A special lifting device for a crane of a multi-hanging-point balanced beam hook

Abstract

The utility model discloses a kind of special lifting appliance of travelling crane of multi-hanging point balance beam lifting hook, it is related to steel structure construction technology field, including balance beam, the upper hanging lug is fixedly installed in the middle of balance beam upper surface, balance beam lower surface is equipped with a plurality of lower hanging lug at intervals, the lower hanging lug is about balance beam middle symmetrical arrangement;Beneficial effect is in that: the special lifting appliance of travelling crane of multi-hanging point balance beam lifting hook of the utility model, when hoisting large or irregular object, provide more stress point, improve the security of hoisting, reduce the risk of overturning or imbalance. The design of multiple hanging points on balance beam can also satisfy the hoisting mode of multiple objects, increase the applicability of travelling crane lifting appliance, simple structure, convenient hoisting.

Description

Technical Field

[0001] This utility model relates to the field of steel structure construction technology, and in particular to a crane-specific lifting device with a multi-point balance beam hook. Background Technology

[0002] In the field of photovoltaic bracket manufacturing, overhead crane lifting is an indispensable step due to the weight of the materials and tools themselves. However, traditional overhead crane lifting equipment often only has one lifting point, limiting it to lifting objects with only one lifting point. When lifting long or large objects, the force direction at a single lifting point can easily cause the object to tip over or become unbalanced. Therefore, we have developed a multi-lifting-point balance beam lifting equipment that can safely lift objects of various shapes. Utility Model Content

[0003] The purpose of this utility model is to provide a crane-specific lifting device with a multi-point balance beam hook to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A crane-specific lifting device with a multi-point balance beam hook includes a balance beam, an upper lifting lug fixedly installed in the middle of the upper surface of the balance beam, and a plurality of lower lifting lugs spaced apart on the lower surface of the balance beam, the lower lifting lugs being symmetrically arranged about the middle of the balance beam.

[0006] Preferably, the balance beam is an I-beam, and the balance beam is provided with beam stiffeners corresponding to the lower lifting lug position.

[0007] Preferably, a lifting lug reinforcing rib is provided between the side of the upper lifting lug and the upper surface of the balance beam.

[0008] Preferably, both ends of the balance beam are provided with support feet for supporting the balance beam, and the support height of the support feet on the support beam is greater than the height of the lower lifting lug.

[0009] Preferably, both the upper and lower lifting lugs are provided with lifting holes.

[0010] Preferably, the system further includes a transport hook, the upper end of which is provided with a connecting structure corresponding to the upper lifting lug, and the lower end of which is configured as a hook to facilitate hooking goods.

[0011] Preferably, each of the lower lifting lugs includes two parallel lug plates, and the upper end of the transport hook is connected between the lug plates by a pin.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention enables the hoisting of objects through multiple lifting points, and can hoist large objects with multiple lifting points or irregular shapes. Single, double, or four lifting points can be used depending on the actual situation. Furthermore, it effectively avoids tilting and uneven deformation of objects during the hoisting process, ensuring that the objects are vertically upright, evenly stressed, and do not tilt or become unbalanced, greatly improving safety. Field tests have shown that it can meet the requirements for hoisting and transferring steel coils and finished product stacks within the site, and it does not affect the steel coils or the appearance and quality of the finished products after hoisting. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of a crane-specific lifting device with a multi-point balance beam hook as described in this utility model.

[0016] Figure 2 This is an enlarged view of point A of the crane-specific lifting device with a multi-point balance beam hook described in this utility model.

[0017] Figure 3 This is an enlarged view of section B of the crane-specific lifting device with a multi-point balance beam hook described in this utility model.

[0018] Figure 4 This is a schematic diagram of the usage state 1 of the multi-point balance beam hook crane special lifting tool of this utility model.

[0019] Figure 5 This is a schematic diagram of the usage state 2 of the multi-point balance beam hook crane special lifting tool of this utility model.

[0020] Figure 6 This is a schematic diagram of the usage state 3 of the multi-point balance beam hook crane special lifting tool described in this utility model.

[0021] The annotations in the attached figures are explained as follows:

[0022] 1. Balance beam; 2. Upper lifting lug; 3. Lower lifting lug; 4. Support anchor; 5. Beam reinforcement; 6. Lifting lug reinforcement. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-3 As shown, a crane-specific lifting device with a multi-point balance beam hook includes a balance beam 1 and a transport hook. An upper lifting lug 2 is fixedly installed in the middle of the upper surface of the balance beam 1. The upper lifting lug 2 is shaped like a rectangular arc with a round hole in the middle to facilitate the passage of the crane hook. Several lower lifting lugs 3 are arranged at intervals on the lower surface of the balance beam 1, and the lower lifting lugs 3 are symmetrically arranged about the middle of the balance beam 1. The upper end of the transport hook is provided with a connection structure corresponding to the upper lifting lug 2, and the lower end of the transport hook is designed as a hook to facilitate hooking goods.

[0027] The balance beam 1 is an I-beam, and a beam stiffener 5 is provided at the position corresponding to the lower lifting lug 3 of the balance beam 1 to improve tensile strength and prevent deformation.

