An assembling device and operating method of an asymmetric steel lattice beam

Abstract

The application belongs to the technical field of bridge construction, and particularly relates to a non-symmetrical steel lattice beam assembling device and operation method, which comprises a steel lattice beam section, and first and second splicing plates are fixedly connected to the opposite surfaces of every two adjacent steel lattice beam sections respectively, a through insertion opening is formed in the side surface of the second splicing plate close to the first splicing plate, and a butt joint mechanism is movably inserted into the inner wall of the through insertion opening and fixedly connected to the side surface of the first splicing plate. The non-symmetrical steel lattice beam assembling device and operation method are characterized in that the butt joint mechanism is arranged, the shape of the front end of the butt joint column is convenient for insertion into the through insertion opening, the square shape of the rear end of the butt joint column enables the first splicing block and the second splicing block to be stably butt jointed, the matching block and the sliding seat are connected by the traction rope to enable the matching block and the sliding seat to relatively move, and efficient butt joint and splicing are achieved, the structure is simple and convenient to operate, the splicing efficiency is improved, and the splicing difficulty is reduced.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to an assembly device and operation method for asymmetric steel grating beams. Background Technology

[0002] Asymmetric steel grating beams are structural elements commonly used in building and engineering structures. Their cross-sectional shapes have unequal dimensions in the horizontal and vertical directions. This asymmetric design allows the steel grating beams to withstand loads in different directions and play specific functions in structural design. In large-scale building projects, asymmetric steel grating beams are widely used due to their unique structural characteristics and stress performance.

[0003] Because of their shape characteristics, asymmetrical steel gratings are more difficult to assemble and join due to their unique shape, resulting in complex operation, difficulty in controlling precision, and low assembly efficiency. Summary of the Invention

[0004] The existing asymmetric steel gratings suffer from technical problems such as complex operation, difficulty in controlling precision, and low splicing efficiency due to their shape characteristics, which increase the difficulty of connecting and splicing between steel grating segments during assembly. This invention proposes an assembly device and operation method for asymmetric steel gratings.

[0005] This invention proposes an assembly device for asymmetric steel grating beams, comprising steel grating beam segments. A first splicing plate and a second splicing plate are fixedly connected to the opposing surfaces of every two adjacent steel grating beam segments. An insertion port is provided on the side surface of the second splicing plate closest to the first splicing plate. A docking mechanism is fixedly connected to one side surface of the first splicing plate, which movably engages with the inner wall of the insertion port. A limiting component is installed on the inner wall of the insertion port. A threaded fastening port and a telescopic rotation port are respectively provided on the outer surface of the second splicing plate, and a fastening component is installed on the inner wall of the telescopic rotation port.

[0006] The docking mechanism is used to initially dock the first splicing plate and the second splicing plate. The docking mechanism includes a docking post fixed to one side of the first splicing plate, and a drive guide groove is formed on the outer surface of the middle part of the docking post.

[0007] The limiting component is used to limit the docking mechanism within the insertion port and dock with the docking mechanism. The limiting component includes a displacement groove opened in the inner wall of the insertion port. A limiting seat is slidably inserted into the inner wall of the displacement groove. A push block is fixedly connected to one side surface of the limiting seat and slidably inserted into the inner wall of the drive guide groove.

[0008] The fastening component is used to fix the docking mechanism inside the second splicing plate. The fastening component includes a connecting ring that is movably sleeved on the inner wall of the telescopic rotating port. One end of the connecting ring is fixedly connected to a preliminary fastening ring with a threaded groove on its outer surface.

[0009] Preferably, a splicing guide component is provided on the top of the first splicing plate and the second splicing plate. The splicing guide component includes guide claws that interlock with each other. Two guide claws are fixedly connected to the upper surfaces of the first splicing plate and the second splicing plate, respectively. A blocking block that is pushed by a spring is installed on the inner surface of the middle part of one of the guide claws.

