Curved steel lining tailor-welding equipment and construction method

Abstract

The present application relates to the technical field of underground gas storage chamber construction, and particularly relates to a curved surface steel lining splicing and welding equipment and a construction method. The equipment comprises a main beam, a sliding driving element, a supporting and folding assembly, a first rotary support, a second rotary support, a support adjusting assembly, a support adjusting walking assembly and a controller. The support adjusting assembly is connected with the main beam through the first rotary support. The support adjusting walking assembly is connected with the main beam through the second rotary support. The supporting and folding assembly is coaxially and slidably arranged on the main beam and is linked with the sliding driving element to be supported and folded or folded. The controller is arranged on the support adjusting walking assembly. The sliding driving element, the first rotary support, the second rotary support, the support adjusting assembly and the support adjusting walking assembly are connected with the controller. The construction method using the equipment can not only complete the operation of plugging the hemispherical end head in the gas storage chamber, but also can be automatically pulled out from the hemispherical end head after the operation is completed, so that the construction efficiency is high and the safety is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underground gas storage chamber construction, and particularly relates to a curved surface steel lining splicing and welding equipment and a construction method. BACKGROUND

[0002] In a compressed air energy storage project, for a gas storage chamber adopting a steel lining sealing layer, the steel lining sealing layer includes a straight section annular steel lining sealing layer and a head half-spherical steel lining sealing layer. The straight section annular steel lining sealing layer is generally spliced and welded by using a straight section steel lining splicing and welding equipment. The straight section annular steel lining splicing and welding equipment cannot complete the plugging construction of the head half-spherical steel lining sealing layer. Common head plugging processes include a “flat bottom” plugging process and a “half-spherical” plugging process. The “flat bottom” plugging process is relatively simple and has a small difficulty, but there is a large stress concentration at a connection between the flat bottom and the annular steel lining, and stress damage is prone to occurring at the connection between the flat bottom and the annular steel lining in a later gas charging and discharging process of the gas storage chamber. The “half-spherical” plugging process can greatly reduce the stress concentration, but has a large construction difficulty. For example, the construction is performed by using a manual lifting tower combined with a crane, and the construction process is dangerous, the steel lining splicing and welding quality cannot be completely guaranteed, and meanwhile, a large amount of over-excavation needs to be performed on the gas storage chamber, thereby increasing the construction cost and the construction period.

[0003] Therefore, it is necessary to provide a curved surface steel lining splicing and welding equipment and a construction method to solve the problems of the “flat bottom” plugging process that is prone to causing stress damage at a connection between a flat bottom and an annular steel lining, and the “half-spherical” plugging process that has a large construction risk, a high construction cost, a long construction period and a difficult construction quality guarantee. SUMMARY

[0004] The present application aims to provide a curved surface steel lining splicing and welding equipment and a construction method, and the specific technical solutions are as follows. In a first aspect, the present application provides a curved surface steel lining splicing and welding equipment, which includes a main beam, a sliding driving member, a strutting and folding assembly, a first rotary support, a second rotary support, a support adjusting assembly and a support adjusting walking assembly. The support adjusting assembly is arranged below one end of the main beam in a length direction, and is connected with the main beam through the first rotary support. The support adjusting walking assembly is arranged below the other end of the main beam in the length direction, and is connected with the main beam through the second rotary support. The strutting and folding assembly is coaxially and slidably arranged on the main beam, one end of the strutting and folding assembly is an opening and closing end and faces the support adjusting assembly, and the other end of the strutting and folding assembly is a hinged end and is hingedly arranged on the main beam. The sliding driving member is arranged on the main beam, and a driving end of the sliding driving member is connected with the strutting and folding assembly, and is used for driving the strutting and folding assembly to be strutting or folding. The support adjustment assembly includes a first slewing connecting frame, a first support unit, and a second support unit; the first slewing connecting frame is connected to the first slewing support; the tops of the first support unit and the second support unit are both hinged to the first slewing connecting frame; the first support unit and the second support unit are openable and closable; the first support unit includes a first lifting drive component for driving the bottom of the first support unit to be flush with its top; the second support unit includes a second lifting drive component for driving the bottom of the second support unit to be flush with its top.

[0005] Optionally, the expansion and retraction assembly includes a first connecting ring, a first radial lead screw, and a support frame; the first connecting ring is coaxially and slidably disposed on the main beam; the first connecting ring is connected to the driving end of the sliding drive component; there are multiple first radial lead screws, which are spaced and hinged to each other on the outer periphery of the first connecting ring; one end of the support frame is an opening and closing end, which is disposed towards the support adjustment assembly, while the other end is a hinged end, which is hinged to the main beam; the end of each first radial lead screw away from the first connecting ring is hinged to the opening and closing end of the support frame.

[0006] Optionally, the expansion and retraction assembly further includes a second connecting ring and a second radial screw; the second connecting ring is coaxially and slidably disposed on the main beam and connected to the first connecting ring via a connecting rod; the second connecting ring is disposed on the side of the first connecting ring away from the sliding drive member; there are multiple second radial screws, which are spaced and hinged to each other on the outer periphery of the second connecting ring; the end of each second radial screw away from the second connecting ring is hinged to the support frame.

[0007] Optionally, the support frame includes multiple support rod units spaced apart outside the main beam, and the number of support rod units is the same as the number of the first radial screws and the number of the second radial screws; each support rod unit is configured in a one-to-one correspondence with each of the first radial screws; each support rod unit is configured in a one-to-one correspondence with each of the second radial screws.

[0008] Optionally, the expansion and retraction assembly further includes a first circumferential lead screw unit; the first circumferential lead screw unit is circumferentially disposed on the support bar skeleton, and includes multiple first lead screw units; the first lead screw units are hinged between each pair of adjacent support bar units.

[0009] Optionally, the expansion and retraction assembly further includes a second circumferential screw unit; the second circumferential screw unit is circumferentially disposed on the support bar skeleton and spaced apart from the first circumferential screw unit; the second circumferential screw unit includes multiple second screw units; and the second screw units are hinged between each pair of adjacent support bar units.

[0010] Optionally, the expansion and retraction assembly further includes a first pulley; the first pulley is multiple in number and is spaced apart on the inner ring surface of the first connecting ring, and slides in contact with the main beam; The expansion and retraction assembly also includes a second pulley; there are multiple second pulleys, which are spaced apart on the inner ring surface of the second connecting ring and slide in contact with the main beam.

[0011] Optionally, the first support unit further includes a first support leg, a first connecting seat, and a first opening / closing drive member; a first hinge hole, a second hinge hole, a third hinge hole, and a fourth hinge hole are provided on the first connecting seat; the first connecting seat is hinged to the first rotary connecting frame through the first hinge hole and a first pin; the first connecting seat is hinged to the first support leg through the second hinge hole and a second pin; the axial direction of the second pin is perpendicular to the axial direction of the first pin; the first connecting seat is hinged to the fixed end of the first opening / closing drive member through the third hinge hole and the third pin; the driving end of the first opening / closing drive member is hinged to the first support leg; the axial direction of the third pin is parallel to the axial direction of the second pin; the first connecting seat is hinged to the driving end of the first lifting drive member through the fourth hinge hole and the fourth pin; the fixed end of the first lifting drive member is hinged to the first rotary connecting frame; the axial direction of the fourth pin is parallel to the axial direction of the first pin. The second support unit further includes a second support leg, a second connecting seat, and a second opening / closing drive member. A fifth hinge hole, a sixth hinge hole, a seventh hinge hole, and an eighth hinge hole are provided on the second connecting seat. The second connecting seat is hinged to the first rotary connecting frame via the fifth hinge hole and a fifth pin. The second connecting seat is hinged to the second support leg via the sixth hinge hole and a sixth pin. The axial direction of the sixth pin is perpendicular to the axial direction of the fifth pin. The second connecting seat is hinged to the fixed end of the second opening / closing drive member via the seventh hinge hole and a seventh pin. The driving end of the second opening / closing drive member is hinged to the second support leg. The axial direction of the seventh pin is parallel to the axial direction of the sixth pin. The second connecting seat is hinged to the driving end of the second lifting drive member via the eighth hinge hole and an eighth pin. The fixed end of the second lifting drive member is hinged to the first rotary connecting frame. The axial direction of the eighth pin is parallel to the axial direction of the fifth pin.

