).

[0032] Figure 13 This is a side view of the auxiliary lifting device described in this application (the hydraulic push rod is arranged between the two lowest long hinge shafts).

[0033] The diagram shows: 1. Lifting Unit 1; 2. Lifting Unit 2; 3. Top Plate 1; 4. Upper Slide Rail 1; 5. X-Extension Structure 1; 6. Lower Slide Rail 1; 7. Base Plate 1; 8. Hydraulic Push Rod Assembly 1; 9. Extension Plate; 10. Caster Wheel 1; 11. Top Plate 2; 12. Upper Slide Rail 2; 13. X-Extension Structure 2; 14. Lower Slide Rail 2; 15. Base Plate 2; 16. Hydraulic Push Rod Assembly 2; 17. Caster Wheel 2; 18. Long Side Guardrail 1; 18-1 Opening Door 1; 19. Short Side Guardrail 1; 20. Long Side Guardrail 2; 20-1 Opening Door 2; 21. Short Side Guardrail 2; 22. Rotating Motor; and 23. Traction Ring. Detailed Implementation

[0034] Specific implementation method one: Combining Figures 1 to 9This embodiment describes an auxiliary lifting device for power construction. The auxiliary lifting device includes a first lifting unit 1, a second lifting unit 2, and a rotating motor 22. One end of the second lifting unit 2 is mounted on one end of the first lifting unit 1. The rotating motor 22 is inverted on the second lifting unit 2, and the housing of the rotating motor 22 is mounted on the first lifting unit 1 through a motor mounting bracket. The power output shaft of the rotating motor 22 is inserted into the second lifting unit 2 and fixedly connected to the second lifting unit 2. The second lifting unit 2 is rotatably connected to the first lifting unit 1 through the rotating motor 22.

[0035] The rotation angle between lifting unit 1 and lifting unit 2 ranges from 0° to 270°.

[0036] The No. 1 lifting unit 1 includes a No. 1 top plate 3, a No. 1 bottom plate 7, an extension plate 9, a No. 1 support unit, and multiple No. 1 universal wheels 10. The No. 1 top plate 3 and the No. 1 bottom plate 7 are arranged vertically and parallel to each other. The No. 1 support unit is arranged vertically between the No. 1 top plate 3 and the No. 1 bottom plate 7, with its top end fixedly connected to the bottom of the No. 1 top plate 3 and its bottom end fixedly connected to the top of the No. 1 bottom plate 7. One end of the No. 1 bottom plate 7 is a traction end for connection to a traction mechanism, and the other end of the No. 1 bottom plate 7 is a rotating end. The extension plate 9 is provided with... An L-shaped plate structure is formed integrally with the first base plate 7 on one side of the other end of the first base plate 7. One of the multiple first universal wheels 10 is installed at the bottom of the extension plate 9. The remaining universal wheels 10 are installed at equal intervals along the length extension direction of the first base plate 7. One end of the second lifting unit 2 is placed on the extension plate 9. The housing of the rotating motor 22 is installed on the first base plate 7 through the motor mounting bracket. The power output shaft of the rotating motor 22 is located directly above the extension plate 9.

[0037] The first support unit includes a first hydraulic push rod assembly 8 and two first support assemblies. The two first support assemblies are arranged opposite each other between the first top plate 3 and the first bottom plate 7 along the center line of the width direction of the first top plate 3. The top of each first support assembly is fixedly connected to the bottom of the first top plate 3, and the bottom of each first support assembly is fixedly connected to the top of the first bottom plate 7. The first hydraulic push rod assembly 8 is fixed to the top of the first bottom plate 7, and the piston rod end of the first hydraulic push rod assembly 8 is connected to the lower part of the two first support assemblies. The first hydraulic push rod assembly 8 serves as a power source to drive the two first support assemblies to perform synchronous extension and retraction actions.

