Portal steel frame mounting process

Abstract

The invention discloses a door-type steel frame mounting process which comprises the following specific steps: S1, clamping a single component through two clamping mechanisms of a hoisting device; s2, the clamped component is driven to move to the top of the required mounting position through hoisting of the bearing fixing base; s3, a first bearing driving part drives a bearing mounting seat to vertically rotate to be matched with a second bearing driving part to drive a bearing rotating seat to horizontally rotate, so that the hoisting part is rotated to a required angle position; s4, the bearing fixing seat is lowered, so that the hoisting part is moved to the required mounting position; s5, fixing of the two clamping mechanisms to the hoisted part is relieved, and the position where the hoisted part is located is stably fixed through bolts or welding; and S6, the steps from S1 to S5 are repeated, hoisting installation of all the components is achieved in sequence, and finally installation of the portal frame is achieved. The hoisting device has the effects that the stability of a single component during hoisting to the mounting position is conveniently guaranteed, and the mounting efficiency of the portal frame is improved.

Description

Technical Field

[0001] The invention relates to the field of steel frame installation, and in particular to a portal steel frame installation process. Background Art

[0002] Portal steel frame is a traditional structural system with the characteristics of simple and clear force, quick component manufacturing, and strong and durable structure. It is widely used in various industrial and civil buildings, such as single-story industrial factories, supermarkets, exhibition halls, warehouses, and various types of warehousing-style industrial and civil buildings.

[0003] The lower main frame of the portal steel frame is generally connected by beams and columns to adjust the size of the positioning space structure. The upper main frame mainly includes rigid frame diagonal beams, rigid frame columns, supports, purlins, tie rods, and other components. During the installation process of the portal steel frame, it is usually necessary to lift each component and then install it in position. The various components that make up the portal steel frame are usually bar-shaped components. The operation of lifting each component is usually to directly lift the component through two clamps.

[0004] Since the installation positions and methods of various components are different, and the method of directly lifting the components using two clamps is not convenient for ensuring the stability of a single component when it is lifted to the installation position, when installing a portal steel frame, a single component is usually lifted to the installation position and the installation angle of the installed component needs to be repeatedly manually corrected, resulting in low installation efficiency of the portal steel frame. Summary of the invention

[0005] In order to ensure the stability of a single component when it is hoisted to the installation location and improve the installation efficiency of the portal steel frame, the present application provides a portal steel frame installation process.

[0006] The portal steel frame installation process provided in this application adopts the following technical solution: A gantry steel frame installation process, including the following specific steps: S1, clamping a single component by two clamping mechanisms of a lifting device, the lifting device including a bearing mechanism and a clamping mechanism, the bearing mechanism including a bearing fixed seat, a bearing mounting seat and a bearing rotating seat, the bearing fixed seat is provided with a first bearing driving member for driving the bearing mounting seat to rotate vertically, the bearing mounting seat is provided with a second bearing driving member for driving the bearing rotating seat to rotate horizontally; the clamping mechanism is provided with two groups on the bearing rotating seat, the clamping mechanism includes a clamping claw and a clamping driving assembly, the clamping claw is provided with two groups, and the clamping driving assembly is used to drive the two clamping claws to rotate toward Move in the direction of approaching or moving away from each other; S2, drive the clamped component to move to the top of the desired installation position by lifting the bearing fixed seat; S3, drive the bearing mounting seat to rotate vertically by the first bearing driving member and drive the bearing rotating seat to rotate horizontally by the second bearing driving member to rotate the lifting component to the desired angle position; S4, lower the bearing fixed seat to move the lifting component to the desired installation position; S5, release the fixation of the lifting component on the two clamping mechanisms and achieve a firm fixation of the position of the component after lifting by bolts or welding; S6, repeat steps S1 to S5, realize the lifting and installation of each component in turn, so as to finally realize the installation of the portal steel frame.

