Parallel operation connecting device of bridge crane

Abstract

The utility model discloses a bridge crane parallel operation connecting device which comprises a connecting frame and a connecting lug seat, the connecting frame is of an H-shaped structure, first connecting through holes are formed in the two ends of the connecting frame, the connecting lug seat is fixed to a crane, a second connecting through hole is formed in the connecting lug seat, and the second connecting through hole is communicated with the first connecting through hole. The second connecting through hole is matched with the first connecting through hole; the device further comprises a pin shaft, the pin shaft is matched with the first connecting through hole and the second connecting through hole, the pin shaft is installed in the first connecting through hole and the second connecting through hole in a penetrating mode, and the end of the pin shaft is locked through a double-round nut. By means of the parallel operation connecting device, rigid connection between two bridge cranes for lifting can be achieved, and the connecting device is convenient to assemble and disassemble due to the structural design; and after lifting is finished, the connecting device can be quickly dismantled to relieve parallel operation, the existing structure of the crane cannot be damaged, and the connecting device can be repeatedly used.

Description

Technical Field

[0001] This utility model relates to the field of bridge crane technology, and specifically to a bridge crane parallel connection device. Background Technology

[0002] The generator stator is an important component of the generator. The generator stators in the main powerhouse of steam turbine generator sets and hydro turbine generator sets are characterized by large unit weight, high installation precision, and high construction difficulty.

[0003] It is common practice to use one or two bridge cranes installed in the main plant to lift and position the generator stator, either by a single crane or by two cranes. When using two bridge cranes for lifting, the two cranes need to be rigidly connected and operated in parallel. After removing the anti-collision device (or rail sweeping device components) of the trolley on site, the two bridge cranes are rigidly connected by direct structural welding using profiles such as channel steel on the end beams of the cranes to be operated in parallel.

[0004] After the generator stator is hoisted, the steel used for rigid connection is removed by gas cutting. During subsequent maintenance, when the stator is lifted and moved together, welding and cutting must be repeated. This construction method may damage the original structure of the crane and also increases the workload on site and the risk of working at height. Utility Model Content

[0005] This utility model aims to solve some problems existing in the prior art. Therefore, one objective of this utility model is to provide a connection device that is easy to assemble and disassemble and can be reused, so as to realize the rigid connection of two bridge cranes into parallel operation mode and quickly release it to restore the single-crane operation mode.

[0006] To achieve the above objectives, this utility model proposes:

[0007] A bridge crane parallel connection device includes a connecting frame and a connecting lug. The connecting frame has an H-shaped structure, and both ends of the connecting frame are provided with first connecting through holes. The connecting lug is fixed to the crane, and the connecting lug is provided with a second connecting through hole, which is adapted to the first connecting through hole.

[0008] Preferably, the device also includes a pin, which is adapted to the first connecting through hole and the second connecting through hole. The pin is inserted into the first connecting through hole and the second connecting through hole, and its end is locked with a double round nut.

[0009] Preferably, the connecting frame is provided with several reinforcing members.

[0010] Preferably, the distance between two connecting lugs located at the same corner is equal to the width of the connecting frame.

[0011] The beneficial effects of this utility model are:

[0012] This parallel connection device enables a rigid connection between two lifting bridge cranes. The connection device is designed for easy installation and disassembly. After the lifting operation is completed, the parallel connection can be quickly dismantled without damaging the existing structure of the cranes. Furthermore, the connection device is reusable.

[0013] The features and advantages of this utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a top view of the entire utility model;

[0015] Figure 2 This is an overall side view of the present invention;

[0016] Figure 3 This is a utility model Figure 1 Enlarged view of point A in the image;

[0017] Figure 4 This is a side view of the connecting ear seat of this utility model.

[0018] Reference numerals: 1. Connecting bracket, 101. First connecting through hole, 102. Reinforcing member, 2. Connecting lug, 201. Second connecting through hole, 3. Pin, 4. Crane. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0021] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” includes two, equivalent to at least two. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0022] Please refer to the following for details. Figure 1-4 A bridge crane 4 parallel connection device includes a connecting frame 1 and a connecting lug 2. The connecting frame 1 is an H-shaped structure made of steel plates welded together. Both ends of the connecting frame 1 are provided with first connecting through holes 101. The connecting lug 2 is fixed on the crane 4 (the connecting lug 2 is arranged on the upper surface of the trolley end beams of the two bridge cranes 4 to be paralleled by welding). Four connecting lugs 2 are welded on one crane 4, of which two connecting lugs 2 are located in the same corner and are used in conjunction with the connecting frame 1. The connecting lug 2 is provided with a second connecting through hole 201, which is adapted to the first connecting through hole 101.

[0023] Furthermore, a parallel connection device for a bridge crane 4 also includes a pin 3, which is adapted to the first connecting through hole 101 and the second connecting through hole 201. The pin 3 is inserted into the first connecting through hole 101 and the second connecting through hole 201, and its end is locked with a double round nut.

[0024] Furthermore, the connecting frame 1 is provided with two reinforcing members 102, which are welded to both ends of the connecting frame 1 respectively, thereby improving the firmness of the connecting frame 1.

[0025] Furthermore, the distance between the two connecting lugs 2 located at the same corner is equal to the width of the connecting frame 1. This ensures that the connecting frame 1 and the connecting lugs 2 will not sway left and right when connected, thus ensuring the stability of the two.

[0026] It should be noted that: the length of the connecting frame 1 should be set according to the center distance of the main hooks of the two bridge cranes 4 to be paralleled to meet the lifting and hoisting requirements; and the two bridge cranes 4 to be paralleled need at least two connecting frames 1 to connect them to ensure the connection strength.

[0027] This utility model relates to a parallel connection device for a bridge crane, and its usage method is as follows:

[0028] First, a connecting frame 1 of appropriate length is made, and connecting lugs 2 are welded onto two cranes 4.

[0029] Before on-site construction, remove the anti-collision devices (or rail sweeping device components) parallel to the rails on the relevant end beams of the two parallel cranes 4. When paralleling, align the two ends of the connecting frame 1 with the connecting lugs 2 on the two cranes 4 (align the first connecting through hole 101 and the second connecting through hole), insert the pin 3, and lock the end of the pin 3 with a double round nut. The structural parts of the cranes 4 are rigidly connected by installing this paralleling device. The electrical parts are connected to the two cranes 4 by connecting the communication cable. During paralleling operation, the operation of the two paralleled cranes 4 can be operated simultaneously by any one crane 4. After paralleling is completed, switch the paralleling mode on the linkage platform to single-vehicle mode. Disconnect the paralleling communication cable and remove the connecting frame 1, which means removing the paralleling device and restoring the anti-collision device in the direction of the crane 4.

[0030] 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 merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A parallel connection device for a bridge crane, characterized in that, It includes a connecting frame and a connecting lug. The connecting frame has an H-shaped structure and first connecting through holes are provided at both ends of the connecting frame. The connecting lug is fixed to the crane and has a second connecting through hole, which is adapted to the first connecting through hole.

2. The bridge crane parallel connection device according to claim 1, characterized in that, It also includes a pin, which is adapted to the first connecting through hole and the second connecting through hole. The pin is inserted into the first connecting through hole and the second connecting through hole, and its end is locked with a double round nut.

3. The bridge crane parallel connection device according to claim 2, characterized in that, The connecting frame is equipped with several reinforcing components.

4. The bridge crane parallel connection device according to claim 3, characterized in that, The distance between two connecting lugs located at the same corner is equal to the width of the connecting frame.

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