[0038] The first support component includes a first upper slide rail 4, a first X-extension structure 5, and a first lower slide rail 6. The first upper slide rail 4 is fixed to the bottom of the first top plate 3 along the length of the first top plate 3. The first lower slide rail 6 is fixed to the top of the first bottom plate 7 along the length of the first bottom plate 7. The first upper slide rail 4 and the first lower slide rail 6 are arranged vertically parallel to each other. The first X-extension structure 5 is arranged vertically between the first upper slide rail 4 and the first lower slide rail 6. One of the top legs of the first X-extension structure 5 is slidably connected to the first upper slide rail 4 through a top sliding block. The other top leg of the first X-extension structure 5 is fixedly connected to the first upper slide rail 4 through a fixing block. One of the bottom legs of the first X-extension structure 5 is slidably connected to the first lower slide rail 6 through a bottom sliding block. The other bottom leg of the first X-extension structure 5 is fixedly connected to the first lower slide rail 6 through a fixing block.

[0039] The first hydraulic push rod assembly 8 includes a first hydraulic push rod, a first mounting base, and a first push plate. The first hydraulic push rod is fixed to the top of the first base plate 7 through the first mounting base, and the piston rod end of the first hydraulic push rod is set towards the two first support assemblies. The first push plate is arranged between the piston rod end of the first hydraulic push rod and the two first support assemblies. One end of the first push plate is fixedly connected to the piston rod end of the first hydraulic push rod, and the other end of the first push plate is fixedly connected to the adjacent bottom sliding block in each first support assembly.

[0040] The second lifting unit 2 includes a second top plate 11, a second bottom plate 15, a second support unit, and multiple second universal wheels 17. The second top plate 11 and the second bottom plate 15 are arranged vertically and parallel to each other. The second support unit is arranged vertically between the second top plate 11 and the second bottom plate 15, with its top end fixedly connected to the bottom of the second top plate 11 and its bottom end fixedly connected to the top of the second bottom plate 15. One end of the second bottom plate 15 is a traction end for use with a tow wheel. The two base plates are connected to the guide mechanism. The other end of the second base plate 15 is the rotating end. The other end of the second base plate 15 is placed on the top of the extension plate 9. The power output shaft of the rotating motor 22 is inserted into the second base plate 15 and fixedly connected to the second base plate 15. Multiple height compensation blocks are arranged at equal intervals along the length extension direction of the second base plate 15 at the bottom of the second base plate 15. Each height compensation block is fixedly connected to the second base plate 15. Each second universal wheel 17 is installed at the bottom of a height compensation block.

[0041] The second support unit includes a second hydraulic push rod assembly 16 and two second support assemblies. The two second support assemblies are arranged opposite each other between the second top plate 11 and the second bottom plate 15 along the center line of the width direction of the second bottom plate 15. The top of each second support assembly is fixedly connected to the bottom of the second top plate 11, and the bottom of each second support assembly is fixedly connected to the top of the second bottom plate 15. The second hydraulic push rod assembly 16 is fixed to the top of the second bottom plate 15, and the piston rod end of the second hydraulic push rod assembly 16 is connected to the lower part of the two second support assemblies. The second hydraulic push rod assembly 16 serves as a power source to drive the two second support assemblies to perform synchronous extension and retraction actions.

[0042] The second support component includes a second upper slide rail 12, a second X-extension structure 13, and a second lower slide rail 14. The second upper slide rail 12 is fixed to the bottom of the second top plate 11 along the length of the second top plate 11, and the second upper slide rail 12 is fixed to the top of the second bottom plate 15 along the length of the second bottom plate 15. The second upper slide rail 12 and the second lower slide rail 14 are arranged parallel to each other vertically. The second X-extension structure 13 is arranged vertically between the second upper slide rail 12 and the second lower slide rail 14. One of the top legs of the second X-extension structure 13 is slidably connected to the second upper slide rail 12 through a top sliding block. The other top leg of the second X-extension structure 13 is fixedly connected to the second upper slide rail 12 through a fixing block. One of the bottom legs of the second X-extension structure 13 is slidably connected to the second lower slide rail 14 through a bottom sliding block. The other bottom leg of the second X-extension structure 13 is slidably connected to the second lower slide rail 14 through a fixing block.

[0043] The second hydraulic push rod assembly 16 includes a second hydraulic push rod, a second mounting base, and a second push plate. The second hydraulic push rod is fixed to the top of the second base plate 15 via the second mounting base, and the piston rod end of the second hydraulic push rod is positioned facing the two second support assemblies. The second push plate is arranged between the piston rod end of the second hydraulic push rod and the two second support assemblies. One end of the second push plate is fixedly connected to the piston rod end of the second hydraulic push rod, and the other end of the second push plate is fixedly connected to the adjacent bottom sliding block in each second support assembly.