[0010] With the above technical solution, the front ends of the two intersecting guide claws are relatively thin. When the guide claws intersect, they can guide each other, which facilitates the docking between the first splicing plate and the second splicing plate. The extension of the blocking block locks the two guide claws.

[0011] Preferably, the front end cross-section of the docking post is square, the rear end cross-section of the docking post is circular, the outer surface of the front end of the docking post is provided with sliding grooves arranged in a ring array, the inner wall of the sliding groove is slidably inserted with a sliding seat, and the upper surface of the sliding seat is fixedly connected with a pressing block.

[0012] The above technical solution specifies the shape of the docking column, and the sliding groove installs and guides the slide block, so that the movement direction of the slide block is consistent, thereby driving the lower pressure block to move.

[0013] Preferably, two symmetrically distributed first springs are fixedly connected to the inner wall of one end of the sliding groove, and the free ends of the first springs are fixedly connected to one side surface of the slide block.

[0014] Through the above technical solution, the first spring acts on the slide block, and the slide block can move by the compression of the first spring when it is not subjected to other external forces.

[0015] Preferably, the outer surface of the end of the docking column is provided with a slot with a trapezoidal inner wall and a uniformly distributed ring array. One end of the slot has a traction hole that penetrates to the inner wall of the sliding groove. A traction rope that is movably connected to the inner wall of the traction hole is fixedly connected to one side surface of the slide block.

[0016] The above technical solution describes the distribution pattern of the slots, connects the slots and the sliding groove through the traction hole, and connects the structures inside the slots and the sliding groove through the traction rope.

[0017] Preferably, a second spring is fixedly connected to one end surface of the limiting seat and fixedly connected to one end inner wall of the displacement groove. Each pair of inner walls opposite to the limiting seat is rotatably sleeved with an installation shaft by a torsion spring. A limiting buckle is fixedly sleeved on the outer surface of the installation shaft. The upper end surface of the limiting buckle and the lower surface of the lower pressure block are mutually pressed and limited.

[0018] Through the above technical solution, the second spring presses the limiting seat so that the limiting seat extends out of the insertion port when it is not subjected to external force, and the addition of the torsion spring makes the limiting buckle expand outward when it is not pressed by external force.

[0019] Preferably, the inner surface of the initial fastening ring is fixedly connected to four mating blocks evenly distributed in a ring array via a bearing mounting ring, the outer surface of the mating blocks is slidably inserted into the inner wall of the slot, and the free end of the traction rope is fixedly connected to one side surface of the mating block.

[0020] Through the above technical solution, the addition of the bearing mounting ring ensures that the rotation of the initial fastening ring does not hinder the movement of the mating block, and the movement of the sliding block controls the movement of the slide.

[0021] Preferably, the outer surface of the initial fastening ring is threadedly connected to a fastening limiting sleeve, the outer surface of the fastening limiting sleeve is fixedly sleeved with a driven gear, and the outer surface of the fastening limiting sleeve is threadedly connected to the inner wall of the threaded fastening port.

[0022] Through the above technical solution, the thread direction of the initial fastening ring and the fastening limiting sleeve needs to be driven in different directions in order to accurately control the initial fastening ring and the fastening limiting sleeve.

[0023] Preferably, a drive motor is fixedly installed on the inner wall of the outer side of the second splicing plate, and a drive gear that meshes with the driven gear is fixedly sleeved on the outer surface of the main shaft of the drive motor.

[0024] The above technical solution transmits the power of the drive motor to the initial fastening ring and the fastening limit sleeve through the meshing of the drive gear and the driven gear.

[0025] Preferably, the operation method of an asymmetric steel grating beam assembly device is as follows: First, the steel grating beam segment to be hoisted is hoisted by steel cables. When hoisted to the installation location, the two guide claws guide each other, and at the same time, the limiting buckle unfolds outward to facilitate the guidance of the docking column, so that the docking column can be inserted into the insertion port.

