Auxiliary lifting appliance for lifting bridge crane

Abstract

The utility model belongs to the field of hoisting of bridge cranes, and provides an auxiliary hoisting tool for hoisting of a bridge crane. The auxiliary lifting appliance comprises a lifting arm, a main lifting frame, a counterweight lifting frame, a counterweight mounting frame and a lifting lug. The boom has an elongated body. The main lifting frame is fixedly connected to the upper portion of the lifting arm and provided with a main lifting hole. The counterweight hoisting frame is fixedly connected above the suspension arm and is provided with a counterweight hoisting hole, the counterweight hoisting hole is close to the first end of the suspension arm, and the distance between the counterweight hoisting hole and the main hoisting hole is consistent with the distance between the main hook head and the auxiliary hook head of the crane. And the counterweight mounting frame is fixedly mounted below the suspension arm and is positioned under the counterweight hoisting hole, and the counterweight mounting frame is used for mounting a counterweight block. The object lifting lug is fixedly installed at the second end of the lifting arm and located below the lifting arm, and the object lifting lug is provided with a lifting hole. According to the lever principle, the auxiliary lifting appliance is matched with the main hook head and the auxiliary hook head of the crane to achieve lifting of objects below the cart stand column of the crane, and the lifting range of the crane is widened.

Description

Technical Field

[0001] The utility model relates to the field of bridge crane hoisting, in particular to an auxiliary hoisting device used for bridge crane hoisting. Background Art

[0002] With the continuous progress of science and technology and the continuous development of the national economy, the demand for cargo handling in many fields and occasions is also expanding. Cranes have successfully solved the problems of complex and heavy handling work. Cranes can carry many types of cargo, which can be common finished products, bulk materials or liquid materials, and even high-risk cargo and personnel transportation, greatly reducing the physical strength and labor intensity of personnel, improving work efficiency, and making industrial processes mechanized and automated.

[0003] A bridge crane is a type of bridge crane that is directly supported on the elevated structure track of a building through a running device at both ends of the bridge. The bridge crane completes the handling operation of items by lifting and lowering the hook (or other picking device) in the vertical direction and running in the horizontal direction. Commonly used bridge cranes are equipped with a trolley, a trolley, a main hook, an auxiliary hook and other mechanisms, and the lifting range of the crane is within the range of the intersection of the trolley and the trolley as coordinates. Generally, in a production plant, a bridge crane is arranged in a multi-span arrangement, and each span of the crane requires two spans of columns to support the crane for the trolley to travel, and the trolley runs on the crane box beam. Due to structural restrictions, the trolley can only run within the range of the crane box beam track, and the items under the crane trolley track column cannot be lifted. However, the production equipment in the plant cannot be completely set within the range of the crane operation. In the past, the lifting and transportation of items under the crane column was carried out by tilting, pulling, forklift or manual handling. The tilted and slanted lifting will cause the hook to swing widely and pose a safety hazard. Manually moving objects is time-consuming and labor-intensive. Therefore, it is very difficult to lift objects under the crane column.

[0004] In view of the above situation, it is necessary to study a device to assist in lifting the objects below the crane column. Utility Model Content

[0005] The main purpose of the utility model is to provide an auxiliary lifting device for lifting of a bridge crane, so as to solve the problem that it is difficult to lift objects under the crane trolley column in the prior art.

[0006] According to one aspect of the utility model, there is provided an auxiliary lifting device for lifting by a bridge crane, comprising:

[0007] A boom having a longitudinally extending main body;

[0008] A main hanging frame, the main hanging frame is fixedly connected to the top of the hanging arm and has a main hanging hole, the main hanging hole is close to the middle area of ​​the hanging arm in the length direction;

[0009] A counterweight hoisting frame, the counterweight hoisting frame is fixedly connected to the top of the boom and has a counterweight hoisting hole, the counterweight hoisting hole is close to the first end of the boom and the distance between the counterweight hoisting hole and the main hoisting hole is consistent with the distance between the main hook head and the auxiliary hook head of the crane;

[0010] A counterweight mounting frame, the counterweight mounting frame is fixedly mounted below the boom and is located directly below the counterweight hoisting hole, and the counterweight mounting frame is used to mount a counterweight block;

[0011] A lifting lug for hanging objects is fixedly mounted on the second end of the hanging arm and is located below the hanging arm, and the lifting lug for hanging objects has a hanging hole.

[0012] According to one embodiment of the utility model, the main body is composed of an upper horizontal plate, a lower horizontal plate and an intermediate vertical plate, the upper end of the intermediate vertical plate is fixedly connected to the upper horizontal plate and the lower end is fixedly connected to the lower horizontal plate, the main lifting frame and the counterweight lifting frame are installed on the upper horizontal plate, and the counterweight mounting frame and the lifting ear are installed on the lower horizontal plate.