[0044] This embodiment provides an auxiliary lifting device for power construction, which is mainly used in power system construction sites to adjust the working height of construction personnel. It can be used in various construction scenarios such as the installation of outdoor large transformer shells, the installation of power plant column frames, the installation of hoisted transformers, and the coating of outer insulating paint on supports. The structural feature of this application is that it adopts a dual lifting unit structure design for the first time. By changing the working angle between the two lifting units, the determination of two adjacent working surfaces in the construction area can be completed after the auxiliary lifting device performs one traction positioning. This makes it easier for workers to directly carry out construction work in the two working surface areas, greatly expanding the working range of the transmission lifting device, while also reducing the adjustment time of the lifting device during construction and improving the overall efficiency of on-site construction.

[0045] The dual lifting frames in this embodiment are identical in structure and drive method. Both use hydraulic push rods as a power source to drive the expansion and contraction of the X-extension structure, thereby adjusting the overall working height of the lifting unit. To ensure accurate synchronous lifting of the two support components within the same support unit, in addition to using the same power source, multiple long hinge shafts can be used to connect the X-extension structures in the two support components. Each long hinge shaft has its two ends inserted into an X-extension structure, serving as a hinge node for the X-extension structure. Figure 12 As shown, in this structure, the arrangement of the hydraulic push rod can also be reselected. The originally horizontally positioned hydraulic push rod can be placed between the two lowest long hinge shafts. The housing of the hydraulic push rod is hinged to a long hinge shaft in the lower layer via a tail-end hinge seat, and the piston rod end of the hydraulic push rod is hinged to a long hinge shaft in the upper layer via a head-end hinge seat. In this configuration, the bottom and top supports of each X-structure can be slidably connected to the corresponding slide rails, such as... Figure 13 As shown, the motor mounting bracket of the rotating motor 22 includes a connecting arm and a motor sleeve. The connecting arm is located on the outer side adjacent to the first support unit, and the bottom end of the connecting arm is fixedly connected to the top of the first base plate 7 by bolts. The motor sleeve is fixed to the upper part of the connecting arm and is fitted onto the motor housing of the rotating motor 22. It is worth noting that, in the arrangement, the second base plate 15 in the second lifting unit 2 is stacked on the extension plate 9, and the second top plate 11 is arranged below the first top plate 3. The two are staggered. The specific structural diagram is shown below. Figure 5As shown, this arrangement avoids interference and collisions between the second lifting unit 2 and the top plate when they rotate relative to the first lifting unit 1. A drawback of this design is that the working height of the second lifting unit 2 can only be adjusted within the working height range of the first lifting unit 1, greatly limiting the operational flexibility of the auxiliary lifting device. In actual operation, to ensure good independence between the first lifting unit 1 and the second lifting unit 2, the length of the first top plate 3 can be shortened to provide rotation space for the second top plate 11. Due to the extension plate 9, the actual rotation axis of the second lifting unit 2 is offset from that of the first top plate 3. Therefore, when the length of the first top plate 3 is shortened, it can be positioned on the same plane as the second top plate 11. In this configuration, there is no overlapping arrangement between the No. 1 top plate 3 and the No. 2 top plate 11, meaning that the two lifting units do not interfere with each other during height adjustment, thus improving their independent operation. However, this design also has a drawback: within the working angle range of 180° to 270° between the No. 2 lifting unit 2 and the No. 1 lifting unit 1, the No. 1 top plate 3 and the No. 2 top plate 11 are misaligned, and the width of the No. 2 top plate 11 can only be the same as the length between the No. 1 top plate 3 and the No. 1 bottom plate 7. This means that in the second arrangement, the actual working angles of the No. 1 lifting unit 1 and the No. 2 lifting unit 2 are only 0° or 270°, while in the first arrangement, since the No. 1 top plate 3 and the No. 2 top plate 11... By adopting a staggered layout, the No. 2 roof plate 11 can be freely positioned within a reasonable range. Therefore, by increasing the width of the No. 2 roof plate 11, the misalignment difference between the No. 2 lifting unit 2 and the No. 1 lifting unit 1 within the working angle range of 180° to 270° can be compensated. That is, a passageway for workers can be formed between the No. 1 roof plate 3 and the No. 2 roof plate 11. In this first arrangement, the actual working angles of the No. 1 lifting unit 1 and the No. 2 lifting unit 2 are only 0° or 180° to 270°. Both arrangements have their advantages. Some points can be adjusted by construction workers according to the specific construction conditions. For example, for the installation of the outer shell of a large outdoor transformer (by screwing bolts into prefabricated bolt holes to assemble and fix multiple parts of the shell), the working surfaces are generally concentrated on the adjacent sides of the transformer, and the two working surfaces are mostly in a 90° perpendicular state. In this case, the second arrangement is preferred. For example, when applying insulating paint to the outer layer of the support, the working surfaces of the support are generally between 90° and 180°, and all surfaces need to be coated. In this case, the first arrangement is preferred.