[0012] Optionally, the curved steel lining welding equipment further includes a controller; the controller is mounted on the support adjustment and walking assembly; the sliding drive, the first slewing support, the second slewing support, the first opening and closing drive, the second opening and closing drive, and the support adjustment and walking assembly are all connected to the controller.

[0013] Optionally, the support adjustment and walking assembly includes a second rotary connecting frame, a first support adjustment and walking unit, and a second support adjustment and walking unit; the top of the first support adjustment and walking unit and the top of the second support adjustment and walking unit are both connected to the second rotary support through the second rotary connecting frame; The first support adjustment walking unit includes a first column, a third lifting drive component, a first lateral movement module, and a first walking module; the top end of the first column is connected to the second rotary connecting frame, and the bottom end is connected to the first walking module; the first lateral movement module is sleeved on the first column and located above the first walking module; the first lateral movement module and the first column are connected by the third lifting drive component; the third lifting drive component, the first lateral movement module, and the first walking module are all connected to the controller; The second support adjustment walking unit includes a second column, a fourth lifting drive component, a second lateral movement module, and a second walking module; the top end of the second column is connected to the second rotary connecting frame, and the bottom end is connected to the second walking module; the second lateral movement module is sleeved on the second column and located above the second walking module; the second lateral movement module and the second column are connected by the fourth lifting drive component; the fourth lifting drive component, the second lateral movement module, and the second walking module are all connected to the controller.

[0014] Optionally, the first lateral movement module includes a first sliding seat, a first lateral movement cylinder, and a first base; the first sliding seat is sleeved on the first column and located above the first walking module; the first sliding seat and the first column are connected by the third lifting drive component; the first base is located below the first sliding seat, and the two are laterally slidably connected; one end of the first lateral movement cylinder is connected to the first base, and the other end is connected to the first sliding seat; the first lateral movement cylinder is connected to the controller. When a lateral movement is required, the controller is used to activate the third lifting drive, which is used to link the first sliding seat to drive the first base onto the track in the gas storage chamber. Then, the controller is used to activate the first lateral movement cylinder, which is used to link the first sliding seat to drive the first column to move laterally relative to the first base, thus completing the lateral movement. After the lateral movement is completed, the controller is used to activate the first lateral movement cylinder, which is used to link the first sliding seat to move the first column laterally to directly above the first base. Then, the controller is used to activate the third lifting drive, which is used to link the first sliding seat to move the first base upward, providing space for the first walking module to move. The first walking module includes a third connecting seat, a first fixed seat, a first walking drive component, and a first walking wheel; the third connecting seat is disposed on the first fixed seat, and its top is connected to the first column; the first walking drive component is disposed on the first fixed seat, and its output end is connected to the first walking wheel via a chain; the first walking wheel is connected to the first fixed seat via a connecting shaft; the first walking drive component is connected to the controller. When a walking action is required, the controller is used to start the first walking drive component, and the first walking wheel is linked by the chain to complete the walking action. The second lateral movement module includes a second sliding seat, a second lateral movement cylinder, and a second base; the second sliding seat is sleeved on the second column and located above the second walking module; the second sliding seat and the second column are connected by the fourth lifting drive component; the second base is located below the second sliding seat, and the two are laterally slidably connected; one end of the second lateral movement cylinder is connected to the second base, and the other end is connected to the second sliding seat; the second lateral movement cylinder is connected to the controller. When a lateral movement is required, the controller is used to activate the fourth lifting drive, which is used to link the second sliding seat to drive the second base onto the track in the gas storage chamber. Then, the controller is used to activate the second lateral movement cylinder, which is used to link the second sliding seat to drive the second column to move laterally relative to the second base, thus completing the lateral movement. After the lateral movement is completed, the controller is used to activate the second lateral movement cylinder, which is used to drive the second column to move laterally to directly above the second base. Then, the controller is used to activate the fourth lifting drive, which is used to drive the second base to move upward, providing space for the second walking module to move. The second walking module includes a fourth connecting seat, a second fixed seat, a second walking drive component, and a second walking wheel; the fourth connecting seat is disposed on the second fixed seat, and its top is connected to the second column; the second walking drive component is disposed on the second fixed seat, and its output end is connected to the second walking wheel via a chain; the second walking wheel is connected to the second fixed seat via a connecting shaft; the second walking drive component is connected to the controller. When a walking action is required, the controller is used to activate the second walking drive, which in turn drives the second walking wheel via a chain to complete the walking action.

[0015] Optionally, the curved steel lining welding equipment further includes a support auxiliary adjustment component; the support auxiliary adjustment component is disposed between the spreading and retracting component and the support adjustment and walking component, and includes a support beam, a telescopic sleeve, and a third pulley; the support beam is connected to the main beam; the telescopic sleeve is respectively disposed at both ends of the support beam; the third pulley is disposed at the end of each telescopic sleeve away from the support beam; the distance between the two third pulleys is equal to the distance between the first walking module and the second walking module; Each of the telescopic sleeves includes a telescopic drive component, an outer sleeve, and an inner sleeve; the outer sleeve and the inner sleeve are coaxially arranged, and the telescopic drive component is disposed between them; the telescopic drive component is connected to the controller.

[0016] In a second aspect, the present invention also provides a construction method using the aforementioned curved steel lining welding equipment, comprising: Step S1: After the circumferential steel lining of the straight section in the gas storage chamber is welded, the curved steel lining welding equipment is hoisted into the site to ensure that the support adjustment and walking assembly is placed on the track in the gas storage chamber; the controller is used to start the telescopic drive to drive the telescopic sleeve to extend until the third pulley contacts the track; the controller is used to start the first walking module and the second walking module to walk, and then the support adjustment and walking assembly links the main beam, the expansion and retraction assembly and the support adjustment assembly to the working position; Step S2: Using the controller, the first opening and closing drive and the second opening and closing drive are activated to drive the first support leg and the second support leg to open and close to the required working angle, ensuring that the main beam is coaxial with the gas storage chamber; the bottom end of the first support leg and the bottom end of the second support leg are in contact with the circumferential steel lining of the straight section of the gas storage chamber. Step S3: First, the controller is used to activate the sliding drive component to link with the opening and closing assembly to open; Subsequently, the controller is used to activate the telescopic drive to retract the telescopic sleeve, providing transportation space for the transport vehicle carrying the steel plate; the hoisting equipment in the gas storage chamber is used to hoist the steel plate to the target area of ​​the support frame, and the operators use bolts or clamps to fix the steel plate to the target area of ​​the support frame; Then, the controller synchronously starts the first slewing support and the second slewing support, linking the main beam and the sliding drive component, thereby driving the support frame to rotate to the next target area. The same steel plate installation method is used to install the steel plates on the corresponding target areas until the steel plates on all target areas of the support frame are installed. Among them, a reserved hole is provided in the circumferential area near the hinge end of the support frame. After installation, each pair of adjacent steel plates is fixed with a clamp. Finally, each pair of adjacent steel plates after fixing is welded together to form a hemispherical end that fits the end of the gas storage chamber. Step S4: Start the first walking module and the second walking module to walk using the controller. Link the main beam and the sliding drive component through the support adjustment walking component, thereby driving the hemispherical end on the support frame to align with the end ring circumferential steel lining of the straight section. Then, weld the aligned circumferential seam. Step S5: The controller is used to activate the sliding drive component to retract the opening and closing assembly; the controller is used to activate the first opening and closing drive component and the second opening and closing drive component to retract the first support leg and the second support leg respectively; the controller is then used to activate the first lifting drive component and the second lifting drive component to retract the first support leg and the second support leg parallel to the axis of the main beam; the controller is used to activate the first walking module and the second walking module to walk, and the support adjustment walking assembly is used to retract the main beam and the sliding drive component, thereby driving the opening and closing assembly and the support adjustment assembly to be pulled out of the reserved hole; subsequently, the reserved hole is sealed.