[0013] According to an embodiment of the utility model, the main body is made of one "H"-shaped steel, or a plurality of "H"-shaped steels are fixedly connected side by side.

[0014] According to an embodiment of the utility model, the auxiliary sling further comprises a reinforcing rib plate, which is perpendicular to the upper cross plate and installed at a middle position in the width direction of the upper cross plate.

[0015] According to an embodiment of the utility model, the main lifting hole and the counterweight lifting hole are provided on the reinforcing rib plate.

[0016] According to an embodiment of the utility model, the reinforcing rib plate is widest in the middle along the length direction and gradually narrows in the direction extending toward both ends.

[0017] According to one embodiment of the utility model, the counterweight mounting frame has a base plate fixedly mounted on the lower cross plate, the base plate extends parallel to the lower cross plate, the base plate is symmetrically provided with two mounting holes on the laterally outer side of the lower cross plate, the counterweight bolts pass through the mounting holes and fix the counterweight block to the counterweight mounting frame.

[0018] According to an embodiment of the utility model, the auxiliary sling includes a plurality of counterweight blocks, and the plurality of counterweight blocks are stacked up and down.

[0019] According to an embodiment of the utility model, the auxiliary sling also includes a steel wire rope, one end of which passes through the lifting hole and is fixed to the lifting ear, and the other end of the steel wire rope is bound to the object to be lifted.

[0020] According to an embodiment of the utility model, the auxiliary lifting device further comprises a hand chain hoist, the top hook of the hand chain hoist is hung on the lifting hole, and the bottom hook of the hand chain hoist is used to hook the object to be lifted.

[0021] Due to the adoption of the above technical scheme, the auxiliary sling for bridge crane hoisting according to the utility model utilizes the principle of lever, takes the main hoisting hole in the middle position as the support point of the lever, lifts the counterweight by the counterweight hoisting hole at the end, and lifts the object at the other end of the sling, and cooperates with the main hook head and the auxiliary hook head of the crane to realize the hoisting of the object under the crane trolley column, thus widening the hoisting range of the crane. Practice has proved that the auxiliary sling for bridge crane hoisting has a simple structure, is easy to manufacture and use, is safe and applicable, and has a unique structure. It effectively solves the problem that the objects under the crane trolley column cannot be hoisted, and has significant economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0023] Figure 1 The overall structural schematic diagram of an auxiliary lifting device for bridge crane lifting according to one embodiment of the utility model is shown;

[0024] Figure 2 A front view of an auxiliary lifting device for bridge crane lifting according to an embodiment of the utility model is shown;

[0025] Figure 3 A side view of an auxiliary lifting device for bridge crane lifting according to an embodiment of the utility model is shown;

[0026] Figure 4 A top view of an auxiliary lifting device for bridge crane lifting according to an embodiment of the utility model is shown;

[0027] Figure 5 The figure shows the use state of the auxiliary lifting device for bridge crane lifting according to one embodiment of the utility model.

[0028] Description of Reference Numerals

[0029] 10. Boom; 12. Main body; 20. Main lifting frame; 21. Main lifting hole; 30. Counterweight lifting frame; 31. Counterweight lifting hole; 40. Counterweight mounting frame; 41. Base plate; 42. Counterweight bolt; 50. Lifting eye; 51. Lifting hole; 60. Reinforcing rib plate; 100. Auxiliary lifting device; G1. Main hook of crane; G2. Auxiliary hook of crane; W. Cargo. DETAILED DESCRIPTION

[0030] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0031] Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the directions or positions indicated by terms such as "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.

[0032] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0033] In the specification and claims of the utility model and the above-mentioned drawings, when an element is referred to as being "fixed on" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it may be directly or indirectly connected to the other element.

[0034] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] One purpose of the utility model is to provide an auxiliary lifting device for lifting by a bridge crane. Figure 1 The figure shows the overall structure of an auxiliary lifting device for bridge crane lifting according to an embodiment of the utility model. Figure 2 The figure shows the front view of the auxiliary lifting device for bridge crane lifting. Figure 3 A side view of the auxiliary lifting device for bridge crane lifting is shown. Figure 4A top view of the auxiliary lifting device for lifting by a bridge crane is shown.

[0036] like Figures 1 to 4 As shown, the auxiliary lifting device for bridge crane lifting generally includes a lifting arm 10 , a main lifting frame 20 , a counterweight lifting frame 30 , a counterweight mounting frame 40 and a lifting lug 50 .