[0007] By adopting the above technical scheme, during the installation process of various components of the portal steel frame, after the individual components are clamped and fixed by the lifting mechanism, the individual components constituting the portal steel frame can be stably lifted to the installation position by lifting the load-bearing fixed seat and rotating the load-bearing installation seat and the load-bearing rotating seat, which is beneficial to improving the installation efficiency of the portal steel frame. The provision of two sets of clamping mechanisms is beneficial to fully ensuring the stability of the individual components constituting the portal steel frame during lifting.

[0008] Optionally, the first bearing driving component includes a bearing cylinder and a bearing connecting rod, the bearing cylinder is vertically fixedly installed on the bottom of the bearing fixing seat, the bearing mounting seat is rotatably installed on the bearing fixing seat, the bearing connecting rod is fixedly installed on the bearing mounting seat, the bearing connecting rod is provided with a bearing slide groove extending along its own length direction, and a bearing slider is fixedly installed on the output end of the bearing cylinder, and the bearing slider slides in the bearing slide groove.

[0009] By adopting the above technical solution, when the load-bearing cylinder drives its own output end to rotate, the load-bearing slider drives the load-bearing mounting seat to rotate by moving in the load-bearing slide groove. The setting of the load-bearing cylinder makes the rotation of the load-bearing mounting seat convenient and fast.

[0010] Optionally, the load-bearing sliding block is rotatably mounted with a load-bearing roller, and the load-bearing roller is rollingly engaged with the load-bearing sliding groove.

[0011] By adopting the above technical solution, the setting of the load-bearing roller is conducive to reducing the friction between the load-bearing cylinder and the load-bearing connecting rod when the load-bearing cylinder drives the load-bearing connecting rod, thereby further ensuring the smoothness and stability of the load-bearing connecting rod when the load-bearing cylinder drives the load-bearing connecting rod to move.

[0012] Optionally, the bearing mounting seat is fixedly mounted with two sets of positioning bars, and when one side of the bearing mounting seat abuts against one set of positioning bars, the bearing mounting seat is in a horizontal state, and when the other side of the bearing mounting seat abuts against the other set of positioning bars, the bearing mounting seat is in a vertical state.

[0013] By adopting the above technical solution, the two sets of positioning levers play a role in positioning the load-bearing mounting seat when it rotates, thereby facilitating and facilitating fully ensuring the stability of the position of the load-bearing mounting seat when it rotates to a horizontal state and a vertical state.

[0014] Optionally, the second bearing driving component includes a bearing worm wheel, a bearing worm and a bearing motor. The bearing rotating seat is rotatably mounted on the bearing mounting seat via a rotating shaft. The bearing worm wheel is coaxially fixedly mounted on the rotating shaft of the bearing rotating seat. The bearing worm is rotatably mounted on the bearing mounting seat and meshes with the bearing worm wheel. The bearing motor is used to drive the bearing worm to rotate.

[0015] By adopting the above technical solution, when the load-bearing motor drives the load-bearing worm to rotate, it drives the load-bearing worm wheel and the load-bearing rotating seat to rotate together. The self-locking effect between the load-bearing worm wheel and the load-bearing worm is conducive to ensuring the stability of the position of the load-bearing rotating seat after rotation.

[0016] Optionally, the clamping mechanism also includes a clamping fixed seat and a clamping mounting seat, the clamping fixed seat is installed on the load-bearing rotating seat, and the clamping mounting seat is rotatably installed on the side of the clamping fixed seat away from the load-bearing rotating seat. The clamping drive assembly includes a first clamping drive component and a second clamping drive component, the first clamping drive component is used to drive the clamping mounting seat to rotate, and the second clamping drive component is used to drive the two jaws to move in a direction closer to or away from each other.

[0017] By adopting the above technical solution, the first clamping drive member drives the clamping mounting seat to rotate and cooperates with the second clamping drive member to drive the movement of the two clamping jaws, so that the two clamping jaws can clamp and fix a single component at different angles. It has strong applicability and is convenient for quickly clamping a single component.