[0017] Optionally, the construction method for the curved steel lining welding equipment further includes: In step S1, a counterweight is provided on the support adjustment walking assembly; In step S2, elastic pads are provided at the bottom ends of both the first support leg and the second support leg.

[0018] Optionally, the construction method for the curved steel lining welding equipment further includes: In step S3, before the welding process, the controller is used to synchronously start the first slewing support and the second slewing support to link the main beam and the sliding drive, thereby driving the support frame to rotate to the welding area.

[0019] Optionally, the construction method for the curved steel lining welding equipment further includes: In step S4, before aligning the hemispherical end of the support frame with the circumferential steel lining of the straight section, the controller is used to simultaneously start the first slewing support and the second slewing support, linking the main beam and the sliding drive, thereby driving the support frame to rotate until the support auxiliary adjustment component is facing the track. Then, the controller is used to start the telescopic drive to drive the telescopic sleeve to extend until the third pulley contacts the track. If misalignment occurs when aligning the hemispherical end of the support frame with the circumferential steel lining of the straight section, the controller first activates the telescopic drive to retract the telescopic sleeve, and then the controller activates the third and fourth lifting drives to synchronously link the first and second lateral movement modules, forcing the first and second columns to link with the main beam to align the hemispherical end of the support frame with the circumferential steel lining of the straight section.

[0020] Optionally, the construction method for the curved steel lining welding equipment further includes: In step S5, before extraction, the controller synchronously starts the first slewing support and the second slewing support, linking the main beam and the sliding drive, thereby driving the support frame to rotate until the support auxiliary adjustment component is facing the track. Then, the controller starts the telescopic drive to drive the telescopic sleeve to extend until the third pulley contacts the track.

[0021] The application of the technical solution of the present invention has at least the following beneficial effects: (1) The curved steel lining welding equipment provided by the present invention can solve the problems of stress damage at the connection between the flat bottom and the circumferential steel lining in "flat bottom" sealing, and the problems of high construction risk, high construction cost, long construction period and difficulty in ensuring construction quality in "hemispherical" sealing. Specifically, the present invention uses the sliding drive component to link the opening and closing assembly to open; the first rotary support and the second rotary support are used to synchronously link the main beam and the sliding drive component, thereby driving the opening and closing assembly to rotate until the steel plates on all target areas of the opening and closing assembly are installed. Among them, a reserved hole is set in the circumferential area near the hinge end of the opening and closing assembly; welding is performed between each pair of adjacent steel plates to form a hemispherical end that matches the end of the gas storage chamber; the support adjustment and walking assembly is used to link the main beam and the sliding drive component, thereby driving the hemispherical end on the opening and closing assembly to connect with the straight section. The final ring is aligned with the circumferential steel lining, and then the aligned circumferential seam is welded. The sliding drive is used to link the expansion and retraction assembly to retract the lining. The first support unit and the second support unit are merged, and then the first lifting drive and the second lifting drive are used to link the first support unit and the second support unit to be parallel to the axis of the main beam (i.e., respectively driving the bottom of the first support unit to be flush with its top, and the bottom of the second support unit to be flush with its top). The support adjustment and walking assembly is used to link the main beam and the sliding drive, thereby driving the expansion and retraction assembly to be pulled out from the reserved hole. Then, the reserved hole is sealed. Therefore, the curved steel lining welding equipment provided by this invention can not only complete the sealing operation of the hemispherical end (i.e., the end hemispherical steel lining sealing layer) in the gas storage chamber, but also has high operation efficiency, low cost, simple operation, stable construction quality, low risk, and no need for disassembly inside the end sealing, greatly reducing the construction difficulty.

[0022] (2) The construction method of the curved steel lining welding equipment provided by the present invention can not only complete the sealing layer of the hemispherical steel lining at the end of the gas storage chamber, but also extract it from the hemispherical end on its own after the operation is completed. It has high construction efficiency, good safety, ensures the quality of steel lining welding, does not require excessive over-excavation of the chamber, can reduce construction costs, shorten the construction cycle, and ensure the safe and efficient progress of the project.

[0023] (3) In step S4 of the present invention, if misalignment occurs when the hemispherical end on the support frame is aligned with the circumferential steel lining of the straight section, the controller is first used to activate the telescopic drive to retract the telescopic sleeve, and then the controller is used to activate the third lifting drive and the fourth lifting drive to synchronously link the first transverse module and the second transverse module, forcing the first column and the second column to link with the main beam to align the hemispherical end on the support frame with the circumferential steel lining of the straight section.

[0024] (4) In step S5 of the present invention, before extraction, the controller is used to synchronously start the first slewing support and the second slewing support to link the main beam and the sliding drive, thereby driving the support frame to rotate to the point where the support auxiliary adjustment component is facing the track. Then, the controller is used to start the telescopic drive to drive the telescopic sleeve to extend until the third pulley contacts the track, so as to provide stable support for the extraction operation.

[0025] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a curved steel lining welding equipment in one of the embodiments.

[0028] Figure 2 This is a schematic diagram of the support adjustment component in the embodiment.

[0029] Figure 3 This is a schematic diagram of the structure of the first rotary connecting frame in the embodiment.

[0030] Figure 4 for Figure 2 Enlarged view of the middle support adjustment assembly (the first rotary connecting frame is not shown in the figure).

[0031] Figure 5 This is a schematic diagram of the structure of the expansion and contraction component in the embodiment.

[0032] Figure 6 This is a schematic diagram of the structure after the first connecting ring, the connecting rod and the second connecting ring are assembled in the embodiment.

[0033] Figure 7 This is a schematic diagram of the supporting auxiliary adjustment component in the embodiment.

[0034] Figure 8 This is a schematic diagram of the support adjustment walking assembly in the embodiment.

[0035] Figure 9 This is a schematic diagram of the structure of the first transverse module in the embodiment (the first column is also shown in the figure).

[0036] Figure 10 This is a schematic diagram of the structure of the first walking module in the embodiment.

[0037] Figure 11 This is a schematic diagram of the structure of a curved steel lining welding equipment being pulled out from the hemispherical end in one of the embodiments.

