Sectional connecting structure for rotary internal climbing of tower crane

Abstract

The utility model discloses a tower crane rotation internal climbing segmented connecting structure which comprises a rotation mechanism, the rotation mechanism comprises an upper support and a lower support which are rotatably connected, the tower crane rotation internal climbing segmented connecting structure further comprises an upper ladder and a lower ladder, the upper ladder is installed on the upper support, and the lower ladder is installed on the lower support. The bottom of the upper escalator is higher than a lower panel of the upper support, the lower escalator is installed on the lower support, and the top of the lower escalator is lower than an upper panel of the lower support. The ladder is connected in sections through the ladders at the upper end and the lower end, and is applied to occasions where the space in a rotary structure of the tower crane is small and the whole section cannot meet the requirement.

Description

Technical Field

[0001] This application relates to tower cranes, and particularly to a segmented connection structure for the inner climbing of the slewing mechanism of a tower crane. Background Art

[0002] The slewing mechanism of a crane is a key part of the hoisting mechanism. It can convert linear motion into rotary motion, enabling the boom to rotate. Usually, only a single integral ladder is used to connect the slewing part and the standard section. In this structure, when the slewing part rotates, the ladder will also rotate accordingly. Since the lower end of the ladder rotates within the space of the standard section, such a structure has some potential safety hazards; and it may get entangled with the suspended wires. Summary of the Utility Model

[0003] The purpose of the present utility model is to provide a segmented connection structure for the inner climbing of the slewing mechanism of a tower crane. By using upper and lower ladders for segmented connection, it is applied to the occasions where the space inside the slewing structure of the tower crane is small and the requirements for integral inner climbing are not met.

[0004] To achieve the above purpose, the present utility model provides the following technical solutions.

[0005] An embodiment of this application discloses a segmented connection structure for the inner climbing of the slewing mechanism of a tower crane, including a slewing mechanism. The slewing mechanism includes an upper support and a lower support, which are rotatably connected to each other. It further includes an upper ladder and a lower ladder. The upper ladder is installed on the upper support, and the bottom of the upper ladder is higher than the lower panel of the upper support. The lower ladder is installed on the lower support, and the top of the lower ladder is lower than the upper panel of the lower support.

[0006] Preferably, in the above-mentioned segmented connection structure for the inner climbing of the slewing mechanism of a tower crane, connecting plates are formed on both sides of the upper ladder, and the connecting plates are installed on the upper and lower panels of the upper support by bolts.

[0007] Preferably, in the above-mentioned segmented connection structure for the inner climbing of the slewing mechanism of a tower crane, there are 2 lower ladders arranged oppositely.

[0008] Preferably, in the above-mentioned segmented connection structure for the inner climbing of the slewing mechanism of a tower crane, an open split pin is formed on one side of the lower ladder. The open split pin is hung on a pin shaft, and both ends of the pin shaft are connected to an upper clamping plate. A lower clamping plate is connected to the lower part of the upper clamping plate by bolts, and the lower panel of the lower support is clamped between the upper clamping plate and the lower clamping plate.

[0009] Preferably, in the above-mentioned segmented connection structure for the inner climbing of the slewing mechanism of a tower crane, a rib plate is arranged inside the lower support, and the lower ladder is connected to the rib plate by bolts.

[0010] Preferably, in the above-mentioned segmented connection structure of the internal climbing of the tower crane slewing, a steel ring is arranged inside the lower support above the lower escalator.