[0018] Optionally, the first clamping drive member includes a first motor, the first motor is mounted on a clamping fixing seat, the output end of the first motor passes through and rotatably engages with the clamping fixing seat, and the clamping mounting seat is coaxially fixedly mounted on the output end of the first motor.

[0019] By adopting the above technical solution, when the first motor drives its own output end to rotate, the clamping mount rotates around its own axis together. The setting of the first motor makes the movement of the clamping mount around its own axis convenient and fast.

[0020] Optionally, the second clamping driving member includes a second motor, a clamping rotating wheel, a first connecting rod and a second connecting rod. The clamping rotating wheel is rotatably mounted on the clamping mounting seat. The second motor is mounted on one side of the clamping mounting seat in the horizontal direction and is used to drive the clamping rotating wheel to rotate. One end of the first connecting rod is rotatably mounted on the clamping rotating wheel, and the other end is rotatably mounted on one of the clamping jaws. One end of the second connecting rod is rotatably mounted on the clamping rotating wheel, and the other end is rotatably mounted on the other clamping jaw. Both clamping jaws are slidably fitted on the clamping mounting seat.

[0021] By adopting the above technical solution, when the second motor drives the clamping rotating wheel to rotate, the first connecting rod and the second connecting rod drive the two jaws to move in the direction of approaching or moving away from each other, so that the two jaws can clamp or not clamp a single component. The second motor is located on the horizontal side of the clamping mounting seat, which makes it difficult for the second motor to interfere with the first clamping driving component, which is beneficial to ensure the stability of the second motor when driving the two jaws to move in the direction of approaching or moving away from each other.

[0022] Optionally, the clamping jaws include a clamping sliding portion and a clamping pressing portion, and the clamping mounting seat is fixedly installed with a clamping limiting portion, the clamping limiting portion is passed through the clamping sliding portions of the two clamping jaws and slidably cooperates with the clamping sliding portions, and the clamping pressing portions of the two clamping jaws are respectively fixedly installed on the side directly opposite to the two clamping sliding portions and are arranged close to the bottom of the clamping sliding portions.

[0023] By adopting the above technical scheme, the sliding cooperation between the clamping limit part and the clamping sliding part is conducive to ensuring the stability of the two jaws when they move towards or away from each other, and the setting of the clamping pressure part is convenient for further limiting the rod-shaped component when it is clamped and fixed, which is conducive to further ensuring the stability of the rod-shaped component when it is clamped and fixed.

[0024] Optionally, the bearing rotating seat is provided with a clamping moving part for driving the two groups of clamping mechanisms to move towards or away from each other, the clamping moving part includes a motion motor and a bidirectional screw, the bidirectional screw is rotatably installed on the bearing rotating seat, the two sections of the bidirectional screw with opposite thread rotation directions are respectively passed through and threadedly engaged with two clamping fixed seats, the two clamping fixed seats are both slidably engaged with the bearing rotating seat, the motion motor is installed on the bearing rotating seat and is used to drive the bidirectional screw to rotate.

[0025] By adopting the above technical scheme, when the motion motor drives the bidirectional lead screw to rotate, the two clamping fixed seats cooperate with the threads of the bidirectional lead screw and move towards or away from each other under the limiting action of the load-bearing rotating seat. On the one hand, it is convenient for the two groups of jaws to achieve stable clamping of workpieces of different lengths. On the other hand, it is convenient to adjust the position of the component by adjusting the clamping position differently and clamping the component by the two groups of jaws in turn, which is conducive to adapting to different installation conditions and has strong applicability.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By lifting the bearing fixed seat and rotating the bearing mounting seat and the bearing rotating seat, the individual components constituting the portal steel frame can be stably lifted to the installation position, which is beneficial to improving the installation efficiency of the portal steel frame. The setting of the two sets of clamping mechanisms is beneficial to fully ensure the stability of the individual components constituting the portal steel frame during lifting.

