A crane matrix type tensile embedded and load-sharing structure and its embedded method

Abstract

The present invention discloses a crane matrix type tensile pre-embedded and load-sharing structure and its pre-embedded method, the structure comprises a lower pre-embedded part and an upper connecting part, the lower pre-embedded part comprises a pre-embedded fixing plate, a pre-embedded positioning plate, a lower pre-embedded screw, a washer and a nut, the pre-embedded fixing plate is connected to the lower part of the lower pre-embedded screw by bolts, and the lower pre-embedded positioning plate is connected to the upper part of the lower pre-embedded screw; the upper connecting part comprises a load-sharing structure, a fastening crossbeam, an upper bearing screw, a washer, a nut and a long nut, the lower part of the upper bearing screw is connected to the lower pre-embedded screw by a long nut, the upper part of the upper bearing screw is connected to the fastening crossbeam, and the load-sharing structure is arranged on the fastening crossbeam; the lower pre-embedded part is pre-set in a concrete foundation pit, and then the upper connecting part is installed to form a matrix distributed bearing system. The present invention reduces concentrated force, saves foundation costs, has high precision, fast transition, and has a compact, simple and smooth appearance.

Description

Technical Field

[0001] The invention relates to a crane matrix type tensile pre-embedded and load-sharing structure and a pre-embedded method thereof, and belongs to the field of lifting machinery. Background Art

[0002] When the crane is operating with load, the forward tilting moment is large, which will cause the rear pull rod to generate a large upward pull force. In order to ensure the stability of the entire machine during the lifting process, the equipment needs to be connected to the embedded bearing structure to prevent the equipment from tipping over.

[0003] The existing crane embedded bearing structure has a large single-point load, concentrated force, and high cost and difficulty in local reinforcement of concrete; the embedded parts are large steel beams, which are not conducive to the full pouring of concrete. The large steel beams are poured into the concrete foundation and cannot be reused, which is not economical and environmentally friendly. Most existing cranes rely on ballast to ensure their own stability. The ballast of the ballast foundation is large in volume and affects the appearance; in addition to the foundation treatment, additional concrete or steel ballast needs to be made, which is not economical. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a crane matrix type tensile embedded and load-sharing structure and its embedded method in view of the defects in the prior art, which can realize quick transfer and save basic costs.

[0005] To solve this technical problem, the present invention provides a crane matrix tensile embedded and load-sharing structure, including a lower embedded part and an upper connecting part, the lower embedded part includes an embedded fixing plate, an embedded positioning plate, a lower embedded screw, a washer and a nut, the embedded fixing plate is connected to the lower part of the lower embedded screw by bolts, and the lower embedded positioning plate is connected to the upper part of the lower embedded screw; the upper connecting part includes a load-sharing structure, a fastening beam, an upper bearing screw, a washer, a nut and a long nut, the lower part of the upper bearing screw is connected to the lower embedded screw by a long nut, the upper part of the upper bearing screw is connected to the fastening beam, and the load-sharing structure is arranged on the fastening beam; in the process of preparing the concrete steel mesh, the embedded fixing plate is first pre-set into the foundation pit of the concrete foundation, the two lower embedded screws are fixed to the embedded fixing plate by washers and nuts, the position accuracy of the lower embedded screw is adjusted, and then the lower embedded screw is fixed by washers and nuts The rod is fixed together with the embedded positioning plate, a fastening beam, two upper load-bearing screws, three lower embedded screws, an embedded fixing plate and an embedded positioning plate and their connecting parts form a matrix unit, and multiple matrix units form a matrix system. After each unit is firmly fixed to the steel mesh, concrete can be poured. When the concrete strength reaches the installation requirement, the upper connecting part is installed. First, the foundation plane is leveled, and the load-balancing structure is installed just above the embedded positioning plate on the upper surface of the dock, and is arranged symmetrically front and back and left and right relative to the embedded positioning plate. Then, the fastening beam is installed on the upper surface of the load-balancing structure, and the connecting bolt holes of the fastening beam are opposite to the bolt holes of the embedded positioning plate. The lower embedded screw and the upper load-bearing screw are connected by long nuts, and the position accuracy is adjusted. Then, the two upper load-bearing screws are connected to the fastening beam by washers and nuts. Multiple identical matrix units finally form a matrix-distributed load-bearing system.