[0026] During the process of inserting the docking post into the insertion port, the push block on the limiting seat moves in the drive guide groove. When the push block contacts the end of the guide groove, it will cause the limiting buckle to rotate towards the center, so that the limiting buckle rotates to 90 degrees and the end of the limiting buckle extends into the sliding groove.

[0027] Finally, the drive motor starts, and the meshing of the drive gear and driven gear controls the rotation of the fastening limit sleeve and the initial fastening ring. Since the threaded groove between the fastening limit sleeve and the initial fastening ring is a single section, the fastening limit sleeve cannot continue to rotate forward after rotating a certain length. The drive motor rotates clockwise, causing the initial fastening ring to rotate towards the middle of the mating post, controlling the mating block to move within the slot.

[0028] Since the two ends of the traction rope are connected to the mating block and the slide block respectively, when the mating block moves to one end of the slot, it will reduce the tension of the traction rope on the slide block, causing the slide block to move to one end of the slot, controlling the limit buckle and the lower pressure block to engage with each other. Then, the drive motor is reversed, controlling the fastening limit sleeve to align with the threaded fastening port, thereby completing the splicing between the first splicing plate and the second splicing plate.

[0029] The beneficial effects of this invention are as follows:

[0030] 1. By setting up a docking mechanism, the shape of the front end of the docking column facilitates insertion into the insertion port, and the square shape of the rear end of the docking column enables the first splicing block and the second splicing block to dock stably. Furthermore, the connection between the mating block and the slide block is achieved by the traction rope, allowing relative movement between the mating block and the slide block, thereby achieving efficient docking and splicing. The structure is simple and easy to operate, improving splicing efficiency and reducing splicing difficulty.

[0031] 2. By setting a limiting component, the push block moves in the drive guide groove. When the push block contacts the end of the guide groove, the limiting buckle will rotate towards the center, so that the limiting buckle rotates to 90 degrees. The end of the limiting buckle extends into the sliding groove to limit the docking column and fix the docking column in the insertion port, thus providing stable limiting between the first splicing block and the second splicing block. The structure is simple and continuous.

[0032] 3. By setting fastening components, the meshing of the driving gear and driven gear controls the rotation of the fastening limit sleeve and the preliminary fastening ring. Since the threaded groove between the fastening limit sleeve and the preliminary fastening ring is a single section, the fastening limit sleeve cannot continue to rotate forward after rotating a certain length. The drive motor rotates clockwise, causing the preliminary fastening ring to rotate towards the center of the mating post, controlling the movement of the mating block in the slot. The distance between the first splicing block and the second splicing block is controlled by the preliminary fastening ring, further controlling the connection between the fastening limit sleeve and the second splicing block, achieving the effect of convenient operation and high splicing efficiency. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of an assembly device and operation method for an asymmetric steel grating beam proposed in this invention;

[0034] Figure 2This is a three-dimensional view of a steel grating segment structure, which is part of an asymmetric steel grating beam assembly device and operation method proposed in this invention.

[0035] Figure 3 This is a perspective view of the first splicing plate structure of the asymmetric steel grating beam assembly device and operation method proposed in this invention;

[0036] Figure 4 This is a perspective view of the second splicing plate structure of the asymmetric steel grating beam assembly device and operation method proposed in this invention;

[0037] Figure 5 This is a perspective view of the interlocking structure of an asymmetric steel grating beam assembly device and operation method proposed in this invention.

[0038] Figure 6 This is a perspective view of the limiting seat structure of the assembly device and operation method for asymmetric steel grating beams proposed in this invention.

[0039] Figure 7 This is a perspective view of the fastening and limiting sleeve structure of the assembly device and operation method for asymmetric steel grating beams proposed in this invention.

[0040] Figure 8 This is a perspective view of the connecting column structure of the asymmetric steel grating beam assembly device and operation method proposed in this invention;

[0041] Figure 9 This is a perspective view of the traction rope structure of the assembly device and operation method for an asymmetric steel grating beam proposed in this invention.