[0027] 2. The two sets of positioning bars play a role in positioning the load-bearing mounting seat when it rotates, thereby facilitating and facilitating fully ensuring the stability of the position of the load-bearing mounting seat when it rotates to a horizontal state and a vertical state.

[0028] 3. The first clamping drive member drives the clamping mounting seat to rotate and cooperates with the second clamping drive member to drive the movement of the two clamping jaws, so that the two clamping jaws can clamp and fix a single component at different angles. It has strong applicability and is convenient for quickly clamping a single component. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 2 It is a schematic diagram of the internal structure of the protective shell in the embodiment of the present application.

[0031] Figure 3 It is a partial cross-sectional schematic diagram of the load-bearing rotating seat in the embodiment of the present application.

[0032] Figure 4 It is a schematic diagram of the main structure of the clamping mechanism in the embodiment of the present application.

[0033] Description of reference numerals: 1. Load-bearing fixed seat; 101. Load-bearing fixed plate; 102. Load-bearing mounting plate; 2. Load-bearing mounting seat; 3. Load-bearing rotating seat; 4. Load-bearing cylinder; 5. Load-bearing connecting rod; 6. Load-bearing slider; 7. Load-bearing roller; 8. Load-bearing slide groove; 9. Positioning stop rod; 10. Buffer pad; 11. Load-bearing worm gear; 12. Load-bearing worm; 13. Load-bearing motor; 14. Protective shell; 15. Clamping claw; 151. Clamping sliding part; 152. Clamping pressing part; 16. Clamping fixed seat; 17. Clamping mounting seat; 18. Motion motor; 19. Bidirectional screw; 20. Clamping movable groove; 21. First motor; 22. Second motor; 23. Clamping rotating wheel; 24. First connecting rod; 25. Second connecting rod; 26. Clamping limit part. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] The embodiment of the present application discloses a portal steel frame installation process. The portal steel frame installation process includes the following specific steps: S1, clamping a single component by two clamping mechanisms of a lifting device, specifically, referring to Figure 1 The lifting device includes a bearing mechanism and a clamping mechanism, wherein the bearing mechanism includes a bearing fixed seat 1, a bearing mounting seat 2 and a bearing rotating seat 3, the bearing fixed seat 1 includes a bearing fixed plate 101 and a bearing mounting plate 102, the top of the bearing fixed plate 101 is lifted by a lifting rope, and the bearing mounting plate 102 is fixedly installed at the bottom of the bearing fixed plate 101.

[0036] Continue to refer to Figure 1 The fixed seat is provided with a first bearing driving member, specifically, the first bearing driving member includes a bearing cylinder 4 and a bearing connecting rod 5, the bearing cylinder 4 is vertically fixedly installed at the bottom of the bearing fixing plate 101, the output end of the bearing cylinder 4 is fixedly installed with a bearing slider 6, and the bearing slider 6 is rotatably installed with a bearing roller 7. The bearing mounting seat 2 is rotatably installed on the bearing mounting plate 102 through a horizontally arranged rotating shaft, and the bearing connecting rod 5 is fixedly installed on the bearing mounting seat 2. The bearing connecting rod 5 is in a long strip shape, and the bearing connecting rod 5 is provided with a bearing slide groove 8 that runs horizontally and extends along its own length direction. The bearing roller 7 rolls in the bearing slide groove 8, so that when the bearing cylinder 4 drives its own output end to rotate, the bearing roller 7 rolls in the bearing slide groove 8 to drive the bearing mounting seat 2 to rotate. The setting of the bearing cylinder 4 makes the rotation of the bearing mounting seat 2 convenient and fast, and the setting of the bearing roller 7 is conducive to reducing the friction between the bearing slider 6 and the bearing connecting rod 5, which is conducive to further ensuring the smoothness and stability of the bearing cylinder 4 when driving the bearing connecting rod 5 to move.