[0006] The load-sharing structure includes a concentrated load pull plate, a primary load transfer structure, a secondary load transfer structure and a tertiary load transfer structure. The two tertiary load transfer structures are arranged in parallel, a plurality of secondary load transfer structures are arranged vertically between the two tertiary load transfer structures, the primary load transfer structure is arranged between the two secondary load transfer structures, and the concentrated load pull plate is arranged on the primary load transfer structure.

[0007] The upper load-bearing screw and the lower embedded screw are both stud structures with threads at both ends. The two screws have different lengths and the other parameters are the same; the embedded fixing plate and the embedded positioning plate have the same structure shape but different plate thickness.

[0008] The present invention also provides a crane matrix type tensile embedding and load-sharing structure embedding method, comprising the following steps:

[0009] 1) During the preparation of the concrete steel mesh, the embedded fixing plate is first pre-placed in the foundation pit of the concrete foundation, and the two lower embedded screws are fixed to the embedded fixing plate through washers and nuts;

[0010] 2) Adjust the position accuracy of the lower embedded screw, and then fix the lower embedded screw and the embedded positioning plate together through washers and nuts;

[0011] 3) The matrix units formed in steps 1) and 2) are fixed firmly to the steel mesh, and then concrete can be poured;

[0012] 4) When the concrete strength reaches the installation requirements, install the upper connection part. First, level the foundation plane, install the load-sharing structure just above the embedded positioning plate on the upper surface of the dock, and arrange it symmetrically front and back and left and right relative to the embedded positioning plate. Then install the fastening beam on the upper surface of the load-sharing structure, and the connection bolt holes of the fastening beam are aligned with the bolt holes of the embedded positioning plate.

[0013] 5) Connect the lower embedded screw and the upper load-bearing screw through a long nut, adjust the position accuracy, and then connect the two upper load-bearing screws to the fastening beam through washers and nuts. Multiple identical matrix units finally form a matrix-distributed load-bearing system.

[0014] Beneficial effects: The present invention breaks down concentrated loads into parts, and transmits five levels of loads through matrix-type tensile pre-embedded beams and their load-sharing structures, thereby reducing concentrated forces, making foundation design and on-site processing simpler, saving foundation expenses, and reducing costs; reducing the number of pre-embedded beams of large steel structures, and enabling the concrete and pre-embedded parts to be fully integrated when pouring concrete; the load-sharing structure is processed and manufactured in the factory, and has higher precision than on-site boring of pre-embedded beams; the site transfer is fast, and will not cause damage to the original foundation; the present invention adopts a de-weighting design, and the appearance is compact, simple, and smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic axonometric diagram of the structure of the present invention;

[0016] Figure 2 It is an axonometric schematic diagram of the load-sharing structure of the present invention;

[0017] Figure 3 It is an axonometric schematic diagram of the fastening beam of the present invention;

[0018] Figure 4 It is an axonometric schematic diagram of the upper bearing screw and the lower embedded screw of the present invention;

[0019] Figure 5 It is an axonometric schematic diagram of the embedded fixing plate and the embedded positioning plate of the present invention;

[0020] Figure 6It is an axonometric schematic diagram of the long nut of the present invention.