[0038] Reference numerals: 1. Main beam; 2. Sliding drive component; 3. Spreading and retracting assembly; 3.1. First connecting ring; 3.2. First radial lead screw; 3.3. Support frame; 3.4. Second connecting ring; 3.5. Second radial lead screw; 3.6. First circumferential lead screw unit; 3.7. Second circumferential lead screw unit; 4. First slewing support; 5. Second slewing support; 6. Support adjustment assembly; 6.1. First slewing connecting frame; 6.2. First lifting drive component; 6.3. Second lifting drive component; 6.4. First support leg; 6.5. First connecting seat; 6.6. First opening and closing drive component; 6.7. Second support leg; 6.8. Second connecting seat; 6.9. Second opening and closing drive component; 7. Support adjustment and walking assembly; 7.1. 7.2 Second slewing connecting frame, 7.3 First column, 7.4 Third lifting drive component, 7.5 First lateral movement module, 7.4.1 First sliding seat, 7.4.2 First lateral movement cylinder, 7.4.3 First base, 7.5 First walking module, 7.5.1 Third connecting seat, 7.5.2 First fixed seat, 7.5.3 First walking drive component, 7.5.4 First walking wheel, 7.6 Second column, 7.7 Fourth lifting drive component, 7.8 Second lateral movement module, 7.9 Second walking module, 8 Support auxiliary adjustment component, 8.1 Support beam, 8.2 Telescopic sleeve, 8.3 Third pulley, 9 Hydraulic system, 10 Electrical system, A. Circumferential steel lining of straight section, B. Hemispherical end. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1: See Figures 1-11 A curved steel lining welding equipment includes a main beam 1, a sliding drive component 2 (such as a sliding cylinder), an opening and closing assembly 3, a first slewing support 4, a second slewing support 5, a support adjustment assembly 6, and a support adjustment and walking assembly 7. The support adjustment assembly 6 is located below one end of the main beam 1 along its length and is connected to the main beam 1 via the first slewing support 4; the support adjustment travel assembly 7 is located below the other end of the main beam 1 along its length and is connected to the main beam 1 via the second slewing support 5. The expansion and retraction assembly 3 is coaxially and slidably mounted on the main beam 1. One end of the assembly is an opening and closing end, which is positioned towards the support adjustment assembly 6, while the other end is a hinged end, which is hinged to the main beam 1. The sliding drive 2 is mounted on the main beam 1, and its drive end is connected to the expansion and retraction assembly 3, which is used to link the expansion and retraction assembly 3 to expand or retract. The support adjustment assembly 6 includes a first rotary connecting frame 6.1, a first support unit, and a second support unit; the first rotary connecting frame 6.1 is connected to the first rotary support 4; the tops of the first support unit and the second support unit are both hinged to the first rotary connecting frame 6.1; the first support unit and the second support unit are openable and closable; the first support unit includes a first lifting drive component 6.2 (such as a lifting cylinder) for driving the bottom of the first support unit to be flush with its top; the second support unit includes a second lifting drive component 6.3 (such as a lifting cylinder) for driving the bottom of the second support unit to be flush with its top.

[0041] See Figure 1 , Figure 5 and Figure 6 The expansion and contraction assembly 3 includes a first connecting ring 3.1, a first radial screw 3.2, and a support frame 3.3. The first connecting ring 3.1 is coaxially and slidably mounted on the main beam 1. The first connecting ring 3.1 is connected to the driving end of the sliding drive component 2. There are multiple first radial screws 3.2, which are spaced apart and hinged to each other on the outer periphery of the first connecting ring 3.1. One end of the support frame 3.3 is an opening and closing end, which faces the support adjustment assembly 6, while the other end is a hinged end, which is hinged to the main beam 1. The end of each first radial screw 3.2 away from the first connecting ring 3.1 is hinged to the opening and closing end of the support frame 3.3, which facilitates the improvement of the stability of the support frame 3.3 in the expanded state.

[0042] See Figure 1 , Figure 5 and Figure 6 The expansion and retraction assembly 3 further includes a second connecting ring 3.4 and a second radial screw 3.5; the second connecting ring 3.4 is coaxially and slidably mounted on the main beam 1 and is connected to the first connecting ring 3.1 via a connecting rod; the second connecting ring 3.4 is located on the side of the first connecting ring 3.1 away from the sliding drive member 2; there are multiple second radial screws 3.5, which are spaced apart and hinged to the outer periphery of the second connecting ring 3.4; the end of each second radial screw 3.5 away from the second connecting ring 3.4 is hinged to the support frame 3.3, which facilitates the improvement of the stability of the support frame 3.3 in the expanded state.

[0043] See Figure 1 , Figure 5 and Figure 6 The support frame 3.3 includes multiple support rods spaced apart outside the main beam 1, and the number of support rods is the same as the number of the first radial screws 3.2 and the number of the second radial screws 3.5; each support rod is arranged in a one-to-one correspondence with each of the first radial screws 3.2; each support rod is arranged in a one-to-one correspondence with each of the second radial screws 3.5. See Figure 1 , Figure 5 and Figure 6 The expansion and retraction assembly 3 further includes a first circumferential screw unit 3.6; the first circumferential screw unit 3.6 is circumferentially disposed on the support frame 3.3, and includes multiple first screw units; the first screw units are hinged between each pair of adjacent support units to improve the stability of the support frame 3.3 in the expanded state.

[0044] See Figure 1 , Figure 5 and Figure 6 The expansion and retraction assembly 3 further includes a second circumferential screw unit 3.7; the second circumferential screw unit 3.7 is circumferentially disposed on the support frame 3.3 and spaced apart from the first circumferential screw unit 3.6; the second circumferential screw unit 3.7 includes multiple second screw units; the second screw units are hinged between each pair of adjacent support units to improve the stability of the support frame 3.3 in the expanded state.

[0045] See Figure 6 The expansion and retraction assembly 3 also includes a first pulley; there are multiple first pulleys, which are spaced apart on the inner ring surface of the first connecting ring 3.1 and slide in contact with the main beam 1 to ensure the smoothness of the support frame 3.3 when completing the expansion and retraction operations; See Figure 6 The expansion and retraction assembly 3 also includes a second pulley; there are multiple second pulleys, which are spaced apart on the inner ring surface of the second connecting ring 3.4 and slide in contact with the main beam 1 to ensure the smoothness of the support frame 3.3 when completing the expansion and retraction operations.

[0046] See Figure 2 and Figure 4The first support unit further includes a first support leg 6.4, a first connecting seat 6.5, and a first opening / closing drive component 6.6 (such as a hydraulic cylinder); a first hinge hole, a second hinge hole, a third hinge hole, and a fourth hinge hole are provided on the first connecting seat 6.5; the first connecting seat 6.5 is hinged to the first rotary connecting frame 6.1 (specifically, a first connecting block welded to the first rotary connecting frame 6.1) through the first hinge hole and the first pin; the first connecting seat 6.5 is hinged to the first support leg 6.4 through the second hinge hole and the second pin; the axial direction of the second pin is perpendicular to the axial direction of the first pin. The first connecting seat 6.5 is hinged to the fixed end of the first opening and closing drive member 6.6 through the third hinge hole and the third pin; the driving end of the first opening and closing drive member 6.6 is hinged to the first support leg 6.4; the axial direction of the third pin is parallel to the axial direction of the second pin; the first connecting seat 6.5 is hinged to the driving end of the first lifting drive member 6.2 through the fourth hinge hole and the fourth pin; the fixed end of the first lifting drive member 6.2 is hinged to the first rotary connecting frame 6.1; the axial direction of the fourth pin is parallel to the axial direction of the first pin. The second support unit further includes a second support leg 6.7, a second connecting seat 6.8, and a second opening / closing drive component 6.9 (such as a hydraulic cylinder); a fifth hinge hole, a sixth hinge hole, a seventh hinge hole, and an eighth hinge hole are provided on the second connecting seat 6.8; the second connecting seat 6.8 is hinged to the first rotary connecting frame 6.1 (specifically, the second connecting block welded to the first rotary connecting frame 6.1) through the fifth hinge hole and the fifth pin; the second connecting seat 6.8 is hinged to the second support leg 6.7 through the sixth hinge hole and the sixth pin; the axial direction of the sixth pin is perpendicular to the axial direction of the fifth pin. The second connecting seat 6.8 is hinged to the fixed end of the second opening and closing drive member 6.9 through the seventh hinge hole and the seventh pin; the driving end of the second opening and closing drive member 6.9 is hinged to the second support leg 6.7; the axial direction of the seventh pin is parallel to the axial direction of the sixth pin; the second connecting seat 6.8 is hinged to the driving end of the second lifting drive member 6.3 through the eighth hinge hole and the eighth pin; the fixed end of the second lifting drive member 6.3 is hinged to the first rotary connecting frame 6.1; the axial direction of the eighth pin is parallel to the axial direction of the fifth pin.