[0028] Both ends of the balance beam 1 are equipped with support feet 4 for supporting the balance beam 1. The support height of the support feet 4 on the support beam is greater than the height of the lower lifting lug 3. The support feet 4 are iron blocks shaped like arches, which are supported on the ground to prevent the bottom of the lifting lug from being worn and scratched by the floor paint.

[0029] A lifting lug reinforcing rib 6 is provided between the side of the upper lifting lug 2 and the upper surface of the balance beam 1; lifting holes are provided on both the upper lifting lug 2 and the lower lifting lug 3.

[0030] Each lower lifting lug 3 includes two parallel lug plates. The lug plates are iron blocks shaped like triangular plates with a round hole in the middle to facilitate the passage of a straight shaft. The upper end of the transport hook is connected between the lug plates by a pin.

[0031] This invention enables the hoisting of objects through multiple lifting points, and can be used to hoist large objects with multiple lifting points or irregular shapes. Single, double, or four lifting points can be used depending on the actual situation.

[0032] Working principle: During installation, firstly, the crane hook directly passes through the upper lifting lug 2 and connects with the balance beam 1, thereby lifting the balance beam 1. Then, the paired transport hooks are connected to the symmetrical lower lugs on the balance beam 1. Then, the pin passes through the transport hook and the lower lifting lug 3 to achieve a rotatable connection between the transport hook and the lower lifting lug 3. The other end of the transport hook is fixed to multiple lifting points on the object. During hoisting, a double hook or four hook hoisting method is used. A pair of hooks are fixed to the symmetrical lifting lugs at both ends of the balance beam 1, forming a triangular plane, which is beneficial to the stability of the object's posture during hoisting. Figure 4 The punching die for the workshop is a double-point lifting object, therefore two lifting points on the balance beam 1 are selected. Also, because the object is relatively narrow, two lifting points with a small gap are chosen to improve the object's balance and reduce the lateral forces received by the lifting points. Figure 5 In cases involving long, narrow stacked objects that are relatively wide, two lifting points that are far apart can be selected. Figure 6 The steel coil hoisting in this case requires hoisting objects with a single hoisting point, so the middle hoisting point can be selected; similarly, if it is necessary to hoist objects with four hoisting points, then the four hoisting points on both sides of the balance beam 1 can be selected.

[0033] The design concept of this utility model is as follows:

[0034] 1. Using a method similar to the diversion of water in a river, a single lifting point is divided into multiple lifting points. The force is evenly distributed across these multiple lifting points using a single I-beam.

[0035] 2. The balance beam 1 was modeled and its dimensions were adjusted using SW software, and finite element analysis was performed. The stress analysis of the main stress points was conducted to verify whether it meets the strength and safety requirements.

[0036] 3. Use CAD software to draw and dimension the balance beam 1 and its accessories, and indicate the technical requirements. At the same time, draw assembly drawings and welding diagrams, indicating the installation position, welding position and welding requirements of each accessory.

[0037] 4. Produce according to the drawings, weld using argon arc welding, clean the welding slag after welding, perform galvanizing for corrosion protection, and finally spray yellow paint to make it a clear color for early warning.

[0038] The foregoing has shown and described the basic principles, main features and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A crane-specific lifting device with a multi-point balance beam hook, characterized in that: It includes a balance beam (1), an upper lifting lug (2) is fixedly installed in the middle of the upper surface of the balance beam (1), and a number of lower lifting lugs (3) are arranged at intervals on the lower surface of the balance beam (1). The lower lifting lugs (3) are symmetrically arranged about the middle of the balance beam (1).

2. The crane-specific lifting device with a multi-point balance beam hook according to claim 1, characterized in that: The balance beam (1) is an I-beam, and the balance beam (1) is provided with beam reinforcing ribs (5) at the position corresponding to the lower lifting lug (3).

3. The crane-specific lifting device with a multi-point balance beam hook according to claim 1, characterized in that: A lifting lug reinforcing rib (6) is provided between the side of the upper lifting lug (2) and the upper surface of the balance beam (1).

4. The crane-specific lifting device with a multi-point balance beam hook according to claim 1, characterized in that: Both ends of the balance beam (1) are provided with support feet (4) for supporting the balance beam (1), and the support height of the support feet (4) on the support beam is greater than the height of the lower lug (3).

5. The crane-specific lifting device with a multi-point balance beam hook according to claim 1, characterized in that: Both the upper lifting lug (2) and the lower lifting lug (3) are provided with lifting holes.

6. The crane-specific lifting device with a multi-point balance beam hook according to claim 1, characterized in that: It also includes a transport hook, the upper end of which is provided with a connection structure corresponding to the upper lifting lug (2), and the lower end of which is provided with a hook shape to facilitate hooking goods.

7. A crane-specific lifting device with a multi-point balance beam hook according to claim 6, characterized in that: Each of the lower lifting lugs (3) includes two parallel lug plates, and the upper end of the transport hook is connected between the lug plates by a pin.

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