[0021] In the figure: 1. Load-sharing structure; 2. Fastening crossbeam; 3. Upper load-bearing screw; 4. Washer; 5. Nut; 6. Embedded fixing plate; 7. Embedded positioning plate; 8. Long nut; 9. Lower embedded screw; 11. Concentrated load pull plate; 12. Primary load transfer structure; 13. Secondary load transfer structure; 14. Tertiary load transfer structure. DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1-Figure 6 As shown, the present invention provides a crane matrix tensile embedded and load-sharing structure, including a lower embedded part and an upper connecting part, wherein the lower embedded part includes an embedded fixing plate 6, an embedded positioning plate 7, a lower embedded screw 9, a washer 4 and a nut 5, the embedded fixing plate 6 is connected to the lower part of the lower embedded screw 9 by bolts, and the lower embedded positioning plate 7 is connected to the upper part of the lower embedded screw 9. In the early stage of foundation making, the lower embedded part needs to be embedded along with the foundation making; the upper connecting part includes a load-sharing structure 1, The fastening crossbeam 2, the upper bearing screw 3, the washer 4, the nut 5 and the long nut 8, the lower part of the upper bearing screw 3 is connected to the lower embedded screw 9 through the long nut 8, the upper part of the upper bearing screw 3 is connected to the fastening crossbeam 2, the load-sharing structure 1 is arranged on the fastening crossbeam 2, and the fastening crossbeam 2 redistributes the force of the load-sharing structure 1; during the preparation of the concrete steel mesh, the embedded fixing plate 6 is first preset to the corresponding position, and the two lower embedded screws 9 are fixed on the embedded fixing plate 6 by the washer 4 and the nut 5, and the position of the lower embedded screw 9 is adjusted. The positioning accuracy is then achieved by fixing the lower embedded screw rod 9 and the embedded positioning plate 7 together through washers 4 and nuts 5. A fastening crossbeam 2, two upper bearing screw rods 3, three lower embedded screw rods 9, an embedded fixing plate 6 and an embedded positioning plate 7 and their connecting parts form a matrix unit. Multiple matrix units form a matrix system. Each unit is firmly fixed to the steel mesh, and then concrete can be poured. When the concrete strength reaches the installation requirements, the upper connection part is installed. First, the foundation plane is leveled. The load-sharing structure 1 is installed just above the embedded positioning plate 7 on the upper surface of the dock, and is arranged symmetrically front to back and left to right relative to the embedded positioning plate 7. The fastening beam 2 is then installed on the upper surface of the load-sharing structure 1. The connecting bolt holes of the fastening beam 2 are directly opposite to the bolt holes of the embedded positioning plate 7. The lower embedded screw 9 and the upper load-bearing screw 3 are connected by long nuts 8. After the position accuracy is adjusted, the two upper load-bearing screws 3 are connected to the fastening beam 2 by washers 4 and nuts 5. Multiple identical matrix units finally form a matrix-distributed load-bearing system.

[0024] The load-sharing structure includes a concentrated load pull plate 11, a primary load transfer structure 12, a secondary load transfer structure 13 and a tertiary load transfer structure 14. The two tertiary load transfer structures 14 are arranged in parallel, and multiple secondary load transfer structures 13 are vertically arranged between the two tertiary load transfer structures 14. The primary load transfer structure 12 is arranged between the two secondary load transfer structures 13, and the concentrated load pull plate 11 is arranged on the primary load transfer structure 12.

[0025] When the system is subjected to stress, the concentrated force is transmitted to the primary load transfer structure 12, the secondary load transfer structure 13, and the tertiary load transfer structure 14 in sequence through the concentrated load pull plate 11 of the load-sharing structure 1, and then the force is transmitted to the fourth-level load transfer structure fastening beam 2, and then transmitted to the fifth-level lower embedded part through the fastening beam 2 and the upper load-bearing screw 3. A matrix system is formed by multiple matrix units, and the upper concentrated load is broken down into parts and transmitted to each matrix unit. Through the five-level load transfer, the concentrated force is reduced, the foundation design and its on-site processing are simpler, and the cost of the foundation is effectively reduced. The upper load-bearing screw 3 is connected with the lower embedded screw 9 through the long nut 8, and the entire equipment is quickly transferred without causing damage to the original foundation.

