A shore bridge beam

Abstract

The present invention provides a quay crane beam, comprising: a beam body, comprising an upper truss and a lower truss, an installation space being formed between the upper truss and the lower truss; a drag chain bracket, the drag chain bracket being arranged in the installation space and fixed on the upper truss, the drag chain bracket being arranged along the length direction of the beam body, and being used to support the drag chain so that the drag chain is located in the installation space. The quay crane beam of the present invention effectively reduces the overall height of the quay crane by arranging the drag chain bracket in the installation space on the side of the upper truss facing the lower truss, thereby meeting the height requirement of low-profile container transportation equipment.

Description

Technical Field

[0001] The invention relates to the field of port loading and unloading equipment, and in particular to a quayside bridge beam. Background Art

[0002] The quay crane is the main equipment in the process of container loading and unloading. Due to historical and geographical conditions and multi-modal collection and distribution considerations, many container terminals in the world are built near airports, making the entire terminal below the air line, so there are strict restrictions on the height of crane equipment. The drag chain system is the power supply device of the crane beam sliding system and is one of the important subsystems in the quay crane components. Among them, the drag chain bracket is used to carry the drag chain. The drag chain bracket is welded to the upper part of the beam as a whole. At the same time, the drag chain bracket participates in the stress and deformation of the beam, resulting in unclear local stress on the beam structure, and the height protrudes from the beam, which cannot meet the height restriction requirements of the low-profile quay crane. Summary of the invention

[0003] In view of this, the present invention provides a quay crane beam to solve the problem that the drag chain bracket is installed on the upper part of the beam, resulting in excessive height.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A quay crane girder according to an embodiment of the present invention includes:

[0006] The beam body comprises an upper truss and a lower truss, and an installation space is formed between the upper truss and the lower truss;

[0007] The drag chain bracket is arranged in the installation space and fixed on the upper truss. The drag chain bracket is arranged along the length direction of the beam body and is used to support the drag chain so that the drag chain is located in the installation space.

[0008] In one embodiment of the present invention, the drag chain bracket is divided into multiple sections, and the multiple sections of the drag chain bracket are connected end to end in pairs and are arranged on a side of the upper truss close to the lower truss.

[0009] In one embodiment of the present invention, each drag chain bracket comprises:

[0010] A flange plate is fixedly connected to a side of the upper truss close to the lower truss;

[0011] The grooved tube is fixedly connected to the flange plate.

[0012] In one embodiment of the present invention, the quay crane girder further comprises:

[0013] The fixing assembly includes a first fixing tube and a second fixing tube. The first fixing tube is fixedly connected to the upper truss and the first end of the slot tube, respectively, and is used to fix the first end of the slot tube on the upper truss.

[0014] The second fixed pipe is fixedly connected to the upper truss and is used for being movably connected to the second end of the groove pipe.

[0015] In one embodiment of the present invention, the quay bridge girder further comprises: a support arm, one end of the support arm is fixedly connected to the second fixed pipe, and the other end of the support arm is formed with a movable latch;

[0016] A slot is arranged at the second end of the slot tube, and a latch is installed in the slide slot so that the support arm is movably connected to the slot tube.

[0017] In one embodiment of the present invention, the first fixed pipe and the second fixed pipe are channel steel pipes.

[0018] In one embodiment of the present invention, the beam body comprises:

[0019] A plurality of longitudinal braces are arranged at intervals between the upper truss and the lower truss, one end of the longitudinal braces is fixedly connected to the lower truss, and the other end is fixedly connected to the tow chain bracket.

[0020] In one embodiment of the invention, the longitudinal support is formed as a tripod.

[0021] The above technical solution of the present invention has at least one of the following beneficial effects:

[0022] 1. The quay crane girder of the present invention arranges the tow chain bracket on the side of the upper truss close to the lower truss, so that the tow chain bracket is located in the installation space formed by the upper truss and the lower truss, thereby effectively reducing the overall height of the quay crane;

[0023] 2. The quay crane beam of the present invention has a drag chain bracket divided into multiple sections, and the multiple drag chain brackets are connected end to end and arranged on the side of the upper truss close to the lower truss, making full use of part of the upper structure of the beam and effectively reducing the weight of the drag chain bracket;

[0024] 3. For the quay crane beam of the present invention, one end of the tow chain bracket is connected to the upper truss by welding, and the other end is movably connected to the upper truss by a support arm, thereby avoiding the stress of the beam structure, releasing the influence of the tow chain bracket on the deformation and stress of the beam structure, and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the side structure of a quay crane girder according to an embodiment of the present invention;

[0026] Figure 2 For the embodiment of the present invention Figure 1 Top view of the quay crane girder at the middle AA angle;

[0027] Figure 3 For the embodiment of the present invention Figure 1 Cross-section view of the quay crane girder at the mid-CC position;

[0028] Figure 4 It is a schematic cross-sectional structural diagram of a drag chain bracket of a quay crane girder according to an embodiment of the present invention;

[0029] Figure 5 For the embodiment of the present invention Figure 2 Side view of the drag chain bracket of the quay crane beam at a medium BB angle.

