Special hanging box for load test of bridge crane

Abstract

The utility model relates to a special hanging box for a load test of a bridge crane. The special hanging box for the load test of the bridge crane comprises a base which is formed by vertically connecting a plurality of transverse rods and longitudinal rods and is used for supporting a balancing weight; the lifting pieces are fixed at four corners of the base and are connected with lifting hooks of the bridge crane; the blocking frame is arranged on the edge of the base and used for limiting the balancing weight on the base. The height of the blocking frame is increased in a layer-by-layer welding mode, so that the height of the load space is increased, the load space can contain enough configuration blocks, and when the number of balancing weights capable of being contained by the load space is enough to measure the load of the bridge crane for the TBM equipment, a lifting hook of the bridge crane is hung and buckled on a hanging piece, so that the load of the bridge crane is measured. And then starting the bridge crane to carry out a load test. Therefore, the problem that the load of the bridge crane cannot be measured due to the fact that the capacity of a traditional hanging box for the balancing weights is limited is solved.

Description

Technical Field

[0001] This application relates to the technical field of bridge cranes, and particularly to a special hanging box for the load test of bridge cranes. Background Art

[0002] A bridge crane is a lifting device that spans over workshops, warehouses, and yards for material handling. Since its two ends are seated on tall concrete columns or metal brackets and its shape resembles a bridge, it is named a bridge crane. The bridge of the bridge crane runs longitudinally along the tracks laid on both sides of the elevated racks, and can make full use of the space under the bridge to lift materials without being hindered by ground equipment. It is a type of lifting machinery with the widest application range and the largest number.

[0003] For the 2nd bid section of the Mid-Yunnan Diversion Project's Dali I section, TBM method construction needs to be carried out underground with a maximum buried depth of 1128 m. The TBM equipment is assembled in the tunnel through a bridge crane. Since the TBM equipment is relatively heavy, an in-tunnel bridge crane with a larger lifting weight than conventional hoisting is required.

[0004] To test the lifting weight (load) of the crane, a hanging box is needed. By increasing the number of configuration blocks in the hanging box to test the load capacity of the crane. However, the traditional hanging box has a limited capacity for counterweight blocks, resulting in the inability to measure the load of the bridge crane for TBM equipment. Summary of the Utility Model

[0005] To solve or partially solve the problems existing in the related technologies, this application provides a special hanging box for the load test of bridge cranes.

[0006] To achieve the above object, this application is implemented through the following technical solutions:

[0007] A special hanging box for the load test of bridge cranes, the special hanging box for the load test of bridge cranes includes:

[0008] A base, which is formed by vertically connecting a number of cross bars and longitudinal bars and is used to support counterweight blocks;

[0009] Hanging members, fixed at the four corners of the base and connected to the hook of the bridge crane;

[0010] Blocking frames, arranged at the edges of the base and used to limit the counterweight blocks on the base;

[0011] Among them, the base and the blocking frames together form a load space for accommodating counterweight blocks, and the upper ends of the blocking frames extend away from the base to increase the height of the load space.

[0012] Optionally, the hanging members include two symmetrically arranged ear plates, and two support plates are provided on the end face of the ear plate close to the edge of the base;

[0013] Among them, a bolt is inserted between two ear plates.

[0014] Optionally, the ear plates are made of Q235B carbon steel plates with a thickness of 50 mm.

[0015] Optionally, the support plate is made of Q235B carbon steel plates with a thickness of 12 mm, and the support plate is triangular.

[0016] Optionally, the bolt is made of 50Cr steel with a diameter of Φ120.

[0017] Optionally, the cross bar and the longitudinal bar are made of H-shaped steel with a specification of HN900×300×17×28.

[0018] Optionally, the retaining frame is made of I-shaped steel with a model of 22#B.

[0019] Advantages of the present application: The base and the retaining frame of the present application form a load space for accommodating counterweights. During use, the counterweights are placed on the base, and the counterweights are restricted on the base by the retaining frame to prevent them from falling out of the base. The height of the retaining frame is increased by means of layer-by-layer welding to increase the height of the load space, so that the load space can accommodate enough configured blocks. When the number of counterweights it can accommodate is sufficient to measure the load of the bridge crane for TBM equipment, the hook of the bridge crane is hung on the hanging member, and then the bridge crane is started to carry out the load test. In this way, the problem that the traditional hanging box has a limited capacity for accommodating counterweights, resulting in the inability to measure the load of the bridge crane, is avoided.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By describing the exemplary embodiments of the present application in more detail in conjunction with the drawings, the above and other objects, features and advantages of the present application will become more obvious. Among them, in the exemplary embodiments of the present application, the same reference numerals generally represent the same components.

