CN205187705U - Standard festival tenon and main chord member connection structure - Google Patents

Abstract

The utility model discloses a connection structure between a tenon and a main chord of a standard section, which belongs to the field of the connection structure of a standard section of a tower crane, and includes a first standard section which contains a main chord, and also includes a second standard section and a connecting tenon The upper and lower ends of the tenon are respectively provided with a group of pin holes, and each group of pin holes includes two three-dimensional and vertical pin through holes, and the two three-dimensional and vertical pin through holes connecting the lower end of the tenon are respectively equipped with useful For the first and second pins that fix the connecting tenon on the main chord of the first standard section, the first and second pins are fixed and locked on the main chord of the first standard section; the upper end of the connecting tenon adopts a It is detachably inserted into the main chord in the second standard section, and the two three-dimensional vertical pin shaft through holes connecting the upper end of the tenon are equipped with pins for fastening the tenon and the second standard section. With this structure, there is no need to weld joints at the joints of the standard joints, the manufacturing process is simple, the tenon has a guiding function, the installation is convenient, and the connection is reliable.

Description

Standard section tenon and main chord connection structure

technical field

The utility model relates to a connection structure, in particular to a connection structure between a standard joint tenon and a main chord, and belongs to the field of the standard joint connection structure of tower cranes.

Background technique

In the existing design, there are mainly two connection methods for the standard section of the tower body: the connection sleeve bolt connection and the ear plate pin connection. As shown in Figure 1 and Figure 2, the connecting sleeve bolt connection structure A is welded at the end of the main chord of the standard section, and then connected through bolts and nuts. During the installation process, the bolts need to be pre-tightened according to the specified torque. The installation comparison Trouble; as shown in Figure 3 and Figure 4, lug plate pin shaft connection structure B is to connect the lug plate by welding the end of the main chord bar of the standard section, and then realize the connection between the standard sections through the pin shaft.

The above two connection methods have higher requirements on the quality of the weld between the connecting sleeve and the main chord, and the quality of the weld between the ear plate and the main chord. Therefore, there are the following disadvantages: 1) the weld seam at the joint of the standard joint is a key weld seam, and flaw detection is required, and the welding process is relatively complicated. 2) Due to welding deformation, the dimensional tolerance cannot be fully guaranteed. 3) There is no guiding function between the connectors, and the installation is laborious.

Contents of the invention

Aiming at the problems existing in the above-mentioned prior art, the utility model provides a connection structure between the standard joint tenon and the main chord. There is no need for welding joints at the standard joint connection, the manufacturing process is simple, the tenon has a guiding function, the installation is convenient, and the connection is reliable.

In order to achieve the above purpose, the utility model adopts a connection structure between the tenon and the main chord of the standard section, which includes the first standard section, the first standard section contains the main chord, and also includes the second section that can be connected up and down with the first standard section. The standard section and both ends can be inserted into the connecting tenon in the main chord of the standard section;

The upper and lower ends of the connecting tenon are respectively provided with a set of pin holes, and each set of pin holes includes two three-dimensional vertical pin through holes, and the two three-dimensional vertical pin through holes at the lower end of the connecting tenon are The first pin shaft and the second pin shaft used to fix the connecting tenon on the main chord of the first standard section are respectively installed, and the first and second pin shafts are fixed and locked on the main chord of the first standard section superior;

The upper end of the connecting tenon is detachably inserted into the main chord in the second standard section, and the two three-dimensional vertical pin shaft through holes at the upper end of the connecting tenon are equipped with pins for fastening the tenon and the second standard section .

As an improvement, the shape of the pin shaft through holes at the upper and lower ends of the connecting tenon is the same, and each group of pin shaft through holes is regularly arranged on the connecting tenon.

As an improvement, the distances between two adjacent pin shaft through holes are respectively the same.

As an improvement, the through holes of the pin shaft respectively pass through the shaft center of the connecting tenon.

As an improvement, the distance between two adjacent pin shaft through holes on the connecting tenon is constant.

The beneficial effects of the utility model are: by adopting the connecting tenon that can be inserted into the main chord of the standard section, when the standard section is installed, the joint does not need to weld the connecting piece, and the manufacturing process is simple; in addition, the connection size of the tenon and the main chord The processing is guaranteed, the installation is more convenient, and the connection is more reliable; the connecting tenon used has a guiding function, and the installation is more convenient, which improves the installation efficiency of the standard joint and effectively meets the needs of customers.

Description of drawings

Fig. 1 is the schematic diagram of existing connecting sleeve bolt connection structure;

Figure 2 is a partially enlarged view of Figure 1;

Fig. 3 is a schematic diagram of the connection structure of the existing lug pin;

Figure 4 is a partially enlarged view of Figure 3;

Fig. 5 is a schematic diagram of the connection structure between the tenon and the main chord of the utility model;

Figure 6 is a schematic diagram of the installation of the connection structure between the tenon and the main chord;

In the figure: A, the bolt connection structure of the connecting sleeve, B, the connection structure of the lug plate pin shaft, C, the connection structure of the tenon and the main chord;

1. Connect tenon, 2. First standard joint, 3. Second standard joint, 4. First pin shaft, 5. Second pin shaft.

detailed description

In order to make the purpose, technical solutions and advantages of the utility model more clear, the utility model will be further described in detail through the accompanying drawings and embodiments below. However, it should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the scope of the utility model.