[0026] The upper bearing screw 3 and the lower embedded screw 9 are both stud structures with threads at both ends. The two screws have different lengths and the other parameters are the same; the embedded fixing plate 6 and the embedded positioning plate 7 have the same structure and shape but different plate thicknesses.

[0027] The present invention also provides a crane matrix type tensile embedding and load-sharing structure embedding method, comprising the following steps:

[0028] 1) During the preparation of the concrete steel mesh, the embedded fixing plate 6 is first pre-placed in the foundation pit of the concrete foundation, and the two lower embedded screws 9 are fixed to the embedded fixing plate 6 by washers 4 and nuts 5;

[0029] 2) Adjust the position accuracy of the lower embedded screw 9, and then fix the lower embedded screw 9 and the embedded positioning plate 7 together through the washer 4 and the nut 5;

[0030] 3) The matrix units formed in steps 1) and 2) are fixed firmly to the steel mesh, and then concrete can be poured;

[0031] 4) When the concrete strength reaches the installation requirements, install the upper connection part. First, level the foundation plane, install the load-sharing structure 1 just above the embedded positioning plate 7 on the upper surface of the dock, and arrange it symmetrically front and back and left and right relative to the embedded positioning plate 7. Then install the fastening beam 2 on the upper surface of the load-sharing structure 1, and the connection bolt holes of the fastening beam 2 are aligned with the bolt holes of the embedded positioning plate 7;

[0032] 5) Connect the lower embedded screw 9 and the upper load-bearing screw 3 through the long nut 8, adjust the position accuracy, and then connect the two upper load-bearing screws 9 to the fastening beam 2 through the washer 4 and the nut 5. Multiple identical matrix units finally form a matrix-distributed load-bearing system, thereby achieving the purpose of resisting the upward pull force when the equipment is working.

[0033] The present invention adopts a decompression weight design. The load-sharing structure of the upper connecting part transmits the force to the fourth-level fastening beam through the internal three-level load transmission, and then transmits the force to the lower embedded part of the fifth level through the fastening beam and the upper load-bearing screw, so that the concentrated load is divided into parts. Through the five-level load transmission, the concentrated force is reduced, the foundation design and its on-site processing are simpler, the cost of the foundation is effectively reduced, and the appearance is compact, simple and smooth; the embedded beams of the steel structure are reduced, and the concrete and the embedded parts can be fully integrated when pouring concrete; the load-sharing structure can be processed and manufactured in the factory, and the accuracy is higher than that of boring holes on the embedded beams on site.

[0034] The above embodiments of the present invention are merely illustrative and not exclusive, and all modifications within the scope of the present invention or equivalent to the scope of the present invention are encompassed by the present invention.