[0037] Continue to refer to Figure 1In order to ensure the stability of the bearing mounting seat 2 when it rotates to the horizontal state and the vertical state, the bearing mounting plate 102 is provided with two groups of positioning bars 9, one group of which has two vertical positioning bars 9 and the other group of which has one horizontal positioning bar 9. A buffer pad 10 is fixedly installed on the side of each positioning bar 9 facing the bearing mounting seat 2. In the embodiment of the present application, the material of the buffer pad 10 is selected as rubber, so that the bearing mounting seat 2 is not easy to be damaged by collision with the positioning bar 9. When the bearing mounting seat 2 rotates to the horizontal state, the top of the bearing mounting seat 2 contacts the buffer pad 10 of the two vertically arranged positioning bars 9. When the bearing mounting seat 2 rotates to the vertical state, the horizontal side of the bearing mounting seat 2 contacts the buffer pad 10 of the horizontally arranged positioning bar 9, so that the two groups of positioning bars 9 play a role in positioning the bearing mounting seat 2 when it rotates.

[0038] Reference Figure 1 and Figure 2 In the embodiment of the present application, the bearing rotating seat 3 is in the shape of a rectangular plate. The bearing rotating seat 3 is rotatably mounted on the bearing mounting seat 2 through a rotating shaft and is located on the side of the bearing mounting seat 2 away from the bearing mounting plate 102. The second bearing driving member includes a bearing worm wheel 11, a bearing worm 12 and a bearing motor 13, wherein the bearing worm wheel 11 is coaxially fixedly mounted on the rotating shaft of the bearing rotating seat 3, the bearing worm 12 is rotatably mounted on the bearing mounting seat 2 and meshes with the bearing worm wheel 11, and the bearing motor 13 is mounted on the bearing rotating seat 3 and is used to drive the bearing worm 12 to rotate, so that when the bearing motor 13 drives the bearing worm 12 to rotate, the bearing worm wheel 11 drives the bearing rotating seat 3 to rotate together, and the self-locking effect between the bearing worm wheel 11 and the bearing worm 12 is conducive to ensuring the stability of the position of the bearing rotating seat 3 after rotation. The bearing mounting seat 2 is equipped with a protective shell 14 that covers the bearing motor 13, the bearing worm wheel 11 and the bearing worm 12, so as to further ensure the stability of the bearing motor 13 when driving the bearing rotating seat 3 to rotate.

[0039] Reference Figure 2 and Figure 3 The clamping mechanism is provided with two groups on the bearing rotating seat 3, and the bearing rotating seat 3 is provided with a clamping moving part for driving the two groups of clamping mechanisms to move toward or away from each other. Specifically, the clamping mechanism includes a clamping claw 15, a clamping driving assembly, a clamping fixed seat 16, and a clamping mounting seat 17, and the clamping moving part includes a moving motor 18 and a bidirectional screw rod 19, wherein the bidirectional screw rod 19 is provided along the length direction of the bearing rotating seat 3 and is rotatably mounted on the bearing rotating seat 3, and the moving motor 18 is installed on one side of the length direction of the bearing rotating seat 3 and is used to drive the bidirectional screw rod 19 to rotate.

[0040] Continue to refer to Figure 2 and Figure 3The bottom of the bearing rotating seat 3 is provided with a clamping movable groove 20 extending along its own length. The tops of the clamping fixed seats 16 of the two clamping mechanisms are slidably matched in the clamping movable groove 20. The cross section of the clamping movable groove 20 is T-shaped to ensure the stability of the clamping fixed seat 16 when sliding in the clamping movable groove 20. The two sections of the two-way screw 19 with opposite thread rotation directions are respectively penetrated and threadedly matched with the two clamping fixed seats 16, so that when the motion motor 18 drives the two-way screw 19 to rotate, the two clamping fixed seats 16 move in the direction of approaching or moving away from each other due to the thread matching with the two-way screw 19 and the limiting action of the clamping movable groove 20, which is convenient and stable.