[0042] In the diagram: 1. Steel grating beam segment; 2. First splicing plate; 3. Second splicing plate; 4. Guide claw; 5. Interlocking port; 6. Threaded fastening port; 7. Telescopic rotating port; 8. Connecting column; 81. Drive guide groove; 82. Sliding groove; 83. Slide seat; 84. Lower pressure block; 85. First spring; 86. Slot; 87. Traction hole; 88. Traction rope; 9. Displacement groove; 91. Limiting seat; 92. Push block; 93. Second spring; 94. Mounting shaft; 95. Limiting buckle; 10. Connecting ring; 101. Preliminary fastening ring; 102. Mating block; 103. Fastening limiting sleeve; 104. Driven gear; 105. Drive motor; 106. Driving gear. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0044] Reference Figures 1-9An asymmetric steel grating assembly device includes steel grating segments 1. A first splicing plate 2 and a second splicing plate 3 are fixedly connected to the opposing surfaces of every two adjacent steel grating segments 1. To facilitate rapid docking between the first splicing plate 2 and the second splicing plate 3, a splicing guide component is provided on the top of the first splicing plate 2 and the second splicing plate 3. The splicing guide component includes interlocking guide claws 4. Two guide claws 4 are fixedly connected to the upper surfaces of the first splicing plate 2 and the second splicing plate 3, respectively. Because the front ends of the two interlocking guide claws 4 are relatively thin, the guide claws 4 can guide each other when they intersect, facilitating docking between the first splicing plate 2 and the second splicing plate 3. Furthermore, to prevent the two guide claws 4 from sliding outwards due to gravity after intersecting, a spring-driven blocking block is installed on the inner surface of the middle part of one of the guide claws 4. The extension of the blocking block locks the two guide claws 4.

[0045] like Figures 1-9 As shown, the second splicing plate 3 has an insertion port 5 on one side surface near the first splicing plate 2. The first splicing plate 2 has a docking mechanism fixedly connected to one side surface, which is movably inserted into the inner wall of the insertion port 5. A limiting component is installed on the inner wall of the insertion port 5. The outer surface of the second splicing plate 3 has a threaded fastening port 6 and a telescopic rotation port 7 respectively. A fastening component is installed on the inner wall of the telescopic rotation port 7.

[0046] like Figures 1-5 and Figure 9 As shown, the docking mechanism is used to initially dock the first splicing plate 2 and the second splicing plate 3. The docking mechanism includes a docking post 8 fixed to one side of the first splicing plate 2. In order to cooperate with other structures during the insertion of the docking post 8, a drive guide groove 81 is provided on the outer surface of the middle part of the docking post 8. Furthermore, in order to enable the docking post 8 to quickly enter the insertion port 5 and fit into the insertion port 5, the shape of the docking post 8 is defined. The front end cross-section of the docking post 8 is square. The rear cross-section is circular. In order to install other structures in the middle of the docking column 8, a sliding groove 82 distributed in a ring array is provided on the outer surface of the front end of the docking column 8. Furthermore, a slide block 83 is slidably inserted into the inner wall of the sliding groove 82. The sliding groove 82 guides and limits the slide block 83. In order to cooperate with other structures, a lower pressure block 84 is fixedly connected to the upper surface of the slide block 83. The cooperation between the slide block 83 and the sliding groove 82 makes the movement direction of the slide block 83 consistent, thereby driving the lower pressure block 84 to move.