Claims

1. A crane matrix tensile embedded and load-sharing structure, characterized in that: The invention comprises a lower embedded part and an upper connecting part, wherein the lower embedded part comprises an embedded fixing plate (6), an embedded positioning plate (7), a lower embedded screw rod (9), a washer (4) and a nut (5), the embedded fixing plate (6) is connected to the lower part of the lower embedded screw rod (9) by bolts, and the lower embedded positioning plate (7) is connected to the upper part of the lower embedded screw rod (9); the upper connecting part comprises a load-sharing structure (1), a fastening cross beam (2), an upper bearing screw rod (3), a washer (4), a nut (5) and a long nut (8), and the upper bearing screw rod (3) is connected to the upper part of the lower embedded screw rod (9). The lower part of the upper bearing screw (3) is connected to the lower embedded screw rod (9) through a long nut (8), the upper part of the upper bearing screw rod (3) is connected to the fastening cross beam (2), and the load-sharing structure (1) is arranged on the fastening cross beam (2); during the preparation of the concrete steel mesh, the embedded fixing plate (6) is first pre-set to a corresponding position, and the two lower embedded screw rods (9) are fixed to the embedded fixing plate (6) through washers (4) and nuts (5), the position accuracy of the lower embedded screw rods (9) is adjusted, and then the lower embedded screw rods (9) are fixed to the embedded fixing plate (6) through washers (4) and nuts (5). The embedded positioning plate (7) is fixed together, a fastening beam (2), two upper load-bearing screws (3), three lower embedded screws (9), an embedded fixing plate (6) and an embedded positioning plate (7) and their connecting parts form a matrix unit, and multiple matrix units form a matrix system. Each unit is firmly fixed to the steel mesh, and then concrete can be poured; when the concrete strength reaches the installation requirement, the upper connection part is installed, the foundation plane is first leveled, and the load-balancing structure (1) is installed to the embedded positioning plate (7) on the upper surface of the wharf ), and are arranged symmetrically frontally and rearwardly and leftwardly with respect to the embedded positioning plate (7), and then the fastening crossbeam (2) is installed on the upper surface of the load-balancing structure (1), the connecting bolt holes of the fastening crossbeam (2) are directly opposite to the bolt holes of the embedded positioning plate (7), the lower embedded screw rod (9) and the upper bearing screw rod (3) are connected by a long nut (8), the position accuracy is adjusted, and then the two upper bearing screw rods (3) are connected to the fastening crossbeam (2) by a washer (4) and a nut (5), and a plurality of identical matrix units finally form a matrix-distributed bearing system.

2. The crane matrix tensile embedded and load-sharing structure according to claim 1 is characterized in that: The load-sharing structure (1) comprises a concentrated load pull plate (11), a primary load transfer structure (12), a secondary load transfer structure (13) and a tertiary load transfer structure (14); two of the tertiary load transfer structures (14) are arranged in parallel, a plurality of secondary load transfer structures (13) are arranged vertically between the two tertiary load transfer structures (14), the primary load transfer structure (12) is arranged between the two secondary load transfer structures (13), and the concentrated load pull plate (11) is arranged on the primary load transfer structure (12).

3. The crane matrix tensile embedded and load-sharing structure according to claim 1 or 2, characterized in that: The upper bearing screw (3) and the lower embedded screw (9) are both stud structures with threads at both ends. The two screws have different lengths and the other parameters are the same; the embedded fixing plate (6) and the embedded positioning plate (7) have the same structure and shape but different plate thicknesses.

4. The method for pre-embedding the crane matrix tensile bearing and load-sharing structure according to claim 1, 2 or 3, characterized in that: The steps include: 1) During the preparation of the concrete steel mesh, the embedded fixing plate (6) is first pre-placed in the foundation pit of the concrete foundation, and two lower embedded screws (9) are fixed to the embedded fixing plate (6) by means of washers (4) and nuts (5); 2) adjusting the position accuracy of the lower embedded screw rod (9), and then fixing the lower embedded screw rod (9) and the embedded positioning plate (7) together by means of a washer (4) and a nut 5; 3) The matrix units formed in steps 1) and 2) are fixed firmly to the steel mesh, and then concrete can be poured; 4) When the concrete strength reaches the installation requirements, the upper connection part is installed. First, the foundation plane is leveled, and the load-sharing structure (1) is installed just above the pre-embedded positioning plate (7) on the upper surface of the dock, and is arranged symmetrically front and back and left and right relative to the pre-embedded positioning plate (7). Then, the fastening beam (2) is installed on the upper surface of the load-sharing structure (1), and the connection bolt holes of the fastening beam (2) are aligned with the bolt holes of the pre-embedded positioning plate (7); 5) Connect the lower embedded screw rod (9) and the upper bearing screw rod (3) through the long nut (8), adjust the position accuracy, and then connect the two upper bearing screw rods (3) to the fastening beam (2) through the washer (4) and the nut (5). A plurality of identical matrix units finally form a matrix-distributed bearing system.

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