[0047] The curved steel lining welding equipment also includes a controller (such as a PLC controller, not shown in the figure); the controller is mounted on the support adjustment and walking assembly 7; the sliding drive 2, the first rotary support 4, the second rotary support 5, the first opening and closing drive 6.6, the second opening and closing drive 6.9 and the support adjustment and walking assembly 7 are all connected to the controller.

[0048] See Figure 8 The support adjustment and walking assembly 7 includes a second rotary connecting frame 7.1, a first support adjustment and walking unit, and a second support adjustment and walking unit; the top of the first support adjustment and walking unit and the top of the second support adjustment and walking unit are both connected to the second rotary support 5 through the second rotary connecting frame 7.1. The first support adjustment walking unit includes a first column 7.2, a third lifting drive component 7.3 (such as a lifting cylinder), a first lateral movement module 7.4, and a first walking module 7.5; the top end of the first column 7.2 is connected to the second rotary connecting frame 7.1, and the bottom end is connected to the first walking module 7.5; the first lateral movement module 7.4 is sleeved on the first column 7.2 and located above the first walking module 7.5; the first lateral movement module 7.4 and the first column 7.2 are connected by the third lifting drive component 7.3; the third lifting drive component 7.3, the first lateral movement module 7.4, and the first walking module 7.5 are all connected to the controller.

[0049] See Figure 9 The first lateral movement module 7.4 includes a first sliding seat 7.4.1, a first lateral movement cylinder 7.4.2, and a first base 7.4.3. The first sliding seat 7.4.1 is sleeved on the first column 7.2 and located above the first walking module 7.5. The first sliding seat 7.4.1 and the first column 7.2 are connected by the third lifting drive component 7.3. The first base 7.4.3 is located below the first sliding seat 7.4.1, and the two are laterally slidably connected. One end of the first lateral movement cylinder 7.4.2 is connected to the first base 7.4.3, and the other end is connected to the first sliding seat 7.4.1. The first lateral movement cylinder 7.4.2 is connected to the controller. When a lateral movement is required, the controller activates the third lifting drive 7.3, which in turn drives the first sliding seat 7.4.1 to lower the first base 7.4.3 onto the track inside the gas storage chamber. Subsequently, the controller activates the first lateral movement cylinder 7.4.2, which in turn drives the first sliding seat 7.4.1 to move the first column 7.2 laterally relative to the first base 7.4.3, thus completing the lateral movement. After the lateral movement is completed, the controller is used to activate the first lateral movement cylinder 7.4.2, which is used to drive the first sliding seat 7.4.1 to move the first column 7.2 laterally to directly above the first base 7.4.3. Subsequently, the controller is used to activate the third lifting drive 7.3, which is used to drive the first sliding seat 7.4.1 to move the first base 7.4.3 upward, providing space for the first walking module 7.5 to move.

[0050] See Figure 10 The first walking module 7.5 includes a third connecting seat 7.5.1, a first fixed seat 7.5.2, a first walking drive component 7.5.3 (such as a drive motor), and a first walking wheel 7.5.4; the third connecting seat 7.5.1 is disposed on the first fixed seat 7.5.2, and its top is connected to the first column 7.2; the first walking drive component 7.5.3 is disposed on the first fixed seat 7.5.2, and its output end is connected to the first walking wheel 7.5.4 via a chain; the first walking wheel 7.5.4 is connected to the first fixed seat 7.5.2 via a connecting shaft; the first walking drive component 7.5.3 is connected to the controller; When a walking action is required, the controller is used to start the first walking drive 7.5.3, and the first walking wheel 7.5.4 is linked by a chain to complete the walking action.

[0051] The second support adjustment and walking unit includes a second column 7.6, a fourth lifting drive component 7.7 (such as a lifting cylinder), a second lateral movement module 7.8, and a second walking module 7.9; the top end of the second column 7.6 is connected to the second rotary connecting frame 7.1, and the bottom end is connected to the second walking module 7.9; the second lateral movement module 7.8 is sleeved on the second column 7.6 and located above the second walking module 7.9; the second lateral movement module 7.8 and the second column 7.6 are connected by the fourth lifting drive component 7.7; the fourth lifting drive component 7.7, the second lateral movement module 7.8, and the second walking module 7.9 are all connected to the controller.

[0052] The second lateral movement module 7.8 includes a second sliding seat, a second lateral movement cylinder, and a second base; the second sliding seat is sleeved on the second column and located above the second walking module; the second sliding seat and the second column 7.6 are connected by the fourth lifting drive component 7.7; the second base is located below the second sliding seat, and the two are laterally slidably connected; one end of the second lateral movement cylinder is connected to the second base, and the other end is connected to the second sliding seat; the second lateral movement cylinder is connected to the controller. When a lateral movement is required, the controller is used to activate the fourth lifting drive 7.7, which is used to link the second sliding seat to drive the second base onto the track in the gas storage chamber. Then, the controller is used to activate the second lateral movement cylinder, which is used to link the second sliding seat to drive the second column to move laterally relative to the second base, thus completing the lateral movement. After the lateral movement is completed, the controller is used to activate the second lateral movement cylinder, which is used to drive the second column to move laterally to directly above the second base. Subsequently, the controller is used to activate the fourth lifting drive 7.7, which is used to drive the second base to move upward, providing space for the second walking module 7.9 to move.

[0053] The second walking module 7.9 includes a fourth connecting seat, a second fixed seat, a second walking drive component (such as a drive motor), and a second walking wheel; the fourth connecting seat is disposed on the second fixed seat, and its top is connected to the second column 7.6; the second walking drive component is disposed on the second fixed seat, and its output end is connected to the second walking wheel via a chain; the second walking wheel is connected to the second fixed seat via a connecting shaft; the second walking drive component is connected to the controller; When a walking action is required, the controller is used to activate the second walking drive, which in turn drives the second walking wheel via a chain to complete the walking action.

[0054] See Figure 8 The support adjustment walking assembly 7 also includes a diagonal brace, which is a herringbone structure. Its top end is connected to the second rotary connecting frame 7.1, and its two bottom ends are connected to the first column 7.2 and the second column 7.6, respectively.

[0055] See Figure 7 The curved steel lining welding equipment further includes a support auxiliary adjustment component 8; the support auxiliary adjustment component 8 is disposed between the spreading and retracting component 3 and the support adjustment and walking component 7, and includes a support beam 8.1, a telescopic sleeve 8.2, and a third pulley 8.3; the support beam 8.1 is connected to the main beam 1; the telescopic sleeve 8.2 is respectively provided at both ends of the support beam 8.1; the third pulley 8.3 is provided at the end of each telescopic sleeve 8.2 away from the support beam 8.1; the distance between the two third pulleys 8.3 is equal to the distance between the first walking module 7.5 and the second walking module 7.9; Each of the telescopic sleeves 8.2 includes a telescopic drive component (such as a hydraulic cylinder), an outer sleeve, and an inner sleeve; the outer sleeve and the inner sleeve are coaxially arranged, and the telescopic drive component is arranged between them; the telescopic drive component is connected to the controller.

[0056] See Figure 1 and Figure 11 The curved steel lining welding equipment further includes a hydraulic system 9 and an electrical system 10; the sliding drive component 2, the first lifting drive component 6.2, the second lifting drive component 6.3, the first opening and closing drive component 6.6, the second opening and closing drive component 6.9, the third lifting drive component 7.3, the fourth lifting drive component 7.7, the telescopic drive component, the first lateral movement module 7.4, the first walking module 7.5, the second lateral movement module 7.8, and the second walking module 7.9 are all connected to the controller through the hydraulic system 9 and / or the electrical system 10 respectively.