[0046] It is worth noting that, in order to increase the smoothness of rotation between the second lifting unit 2 and the first lifting unit 1, a necessary lubrication structure can be set between the second base plate 15 and the extension plate 9, such as adding an oil film layer, or adding a spherical support on the top of the extension plate 9. The spherical support can rotate freely in the mounting groove on the top of the extension plate 9. The sliding friction between the second base plate 15 and the extension plate 9 is optimized into rolling friction through the spherical support, thereby improving the smoothness of rotation between the second lifting unit 2 and the first lifting unit 1. A traction ring 23 is provided at the bottom of the connection between the extension plate 9 and the first base plate 7. The traction ring 23 is used to connect with the traction end of the tractor and move as a whole through the tractor's traction device.

[0047] Specific Implementation Method Two: Combining Figures 1 to 9 This embodiment differs from Specific Embodiment 1 in that the top of the No. 1 top plate 3 is provided with a No. 1 long side guardrail 18 and two No. 1 short side guardrails 19. The No. 1 long side guardrail 18 is installed on the long side of the top of the No. 1 top plate 3 away from the construction area. The two No. 1 short side guardrails 19 are respectively set at both ends of the top of the No. 1 top plate 3. The No. 1 short side guardrail 19 set near the traction end of the No. 1 top plate 3 is fixedly connected to the No. 1 top plate 3. The No. 1 short side guardrail 19 set near the rotation end of the No. 1 top plate 3 is rotatably connected to the No. 1 long side guardrail 18 and locked to the No. 1 top plate 3 by a pull bolt. The center of the No. 1 long side guardrail 18 is provided with a No. 1 opening and closing door 18-1. One side of the No. 1 opening and closing door 18-1 is rotatably connected to the No. 1 long side guardrail 18, and the other side of the No. 1 opening and closing door 18-1 is locked to the No. 1 long side guardrail 18 by a pull bolt.

[0048] The top of the second roof slab 11 is equipped with a second long-side guardrail 20 and a second short-side guardrail 21. The second long-side guardrail 20 is installed on the long side of the top of the second roof slab 11 away from the construction area. The second short-side guardrail 21 is fixedly installed on the top of the traction end of the second roof slab 11. A second opening and closing door 20-1 is provided at the center of the second long-side guardrail 20. One side of the second opening and closing door 20-1 is rotatably connected to the second long-side guardrail 20, and the other side of the second opening and closing door 20-1 is locked to the second long-side guardrail 20 by a pull bolt. The second opening and closing door 20-1 is correspondingly set with the first opening and closing door 18-1. Other components and connection methods are the same as in specific implementation method one.

[0049] In this embodiment, based on Specific Embodiment 1, guardrail structures are added to the working areas of the No. 1 roof panel 3 and the No. 2 roof panel 11. The No. 1 opening door 18-1 and the No. 2 opening door 20-1 are passageways for workers to access the working areas. They are bolted and locked, with a simple and reliable structure. Workers can easily open the doors with one hand. It is worth noting that two end guardrails are installed on the No. 1 roof panel 3, while only one end guardrail is installed on the No. 2 roof panel 11. This is based on the first arrangement in Specific Embodiment 1. In the first arrangement, the No. 1 roof panel 3 and the No. 2 roof panel 11 are staggered, on the one hand... To avoid interference between the two during rotation, and on the other hand, when the second lifting unit 2 and the first lifting unit 1 are in a 270° working state, the long side guardrail of the first top plate 3 can provide closed protection for the end of the second top plate 11. Therefore, the second top plate 11 only needs to be protected at one end. If the second arrangement of the first embodiment is adopted, the first top plate 3 and the second top plate 11 are designed on the same layer, and there will be no interference between them during rotation. Furthermore, when the second lifting unit 2 and the first lifting unit 1 are in a 270° working state, the long side guardrail of the first top plate 3 cannot provide closed protection for the end of the second top plate 11. Therefore, guardrails at both ends can be added to the second top plate 11.