[0022] Figure 1 is the top view of the special hanging box for the load test of the bridge crane shown in the embodiment of the present application;

[0023] Figure 2 is the bottom view of the special hanging box for the load test of the bridge crane shown in the embodiment of the present application;

[0024] Figure 3 is the first elevation view of the special hanging box for the load test of the bridge crane shown in the embodiment of the present application;

[0025] Figure 4It is the second elevation view of the special hanging box for the load test of the bridge crane shown in the embodiments of the present application;

[0026] Figure 5 It is the first perspective view of the hanging member shown in the embodiments of the present application;

[0027] Figure 6 It is the second perspective view of the hanging member shown in the embodiments of the present application.

[0028] Reference numerals: 1 base, 2 cross bar, 3 longitudinal bar, 4 hanging member, 5 retaining frame, 6 ear plate, 7 support plate, 8 pin, 9 column, 10 cross beam. Detailed implementation manners

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified or limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact via an intermediate medium. Moreover, a first feature being "above", "over" and "on top of" a second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. A first feature being "under", "beneath" and "underneath" a second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0033] In the present invention, terms such as "an embodiment", "some embodiments", "an example", "a specific example" or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0034] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0035] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0036] In order to make the purpose, technical solution and beneficial effects of the present application clearer, the preferred embodiments of the present application will be described in detail below in conjunction with the drawings for the convenience of those skilled in the art to understand.

[0037] Embodiment 1:

[0038] See Figures 1 to 4 , a special hanging box for the load test of a bridge crane, the special hanging box for the load test of the bridge crane comprising:

[0039] A base 1, which is vertically connected by a plurality of cross bars 2 and longitudinal bars 3 and is used for supporting counterweights;

[0040] Lifting members 4, which are fixed at the four corners of the base 1 and are connected to the hook of the bridge crane;

[0041] The retaining frame 5 is arranged at the edge of the base 1 and is used to restrict the counterweight on the base 1;

[0042] Wherein, the base 1 and the retaining frame 5 together form a load space for accommodating the counterweight, and the upper end of the retaining frame 5 extends away from the base 1 to increase the height of the load space.

[0043] Specifically, the cross bars 2 and the longitudinal bars 3 are perpendicular to each other and are fixed by welding. A number of cross bars 2 and longitudinal bars 3 form a quadrilateral base 1; the lower end of the hanging member 4 is fixed to the upper end of the base 1 by welding. There are two pairs of hanging members 4, which are respectively located at the four corners of the base 1. The double hook group is used for lifting, so that the lifting of the hanging box is more stable; the retaining frame 5 is formed by the vertical connection of the columns 9 and the cross beams 10. The lower end of the retaining frame 5 is fixed to the upper end edge of the base 1 by welding, and the retaining frame 5 is provided on all four sides of the base 1. By welding a new retaining frame 5 to the upper end of the first layer of the retaining frame 5, the height of the retaining frame 5 is increased. By repeating the above process, the upper end of the retaining frame 5 extends away from the base 1, thereby increasing the height of the load space and increasing the number of counterweights that can be accommodated;

[0044] The base 1 and the retaining frame 5 together form a load space for accommodating the counterweight. During use, the counterweight is placed on the base 1, and the counterweight is restricted on the base 1 by the retaining frame 5 to prevent it from falling out of the base 1. The height of the retaining frame 5 is increased by means of layer-by-layer welding to increase the height of the load space, so that the load space can accommodate enough configured blocks. When the number of counterweights it can accommodate is sufficient to measure the load of the bridge crane for the TBM equipment, the hook of the bridge crane is hung on the hanging member 4, and then the bridge crane is started to carry out the load test. In this way, the problem that the traditional hanging box has a limited number of counterweights that can be accommodated, resulting in the inability to measure the load of the bridge crane, is avoided.

[0045] Embodiment 2:

[0046] See Figures 1 to 6 Based on Embodiment 1, optionally, the hanging member 4 includes two symmetrically arranged ear plates 6, and two support plates 7 are provided on the end face of the ear plate 6 close to the edge of the base 1;

[0047] Wherein, a pin 8 is inserted through between the two ear plates 6.

[0048] Specifically, the lower end of the ear plate 6 is fixed to the upper end of the base 1 by welding, and the end face of the ear plate 6 close to the edge of the base 1 is fixed to the support plate 7 by double-sided groove welding. The joint performance is good and the connection strength is increased. A hole allowing the pin 8 to pass through is provided in the middle of the ear plate 6. After the pin 8 passes through this hole, it is fixedly connected thereto. The hook is hung on the pin 8, and the hanging member 4 provides a fixed point for the hook of the bridge crane.