[0057] See Figure 1 and Figure 11 The construction method of the curved steel lining welding equipment includes: Step S1: After the circumferential steel lining A of the straight section in the gas storage chamber is welded, the curved steel lining welding equipment is hoisted into the site to ensure that the support adjustment and walking assembly 7 is placed on the track in the gas storage chamber; the controller is used to start the telescopic drive to drive the telescopic sleeve 8.2 to extend until the third pulley 8.3 contacts the track; the controller is used to start the first walking module 7.5 and the second walking module 7.9 to walk, and then the support adjustment and walking assembly 7 links the main beam 1, the spreading and retracting assembly 3 and the support adjustment assembly 6 to the working position; Step S2: Using the controller, the first opening and closing drive component 6.6 and the second opening and closing drive component 6.9 are activated to drive the first support leg 6.4 and the second support leg 6.7 to open and close to the required working angle, ensuring that the main beam 1 is coaxial with the gas storage chamber; the bottom end of the first support leg 6.4 and the bottom end of the second support leg 6.7 are in contact with the circumferential steel lining of the straight section of the gas storage chamber; Step S3: First, the controller is used to activate the sliding drive 2 to link with the spreading and retracting assembly 3 to spread out. Subsequently, the controller is used to activate the telescopic drive to retract the telescopic sleeve 8.2, providing transportation space for the transport vehicle carrying the steel plate; the hoisting equipment in the gas storage chamber is used to hoist the steel plate to the target area of ​​the support frame 3.3 (such as the work area where the operator determines a suitable place to install the steel plate, such as the bottom of the gas storage chamber), and the operator uses bolts or clamps to fix the steel plate to the target area of ​​the support frame 3.3; Then, the controller synchronously starts the first slewing support 4 and the second slewing support 5, which in turn drive the main beam 1 and the sliding drive component 2, thereby driving the support frame 3.3 to rotate to the next target area. The same steel plate installation method is used to install the steel plates on the corresponding target areas until the steel plates on all target areas of the support frame 3.3 are installed. Among them, a reserved hole is provided in the circumferential area near the hinge end of the support frame 3.3. After installation, each pair of adjacent steel plates is fixed with a clamp. Finally, each pair of adjacent steel plates after fixing is welded together to form a hemispherical end that fits the end of the gas storage chamber. Step S4: Start the first walking module 7.5 and the second walking module 7.9 to walk using the controller. The main beam 1 and the sliding drive component 2 are linked by the support adjustment walking component 7, thereby driving the hemispherical end B on the support frame 3.3 to align with the end ring circumferential steel lining of the straight section. Then, weld the aligned circumferential seam. Step S5: The controller is used to activate the sliding drive 2 to retract the spreading and retracting assembly 3; the controller is used to activate the first opening and closing drive 6.6 and the second opening and closing drive 6.9 to retract the first support leg 6.4 and the second support leg 6.7 respectively; the controller is then used to activate the first lifting drive 6.2 and the second lifting drive 6.3 to retract the first support leg 6.4 and the second support leg 6.7 to be parallel to the axis of the main beam 1 (i.e., to drive the bottom of the first support unit to be flush with its top, and the bottom of the second support unit to be flush with its top); the controller is used to activate the first walking module 7.5 and the second walking module 7.9 to walk, and the support adjustment walking assembly 7 retracts the main beam 1 and the sliding drive 2, thereby driving the spreading and retracting assembly 3 and the support adjustment assembly 6 to be pulled out from the reserved hole; subsequently, the reserved hole is sealed.

[0058] In step S1, a counterweight is set on the support adjustment and walking assembly 7 to ensure the stability of the large-diameter spherical steel lining welding equipment during operation. In step S2, elastic pads (such as rubber pads) are provided at the bottom ends of the first support leg 6.4 and the second support leg 6.7 to prevent the first support leg 6.4 and the second support leg 6.7 from directly contacting the circumferential steel liner and damaging the coating on the inner surface of the steel liner. In step S3, before the welding process, the controller is used to synchronously start the first slewing support 4 and the second slewing support 5 to link the main beam 1 and the sliding drive 2, thereby driving the support frame 3.3 to rotate to the welding area.

[0059] Example 2: Unlike Embodiment 1, in step S4, before aligning the hemispherical end of the support frame 3.3 with the circumferential steel lining of the straight section, the controller is used to simultaneously start the first rotary support 4 and the second rotary support 5 to link the main beam 1 and the sliding drive 2, thereby driving the support frame 3.3 to rotate until the support auxiliary adjustment component 8 is facing the track. Then, the controller is used to start the telescopic drive to drive the telescopic sleeve 8.2 to extend until the third pulley 8.3 contacts the track, so that the support adjustment and walking component 7 can form a combined support with the support auxiliary adjustment component 8, thereby stably linking the hemispherical end with the circumferential steel lining of the straight section. If misalignment occurs when aligning the hemispherical end of the support frame 3.3 with the circumferential steel lining of the straight section, the controller first activates the telescopic drive to retract the telescopic sleeve 8.2. Then, the controller activates the third lifting drive 7.3 and the fourth lifting drive 7.7 to synchronously link the first lateral movement module 7.4 and the second lateral movement module 7.8, forcing the first column 7.2 and the second column 7.6 to link with the main beam 1 to align the hemispherical end of the support frame 3.3 with the circumferential steel lining of the straight section.

[0060] Example 3: Unlike Embodiment 1, in step S5, before extraction, the controller synchronously starts the first slewing support 4 and the second slewing support 5 to link the main beam 1 and the sliding drive 2, thereby driving the support frame 3.3 to rotate until the support auxiliary adjustment component 8 is facing the track. Then, the controller starts the telescopic drive to drive the telescopic sleeve 8.2 to extend until the third pulley 8.3 contacts the track, which facilitates providing stable support for the extraction operation.

[0061] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. All equivalent structural transformations made under the inventive concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the protection scope of the present invention.

Claims

1. A curved steel lining welding equipment, characterized in that, It includes a main beam (1), a sliding drive component (2), an opening and closing assembly (3), a first slewing support (4), a second slewing support (5), a support adjustment assembly (6), and a support adjustment and travel assembly (7). The support adjustment assembly (6) is located below one end of the main beam (1) along its length and is connected to the main beam (1) via the first slewing support (4); the support adjustment walking assembly (7) is located below the other end of the main beam (1) along its length and is connected to the main beam (1) via the second slewing support (5). The expansion and retraction assembly (3) is slidably mounted on the main beam (1) on the same axis. One end of the assembly is an opening and closing end, which is positioned towards the support adjustment assembly (6), while the other end is a hinged end, which is hinged on the main beam (1). The sliding drive component (2) is mounted on the main beam (1), and its drive end is connected to the expansion and retraction assembly (3) for linkage with the expansion and retraction assembly (3) to expand or retract. The support adjustment assembly (6) includes a first slewing connecting frame (6.1), a first support unit, and a second support unit; the first slewing connecting frame (6.1) is connected to the first slewing support (4); the top of the first support unit and the top of the second support unit are both hinged to the first slewing connecting frame (6.1); the first support unit and the second support unit are openable and closable; the first support unit includes a first lifting drive component (6.2) for driving the bottom of the first support unit to be flush with its top; the second support unit includes a second lifting drive component (6.3) for driving the bottom of the second support unit to be flush with its top.

2. The curved steel lining welding equipment as described in claim 1, characterized in that, The expansion and retraction assembly (3) includes a first connecting ring (3.1), a first radial screw (3.2), and a support frame (3.3); the first connecting ring (3.1) is coaxially and slidably disposed on the main beam (1); the first connecting ring (3.1) is connected to the driving end of the sliding drive (2); there are multiple first radial screws (3.2), which are hinged at intervals on the outer periphery of the first connecting ring (3.1); one end of the support frame (3.3) is an opening and closing end, which is disposed towards the support adjustment assembly (6), and the other end is a hinged end, which is hinged on the main beam (1); the end of each first radial screw (3.2) away from the first connecting ring (3.1) is hinged to the opening and closing end of the support frame (3.3).