[0037] The boom 10 is used to support and install various components so as to fix these mechanisms. The chassis 10 has a main body 12 extending longitudinally. In some embodiments, the main body 12 is composed of an upper cross plate, a lower cross plate and an intermediate vertical plate. The upper end of the intermediate vertical plate is fixedly connected to the upper cross plate, and the lower end of the intermediate vertical plate is fixedly connected to the lower cross plate. The upper cross plate and the lower cross plate extend in parallel in the transverse direction to provide a larger space for the assembly of other components. The intermediate vertical plate extends in a direction perpendicular to the upper cross plate and the lower cross plate to support the upper cross plate and the lower cross plate. The intermediate vertical plate is fixedly connected to the middle position in the width direction of the upper cross plate and the lower cross plate. For example, "H"-shaped steel can be used to make the main body 12. The length of the main body 12 can be designed according to the actual needs on site. It is also possible to select the model of the "H"-shaped steel according to the weight of the hanging object and / or to use multiple "H"-shaped steels fixedly connected side by side.

[0038] The main hanging frame 20 is fixedly connected to the top of the boom 10, and has a main hanging hole 21. In one embodiment, the main hanging frame 20 can be a semicircular ring ear piece welded on the upper surface of the main body 12, and the ring hole can be used as the main hanging hole 21. The main hanging hole 21 is used as a supporting point of the lever, and is arranged in the middle area close to the length direction of the boom 10. When in use, the main hanging hole 21 is hung on the auxiliary hook head of the crane.

[0039] The counterweight hanging frame 30 is fixedly connected to the top of the boom 10, and has a counterweight hanging hole 31. In one embodiment, the counterweight hanging frame 30 can be a semicircular ring ear piece welded on the upper surface of the main body 12, and the ring hole can be used as the counterweight hanging hole 31. The counterweight hanging hole 31 is close to the first end of the boom 10, and the distance between the counterweight hanging hole 31 and the main hanging hole 21 is consistent with the distance between the main hook head and the auxiliary hook head of the crane. When in use, the counterweight hanging hole 31 is hung on the main hook head of the crane.

[0040] The counterweight mounting frame 40 is used to mount the counterweight block 43 so that the auxiliary sling can maintain balance when lifting objects. The counterweight mounting frame 40 is fixedly mounted below the boom 10, and the position of the counterweight mounting frame 40 is aligned with the position of the counterweight hanging hole 31. The counterweight mounting frame 40 can be set directly below the counterweight hanging hole 31 to control the entire structure to maintain balance.

[0041] The object hanging eye 50 is used to provide a hanging point for the object. The object hanging eye 50 is fixedly mounted on the second end of the suspension arm 10 and is located below the suspension arm 10. The object hanging eye 50 has a hanging hole 51.

[0042] Optionally, in some embodiments, Figure 1 As shown, the auxiliary sling may further include a reinforcing rib plate 60. The reinforcing rib plate 60 is perpendicular to the upper cross plate and is installed in the middle position of the width direction of the upper cross plate. In this case, both the main lifting hole 21 and the counterweight lifting hole 31 can be opened on the reinforcing rib plate 60, without the need to set up a separate main lifting frame 20 and counterweight lifting frame 30. The reinforcing rib plate 60 may be in the shape of a plate, and its plate width may gradually change in the length direction so as to meet the strength while saving materials and weight. Specifically, the plate width is the widest in the middle position in the length direction and gradually narrows in the direction extending to both ends. The main lifting hole 21 is opened in the middle position of the reinforcing rib plate 60, and the counterweight lifting hole 31 is opened near one end of the reinforcing rib plate 60.

[0043] Optionally, in some embodiments, the counterweight mounting frame 40 has a base plate 41 fixedly mounted on the lower transverse plate, for example, the base plate 41 can be welded on the lower transverse plate. The base plate 41 extends parallel to the lower transverse plate. The base plate 41 is symmetrically provided with two mounting holes on the lateral outer side of the lower transverse plate, and the counterweight bolt 42 passes through the mounting holes and fixes the counterweight block 43 on the counterweight mounting frame 40. For example, the screw of the counterweight bolt 42 can be inserted into the mounting hole from the upper surface of the base plate 41, so that the head of the counterweight bolt 42 abuts against the upper surface of the base plate 41. The counterweight block 43 is provided with a hole for inserting the counterweight bolt 42, and the counterweight block 43 is sleeved on the counterweight bolt 42 from the bottom of the base plate 41, and then the nut is installed on the counterweight bolt 42 and tightened to fix the counterweight block. The required counterweight can be calculated according to the weight of the hanging object, and multiple counterweight blocks 43 can be used in combination, and multiple counterweight blocks 43 are sleeved on the counterweight bolt 42 in an overlapping manner.

[0044] Optionally, in some embodiments, the auxiliary lifting device further comprises a steel wire rope, one end of which passes through the lifting hole 51 and is fixed to the lifting lug 50, and the other end of which is bound to the object to be lifted. In some embodiments, a hand chain hoist can also be used to pull and hang the object, and the top hook of the hand chain hoist can be hung on the lifting hole 51 using a steel wire rope, etc., and the bottom hook of the hand chain hoist is used to hook the object to be lifted.