As shown in Figure 5 and Figure 6, a standard joint tenon and main chord connection structure, including the first standard joint 2, the first standard joint 2 contains the main chord, and also includes a joint that can be connected up and down with the first standard joint 2 The second standard section 3 and both ends can be inserted into the connecting tenon 1 in the main chord of the standard section;

The upper and lower ends of the connecting tenon 1 are respectively provided with a group of pin holes, each group of pin holes includes two three-dimensional vertical pin shaft through holes, and the two three-dimensional vertical pin shaft holes at the lower end of the connecting tenon 1 The first pin shaft 4 and the second pin shaft 5 for fixing the connecting tenon 1 on the main chord of the first standard joint 2 are respectively installed in the holes, and the first and second pin shafts are fixed and locked at the first 1 standard section 2 on the main chord;

The upper end of the connecting tenon 1 is detachably inserted into the main chord in the second standard section 3, and the two three-dimensional vertical pin shaft through holes at the upper end of the connecting tenon 1 are equipped with fastening connecting tenon 1 and the second standard joint. Section 3 pin.

As an improvement of the embodiment, the pin shaft through holes at the upper and lower ends of the connecting tenon 1 have the same shape, and each group of pin shaft through holes is regularly arranged on the connecting tenon 1 . The pin shaft through holes of the same size are used to facilitate the processing of the connecting tenon 1, and the pin shaft through holes are regularly arranged on the connecting tenon 1 to ensure the stability of the connection between the tenon and the main chord.

As an improvement of the embodiment, the distances between two adjacent pin shaft through holes are the same. While ensuring the convenience of processing, relying on the pin shaft through holes at the same interval makes the connection between the upper and lower standard joints and the connecting tenon 1 stable, and at the same time ensures the connection The force on the tenon 1 is uniform, so as to avoid the unstable connection of the upper and lower standard joints caused by excessive local force.

As an improvement of the embodiment, the through holes of the pin shafts respectively penetrate through the axis centers of the connecting tenons 1 to ensure that the pins pass through the centers of the connecting tenons 1 respectively, so that the connecting tenons 1 and the main chord on the standard joint are firmly connected, and at the same time, the connection is ensured. Tenon 1 is evenly stressed as a whole.

As an improvement of the embodiment, the distance between two adjacent pin shaft through holes on the connecting tenon 1 is constant, which is convenient for processing and stable in structure.

When in use, the two ends of the connecting tenon 1 are respectively inserted into the two standard sections that are connected up and down, such as the main chord of the first standard section 2 and the second standard section 3, and pass through the three-dimensionally vertically intersecting pin shaft, such as the first pin shaft 4 and the second pin shaft 5 respectively connect the connecting tenon 1 to the main chord; the connecting tenon 1 is fixed to the upper end of the main chord by the pin shaft during the manufacturing process of the standard joint, and then the pin shaft is fixed and locked. disassembly, so the overall structure is very stable. The structure can make the matching tolerance between the connecting pin shaft and the connecting hole more reasonable, and improve the use reliability and safety of the standard joint.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modification, equivalent replacement or improvement made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. A connection structure between the tenon and the main chord of the standard section, including the first standard section (2), the first standard section (2) contains the main chord, and it is characterized in that it also includes the first standard section (2) The second standard section (3) connected up and down and the connecting tenon (1) in the main chord of the standard section can be inserted at both ends; The upper and lower ends of the connecting tenon (1) are respectively provided with a set of pin holes, and each set of pin holes includes two three-dimensional vertical pin shaft through holes, and the two lower ends of the connecting tenon (1) are three-dimensional vertical The first pin shaft (4) and the second pin shaft (5) used to fix the connecting tenon (1) on the main chord of the first standard joint (2) are respectively installed in the pin shaft through hole, and the The first and second pin shafts (4, 5) are fixedly locked on the main chord of the first standard section (2); The upper end of the connecting tenon (1) is detachably inserted into the main chord in the second standard section (3), and the two three-dimensional vertical pin shaft through holes at the upper end of the connecting tenon (1) are equipped with fastening connections. Tenon (1) and the pin shaft of the second standard section (3). 2. A standard joint tenon and main chord connection structure according to claim 1, characterized in that the shape of the through holes of the pins at the upper and lower ends of the connecting tenon (1) is the same, and the through holes of each set of pins are regular Arrange on the connecting tenon (1). 3. The connection structure between the standard joint tenon and the main chord according to claim 2, characterized in that the distances between two adjacent pin shaft through holes are respectively the same. 4 . The connection structure between the standard pitch tenon and the main chord according to claim 1 , characterized in that, the through-holes of the pin shaft respectively penetrate through the axis of the tenon ( 1 ). 5. A connection structure between a tenon and a main chord according to claim 1, characterized in that the distance between two adjacent pin shaft through holes on the tenon (1) is constant.