CN216583925U

CN216583925U - Tenon type standard knot connecting device

Info

Publication number: CN216583925U
Application number: CN202120531965.9U
Authority: CN
Inventors: 罗建峰; 毛瑞年; 贾修行
Original assignee: Dahan Technology Co ltd
Current assignee: Dahan Technology Co ltd
Priority date: 2021-03-13
Filing date: 2021-03-13
Publication date: 2022-05-24
Anticipated expiration: 2031-03-13

Abstract

The utility model relates to the field of tower body structures of hoisting equipment, in particular to a tenon type standard joint connecting device, which comprises a main limb, a connecting rod and a connecting rod, wherein the main limb is formed by welding two angle steels; the square pin can be inserted into the main limb to form a tenon structure; the pin shaft vertically penetrates through the central axis of the tenon structure to fix the main limb and the square pin; and the exposed positions of the two ends of the pin shaft are respectively welded with an anti-rotation end cover and a fixed end cover. The fixed end cover is arranged at one end of the pin shaft, so that the pin shaft can be prevented from axially moving, and the safety is improved. Through the through holes formed by the pin shafts and the main limbs, the whole wall thickness of the square pipe is ensured to be attached to the pin shafts, and the destructive power for resisting load change is increased; the problem of tenon formula connection structure as the tower body of large-scale tower machine, at tower machine long-term working process, axial drunkenness and rotation are easily thought of to tenon formula connection structure's connecting pin axle, receive incessant in-process that receives alternating load for a long time and make tenon formula connection structure appear structural unstability easily is solved.

Description

Tenon formula standard festival connecting device

Technical Field

The utility model relates to the field of tower body structures of hoisting equipment, in particular to a tenon type standard joint connecting device.

Background

With the rapid development of economy in China, the hoisting and transporting machinery makes great progress in industrial production. With the modern construction process becoming faster and faster, the requirements on hoisting machinery also becoming higher and higher, and the hoisting machinery is developing towards the trends of large-scale, automation and specialization. As a tower body of a large-scale tower crane, the tenon type connecting structure is one of the most common and safe structures.

The inventor discovers that the tenon type connecting structure is used as a tower body of a large-scale tower crane, and in the long-term working process of the tower crane, the connecting pin shaft of the tenon type connecting structure easily reverses axial movement and rotation, so that the tenon type connecting structure is easy to structurally unstable in the process of receiving uninterrupted alternating load for a long time, and even the production accident is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tenon type standard joint connecting device, which solves the problem of axial movement and rotation of a connecting pin shaft of a tenon type tower body, is beneficial to ensuring the stability of a tenon type connecting structure when the tenon type connecting structure is subjected to alternating load for a long time and avoids failure.

The utility model provides a tenon type standard knot connecting device, which comprises:

the main limb is formed by welding two angle steels in a splicing manner;

a square pin capable of being inserted into the main limb to form a tenon structure;

the pin shaft vertically penetrates through the central axis of the tenon structure to fix the main limb and the square pin; and the exposed positions of the two ends of the pin shaft are respectively provided with an anti-rotation end cover and a fixed end cover.

In a further improvement, two first holes are processed at the end part of the main limb, and the connecting line of the two first holes is vertical to the central axis of the main limb;

the square pin is provided with a second hole, and the second hole is matched with the two first holes to form a through hole.

In a further improvement, the pin shaft is matched with the through hole to fix the main limb and the square pin.

In a further improvement, the fixed end cover is fixed on the outer side of the main limb and is positioned at the exposed position of one end of the pin shaft.

The improved structure is characterized in that a planing port is arranged at the other end of the pin shaft and is in a spherical segment shape.

In a further improvement, an anti-rotation end cover is arranged at the planing port end of the pin shaft and fixed on the outer side of the main limb.

The anti-rotation end cover is further improved in the mode that an arc plate is arranged on the inner side of the anti-rotation end cover, and the arc plate is matched with a planing port of the pin shaft, so that the pin shaft can be clamped and limited to rotate.