[0047] To allow the slide 83 to move under the pressure of the first spring 85 without external force, two symmetrically distributed first springs 85 are fixedly connected to the inner wall of one end of the sliding groove 82, and the free ends of the first springs 85 are fixedly connected to one side surface of the slide 83. The first springs 85 act on the slide 83. To install the structure at the end of the docking post 8, slots 86 with trapezoidal inner walls and uniformly distributed in a ring array are provided on the outer surface of the end of the docking post 8. Furthermore, to enable communication between the slots 86 and the sliding groove 82, a traction hole 87 is provided on the inner wall of one end of the slot 86, penetrating to the inner wall of the sliding groove 82. A traction rope 88 is fixedly connected to one side surface of the slide 83 and movably sleeved with the inner wall of the traction hole 87. The distribution pattern of the slots 86 is described, and the structure in the slots 86 and the sliding groove 82 is connected by the traction rope 88.

[0048] By setting up a docking mechanism, the shape of the front end of the docking post 8 facilitates insertion into the insertion port 5, and the square shape of the rear end of the docking post 8 enables the first splicing block and the second splicing block to dock stably. Furthermore, the connection between the mating block 102 and the slide block 83 is achieved through the traction rope 88, allowing relative movement between the mating block 102 and the slide block 83. This results in efficient docking and splicing, with a simple structure and convenient operation, improving splicing efficiency and reducing splicing difficulty.

[0049] like Figures 3-8 As shown, the limiting component is used to limit the docking mechanism within the insertion port 5 and dock with the docking mechanism. The limiting component includes a displacement groove 9 formed on the inner wall of the insertion port 5. A limiting seat 91 is slidably inserted into the inner wall of the displacement groove 9. In order to control the movement of the limiting seat 91 when the docking column 8 moves, a push block 92 is fixedly connected to one side surface of the limiting seat 91 and slidably inserted into the inner wall of the drive guide groove 81. A second spring 93 is fixedly connected to one end surface of the limiting seat 91 and fixedly connected to one end inner wall of the displacement groove 9. Two springs 93 press against the limiting seat 91, causing the limiting seat 91 to extend outside the insertion port 5 when not subjected to external force. In order to make the limiting buckle 95 expand outward when not subjected to external force, a mounting shaft 94 is rotatably sleeved on the inner wall of each pair of opposite limiting seats 91 by a torsion spring. The outer surface of the mounting shaft 94 is fixedly sleeved with the limiting buckle 95. When the limiting buckle 95 is deflected to the horizontal, its end is inserted into the sliding groove 82, thereby causing the upper surface of the end of the limiting buckle 95 to press against the lower surface of the lower pressure block 84 and limit it.

[0050] By setting a limiting component, the push block 92 moves within the drive guide groove 81. When the push block 92 contacts the end of the guide groove, the limiting buckle 95 rotates towards the center, causing the limiting buckle 95 to rotate to 90 degrees. The end of the limiting buckle 95 extends into the sliding groove 82 to limit the docking post 8, fixing the docking post 8 within the insertion port 5, thus providing stable limiting between the first splicing block and the second splicing block. The structure is simple and continuous.

[0051] like Figures 1-9 As shown, the fastening component is used to fix the docking mechanism inside the second splicing plate 3. The fastening component includes a connecting ring 10 that is movably sleeved on the inner wall of the telescopic rotating port 7. The cooperation between the connecting ring 10 and the telescopic rotating port 7 allows the preliminary fastening ring 101 to rotate circumferentially along the same axis. One end surface of the connecting ring 10 is fixedly connected to the preliminary fastening ring 101, which has a threaded groove on its outer surface. In order to control the mating block 102 to a certain extent by rotating the preliminary fastening ring 101, four mating blocks 102 evenly distributed in a ring array are fixedly connected to the inner surface of the preliminary fastening ring 101 by bearing mounting rings. This allows the outer surface of the mating block 102 to slide into the inner wall of the slot 86, and the free end of the traction rope 88 is fixedly connected to one side surface of the mating block 102. The addition of the bearing mounting rings ensures that the rotation of the preliminary fastening ring 101 does not hinder the movement of the mating block 102. The movement of the mating block 102 controls the movement of the slide block 83.