[0045] Figure 5The diagram of the use state of the auxiliary sling 100 for bridge crane hoisting according to an embodiment of the utility model is shown. Since the boom 10 has a certain length, it can be extended to the blind spot where the main hook G1 and the auxiliary hook G2 of the crane are difficult to fall vertically. When using the auxiliary sling, the main hook G1 of the crane is hung in the counterweight hoisting hole 31, and the auxiliary hook G2 of the crane is hung in the main hoisting hole 21. The required counterweight block is calculated according to the counterweight of the cargo W to be hoisted, and the counterweight block is installed on the counterweight mounting frame 40 and fixed. A wire rope or a hand winch is installed on the hoisting hole 51, and the cargo W to be hoisted is fixed to the wire rope or the hand winch, and then the hoisting can be carried out.

[0046] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0048] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An auxiliary lifting device for bridge crane lifting, characterized in that: include: A boom (10), the boom (10) having a longitudinally extending main body (12); A main hanging frame (20), the main hanging frame (20) is fixedly connected to the top of the hanging arm (10) and has a main hanging hole (21), and the main hanging hole (21) is close to the middle area of ​​the hanging arm (10) in the length direction; a counterweight hoisting frame (30), the counterweight hoisting frame (30) being fixedly connected above the boom (10) and having a counterweight hoisting hole (31), the counterweight hoisting hole (31) being close to the first end of the boom (10) and the distance between the counterweight hoisting hole (31) and the main hoisting hole (21) being consistent with the distance between the main hook head and the auxiliary hook head of the crane; A counterweight mounting frame (40), the counterweight mounting frame (40) being fixedly mounted below the boom (10) and located directly below the counterweight hoisting hole (31), the counterweight mounting frame (40) being used to mount a counterweight block; A lifting eye (50) for hanging objects, wherein the lifting eye (50) is fixedly mounted on the second end of the hanging arm (10) and is located below the hanging arm (10), and the lifting eye (50) has a hanging hole (51).

2. The auxiliary lifting device for bridge crane lifting according to claim 1, characterized in that: The main body (12) is composed of an upper transverse plate, a lower transverse plate and an intermediate vertical plate, the upper end of the intermediate vertical plate is fixedly connected to the upper transverse plate and the lower end is fixedly connected to the lower transverse plate, the main hanging frame (20) and the counterweight hanging frame (30) are installed on the upper transverse plate, and the counterweight mounting frame (40) and the hanging lug (50) are installed on the lower transverse plate.

3. The auxiliary lifting device for bridge crane lifting according to claim 2, characterized in that: The main body (12) is made of a single H-shaped steel, or a plurality of H-shaped steels are fixedly connected side by side.

4. The auxiliary lifting device for bridge crane lifting according to claim 2, characterized in that: The auxiliary lifting device also includes a reinforcing rib plate (60), which is perpendicular to the upper transverse plate and installed in the middle position of the upper transverse plate in the width direction.

5. The auxiliary lifting device for bridge crane lifting according to claim 4, characterized in that: The main hoisting hole (21) and the counterweight hoisting hole (31) are provided on the reinforcing rib plate (60).

6. The auxiliary lifting device for bridge crane lifting according to claim 5, characterized in that: The reinforcing rib plate (60) is widest at the middle position along the length direction and gradually narrows in the direction extending towards the two ends.

7. The auxiliary lifting device for bridge crane lifting according to claim 2, characterized in that: The counterweight mounting frame (40) comprises a base plate (41) fixedly mounted on the lower transverse plate, the base plate (41) extending parallel to the lower transverse plate, the base plate (41) being symmetrically provided with two mounting holes on the transverse outer side of the lower transverse plate, the counterweight bolts (42) passing through the mounting holes and fixing the counterweight block on the counterweight mounting frame (40).

8. The auxiliary lifting device for bridge crane lifting according to claim 1, characterized in that: The auxiliary sling comprises a plurality of counterweight blocks, and the plurality of counterweight blocks are stacked up and down.

9. The auxiliary lifting device for bridge crane lifting according to claim 1, characterized in that: The auxiliary lifting device also includes a steel wire rope, one end of which passes through the lifting hole (51) and is fixed to the lifting lug (50), and the other end of the steel wire rope is bound to the object to be lifted.

10. The auxiliary lifting device for bridge crane lifting according to claim 1, characterized in that: The auxiliary lifting device also includes a hand chain hoist, the top hook of the hand chain hoist is hung on the lifting hole (51), and the bottom hook of the hand chain hoist is used to hook the object to be lifted.

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