[0050] The present invention has been disclosed above with reference to preferred embodiments, but it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

[0051] Working principle:

[0052] The following describes the working principle of the auxiliary lifting device obtained by adopting a staggered design scheme for No. 1 top plate 3 and No. 2 top plate 11. The specific working condition is that a single person performs bolt assembly and installation on the outdoor transformer shell. The transformer shell is a quasi-quadrangular prism structure, and bolts need to be tightened on the upper part and top of its four outer sides (the bolt holes reserved in the lower and middle parts have been tightened and fixed during the assembly).

[0053] First, the lifting device is towed to one side of the pre-assembled transformer casing using a tractor. After adjusting the working position of the lifting device, the first universal wheel 10 at its bottom is locked to ensure the stability of the first lifting unit 1. At the same time, the tractor is separated from the lifting device, so that the lifting device is positioned in the front of the working surface according to the adjusted working position. At this time, the worker climbs onto the first lifting unit 1 and controls the first hydraulic push rod assembly 8 to raise the first top plate 3 and lift the worker to the upper area of ​​the working surface. Then, the bolts on the upper part and top of one side of the transformer casing are tightened. After the bolts on the upper part and top of one side of the transformer casing are tightened, the rotating motor 22 is started. Driven by the rotating motor 22, the second lifting unit 2 rotates relative to the first lifting unit 1 until it rotates to 270°. The second top plate 11 is then positioned... At the work surface adjacent to the work surface where the worker is located, the No. 2 hydraulic push rod assembly 16 is controlled to raise the No. 2 top plate 11 to below the No. 1 top plate 3, with the height distance between the No. 2 top plate 11 and the No. 1 top plate 3 not exceeding 5cm. At this time, the No. 1 top plate 3 and the No. 2 top plate 11 form an L-shaped work platform. The worker can move directly from the No. 1 top plate 3 to the No. 2 top plate 11 and tighten the bolts on the work surface corresponding to the No. 2 top plate 11. After the construction work on the two work surfaces is completed, the worker controls the lifting unit to descend and moves from the lifting device to the ground. After ensuring his own safety, the lifting device is restored to its initial state. At the same time, a tractor is called to move the lifting device to the opposite side of the transformer shell corresponding to the No. 1 lifting unit 1. The above operation is repeated to complete the work requirement of tightening the bolts on all four sides of the transformer shell.

Claims

1. An auxiliary lifting device for power construction, characterized in that: The auxiliary lifting device includes a first lifting unit (1), a second lifting unit (2), and a rotating motor (22). One end of the second lifting unit (2) is mounted on one end of the first lifting unit (1). The rotating motor (22) is inverted on the second lifting unit (2), and the housing part of the rotating motor (22) is mounted on the first lifting unit (1) through a motor mounting bracket. The power output shaft of the rotating motor (22) is inserted into the second lifting unit (2) and fixedly connected to the second lifting unit (2). The second lifting unit (2) is rotatably connected to the first lifting unit (1) through the rotating motor (22).

2. The auxiliary lifting device for power construction according to claim 1, characterized in that: The rotation angle between the No. 1 lifting unit (1) and the No. 2 lifting unit (2) ranges from 0° to 270°.