[0030] Figure numerals: 100, beam body; 101, upper truss; 102, lower truss; 110, drag chain bracket; 111, flange plate; 112, groove tube; 121, first fixed tube; 122, second fixed tube; 130, support arm; 131, movable pin; 140, longitudinal support frame. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0032] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0033] The quay crane is the main equipment in the process of container loading and unloading, and plays a very important role in the process. Due to historical and geographical conditions and multimodal collection and distribution considerations, many container terminals in the world are built near airports, resulting in the entire terminal being below the air line. Therefore, there are strict restrictions on the height of crane equipment, and the demand for low-profile container transportation equipment in trade ports is becoming more and more urgent. At present, with the improvement of the carrying capacity of ships, how to obtain the lifting height under the spreader as much as possible while ensuring that the height of the whole machine is subject to specific restrictions has become a focus of great concern for users of such terminals. It is very important to develop a new generation of low-profile cranes to adapt to new requirements. The drag chain system is the power supply device of the crane beam sliding system and is one of the important subsystems of the quay crane components. Its layout and size directly affect the height of the low-profile crane. For the old generation of low-profile quay cranes, the drag chain bracket is integrally welded on the upper part of the beam and participates in the stress and deformation of the beam, resulting in unclear local stress on the beam structure, and the height direction protrudes from the beam, which cannot meet the ultimate height limit requirements of some projects.

[0034] In order to solve the above problems, the present invention provides a quay crane beam.

[0035] Firstly, a quay crane girder according to the present invention will be described in detail below with reference to the accompanying drawings.

[0036] like Figure 1 and Figure 2 As shown, a quay crane beam according to an embodiment of the present invention includes: a beam body 100 and a drag chain bracket 110. The beam body 100 includes an upper truss 101 and a lower truss 102, and an installation space is formed between the upper truss 101 and the lower truss 102; the drag chain bracket 110 is arranged in the installation space and fixed on the upper truss 101. The drag chain bracket 110 is arranged along the length direction of the beam body 100 to support the drag chain so that the drag chain is located in the installation space. Specifically, the drag chain bracket 110 is arranged on a side of the upper truss 101 close to the lower truss 102. The drag chain bracket 110 is located inside the beam, that is, in the installation space. At this time, there is no protrusion on the upper part of the beam, thereby reducing the overall height of the quay crane and meeting the height restriction requirements of the terminal for low-profile quay cranes.

[0037] like Figure 1 and Figure 2As shown, in one embodiment of the present invention, the drag chain bracket 110 is divided into multiple sections, and the multiple sections of the drag chain bracket 110 are connected end to end and arranged on the side of the upper truss 101 close to the lower truss 102. Specifically, a plurality of support frames arranged at intervals are formed on the beam body 100, and the plurality of support frames are arranged along the length direction of the upper truss 101 and the lower truss 102. At this time, the drag chain bracket 110 can be divided into multiple sections, and the ends of the drag chain bracket 110 are respectively connected to the support frames and arranged on the side of the upper truss 101 close to the lower truss 102. Therefore, by dividing the drag chain bracket 110 into multiple sections and making full use of the partial structure of the upper truss 101, the weight of the drag chain bracket 110 is effectively reduced.

[0038] like Figure 3 and Figure 4 As shown, in one embodiment of the present invention, each section of the drag chain bracket 110 includes: a flange plate 111 and a groove tube 112. The flange plate 111 is fixedly connected to the side of the upper truss 101 close to the lower truss 102; the groove tube 112 is fixedly connected to the flange plate 111. Specifically, the width of the flange plate 111 is greater than the width of the groove tube 112, and the flange plate 111 is fixedly connected to the side of the upper truss 101 close to the lower truss 102, which can effectively increase the welding surface connection between the drag chain bracket 110 and the upper truss 101, effectively improve the connection strength between the drag chain bracket 110 and the upper truss 101, and provide a stable bearing capacity. As a result, the drag chain bracket 110 can stably carry the drag chain, improving the safety performance.

[0039] like Figure 4 and Figure 5 As shown, in one embodiment of the present invention, the quay crane girder further includes: a fixing assembly. The fixing assembly includes: a first fixing pipe 121 and a second fixing pipe 122. The first fixing pipe 121 is fixedly connected to the first end of the upper truss 101 and the groove pipe 112, respectively, and is used to fix the first end of the groove pipe 112 on the upper truss 101, and the second fixing pipe 122 is fixedly connected to the upper truss 101, and is used to be movably connected to the second end of the groove pipe 112. Specifically, the first fixing pipe 121 and the second fixing pipe 122 are symmetrically arranged at both ends of the drag chain bracket 110, and the first fixing pipe 121 is welded to the first end of the upper truss 101 and the groove pipe 112, respectively, so as to fix the first end of the drag chain bracket 110 on the side of the upper truss 101 close to the lower truss 102, and the second fixing pipe 122 is welded to the upper truss 101, and is movably connected to the second section of the drag chain bracket 110 at the bottom. Therefore, one end of a single drag chain bracket 110 is fixedly connected to the upper truss 101, and the other end is movably connected to the upper truss 101. When the quay crane beam body 100 moves, the drag chain bracket 110 is avoided from participating in the force of the beam body 100, and the influence of the drag chain bracket 110 on the structural deformation and force of the beam body 100 is fully released, thereby further improving safety.

