CN204211397U - Assembly type standard knot - Google Patents

Abstract

An assembled standard segment, which is mainly composed of four standard segments connected to each other in sequence. The standard segment includes a main rotating rod, and the upper, middle and lower sides of the main rotating rod are respectively There is an upper slant bar, a middle cross bar and a lower slant bar connected to each other, and the other ends of the upper slant bar, middle cross bar and down slant bar are connected with a piece of connecting piece parallel to the main rotating rod at the same time; The rod is 90 degrees from the side where the upper slant bar, the middle cross bar and the lower slant bar are installed, and a fixed piece matching the connecting piece is welded on the side; the main rotating rod is a square tube, and one end is provided with a The protruding connecting head, the other end is provided with a connecting hole for connecting the connecting head; one side of the upper or lower part of the main rotating rod is connected with a horizontal sub-rod, and the other end of the horizontal sub-rod is connected There is a connecting square piece, and a vertical connecting rod is connected between the connecting square piece and the connecting piece; it has the advantages of simple structure, convenient installation and use, good structural fastness and high strength, can reduce transportation costs, and can be conveniently Features such as disassembly and assembly.

Description

Assembled standard section

technical field

The utility model relates to an assembled standard section for a tower crane, which belongs to the technical field of crane machinery.

Background technique

The tower body of a tower crane is usually connected by a series of standard sections, so the standard section is one of the most critical stress components on the crane. It must bear the working load of the crane and the self-weight of the upper structure of the tower. load, and the load brought by the wind resistance of the tower, so the standard section needs to have sufficient strength and rigidity. Based on the above considerations, the existing standard sections are basically composed of fixed installations, and the connections between the various components are firm to ensure that they have sufficient strength and rigidity. However, the existing tower cranes are assembled by transporting various components including standard parts to the site for installation by large vehicles. Since the standard sections are made according to the standards, each standard section occupies a relatively large volume, obviously Increased shipping costs.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a simple structure, convenient installation and use, good structural fastness, high strength, can reduce transportation costs, and can be easily assembled and disassembled.

The purpose of this utility model is accomplished through the following technical proposals. The assembled standard section is mainly composed of four standard segments connected to each other in sequence, and the standard segment includes a main rotating rod , one side of the upper, middle and lower parts of the main rotating rod is respectively connected with an up-slope bar, a middle cross-bar and a down-slope bar, and the other ends of the up-slope bar, middle cross-bar and down-slope bar are simultaneously There is a piece of connecting piece that is parallel to the main rotating rod; on the other side of the main rotating rod that is 90 degrees from the side where the upper slanting rod, the middle cross bar and the lower slanting rod are installed, a piece is welded to match the connecting piece and The fixed piece that can be fixedly connected with the connecting piece by bolts.

The main rotating rod described in the utility model is a square tube, one end of which is provided with a protruding connector, and the other end is provided with a connecting hole for the connector to be plugged in; one of the upper or lower parts of the main rotating rod There is a horizontal auxiliary rod connected to the side, and a connecting square piece is connected to the other end of the horizontal auxiliary rod. A vertical connecting rod is connected between the connecting square piece and the connecting piece, and the main rotation On the same side of the rod as the fixed piece, there is a fixed square piece that matches the connecting square piece and can be fixedly connected with the connecting square piece by bolts.

The connecting piece described in the utility model is a rectangular connecting piece, and the other ends of the upper slanting bar, the middle horizontal bar and the lower slanting bar are sequentially connected to one side of the rectangular connecting piece from top to bottom, and the connecting piece and the fixing piece, Corresponding bolt holes are provided on the connecting square piece and the connecting square piece respectively; the horizontal sub-rod is fixedly connected to the upper part of the main rotating rod; the upper end of the main rotating rod is provided with a connecting head, and a connecting hole is provided at its lower end , and on the connecting head and the connecting hole, there are bolt fixing holes corresponding to the connecting head and the connecting hole in the transverse direction.

The connecting piece and the fixing piece, the connecting square piece and the connecting square piece are respectively connected by bolts to the adjacent standard sections to form a standard section, and the upper ends and opposite corners of the two oppositely arranged main rotating rods are respectively An outwardly protruding connecting plate is welded, and an embedding plate which can embed two connecting plates on the same straight line from above is arranged between the two connecting plates, and the two connecting plates are fixedly connected together after being fixed with bolts.

The utility model belongs to an improvement on the prior art, and has the characteristics of simple structure, convenient installation and use, good structural fastness, high strength, reduced transportation cost, and convenient disassembly and assembly.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a schematic diagram of the structure along the direction A of Fig. 1 .