3. The auxiliary lifting device for power construction according to claim 2, characterized in that: The No. 1 lifting unit (1) includes a No. 1 top plate (3), a No. 1 bottom plate (7), an extension plate (9), a No. 1 support unit, and multiple No. 1 universal wheels (10). The No. 1 top plate (3) and the No. 1 bottom plate (7) are arranged parallel to each other vertically. The No. 1 support unit is arranged vertically between the No. 1 top plate (3) and the No. 1 bottom plate (7). The top of the No. 1 support unit is fixedly connected to the bottom of the No. 1 top plate (3), and the bottom of the No. 1 support unit is fixedly connected to the top of the No. 1 bottom plate (7). One end of the No. 1 bottom plate (7) is the traction end for connecting with the traction mechanism, and the other end of the No. 1 bottom plate (7) is the rotating end. The extension plate (9) is arranged in a row. One side of the other end of the No. 1 base plate (7) is integrally formed with the No. 1 base plate (7) to form an L-shaped plate structure. One of the multiple No. 1 universal wheels (10) is installed at the bottom of the extension plate (9). The remaining universal wheels (10) are installed at equal intervals along the length extension direction of the No. 1 base plate (7) at the bottom of the No. 1 base plate (7). One end of the No. 2 lifting unit (2) is placed on the extension plate (9). The housing part of the rotating motor (22) is installed on the No. 1 base plate (7) through the motor mounting bracket. The power output shaft of the rotating motor (22) is located directly above the extension plate (9).

4. The auxiliary lifting device for power construction according to claim 3, characterized in that: The No. 1 support unit includes a No. 1 hydraulic push rod assembly (8) and two No. 1 support assemblies. The two No. 1 support assemblies are arranged opposite each other between the No. 1 top plate (3) and the No. 1 bottom plate (7) along the center line of the width direction of the No. 1 top plate (3). The top of each No. 1 support assembly is fixedly connected to the bottom of the No. 1 top plate (3), and the bottom of each No. 1 support assembly is fixedly connected to the top of the No. 1 bottom plate (7). The No. 1 hydraulic push rod assembly (8) is fixed to the top of the No. 1 bottom plate (7), and the piston rod end of the No. 1 hydraulic push rod assembly (8) is connected to the lower part of the two No. 1 support assemblies. The No. 1 hydraulic push rod assembly (8) serves as a power source to drive the two No. 1 support assemblies to extend and retract synchronously. The first support component includes a first upper slide rail (4), a first X-extension structure (5), and a first lower slide rail (6). The first upper slide rail (4) is fixed to the bottom of the first top plate (3) along the length extension direction of the first top plate (3), and the first lower slide rail (6) is fixed to the top of the first bottom plate (7) along the length extension direction of the first bottom plate (7). The first upper slide rail (4) and the first lower slide rail (6) are arranged vertically parallel to each other. The first X-extension structure (5) is arranged vertically between the first upper slide rail (4) and the first lower slide rail (6). Between the sliding tracks (6), one of the top legs of the first X-extension structure (5) is slidably connected to the first upper slide track (4) through a top sliding block, the other leg of the first X-extension structure (5) is fixedly connected to the first upper slide track (4) through a fixing block, one leg of the first X-extension structure (5) is slidably connected to the first sliding track (6) through a bottom sliding block, and the other leg of the first X-extension structure (5) is fixedly connected to the first sliding track (6) through a fixing block; The first hydraulic push rod assembly (8) includes a first hydraulic push rod, a first mounting base, and a first push plate. The first hydraulic push rod is fixed to the top of the first base plate (7) through the first mounting base, and the piston rod end of the first hydraulic push rod is set towards the two first support assemblies. The first push plate is arranged between the piston rod end of the first hydraulic push rod and the two first support assemblies. One end of the first push plate is fixedly connected to the piston rod end of the first hydraulic push rod, and the other end of the first push plate is fixedly connected to the bottom sliding block in each first support assembly.

5. An auxiliary lifting device for power construction according to claim 4, characterized in that: The second lifting unit (2) includes a second top plate (11), a second bottom plate (15), a second support unit, and multiple second universal wheels (17). The second top plate (11) and the second bottom plate (15) are arranged parallel to each other vertically. The second support unit is arranged vertically between the second top plate (11) and the second bottom plate (15). The top of the second support unit is fixedly connected to the bottom of the second top plate (11), and the bottom of the second support unit is fixedly connected to the top of the second bottom plate (15). One end of the second bottom plate (15) is a traction end used for... The traction mechanism is connected, and the other end of the second base plate (15) is the rotating end. The other end of the second base plate (15) is placed on the top of the extension plate (9). The power output shaft of the rotating motor (22) is inserted into the second base plate (15) and fixedly connected to the second base plate (15). Multiple height compensation blocks are arranged at equal intervals along the length extension direction of the second base plate (15) at the bottom of the second base plate (15), and each height compensation block is fixedly connected to the second base plate (15). Each second universal wheel (17) is installed at the bottom of a height compensation block.