[0011] Compared with the prior art, the advantage of this technical solution is that through the upper and lower escalators, which are segmented and connected, it is applied to the occasions where the space inside the tower crane slewing structure is small and the whole-section internal climbing does not meet the requirements, preventing some possible entanglements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 The figure shows a schematic diagram of the segmented connection structure of the internal climbing of the tower crane slewing in the embodiment of the present utility model;

[0014] Figure 2 The figure shows a perspective view of the upper support in the embodiment of the present utility model;

[0015] Figure 3 The figure shows a perspective view of the lower support in the embodiment of the present utility model;

[0016] Figure 4 The figure shows a perspective view of the lower support from another angle in the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will combine the drawings in the embodiments of the present utility model to describe the technical solutions in the embodiments of the present utility model in detail. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0018] Combined with Figures 1-4As shown, the sectional connection structure 100 for the internal climbing of the tower crane slewing includes a slewing mechanism, which includes an upper support 101 and a lower support 102. The upper support 101 and the lower support 102 are rotatably connected. It also includes an upper escalator 103 and a lower escalator 104. The upper escalator 103 is installed on the upper support 101, and the bottom of the upper escalator 103 is higher than the lower panel of the upper support 101. The lower escalator 104 is installed on the lower support 102, and the top of the lower escalator 104 is lower than the upper panel of the lower support 102. Connecting plates 105 are formed on both sides of the upper escalator 103, and the connecting plates 105 are installed on the upper panel and the lower panel of the upper support 101 by bolts. There are 2 lower escalators 104 arranged oppositely. An open split pin 106 is formed on one side of the lower escalator 104. The open split pin 106 is hung on a pin shaft 107, and both ends of the pin shaft 107 are connected to an upper clamping plate 108. A lower clamping plate 109 is connected below the upper clamping plate 108 by bolts, and the lower panel of the lower support 102 is clamped between the upper clamping plate 108 and the lower clamping plate 109. A rib plate 110 is arranged inside the lower support 102, and the lower escalator 104 is connected to the rib plate 110 by bolts. A steel ring 111 is arranged above the lower escalator 104 inside the lower support 102.

[0019] In this embodiment, the upper escalator is fixed on the upper support with bolt assemblies through the connecting plates, and the lower end of the escalator does not exceed the lower panel of the upper support, so that the rotation of the upper support will not affect the space of the lower support. Two adjustable escalators are installed on the lower support, which facilitates the staff to adjust to a suitable position for going up and down more quickly. The lower escalator and the upper clamping plate are connected and fixed by a pin shaft and an open split pin; the upper clamping plate and the lower clamping plate are fastened to the lower panel of the lower support by bolts; the position can be adjusted on the lower panel through the upper clamping plate and the lower clamping plate. The rib plate on the lower support is the strengthening and fixing position of the lower escalator. When the staff climbs up and down, the escalator needs to be fixed on the rib plate with bolt assemblies, and at the same time, a steel ring is fixed above for stepping on when passing through.

[0020] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0021] The above are only specific embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A segmented connection structure for the slewing inner climbing of a tower crane, characterized in that: It includes a slewing mechanism, which includes an upper support and a lower support, and the upper support and the lower support are rotatably connected. It also includes an upper escalator and a lower escalator, the upper escalator is installed on the upper support, the bottom of the upper escalator is higher than the lower panel of the upper support, and the lower escalator is installed on the lower support, and the top of the lower escalator is lower than the upper panel of the lower support.

2. The segmented connection structure for the slewing inner climbing of a tower crane according to claim 1 is characterized in that: Connecting plates are formed on both sides of the upper escalator, and the connecting plates are mounted on the upper panel and the lower panel of the upper support by bolts.

3. The segmented connection structure for the slewing inner climbing of a tower crane according to claim 1 is characterized in that: The lower escalators are arranged in two opposite directions.

4. The segmented connection structure for the slewing inner climbing of a tower crane according to claim 1, characterized in that: A cotter pin is formed on one side of the lower escalator, and the cotter pin is hung on a pin shaft. Both ends of the pin shaft are connected to an upper clamping plate. A lower clamping plate is connected to the lower side of the upper clamping plate by bolts, and the lower panel of the lower support is clamped between the upper clamping plate and the lower clamping plate.

5. The segmented connection structure for the slewing inner climbing of a tower crane according to claim 4, characterized in that: A rib plate is arranged inside the lower support, and the lower escalator is connected to the rib plate by bolts.

6. The segmented connection structure for the slewing inner climbing of a tower crane according to claim 1, characterized in that: A steel ring is arranged inside the lower support above the lower escalator.

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