[0052] Furthermore, to securely connect the docking post 8 to the second splicing plate 3, a fastening limiting sleeve 103 is threaded onto the outer surface of the initial fastening ring 101. Further, to drive the fastening limiting sleeve 103, a driven gear 104 is fixedly sleeved onto the outer surface of the fastening limiting sleeve 103, causing the outer surface of the fastening limiting sleeve 103 to be threaded into the inner wall of the threaded fastening port 6. The thread direction of the initial fastening ring 101 and the fastening limiting sleeve 103 needs to be adjusted. The drive is directed in different directions to accurately control the initial fastening ring 101 and the fastening limiting sleeve 103. Furthermore, a drive motor 105 is fixedly installed on the inner wall of the outer side of the second splicing plate 3. The outer surface of the main shaft of the drive motor 105 is fixedly sleeved with a drive gear 106 that meshes with the driven gear 104, so that the power of the drive motor 105 is transmitted to the initial fastening ring 101 and the fastening limiting sleeve 103 through the meshing of the drive gear 106 and the driven gear 104.

[0053] By setting fastening components, the meshing of the driving gear 106 and the driven gear 104 controls the rotation of the fastening limiting sleeve 103 and the preliminary fastening ring 101. Since the threaded groove between the fastening limiting sleeve 103 and the preliminary fastening ring 101 is a single section, the fastening limiting sleeve 103 cannot continue to rotate forward after rotating a certain length. The drive motor 105 rotates clockwise, causing the preliminary fastening ring 101 to rotate towards the center of the docking post 8, controlling the movement of the mating block 102 within the slot 86. The distance between the first splicing block and the second splicing block is controlled by the preliminary fastening ring 101, further controlling the connection between the fastening limiting sleeve 103 and the second splicing block, achieving the effect of convenient operation and high splicing efficiency.

[0054] like Figures 1-9 As shown, the operation method of an asymmetric steel grating beam assembly device is as follows: First, the steel grating beam segment 1 to be hoisted is hoisted by steel cable. When hoisted to the installation location, the two guide claws 4 guide each other, and at the same time, the limiting buckle 95 unfolds outward to facilitate the guidance of the docking column 8, so that the docking column 8 can be inserted into the insertion port 5.

[0055] During the process of inserting the docking post 8 into the insertion port 5, the push block 92 on the limiting seat 91 moves in the drive guide groove 81. When the push block 92 contacts the end of the guide groove, it will cause the limiting latch 95 to rotate towards the center, so that the limiting latch 95 rotates to 90 degrees and the end of the limiting latch 95 extends into the sliding groove 82.

[0056] Finally, the drive motor 105 starts, and through the meshing of the drive gear 106 and the driven gear 104, it controls the fastening limit sleeve 103 and the preliminary fastening ring 101 to rotate. Since the threaded groove between the fastening limit sleeve 103 and the preliminary fastening ring 101 is a single section, the fastening limit sleeve 103 cannot continue to rotate forward after rotating a certain length. The drive motor 105 rotates clockwise, causing the preliminary fastening ring 101 to rotate toward the middle of the mating post 8, controlling the mating block 102 to move within the slot 86.

