Tower crane upper support structure
Technical Field
The utility model relates to the technical field of tower crane equipment, in particular to a tower crane upper support structure.
Background
When the existing tower crane upper support is connected with an operation platform, two groups of pin shaft holes are symmetrically arranged on the left side and the right side of the joint of the upper support and the operation platform, and each group is two, and when the existing tower crane upper support is connected, the pin shaft holes are firstly butted, and then the pin shafts are fixedly connected in the pin shaft holes.
The upper support mounting structure has the advantages that when the upper support mounting structure is specifically mounted, the space and the size between each group of pin shaft holes and the upper and lower positions between the left and right groups of pin shaft holes are required to be very accurate, so that the requirement on product accuracy during manufacturing is increased, and meanwhile, if the accuracy does not meet the requirement, the mounting is greatly unchanged.
Disclosure of Invention
The utility model aims to provide a tower crane upper support structure, which solves the problems that the prior upper support and the pin shaft hole position at the operation platform have high accuracy requirements, the accuracy requirements of product production are increased, and meanwhile, hidden trouble of inconvenient installation is brought.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tower machine upper bracket structure, includes the upper bracket body and is connected the operation platform that sets up rather than one side horizontal position, still includes:
upright post, upper support ear plate; the upright posts are provided with two groups and are symmetrically arranged on two sides of the operation platform and used for being connected with the upper support ear plates; the upper support lug plate is fixedly arranged on the upper support body at the upright post to be matched with the upright post for use;
the upper end of the upright post is provided with a first pin shaft, and the upper end part of the upper support ear plate is provided with a groove matched with the first pin shaft for use;
the fixing piece is arranged at the joint of the upright post and the upper support ear plate and is positioned right below the first pin shaft;
when the operation platform is installed on the upper support body, the first pin shaft can be placed in the groove to form a rotating fulcrum, so that the operation platform and the upper support body form a rotatable structure, and when the operation platform is fixed, the upright post is rotated to be in a vertical parallel state with the upper support body, and the upright post and the upper support ear plate are fixed through the fixing piece.
Preferably, the fixing piece comprises a second pin shaft, a pin shaft hole and a fixing insertion hole, wherein the pin shaft hole and the fixing insertion hole are respectively arranged on the upright post and the upper support ear plate in a penetrating mode, and when the fixing piece is fixed, the second pin shaft is inserted into the fixing insertion hole and the pin shaft hole to fix the upright post and the upper support ear plate.
Preferably, the upper end of the groove is provided with an opening, so that the first pin shaft is placed in the groove, and the fixing piece is provided with a certain adjusting allowance in fixing due to the arrangement of the opening.
Preferably, the lower end of the upper support body is provided with an elastic withstanding plate for preventing rigid collision with the upper support body when the operation platform shakes.
Preferably, the diameter of the groove is larger than the diameter of the first pin shaft.
Preferably, the pin shaft hole and the fixing jack form an integral connecting through hole to be matched with the second pin shaft to realize fixation when the upright post rotates to be in a vertical state which needs to be fixed with the upper support lug plate.
Preferably, the diameter of the groove is larger than the diameter of the first pin shaft.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the connecting mode of the groove matched with the first pin shaft is adopted to replace the fixing mode of a group of pin shafts above in the prior art, the first pin shaft on the upright post can be placed in the groove to form a rotating pivot, then the adjusting support post is rotated to align the pin shaft hole with the fixing jack, and then the pin shaft hole is fixed through the second pin shaft.
2. According to the utility model, through the arrangement of the elastic retaining plate, when the tower crane works aloft, and shaking is possibly caused by wind power and manual walking, the elastic retaining plate can be abutted with the lower end of the operation platform, so that collision caused by shaking is prevented.
Drawings
FIG. 1 is a general structural diagram of the present utility model;
FIG. 2 is a top view of the overall structure of the present utility model;
FIG. 3 is a schematic view of the connection of the upper support body and the upper support ear plate of the present utility model;
FIG. 4 is a block diagram of the entire upper support ear plate of the present utility model;
fig. 5 is a schematic diagram of the overall structure of the column according to the present utility model.
Reference numerals: 1-an upper support body; 2-an operation platform; 3-stand columns; 31-a first pin; 4-upper support ear plates; 41-grooves; 42-elastic retaining plates; 5-fixing pieces; 51-a second pin; 52-a pin shaft hole; 53-fixed jacks.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a tower machine upper bracket structure, includes upper bracket body 1 and is connected the operation platform 2 that sets up rather than one side horizontal position, still includes:
the upright post 3 and the upper support ear plate 4; the upright posts 3 are provided with two groups and are symmetrically arranged on two sides of the operation platform 2 for being connected with the upper support ear plates 4; the upper support ear plate 4 is fixedly arranged on the upper support body 1 at the upright post 3 to be matched with the upright post 3 for use;
the upper end of the upright post 3 is fixedly provided with a first pin shaft 31, and the upper end part of the upper support ear plate 4 is provided with a groove 41 matched with the first pin shaft 31 for use;
the fixing piece 5 is arranged at the joint of the upright post 3 and the upper support ear plate 4 and is positioned right below the first pin shaft 31;
when the operation platform 2 is installed on the upper support body 1, the first pin shaft 31 can be placed in the groove 41 to form a rotation fulcrum, so that the operation platform 2 and the upper support body 1 can form a rotatable structure, and when the operation platform is fixed, the upright post 3 is rotated to be in a vertical parallel state with the upper support body 1, and the upright post 3 and the upper support ear plate 4 are fixed through the fixing piece 5.
The fixing piece 5 comprises a second pin shaft 51, a pin shaft hole 52 and a fixing insertion hole 53, the pin shaft hole 52 and the fixing insertion hole 53 are respectively penetrated on the upright post 3 and the upper support ear plate 4, and when fixing, the second pin shaft 51 is inserted into the fixing insertion hole 53 and the pin shaft hole 52, so that the upright post 3 and the upper support ear plate 4 are fixed.
The upper end of the groove 41 is opened.
Meanwhile, the lower end of the upper support body 1 is provided with an elastic withstanding plate 42 for preventing rigid collision with the upper support body 1 when the operation platform 2 is swayed.
Further, the diameter of the groove 41 is larger than the diameter of the first pin 31.
Finally, when the upright post 3 rotates to a vertical state which needs to be fixed with the upper support ear plate 4, the pin shaft hole 52 and the fixing insertion hole 53 form an integral connecting through hole so as to be matched with the second pin shaft 51 to realize fixation;
working principle: when the operation platform 2 and the upper support body 1 are installed, the first pin shaft 31 is placed in the groove 41 to form a rotating structure, the rotating structure is rotated until the pin shaft hole 52 and the fixed insertion hole 53 are in butt joint to form a communicated connecting through hole, if at the moment, the positions of the pin shaft hole 52 and the fixed insertion hole 53 have vertical and horizontal position deviations, the upper support position difference of the upright post 3 on the upper support ear plate 4 can be adjusted to a certain extent, the pin shaft hole 52 and the fixed insertion hole 53 are aligned, and then the second pin shaft 51 is inserted into the connecting hole formed by the pin shaft hole 52 and the fixed insertion hole 53, so that the whole structure forms a fixed structure.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.