Tower crane cross beam foundation device capable of adjusting perpendicularity

Abstract

The utility model discloses a tower crane cross beam foundation device capable of adjusting perpendicularity, and relates to the field of building construction. The outer sides of the ends of the cross-shaped beam are fixedly sleeved with hoops respectively, one side of each hoop is fixedly connected with an embedded part, the embedded parts are embedded in the concrete bearing platform, a plurality of base plates are arranged between the lower side of the end of the cross-shaped beam and the hoops, limiting adjusting bolts are arranged between the upper side of the end of the cross-shaped beam and the hoops, and the limiting adjusting bolts are used for locking the ends of the cross-shaped beam. And a plurality of jacks are arranged between the cross beam on the inner side of each hoop and the concrete bearing platform. According to the utility model, the heights of the end parts of the four supporting legs of the cross beam are adjusted through the screw jacks, and the perpendicularity of the tower crane is quickly adjusted by combining the limiting adjusting bolts and the base plates when differential settlement of a foundation occurs, so that the perpendicularity of the tower crane is ensured to be within a safe range, and the safety and the efficiency of construction are improved.

Description

Technical Field

[0001] The utility model relates to the field of construction, and particularly relates to a cross beam foundation device of a tower crane with adjustable verticality. Background Art

[0002] As a commonly used heavy lifting equipment on construction sites, tower cranes are responsible for tasks such as material transportation and aerial work. Its foundation must have sufficient stability and bearing capacity to ensure the safety and efficiency of construction. However, in the actual construction process, the foundation conditions are complex and changeable, and uneven settlement often occurs. This settlement will cause the inclination of the tower crane foundation, thus affecting the verticality of the tower crane. If not adjusted in time, it will seriously affect the safe use of the tower crane. Therefore, it is particularly important to provide an adjustable cross beam foundation device for tower cranes to quickly adjust the verticality of the tower crane when uneven settlement occurs in the foundation and ensure that the verticality of the tower crane is within the safe range. Content of the Utility Model

[0003] The purpose of the utility model is to provide a cross beam foundation device of a tower crane with adjustable verticality to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] A cross beam foundation device of a tower crane with adjustable verticality includes a cross beam. Hoop fasteners are respectively sleeved and fixed on the outer sides of the ends of the cross beam. One side of the hoop fastener is fixedly connected with a pre-embedded part, and the pre-embedded part is pre-embedded in a concrete pile cap. A plurality of cushion plates are arranged between the lower side of the end of the cross beam and the hoop fastener, and a limit adjusting bolt is arranged between the upper side of the end and the hoop fastener. The limit adjusting bolt is used to lock the end of the cross beam. A plurality of jacks are arranged between the cross beam on the inner side of each hoop fastener and the concrete pile cap.

[0006] In a feasible implementation manner, the hoop fastener is fixedly connected to the pre-embedded part by welding.

[0007] In a feasible implementation manner, the pre-embedded part includes a pre-embedded part surface layer and anchor bars welded to the lower side of the pre-embedded part surface layer.

[0008] In a feasible implementation manner, the hoop fastener is fixedly connected to the upper side of the pre-embedded part surface layer, and the anchor bars are pre-embedded in the concrete pile cap.

[0009] In a feasible implementation manner, the pre-embedded part is a steel pre-embedded part, and the cushion plate is a steel plate.

[0010] In a feasible implementation manner, the jack is a screw jack, and a support is arranged between the top of the jack and the lower side of the cross beam.

[0011] In a feasible implementation, there are two jacks between the cross beam on the inner side of each hoop and the concrete pile cap. The two jacks are horizontally spaced at both lower ends of the support.

[0012] In a feasible implementation, the support includes a support plate arranged on the lower side of the cross beam. Side beams are respectively fixed at both ends of the support plate, and the side beams are arranged on both sides of the cross beam.

[0013] In a feasible implementation, the hoop is of an integral structure.

[0014] In a feasible implementation, the hoop is provided with an operation opening for adjusting the limit adjusting bolt.

[0015] The support can increase the contact area between the screw jack and the cross beam, disperse the pressure exerted by the screw jack on the cross beam, reduce the pressure, and at the same time provide a flat support surface, making the contact between the top of the screw jack and the cross beam more stable and preventing sliding or displacement during the jacking process.

[0016] In actual operation, pads with different thicknesses can be selected, and the verticality can be adjusted by placing pads with different thickness combinations. By loosening the limit adjusting bolt, adjusting the screw jack, and jacking up the cross beam, the number of pads is replaced according to the gap between the lower side of the hoop and the end of the cross beam.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] The present utility model provides a cross beam foundation device for a tower crane with adjustable verticality. By adjusting the heights of the four support feet of the cross beam through screw jacks, when the foundation settles unevenly, the verticality of the tower crane can be quickly adjusted in combination with the limit adjusting bolt and the pads, ensuring that the verticality of the tower crane is within the safe range, thereby improving the construction safety and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic structural diagram of the cross beam foundation device for a tower crane with adjustable verticality of the present utility model;

[0020] Figure 2 FIG. is a schematic structural diagram of the cross beam foundation device for a tower crane with adjustable verticality of the present utility model;

[0021] Figure 3 FIG. is Figure 2 a sectional view in the A direction;

[0022] Figure 4 FIG. is Figure 2 a D-D sectional view of FIG.