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings: as shown in Figures 1 and 2, a kind of assembled standard section described in the utility model is mainly composed of four standard sections 1 which are connected in sequence. The standard segment 1 includes a main rotating rod 2, and one side of the upper, middle and lower parts of the main rotating rod 2 is respectively connected with an upper inclined rod 3, a middle horizontal rod 4 and a lower inclined rod 5, and the The other ends of the upper slant bar 3, the middle cross bar 4, and the lower slant bar 5 are simultaneously connected with a piece of connecting piece 6 that is parallel to the main swing bar 2; The side of cross bar 4 and down slant bar 5 is welded on the side of 90 degrees and matches with described connecting piece 6 and available bolt is fixedly connected fixed piece 7 with connecting piece.

As shown in the figure, the main rotating rod 2 is a square tube, one end of which is provided with a protruding connector 8, and the other end is provided with a connecting hole 9 for the connector to be inserted into; the main rotating rod 2 One side of the upper or lower part of the upper or lower part is connected with a horizontal sub-rod 10, and the other end of the horizontal sub-rod 10 is connected with a connecting square piece 11, and a connection square piece 11 is connected with the connecting piece 6. A vertical connecting rod 12, and on the same side of the main rotating rod 2 as the fixed piece 7, there is a fixed square piece that matches the connecting square piece 11 and can be fixedly connected with the connecting square piece by bolts. Sheet 13.

The connecting piece 6 is a rectangular connecting piece, and the other ends of the upper slanting bar 3, the middle cross bar 4 and the lower slanting bar 5 are sequentially connected to one side of the rectangular connecting piece 6 from top to bottom. Corresponding bolt holes 14 are respectively provided on the fixed piece 7, the connecting square piece 11 and the fixed square piece 13; the horizontal sub-rod 10 is fixedly connected to the upper part of the main rotating rod 2; the upper end of the main rotating rod 2 is provided with The connecting head 8 is provided with a connecting hole 9 at its lower end, and a bolt fixing hole 15 for penetrating and fixing is formed correspondingly on the connecting head 8 and the connecting hole 9 in the transverse direction.

The connecting piece 6 and the fixing piece 7 described in the utility model, the connecting square piece 11 and the fixing square piece 13 respectively connect the adjacent standard section pieces 1 through bolts to form a standard section, in which two oppositely arranged main rotating rods 2 An outwardly protruding connecting plate 16 is respectively welded on the upper end and opposite corners of the upper end, and an embedding plate 17 that can embed two connecting plates on the same straight line from above is arranged between the two connecting plates 16, and after being fixed with bolts The two connecting plates 16 are firmly connected together.

Claims (4)

1. an assembly type standard knot, it is connected in sequence mutually primarily of four standard nodal plates, it is characterized in that described standard nodal plate comprises a main swing arm, one side in the upper, middle and lower portion of this main swing arm is connected to respectively upper brace, middle cross bar and a lower brace, and the other end of described upper brace, middle cross bar and lower brace is connected to the connecting strap of a slice and main swing arm horizontal simultaneously; Main swing arm another with install brace, middle cross bar and the side of lower brace and become 90 degree of sides are welded a slice and to match with described connecting strap and the fixed plate that is fixedly connected with connecting strap of available bolt.

2. assembly type standard knot according to claim 1, it is characterized in that described main swing arm is a square tube, its one end is provided with the connector of evagination, and the other end is provided with can for the connecting bore of connector grafting; The top of described main swing arm or a side of bottom are connected to the secondary bar of a level, the other end of the secondary bar of this level is connected to one piece and connects square piece, be connected to a vertical joint bar between this connection square piece and described connecting strap, and be in described fixed plate on described main swing arm and same side be welded a slice and match and available bolt and the fixing square piece being connected square piece and being fixedly connected with the described square piece that is connected.

3. assembly type standard knot according to claim 1 and 2, it is characterized in that described connecting strap is oblong connecting strap, the other end of upper brace, middle cross bar and lower brace is connected to one side of described oblong connecting strap from top to bottom in turn, described connecting strap and fixed plate, is connected square piece with being connected in square piece and offers bolt hole accordingly respectively; The secondary bar of described level is fixedly connected at the top of main swing arm; The upper end of described main swing arm is provided with connector, and is provided with connecting bore in its lower end, and laterally starts accordingly to have on described connector and connecting bore and wear the fixed bolt fixing hole of fixed.

4. assembly type standard knot according to claim 3, it is characterized in that described connecting strap and fixed plate, be connected square piece and be connected square piece, respectively by bolt, adjacent standard nodal plate connected to form standard knot, the upper end of two main swing arms positioned opposite, the relative arm of angle are welded with the connecting panel of an evagination respectively wherein, be configured with between two pieces of connecting panels one can from embed two pieces be in same straight line upper junction plate be embedded plate, and fixing with bolt after two pieces of connecting panels are fixed together.