[0041] Reference Figure 3 and Figure 4 The clamping mounting seat 17 is rotatably mounted on the side of the clamping fixing seat 16 away from the bearing rotating seat 3 through the rotating shaft. The clamping driving assembly includes a first clamping driving member and a second clamping driving member, wherein the first clamping driving member includes a first motor 21, the first motor 21 is mounted on the clamping fixing seat 16, and the rotating shaft of the clamping mounting seat 17 is coaxially fixedly mounted on the output end of the first motor 21, so that the first motor 21 drives the clamping mounting seat 17 to rotate around its own axis.

[0042] Continue to refer to Figure 3 and Figure 4 The second clamping driving component includes a second motor 22, a clamping rotating wheel 23, a first connecting rod 24 and a second connecting rod 25, wherein the clamping rotating wheel 23 is rotatably mounted on the clamping mounting seat 17, the axis of the rotating shaft of the clamping rotating wheel 23 is perpendicular to the axis of the rotating shaft of the clamping mounting seat 17, the second motor 22 is mounted on one side of the clamping mounting seat 17 in the horizontal direction, and the clamping rotating wheel 23 is fixedly mounted on the output end of the second motor 22, so that the second motor 22 drives the clamping rotating wheel 23 to rotate.

[0043] Continue to refer to Figure 3 and Figure 4There are two clamping jaws 15 facing the single clamping mounting seat 17. Specifically, the clamping jaw 15 includes a clamping sliding portion 151 and a clamping pressing portion 152, wherein the clamping mounting seat 17 is fixedly mounted with a clamping limiting portion 26, and the clamping limiting portion 26 is penetrated through the clamping sliding portions 151 of the two clamping jaws 15 and slidingly cooperates with the clamping sliding portions 151, so that the clamping jaws 15 can stably slide and cooperate with the clamping mounting seat 17. One end of the first connecting rod 24 is rotatably mounted on the clamping rotating wheel 23, and the other end is rotatably mounted on the clamping sliding portion 151 of one of the clamping jaws 15. One end of the second connecting rod 25 is rotatably mounted on the clamping rotating wheel 23, and the other end is rotatably mounted on the clamping sliding portion 151 of the other clamping jaw 15, so that when the second motor 22 drives the clamping rotating wheel 23 to rotate, the first connecting rod 24 and the second connecting rod 25 drive the two clamping jaws 15 to move in a direction close to or away from each other, so that the two clamping jaws 15 can clamp or not clamp a single component. The second motor 22 and the first motor 21 are respectively located at different positions of the clamping mounting seat 17, so that the first motor 21 is not easy to interfere with the second motor 22, which is conducive to ensuring the stability of the first motor 21 and the second motor 22 during operation.

[0044] Reference Figure 2 and Figure 4 The clamping and pressing parts 152 of the two clamping jaws 15 are respectively fixedly installed on the side opposite to the two clamping sliding parts 151 and are arranged close to the bottom of the clamping sliding part 151, so as to further limit the rod-shaped components such as I-beams when they are clamped and fixed, which is beneficial to further ensure the stability of the rod-shaped components such as I-beams when they are clamped and fixed.

[0045] S2, driving the clamped component to move to the top of the desired installation position by lifting the bearing fixing seat 1; specifically, lifting the bearing fixing plate 101 on the top of the bearing fixing seat 1 by a lifting rope, thereby driving the clamped component to move to the top of the desired installation position.

[0046] S3, the first bearing driving component drives the bearing mounting seat 2 to rotate vertically, and the second bearing driving component drives the bearing rotating seat 3 to rotate horizontally to rotate the lifting component to rotate the lifting component to the desired angle position; specifically, the bearing mounting seat 2 is driven to rotate by the bearing cylinder 4 and the bearing motor 13 is driven to rotate the bearing rotating seat 3 to achieve the angle adjustment of the lifting component.

[0047] S4, lowering the bearing fixing seat 1 so that the lifting component moves to the required installation position.

[0048] S5, releasing the fixation of the lifting component by the two clamping mechanisms and firmly fixing the position of the lifted component by bolts or welding; specifically, the second motor 22 drives the two clamping jaws 15 in a direction away from each other to release the fixation of the lifting component.