6. An auxiliary lifting device for power construction according to claim 5, characterized in that: The second support unit includes a second hydraulic push rod assembly (16) and two second support assemblies. The two second support assemblies are arranged opposite each other between the second top plate (11) and the second bottom plate (15) along the center line of the width direction of the second bottom plate (15). The top of each second support assembly is fixedly connected to the bottom of the second top plate (11), and the bottom of each second support assembly is fixedly connected to the top of the second bottom plate (15). The second hydraulic push rod assembly (16) is fixed on the top of the second bottom plate (15), and the piston rod end of the second hydraulic push rod assembly (16) is connected to the lower part of the two second support assemblies. The second hydraulic push rod assembly (16) serves as a power source to drive the two second support assemblies to extend and retract synchronously. The second support component includes a second upper slide rail (12), a second X-extension structure (13), and a second lower slide rail (14). The second upper slide rail (12) is fixed to the bottom of the second top plate (11) along the length extension direction of the second top plate (11), and the second upper slide rail (12) is fixed to the top of the second bottom plate (15) along the length extension direction of the second bottom plate (15). The second upper slide rail (12) and the second lower slide rail (14) are arranged vertically parallel to each other. The second X-extension structure (13) is arranged vertically between the second upper slide rail (12) and the second lower slide rail (14). Between the second sliding track (14), and one of the top legs of the second X extension structure (13) is slidably connected to the second upper sliding track (12) through a top sliding block, the other leg of the second X extension structure (13) is fixedly connected to the second upper sliding track (12) through a fixing block, one leg of the second X extension structure (13) is slidably connected to the second sliding track (14) through a bottom sliding block, and the other leg of the second X extension structure (13) is slidably connected to the second sliding track (14) through a fixing block; The second hydraulic push rod assembly (16) includes a second hydraulic push rod, a second mounting base, and a second push plate. The second hydraulic push rod is fixed to the top of the second base plate (15) through the second mounting base, and the piston rod end of the second hydraulic push rod is set towards the two second support assemblies. The second push plate is arranged between the piston rod end of the second hydraulic push rod and the two second support assemblies. One end of the second push plate is fixedly connected to the piston rod end of the second hydraulic push rod, and the other end of the second push plate is fixedly connected to the bottom sliding block in each second support assembly.

7. An auxiliary lifting device for power construction according to claim 6, characterized in that: The top of the No. 1 roof slab (3) is provided with a No. 1 long side guardrail (18) and two No. 1 short side guardrails (19). The No. 1 long side guardrail (18) is installed on the long side of the top of the No. 1 roof slab (3) away from the construction area. The two No. 1 short side guardrails (19) are respectively set at both ends of the top of the No. 1 roof slab (3), and the No. 1 short side guardrails (19) set near the traction end of the No. 1 roof slab (3) are fixedly connected to the No. 1 roof slab (3). The first short side guardrail (19) located near the rotating end of the first top plate (3) is rotatably connected to the first long side guardrail (18) and locked to the first top plate (3) by a pull bolt. The first opening and closing door (18-1) is located at the center of the first long side guardrail (18). One side of the first opening and closing door (18-1) is rotatably connected to the first long side guardrail (18), and the other side of the first opening and closing door (18-1) is locked to the first long side guardrail (18) by a pull bolt.

8. An auxiliary lifting device for power construction according to claim 7, characterized in that: The top of the No. 2 top plate (11) is provided with a No. 2 long side guardrail (20) and a No. 2 short side guardrail (21). The No. 2 long side guardrail (20) is installed on the long side of the top of the No. 2 top plate (11) away from the construction area. The No. 2 short side guardrail (21) is fixedly installed on the top of the traction end of the No. 2 top plate (11). The No. 2 long side guardrail (20) is provided with a No. 2 opening and closing door (20-1) at the center. One side of the No. 2 opening and closing door (20-1) is rotatably connected to the No. 2 long side guardrail (20). The other side of the No. 2 opening and closing door (20-1) is locked to the No. 2 long side guardrail (20) by a pull bolt. The No. 2 opening and closing door (20-1) is correspondingly set with the No. 1 opening and closing door (18-1).

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