[0049] Optionally, the ear plate 6 is made of Q235B carbon steel plate with a thickness of 50 mm.

[0050] Specifically, Q235B steel plate has relatively high yield strength and tensile strength, and can bear large loads. Q235B steel plate has good toughness and can undergo plastic deformation without fracture when subjected to impact or extrusion. Q235B steel plate is easy to process and form, and is suitable for various processing technologies such as cutting, bending, stamping, etc. Q235B steel plate has good corrosion resistance and can resist the erosion of atmosphere, water and chemical media. The production cost of Q235B steel plate is relatively low, which is suitable for large-scale production and wide application.

[0051] Optionally, the support plate 7 is made of Q235B carbon steel plate with a thickness of 12 mm, and the support plate 7 is triangular.

[0052] Specifically, the support plate 7 is used to increase the structural strength of the ear plate 6, improve the load of the lifting member 4, and extend its service life.

[0053] Optionally, the pin 8 is made of 50Cr steel with a diameter of Φ120.

[0054] Specifically, 50Cr, as an alloy structural steel, has the advantages of medium strength, high toughness, wear resistance, corrosion resistance and heat resistance.

[0055] Optionally, the cross bar 2 and the longitudinal bar 3 are made of H-shaped steel with a specification of HN900×300×17×28.

[0056] Specifically, compared with I-beam, H-shaped steel has a larger section modulus. Under the same load-bearing conditions, 10-15% of metal can be saved. The design style of H-shaped steel is flexible and rich. Under the condition of the same beam height, the bay of the steel structure can be 50% larger than that of the concrete structure, so that the building layout is more flexible. H-shaped steel has high structural stability, its structure is scientific and reasonable, and it has good plasticity and flexibility. H-shaped steel is convenient for machining, easy for structural connection and installation, and also easy for demolition and reuse.

[0057] Optionally, the retaining frame 5 is made of I-beam with a model of 22#B.

[0058] Specifically, the retaining frame 5 is welded by I-beams, with simple structure and stable structure. It is buried in the underground space and can be quickly installed and replaced.

[0059] In addition, the present application also has the following advantages: it can stably bear a 300t counterweight block, is simple to manufacture, has a safe structure and reliable quality. It is simple to install, convenient to replace and remove, and is closely connected with the counterweight block.

[0060] It should be noted that the structures and / or installation methods not described in detail in this application can be known to those skilled in the art by combining common general knowledge and / or existing technologies, and are not the key points of disclosure in this application, so no further elaboration will be made here.

[0061] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of this application and not to limit them. Although this application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and details without departing from the scope defined by the claims of this application; the dimensions of the drawings have nothing to do with the specific physical objects, and the physical object dimensions can be changed arbitrarily.

Claims

1. A special hanging box for the load test of a bridge crane, characterized in that The special hanging box for the load test of the overhead crane includes a base (1), which is vertically connected by a number of cross bars (2) and longitudinal bars (3) and is used to support the counterweight blocks; hanging members (4), which are fixed at the four corners of the base (1) and are connected to the hook of the overhead crane; a retaining frame (5), which is arranged on the edge of the base (1) and is used to restrict the counterweight blocks on the base (1); wherein, the base (1) and the retaining frame (5) form a load space for accommodating the counterweight blocks, and the upper end of the retaining frame (5) extends in a direction away from the base (1) to increase the height of the load space.

2. The special hanging box for the load test of the bridge crane according to claim 1, characterized in that, The hanging member (4) includes two symmetrically arranged ear plates (6), and two support plates (7) are arranged on the end face of one side of the ear plate (6) close to the edge of the base (1); wherein, a pin (8) is inserted between the two ear plates (6).

3. The special hanging box for the load test of the bridge crane according to claim 2, characterized in that, The ear plate (6) is made of Q235B carbon steel plate with a thickness of 50 mm.

4. The special hanging box for the load test of the bridge crane according to claim 2, wherein, The support plate (7) is made of Q235B carbon steel plate with a thickness of 12 mm, and the support plate (7) is triangular.

5. The special hanging box for the load test of the bridge crane according to claim 2, characterized in that, The pin (8) is made of 50Cr steel with a diameter of Φ120.

6. The special hanging box for the load test of the overhead crane according to claim 1, characterized in that, The cross bar (2) and the longitudinal bar (3) are made of H-shaped steel with a specification of HN900×300×17×28.

7. The special hanging box for the load test of the bridge crane according to claim 1, characterized in that, The retaining frame (5) is made of I-shaped steel with a model of 22#B.

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