[0049] S6, repeating steps S1 to S5, and sequentially lifting and installing each component, thereby finally installing the portal steel frame.

[0050] The implementation principle of a portal steel frame installation process in an embodiment of the present application is as follows: during the installation of the various components of the portal steel frame, after the single component is clamped and fixed by the two sets of jaws 15 of the lifting mechanism, the single component constituting the portal steel frame can be stably lifted to the installation position by lifting the bearing fixing seat 1 and rotating the bearing mounting seat 2 and the bearing rotating seat 3, which is beneficial to improving the installation efficiency of the portal steel frame. The clamping and fixing of the single component by the two sets of jaws 15 is beneficial to fully ensuring the stability of the single component constituting the portal steel frame during lifting.

[0051] In addition, when clamping and fixing rod-shaped components such as I-beams, the first motor 21 drives the clamping mounting seat 17 to rotate, which makes it easy for one group of jaws 15 to quickly clamp and fix the rod-shaped components at different angles. It has strong applicability. After the two groups of jaws 15 clamp and fix the I-beam, when the I-beam needs to be tilted or installed vertically, the motion motor 18 drives the rotation of the bidirectional screw rod 19 to make the two groups of jaws 15 move toward or away from each other, and the two groups of jaws 15 clamp and release the I-beam in turn, which facilitates the stable transportation of the I-beam at the specified position.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A portal steel frame installation process, characterized in that: The method comprises the following specific steps: S1, clamping a single component by two clamping mechanisms of a lifting device, wherein the lifting device comprises a bearing mechanism and a clamping mechanism, wherein the bearing mechanism comprises a bearing fixed seat (1), a bearing mounting seat (2) and a bearing rotating seat (3), wherein the bearing fixed seat (1) is provided with a first bearing driving member for driving the bearing mounting seat (2) to rotate vertically, and the bearing mounting seat (2) is provided with a second bearing driving member for driving the bearing rotating seat (3) to rotate horizontally; The clamping mechanism is provided with two groups on the bearing rotating seat (3), and the clamping mechanism comprises a clamping claw (15) and a clamping drive assembly, and two clamping claws (15) are provided opposite to each other, and the clamping drive assembly is used to drive the two clamping claws (15) to move in a direction of approaching or moving away from each other; S2, by lifting the bearing fixing seat (1), the clamped component is moved to the top of the desired installation position; S3, driving the bearing mounting seat (2) to rotate vertically by the first bearing driving member and cooperating with the second bearing driving member to drive the bearing rotating seat (3) to rotate horizontally to rotate the lifting component to a desired angle position; S4, lowering the load-bearing fixing seat (1) so that the lifting component moves to a desired installation position; S5, releasing the fixation of the lifting component by the two clamping mechanisms and firmly fixing the position of the lifted component by bolts or welding; S6, repeating steps S1 to S5, and sequentially lifting and installing each component, thereby finally installing the portal steel frame.

2. A portal steel frame installation process according to claim 1, characterized in that: The first bearing driving member comprises a bearing cylinder (4) and a bearing connecting rod (5); the bearing cylinder (4) is vertically fixedly mounted on the bottom of the bearing fixing seat (1); the bearing mounting seat (2) is rotatably mounted on the bearing fixing seat (1); the bearing connecting rod (5) is fixedly mounted on the bearing mounting seat (2); the bearing connecting rod (5) is provided with a bearing slide groove (8) extending along its length direction; a bearing slider (6) is fixedly mounted on the output end of the bearing cylinder (4); and the bearing slider (6) is slidably engaged in the bearing slide groove (8).

3. A portal steel frame installation process according to claim 2, characterized in that: The load-bearing sliding block (6) is rotatably mounted with a load-bearing roller (7), and the load-bearing roller (7) is rollingly matched with the load-bearing sliding groove (8).