3. The curved steel lining welding equipment as described in claim 2, characterized in that, The expansion and retraction assembly (3) further includes a second connecting ring (3.4) and a second radial screw (3.5); the second connecting ring (3.4) is coaxially and slidably disposed on the main beam (1) and connected to the first connecting ring (3.1) via a connecting rod; the second connecting ring (3.4) is disposed on the side of the first connecting ring (3.1) away from the sliding drive member (2); there are multiple second radial screws (3.5), which are hinged at intervals on the outer periphery of the second connecting ring (3.4); the end of each second radial screw (3.5) away from the second connecting ring (3.4) is hinged to the support frame (3.3).

4. The curved steel lining welding equipment as described in claim 3, characterized in that, The support frame (3.3) includes multiple support units spaced apart outside the main beam (1), and the number of support units is the same as the number of the first radial screws (3.2) and the number of the second radial screws (3.5); each support unit is arranged in a one-to-one correspondence with each of the first radial screws (3.2); each support unit is arranged in a one-to-one correspondence with each of the second radial screws (3.5).

5. The curved steel lining welding equipment as described in claim 4, characterized in that, The expansion and retraction assembly (3) further includes a first circumferential screw unit (3.6); the first circumferential screw unit (3.6) is circumferentially arranged on the support frame (3.3), and includes multiple first screw units; the first screw units are hinged between each pair of adjacent support units.

6. The curved steel lining welding equipment as described in claim 5, characterized in that, The expansion and retraction assembly (3) further includes a second circumferential screw unit (3.7); the second circumferential screw unit (3.7) is circumferentially arranged on the support frame (3.3) and spaced apart from the first circumferential screw unit (3.6); the second circumferential screw unit (3.7) includes multiple second screw units; the second screw units are hinged between each pair of adjacent support units.

7. The curved steel lining welding equipment as described in claim 6, characterized in that, The expansion and retraction assembly (3) also includes a first pulley; the first pulley is multiple and is spaced apart on the inner ring surface of the first connecting ring (3.1), and slides in contact with the main beam (1); The expansion and retraction assembly (3) also includes a second pulley; there are multiple second pulleys, which are spaced apart on the inner ring surface of the second connecting ring (3.4) and slide in contact with the main beam (1).

8. The curved steel lining welding equipment as described in claim 7, characterized in that, The first support unit further includes a first support leg (6.4), a first connecting seat (6.5), and a first opening / closing drive member (6.6); a first hinge hole, a second hinge hole, a third hinge hole, and a fourth hinge hole are provided on the first connecting seat (6.5); the first connecting seat (6.5) is hinged to the first rotary connecting frame (6.1) through the first hinge hole and the first pin; the first connecting seat (6.5) is hinged to the first support leg (6.4) through the second hinge hole and the second pin; the axis of the second pin is perpendicular to the axis of the first pin; the first connecting seat (6.5) is hinged to the first support leg (6.4) through the first hinge hole and the first pin; the first connecting seat (6.5) is hinged to the first support leg (6.4) through the first hinge hole and the first pin; the first connecting seat (6.5) is hinged to the first support leg (6.4) through the first hinge hole and the first pin; the first connecting leg (6.4) is hinged to the first support leg (6.4) through the first hinge hole and the first pin; the first connecting leg (6.5) is hinged to the first support leg (6.4) through the first hinge hole and the first pin; the first connecting leg (6.4) is hinged to the first support leg (6.4) through the first hinge hole and the first pin; the first connecting leg (6.4) is hinged to the first support leg (6.4) through the first hinge hole and the first pin; the first connecting leg (6.4) is hinged to the first support leg (6.5 ... The third hinge hole and the third pin are hinged to the fixed end of the first opening and closing drive member (6.6); the driving end of the first opening and closing drive member (6.6) is hinged to the first support leg (6.4); the axial direction of the third pin is parallel to the axial direction of the second pin; the first connecting seat (6.5) is hinged to the driving end of the first lifting drive member (6.2) through the fourth hinge hole and the fourth pin; the fixed end of the first lifting drive member (6.2) is hinged to the first rotary connecting frame (6.1); the axial direction of the fourth pin is parallel to the axial direction of the first pin. The second support unit further includes a second support leg (6.7), a second connecting seat (6.8), and a second opening / closing drive component (6.9); a fifth hinge hole, a sixth hinge hole, a seventh hinge hole, and an eighth hinge hole are provided on the second connecting seat (6.8); the second connecting seat (6.8) is hinged to the first rotary connecting frame (6.1) through the fifth hinge hole and the fifth pin; the second connecting seat (6.8) is hinged to the second support leg (6.7) through the sixth hinge hole and the sixth pin; the axial direction of the sixth pin is perpendicular to the axial direction of the fifth pin; the second connecting seat (6.8) is hinged to the first rotary connecting frame (6.1) through the fifth hinge hole and the fifth pin. The seventh hinge hole and the seventh pin are hinged to the fixed end of the second opening and closing drive member (6.9); the driving end of the second opening and closing drive member (6.9) is hinged to the second support leg (6.7); the axial direction of the seventh pin is parallel to the axial direction of the sixth pin; the second connecting seat (6.8) is hinged to the driving end of the second lifting drive member (6.3) through the eighth hinge hole and the eighth pin; the fixed end of the second lifting drive member (6.3) is hinged to the first rotary connecting frame (6.1); the axial direction of the eighth pin is parallel to the axial direction of the fifth pin.

9. The curved steel lining welding equipment as described in claim 8, characterized in that, It also includes a controller; the controller is disposed on the support adjustment walking assembly (7); the sliding drive (2), the first slewing support (4), the second slewing support (5), the first opening and closing drive (6.6), the second opening and closing drive (6.9) and the support adjustment walking assembly (7) are all connected to the controller.

10. The curved steel lining welding equipment as described in claim 9, characterized in that, The support adjustment and walking assembly (7) includes a second rotary connecting frame (7.1), a first support adjustment and walking unit, and a second support adjustment and walking unit; the top of the first support adjustment and walking unit and the top of the second support adjustment and walking unit are both connected to the second rotary support (5) through the second rotary connecting frame (7.1); The first support adjustment walking unit includes a first column (7.2), a third lifting drive (7.3), a first lateral movement module (7.4), and a first walking module (7.5); the top end of the first column (7.2) is connected to the second rotary connecting frame (7.1), and the bottom end is connected to the first walking module (7.5); the first lateral movement module (7.4) is sleeved on the first column (7.2) and located above the first walking module (7.5); the first lateral movement module (7.4) and the first column (7.2) are connected by the third lifting drive (7.3); the third lifting drive (7.3), the first lateral movement module (7.4), and the first walking module (7.5) are all connected to the controller; The second support adjustment walking unit includes a second column (7.6), a fourth lifting drive (7.7), a second lateral movement module (7.8), and a second walking module (7.9); the top end of the second column (7.6) is connected to the second rotary connecting frame (7.1), and the bottom end is connected to the second walking module (7.9); the second lateral movement module (7.8) is sleeved on the second column (7.6) and located above the second walking module (7.9); the second lateral movement module (7.8) and the second column (7.6) are connected by the fourth lifting drive (7.7); the fourth lifting drive (7.7), the second lateral movement module (7.8), and the second walking module (7.9) are all connected to the controller.