[0023] In the figure, 1-cross beam, 2-hoop, 3-embedded part, 4-concrete pile cap, 5-jack, 6-backing plate, 7-limit adjusting bolt, 8-bearing, 21-operation opening, 31-surface layer of embedded part, 32-anchor bar, 81-supporting plate, 82-side beam. Detailed implementation manners

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated position or component must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] Embodiment 1

[0027] See Figures 1 to 4, the present utility model provides a cross - beam foundation device for a tower crane with adjustable verticality. Fixed sleeves 2 are respectively sleeved on the outer sides of the four foot ends of the cross - beam 1. One side of the fixed sleeve 2 is welded and fixed to the embedded part 3. The embedded part 3 is a steel embedded part, including an embedded part surface layer 31 and anchor bars 32 welded to the lower side of the embedded part surface layer 31. The fixed sleeve 2 is welded and fixed to the upper side of the embedded part surface layer 31, and the anchor bars 32 are embedded in the concrete pile cap 4. Between the cross - beam 1 and the concrete pile cap 4 inside each fixed sleeve 2, there are two jacks 5. A support 8 is arranged between the top of the jack 5 and the lower side of the cross - beam 1. The two jacks 5 are horizontally spaced on both sides of the lower end of the support 8. The jack 5 is a screw jack. The support 8 includes a support plate 81 arranged on the lower side of the cross - beam 1. Side beams 82 are respectively fixed at both ends of the support plate 81. The side beams 82 are arranged on both sides of the cross - beam 1. The support 8 can increase the contact area between the jack 5 and the cross - beam 1, disperse the pressure exerted by the jack 5 on the cross - beam 1, reduce the pressure, and at the same time provide a flat support surface, making the contact between the top of the jack 5 and the cross - beam 1 more stable and preventing sliding or displacement during the jacking process. The fixed sleeve 2 is of an integral structure. A rectangular area is formed in the fixed sleeve 2, and the outer sides of the foot ends of the cross - beam 1 are arranged in the rectangular area. Between the lower side of the end of the cross - beam 1 and the fixed sleeve 2, there are several backing plates 6. The backing plates 6 are steel plates, and the fixed sleeve 2 is provided with an operation opening 21 for adjusting the limit adjusting bolt 7 to lock the end of the cross - beam 1. In actual operation, backing plates 6 with different thicknesses can be selected, and the verticality can be adjusted by placing backing plates 6 with different thickness combinations. By loosening the limit adjusting bolt 7, adjusting the jack 5 to jack up the cross - beam 1, and replacing the number of backing plates 6 according to the gap between the fixed sleeve 2 and the lower side of the end of the cross - beam 1, after the overall verticality of the tower crane is reset, then tighten the limit adjusting bolt 7 to lock the end of the cross - beam 1.

[0028] The installation steps of the present utility model are as follows:

[0029] Fabricate the concrete pile cap and place the embedded part. After the concrete reaches the required use strength, pre - assemble the four feet of the cross - beam and the fixed sleeve, then integrally position and align them with the embedded part, weld the fixed sleeve and the embedded part, and adjust the verticality during the initial installation by adjusting the limit adjusting bolt and placing steel plates with different thickness combinations. After completion, the installation of the upper structure of the tower crane can be carried out.

[0030] The adjustment steps of the present utility model:

[0031] When the uneven settlement of the foundation causes the verticality of the tower body to exceed the safe use range, first stop using the tower crane and level the moment before and after the tower crane. For the fulcrum that needs to adjust the height, first adjust the limit adjusting bolt to leave a gap between the cross beam and the upper part of the hoop, then jack it up through the screw jack at the end of the support leg, place the steel plate into the gap between the cross beam and the lower part of the hoop, and then adjust the limit adjusting bolt again to make it tightly press against the upper surface of the cross beam. By adjusting the four support legs of the cross beam, the reset of the overall verticality of the tower crane is achieved.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cross-beam foundation device for a tower crane with adjustable verticality, comprising a cross beam, characterized in that, Hooping iron is respectively sleeved and fixed on the outer sides of the ends of the cross beam. One side of the hooping iron is fixedly connected with the embedded part, and the embedded part is embedded in the concrete pile cap. A plurality of backing plates are arranged between the lower side of the end of the cross beam and the hooping iron, and a limit adjusting bolt is arranged between the upper side of the end of the cross beam and the hooping iron. The limit adjusting bolt is used for locking the end of the cross beam. A plurality of jacks are arranged between the cross beam on the inner side of each hooping iron and the concrete pile cap.

2. The cross beam foundation device of the tower crane with adjustable verticality according to claim 1, characterized in that, The hooping iron is fixedly connected with the embedded part by welding.

3. The cross beam foundation device of the tower crane with adjustable verticality according to claim 1, characterized in that, The embedded part includes an embedded part surface layer and anchor bars welded to the lower side of the embedded part surface layer. The hooping iron is fixedly connected to the upper side of the embedded part surface layer, and the anchor bars are embedded in the concrete pile cap.

4. The cross beam foundation device of the tower crane with adjustable verticality according to claim 1, characterized in that, The embedded part is a steel embedded part, and the backing plate is a steel plate.

5. The cross beam foundation device of the tower crane with adjustable verticality according to claim 1, characterized in that, The jack is a screw jack, and a support is arranged between the top of the jack and the lower side of the cross beam.

6. The cross-beam foundation device of the tower crane with adjustable verticality according to claim 1, characterized in that The hooping iron is of an integral structure.

7. The cross beam foundation device of the tower crane with adjustable verticality according to claim 6, characterized in that, The hooping iron is provided with an operation opening for adjusting the limit adjusting bolt.

8. The cross-beam foundation device of the tower crane with adjustable verticality according to claim 1, characterized in that, There are two jacks between the cross beam on the inner side of each hooping iron and the concrete pile cap. The two jacks are horizontally arranged at both ends of the lower side of the support at intervals.

9. The cross beam foundation device of the tower crane with adjustable verticality according to claim 8, characterized in that, The support includes a support plate arranged on the lower side of the cross beam. Side beams are respectively fixed at both ends of the support plate, and the side beams are arranged on both sides of the cross beam.

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