4. A portal steel frame installation process according to claim 2, characterized in that: The bearing fixing seat (1) is fixedly mounted with two groups of positioning bars (9); when one side of the bearing mounting seat (2) abuts against one group of positioning bars (9), the bearing mounting seat (2) is in a horizontal state; when the other side of the bearing mounting seat (2) abuts against the other group of positioning bars (9), the bearing mounting seat (2) is in a vertical state.

5. The portal steel frame installation process according to claim 1 is characterized in that: The second bearing driving member comprises a bearing worm wheel (11), a bearing worm (12) and a bearing motor (13); the bearing rotating seat (3) is rotatably mounted on the bearing mounting seat (2) via a rotating shaft; the bearing worm wheel (11) is coaxially fixedly mounted on the rotating shaft of the bearing rotating seat (3); the bearing worm (12) is rotatably mounted on the bearing mounting seat (2) and meshes with the bearing worm wheel (11); and the bearing motor (13) is used for driving the bearing worm (12) to rotate.

6. The portal steel frame installation process according to claim 1, characterized in that: The clamping mechanism further comprises a clamping fixed seat (16) and a clamping mounting seat (17), wherein the clamping fixed seat (16) is mounted on the bearing rotating seat (3), and the clamping mounting seat (17) is rotatably mounted on a side of the clamping fixed seat (16) away from the bearing rotating seat (3), and the clamping drive assembly comprises a first clamping drive member and a second clamping drive member, wherein the first clamping drive member is used to drive the clamping mounting seat (17) to rotate, and the second clamping drive member is used to drive the two clamping jaws (15) to move in a direction of approaching or moving away from each other.

7. The portal steel frame installation process according to claim 6, characterized in that: The first clamping drive member comprises a first motor (21), the first motor (21) is mounted on a clamping fixing seat (16), an output end of the first motor (21) is passed through and rotatably engaged with the clamping fixing seat (16), and the clamping mounting seat (17) is coaxially fixedly mounted on the output end of the first motor (21).

8. The portal steel frame installation process according to claim 6, characterized in that: The second clamping driving member comprises a second motor (22), a clamping rotating wheel (23), a first connecting rod (24) and a second connecting rod (25); the clamping rotating wheel (23) is rotatably mounted on the clamping mounting seat (17); the second motor (22) is mounted on one side of the clamping mounting seat (17) in a horizontal direction and is used to drive the clamping rotating wheel (23) to rotate; one end of the first connecting rod (24) is rotatably mounted on the clamping rotating wheel (23) and the other end is rotatably mounted on one of the clamping jaws (15); one end of the second connecting rod (25) is rotatably mounted on the clamping rotating wheel (23) and the other end is rotatably mounted on the other clamping jaw (15); both clamping jaws (15) are slidably fitted on the clamping mounting seat (17).

9. A portal steel frame installation process according to claim 8, characterized in that: The clamping jaws (15) include a clamping sliding portion (151) and a clamping pressing portion (152); the clamping mounting seat (17) is fixedly mounted with a clamping limiting portion (26); the clamping limiting portion (26) is passed through the clamping sliding portions (151) of the two clamping jaws (15) and is slidably matched with the clamping sliding portions (151); the clamping pressing portions (152) of the two clamping jaws (15) are respectively fixedly mounted on the opposite side of the two clamping sliding portions (151) and are arranged close to the bottom of the clamping sliding portions (151).

10. The portal steel frame installation process according to claim 6, characterized in that: The bearing rotating seat (3) is provided with a clamping moving part for driving the two groups of clamping mechanisms to move toward or away from each other, and the clamping moving part comprises a moving motor (18) and a bidirectional screw rod (19). The bidirectional screw rod (19) is rotatably mounted on the bearing rotating seat (3). Two sections of the bidirectional screw rod (19) with opposite thread rotation directions are respectively penetrated and threadedly engaged with two clamping fixed seats (16). Both of the two clamping fixed seats (16) are slidably engaged with the bearing rotating seat (3). The moving motor (18) is mounted on the bearing rotating seat (3) and is used to drive the bidirectional screw rod (19) to rotate.

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