11. The curved steel lining welding equipment as described in claim 10, characterized in that, The first lateral movement module (7.4) includes a first sliding seat (7.4.1), a first lateral movement cylinder (7.4.2), and a first base (7.4.3); the first sliding seat (7.4.1) is sleeved on the first column (7.2) and located above the first walking module (7.5); the first sliding seat (7.4.1) and the first column (7.2) are connected by the third lifting drive (7.3); the first base (7.4.3) is located below the first sliding seat (7.4.1), and the two are laterally slidably connected; one end of the first lateral movement cylinder (7.4.2) is connected to the first base (7.4.3), and the other end is connected to the first sliding seat (7.4.1); the first lateral movement cylinder (7.4.2) is connected to the controller; The first walking module (7.5) includes a third connecting seat (7.5.1), a first fixed seat (7.5.2), a first walking drive component (7.5.3), and a first walking wheel (7.5.4); the third connecting seat (7.5.1) is disposed on the first fixed seat (7.5.2), and its top is connected to the first column (7.2); the first walking drive component (7.5.3) is disposed on the first fixed seat (7.5.2), and its output end is connected to the first walking wheel (7.5.4) via a chain; the first walking wheel (7.5.4) is connected to the first fixed seat (7.5.2) via a connecting shaft; the first walking drive component (7.5.3) is connected to the controller; The second lateral movement module (7.8) includes a second sliding seat, a second lateral movement cylinder, and a second base; the second sliding seat is sleeved on the second column (7.6) and located above the second walking module; the second sliding seat and the second column (7.6) are connected by the fourth lifting drive (7.7); the second base is located below the second sliding seat, and the two are laterally slidably connected; one end of the second lateral movement cylinder is connected to the second base, and the other end is connected to the second sliding seat; the second lateral movement cylinder is connected to the controller. The second walking module (7.9) includes a fourth connecting seat, a second fixed seat, a second walking drive component, and a second walking wheel; the fourth connecting seat is disposed on the second fixed seat, and its top is connected to the second column (7.6); the second walking drive component is disposed on the second fixed seat, and its output end is connected to the second walking wheel via a chain; the second walking wheel is connected to the second fixed seat via a connecting shaft; The second walking drive component is connected to the controller.

12. The curved steel lining welding equipment as described in claim 10, characterized in that, It also includes a support auxiliary adjustment component (8); the support auxiliary adjustment component (8) is disposed between the expansion and retraction component (3) and the support adjustment and walking component (7), and includes a support beam (8.1), a telescopic sleeve (8.2) and a third pulley (8.3); the support beam (8.1) is connected to the main beam (1); the telescopic sleeve (8.2) is respectively disposed at both ends of the support beam (8.1); the third pulley (8.3) is disposed at the end of each telescopic sleeve (8.2) away from the support beam (8.1); the distance between the two third pulleys (8.3) is equal to the distance between the first walking module (7.5) and the second walking module (7.9); Each of the telescopic sleeves (8.2) includes a telescopic drive component, an outer sleeve, and an inner sleeve; the outer sleeve and the inner sleeve are coaxially arranged, and the telescopic drive component is arranged between them; the telescopic drive component is connected to the controller.

13. A construction method using the curved steel lining welding equipment as described in claim 12, characterized in that, include: Step S1: After the circumferential steel lining of the straight section in the gas storage chamber is welded, the curved steel lining welding equipment is hoisted into the site to ensure that the support adjustment walking assembly (7) is placed on the track in the gas storage chamber; the controller is used to start the telescopic drive to drive the telescopic sleeve (8.2) to extend until the third pulley (8.3) contacts the track; the controller is used to start the first walking module (7.5) and the second walking module (7.9) to walk, and then the support adjustment walking assembly (7) links the main beam (1), the expansion and retraction assembly (3) and the support adjustment assembly (6) to the working position; Step S2: The controller is used to start the first opening and closing drive (6.6) and the second opening and closing drive (6.9) to respectively link the first support leg (6.4) and the second support leg (6.7) to open and close to the required working angle, ensuring that the main beam (1) is coaxial with the gas storage chamber; the bottom end of the first support leg (6.4) and the bottom end of the second support leg (6.7) are in contact with the circumferential steel lining of the straight section of the gas storage chamber; Step S3: First, the controller is used to start the sliding drive (2) to link with the spreading and retracting assembly (3) to spread out; Subsequently, the telescopic drive component is activated by the controller to retract the telescopic sleeve (8.2) to provide transportation space for the transport vehicle carrying the steel plate; the hoisting equipment in the gas storage chamber is used to hoist the steel plate to the target area of ​​the support frame (3.3), and the operators use bolts or clamps to fix the steel plate to the target area of ​​the support frame (3.3); Then, the controller is used to synchronously start the first slewing support (4) and the second slewing support (5) to link the main beam (1) and the sliding drive (2), thereby driving the support frame (3.3) to rotate to the next target area. The same steel plate installation method is used to install the steel plate on the corresponding target area until the steel plate installation on all target areas of the support frame (3.3) is completed. Among them, a reserved hole is set in the circumferential area near the hinge end of the support frame (3.3). After installation, each pair of adjacent steel plates is fixed with a bracket. Finally, each pair of adjacent steel plates after fixing is welded together to form a hemispherical end that fits the end of the gas storage chamber. Step S4: Start the first walking module (7.5) and the second walking module (7.9) to walk using the controller. The main beam (1) and the sliding drive component (2) are linked by the support adjustment walking component (7), thereby driving the hemispherical end on the support frame (3.3) to align with the end ring circumferential steel lining of the straight section. Then, weld the aligned circumferential seam. Step S5: The controller is used to start the sliding drive (2) to link the opening and closing assembly (3) to close; the controller is used to start the first opening and closing drive (6.6) and the second opening and closing drive (6.9) to link the first support leg (6.4) and the second support leg (6.7) to merge, and the controller is used to start the first lifting drive (6.2) and the second lifting drive (6.3) to link the first support leg (6.4) and the second support leg (6.7) to be parallel to the axis of the main beam (1); the controller is used to start the first walking module (7.5) and the second walking module (7.9) to walk, and the support adjustment walking assembly (7) links the main beam (1) and the sliding drive (2), thereby driving the opening and closing assembly (3) and the support adjustment assembly (6) to be pulled out from the reserved hole; then, the reserved hole is sealed.

14. The construction method of the curved steel lining welding equipment as described in claim 13, characterized in that, Also includes: In step S1, a counterweight is provided on the support adjustment walking assembly (7); In step S2, elastic pads are provided at the bottom ends of the first support leg (6.4) and the second support leg (6.7).

15. The construction method of the curved steel lining welding equipment as described in claim 13, characterized in that, Also includes: In step S3, before the welding process, the controller is used to synchronously start the first slewing support (4) and the second slewing support (5) to link the main beam (1) and the sliding drive (2), thereby driving the support frame (3.3) to rotate to the welding area.

16. The construction method of the curved steel lining welding equipment as described in claim 13, characterized in that, Also includes: In step S4, before aligning the hemispherical end of the support frame (3.3) with the circumferential steel lining of the straight section, the controller is used to simultaneously start the first slewing support (4) and the second slewing support (5) to link the main beam (1) and the sliding drive (2), thereby driving the support frame (3.3) to rotate until the support auxiliary adjustment component (8) is facing the track. Then, the controller is used to start the telescopic drive to drive the telescopic sleeve (8.2) to extend until the third pulley (8.3) contacts the track. If misalignment occurs when the hemispherical end of the support frame (3.3) is aligned with the circumferential steel lining of the straight section, the controller first activates the telescopic drive to retract the telescopic sleeve (8.2), and then the controller activates the third lifting drive (7.3) and the fourth lifting drive (7.7) to synchronously link the first transverse module (7.4) and the second transverse module (7.8), forcing the first column (7.2) and the second column (7.6) to link with the main beam (1) to align the hemispherical end of the support frame (3.3) with the circumferential steel lining of the straight section.

17. The construction method of the curved steel lining welding equipment as described in claim 13, characterized in that, Also includes: In step S5, before extraction, the controller synchronously starts the first slewing support (4) and the second slewing support (5) to link the main beam (1) and the sliding drive (2), thereby driving the support frame (3.3) to rotate until the support auxiliary adjustment component (8) is facing the track. Then, the controller starts the telescopic drive to drive the telescopic sleeve (8.2) to extend until the third pulley (8.3) contacts the track.

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