[0057] Since the two ends of the traction rope 88 are connected to the mating block 102 and the slide block 83 respectively, when the mating block 102 moves towards one end of the slot 86, it will reduce the tension of the traction rope 88 on the slide block 83, causing the slide block 83 to move towards one end of the slot 86, controlling the limit latch 95 to engage with the lower pressure block 84, and then controlling the drive motor 105 to reverse, controlling the fastening limit sleeve 103 to dock with the threaded fastening port 6, thereby completing the splicing between the first splicing plate 2 and the second splicing plate 3.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An assembly device for asymmetric steel grating beams, comprising steel grating beam segments (1), characterized in that: Each pair of adjacent steel grating beam segments (1) is fixedly connected to a first splicing plate (2) and a second splicing plate (3) on their opposite surfaces. The second splicing plate (3) has an insertion port (5) on one side surface near the first splicing plate (2). The first splicing plate (2) has a docking mechanism fixedly connected to one side surface that is movably inserted into the inner wall of the insertion port (5). The inner wall of the insertion port (5) is equipped with a limiting component. The outer surface of the second splicing plate (3) is provided with a threaded fastening port (6) and a telescopic rotating port (7). The inner wall of the telescopic rotating port (7) is equipped with a fastening component. The docking mechanism is used to initially dock the first splicing plate (2) and the second splicing plate (3). The docking mechanism includes a docking post (8) fixed on one side of the first splicing plate (2). A drive guide groove (81) is provided on the outer surface of the middle part of the docking post (8). The limiting component is used to limit the docking mechanism within the insertion port (5) and dock with the docking mechanism. The limiting component includes a displacement groove (9) opened on the inner wall of the insertion port (5). A limiting seat (91) is slidably inserted into the inner wall of the displacement groove (9). A push block (92) is fixedly connected to one side surface of the limiting seat (91) and slidably inserted into the inner wall of the drive guide groove (81). The fastening component is used to fix the docking mechanism inside the second splicing plate (3). The fastening component includes a connecting ring (10) that is movably sleeved on the inner wall of the telescopic rotating port (7). One end of the connecting ring (10) is fixedly connected to a preliminary fastening ring (101) with a threaded groove on its outer surface. The top of the first splicing plate (2) and the second splicing plate (3) is provided with a splicing guide component. The splicing guide component includes guide claws (4) that interlock with each other. The two guide claws (4) are fixedly connected to the upper surfaces of the first splicing plate (2) and the second splicing plate (3) respectively. A blocking block pushed by a spring is installed on the inner surface of the middle part of one of the guide claws (4). The front end cross-section of the docking post (8) is square, and the rear end cross-section of the docking post (8) is circular. The outer surface of the front end of the docking post (8) is provided with a sliding groove (82) arranged in a ring array. A slide seat (83) is slidably inserted into the inner wall of the sliding groove (82). A pressing block (84) is fixedly connected to the upper surface of the slide seat (83). Two first springs (85) are fixedly connected to the inner wall of one end of the sliding groove (82). The free end of the first spring (85) is fixedly connected to one side surface of the slide seat (83). The outer surface of the end of the docking column (8) is provided with a slot (86) with a trapezoidal inner wall and a uniformly distributed ring array. The inner wall of one end of the slot (86) is provided with a traction hole (87) that penetrates to the inner wall of the sliding groove (82). A traction rope (88) is fixedly connected to one side surface of the slide (83) and movably sleeved with the inner wall of the traction hole (87). A second spring (93) is fixedly connected to one end surface of the limiting seat (91) and fixedly connected to one end inner wall of the displacement groove (9). Each pair of inner walls opposite to the limiting seat (91) is rotatably sleeved with an installation shaft (94) by a torsion spring. A limiting buckle (95) is fixedly sleeved on the outer surface of the installation shaft (94). The upper surface of the end of the limiting buckle (95) is squeezed and limited by the lower surface of the lower pressure block (84). The inner surface of the initial fastening ring (101) is fixedly connected to four mating blocks (102) evenly distributed in a ring array via a bearing mounting ring. The outer surface of the mating block (102) is slidably inserted into the inner wall of the slot (86), and the free end of the traction rope (88) is fixedly connected to one side surface of the mating block (102). The outer surface of the initial fastening ring (101) is threadedly connected to a fastening limiting sleeve (103), and the outer surface of the fastening limiting sleeve (103) is fixedly sleeved with a driven gear (104). The outer surface of the fastening limiting sleeve (103) is threadedly connected to the inner wall of the threaded fastening port (6).

2. The assembly device for asymmetric steel grating beams according to claim 1, characterized in that: A drive motor (105) is fixedly installed on the inner wall of the outer side of the second splicing plate (3), and a drive gear (106) that meshes with the driven gear (104) is fixedly sleeved on the outer surface of the main shaft of the drive motor (105).

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