[0040] like Figure 5 As shown, in one embodiment of the present invention, the quay crane beam further includes: a support arm 130, one end of the support arm 130 is fixedly connected to the second fixed tube 122, and the other end is formed with a movable pin 131; the second end of the slot tube 112 is provided with a slot, and the pin is installed in the slide slot so that the support arm 130 is movably connected to the slot tube 112. Specifically, the support arm 130 is installed below the second fixed tube 122, one end of the support arm 130 is fixedly connected to the second fixed tube 122, and the other end is inserted into the slot through the movable pin 131 to be movably connected to the slot tube 112. In this way, while fully fixing the drag chain bracket 110, the drag chain bracket 110 is prevented from participating in the stress of the beam body 100 structure, and the influence of the drag chain bracket 110 on the deformation and stress of the beam body 100 structure is released, and the safety is further improved.

[0041] In one embodiment of the present invention, the first fixed pipe 121 and the second fixed pipe 122 are channel steel pipes. Specifically, the channel steel pipe has a light structure, good mechanical properties, and small internal stress. Therefore, the weight of the quay crane beam can be reduced while stably supporting the drag chain bracket 110.

[0042] In one embodiment of the present invention, the beam body 100 includes: a plurality of longitudinal braces 140. The plurality of longitudinal braces 140 are arranged at intervals between the upper truss 101 and the lower truss 102, and one end is fixedly connected to the lower truss 102, and the other end is fixedly connected to the drag chain bracket 110. Specifically, the longitudinal brace 140 is formed as a hollow tripod, which is light in weight and has a stable structure, and can stably carry the drag chain bracket 110. Therefore, by using the longitudinal brace 140 formed as a tripod, while further reducing the deadweight of the quay crane beam, the stability of the quay crane beam is effectively improved, and the weight of the drag chain bracket 110 can be stably supported.

[0043] The quay crane beam of the present invention effectively reduces the overall height of the quay crane by arranging the tow chain bracket 110 on the side of the upper truss 101 close to the lower truss 102, so that the tow chain bracket 110 is located in the installation space formed by the upper truss 101 and the lower truss 102. At the same time, the tow chain bracket 110 is divided into multiple sections, and the multiple sections of the tow chain bracket 110 are connected end to end and arranged on the side of the upper truss 101 close to the lower truss 102, making full use of part of the upper structure of the beam, and effectively reducing the weight of the tow chain bracket 110. In addition, one end of the tow chain bracket 110 is connected to the upper truss 101 by welding, and the other end is movably connected to the upper truss 101 by the support arm 130, thereby avoiding the stress of the beam structure, releasing the influence of the tow chain bracket 110 on the deformation and stress of the beam structure, and improving safety.

[0044] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A quay crane beam, include: The beam body includes an upper truss and a lower truss, and an installation space is formed between the upper truss and the lower truss; A drag chain bracket, the drag chain bracket is arranged in the installation space and fixed on the upper truss so that the drag chain bracket is located inside the beam. The drag chain bracket is arranged along the length direction of the beam body and is used to support the drag chain so that the drag chain is located in the installation space. The drag chain bracket is divided into multiple sections, and the multiple sections of the drag chain bracket are connected end to end and arranged on the side of the upper truss close to the lower truss. Each section of the drag chain bracket includes a flange plate fixedly connected to the side of the upper truss close to the lower truss and a groove tube fixedly connected to the flange plate. The width of the flange plate is greater than the width of the groove tube. One end of a single drag chain bracket is fixedly connected to the upper truss, and the other end is movably connected to the upper truss. A fixing assembly, comprising a first fixing tube and a second fixing tube, the first fixing tube and the second fixing tube are symmetrically arranged at two ends of the drag chain bracket, the first fixing tube is fixedly connected to the upper truss and the first end of the slot tube respectively, and is used to fix the first end of the slot tube to the upper truss, and the second fixing tube is fixedly connected to the upper truss and is used to be movably connected to the second end of the slot tube; A support arm, one end of the support arm is fixedly connected to the second fixed tube, and the other end is formed with a movable pin, and the second end of the groove tube is provided with a slot, and the movable pin is installed in the slot, so that the support arm is movably connected to the groove tube, and the support arm is installed below the second fixed tube; Among them, a plurality of support frames arranged at intervals are formed on the main beam body, and the plurality of support frames are arranged along the length direction of the upper truss and the lower truss, and the first and last ends of each drag chain bracket are respectively connected to the support frames and arranged on one side of the upper truss close to the lower truss; The beam body includes: A plurality of longitudinal braces are arranged at intervals between the upper truss and the lower truss, one end of the longitudinal braces is fixedly connected to the lower truss, and the other end is fixedly connected to the tow chain bracket.

2. The quay crane girder according to claim 1, It is characterized in that The first fixed pipe and the second fixed pipe are channel steel pipes.

3. The quay crane girder according to claim 1, It is characterized in that The longitudinal support is formed as a tripod.

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