In a further improvement, the first hole, the second hole and the pin shaft are combined into two groups, are arranged along the central axis of the tenon structure and are perpendicular to each other.

In a further improvement, the combination of the first hole and the second hole has more than two groups, and the axes of the adjacent combinations are mutually vertical.

In a further improvement, the fixed end cover, the anti-rotation end cover and the outer side of the main limb are fixedly connected in a welding mode.

Compared with the prior art, the beneficial effect of above one or more technical scheme:

(1) the tenon formula standard festival connecting device that this embodiment provided has set up fixed end cover in the position of round pin axle one end, can prevent that the round pin axle from taking place the axial float, improves the security.

(2) Through the pin shaft and the main limb, a through hole is formed, so that the whole wall thickness of the square tube is ensured to be attached to the pin shaft, and the destructive power for resisting load change is increased.

(3) The problem of tenon formula connection structure as the tower body of large-scale tower machine, at tower machine long-term working process, axial drunkenness and rotation are easily thought of to tenon formula connection structure's connecting pin axle, receive incessant in-process that receives alternating load for a long time and make tenon formula connection structure appear structural unstability easily is solved.

Drawings

FIG. 1 is a general schematic view of a tenon-type standard joint connection apparatus according to an embodiment of the present invention;

FIG. 2 is a side view of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged view of a portion of the utility model at A in FIG. 2;

fig. 4 and 5 are schematic diagrams of arc-shaped plates and anti-rotation end covers of the tenon-type standard joint connecting device provided by the embodiment of the utility model, wherein fig. 4 is a front view, and fig. 5 is a sectional view.

In the figure: 1-square pin, 2-main limb, 3-anti-rotation end cover, 301-arc plate, 4-pin shaft and 5-fixed end cover.

Detailed Description

The tenon type standard joint connecting device of the utility model is described in detail below with reference to the attached drawings.

Like background art, tenon formula connection structure is as the body of the tower of large-scale tower machine, and at tower machine long-term working process, axial drunkenness and rotation are easily thought against to tenon formula connection structure's connecting pin axle, receive incessant in-process that receives alternating load for a long time and make tenon formula connection structure appear structurally unstable easily.

As shown in figures 1-5, the tenon type standard joint connecting device comprises a square pin 1, a main limb 2, an anti-rotation end cover 3, a pin shaft 4 and a fixed end cover 5. Main limb 2 is formed by two angle steel tailor-welds, and square round pin 1 can insert the main limb and form the tenon structure. The pin shaft 4 vertically penetrates through the central axis of the tenon structure to fix the main limb 2 and the square pin 1; the exposed positions of the two ends of the pin shaft 4 are respectively provided with an anti-rotation end cover 3 and a fixed end cover 5.

Two first holes are processed at the end part of the main limb 2, and the connecting line of the two first holes is vertical to the central axis of the main limb; the square pin 1 is provided with a second hole which is matched with the two first holes to form a through hole. The pin 4 is fitted into the through hole to fix the main limb 2 and the square pin 1.

One end of the pin shaft 4 is provided with an anti-rotation end cover 5 which is fixed on the outer side of the main limb. The fixed end cover 5 is fixed on the outer side of the main limb 2 and is positioned at the exposed position of one end of the pin shaft. The fixed end cover 5, the anti-rotation end cover 3 and the outer side of the main limb are all fixedly welded.

The other end of the pin shaft 4 is provided with a planing port which is in a spherical segment shape. An anti-rotation end cover 3 is arranged at the planed end of the pin shaft 4 and is fixed on the outer side of the main limb. The inner side of the anti-rotation end cover 3 is provided with an arc-shaped plate 301, and the arc-shaped plate 301 is matched with a planing port of the pin shaft, so that the pin shaft can be clamped and limited to rotate.

Specifically, the combination of the first hole, the second hole and the pin shaft shown in fig. 1 is divided into two groups, which are arranged along the central axis of the tenon structure and perpendicular to each other. In other embodiments, the combination of the first holes and the second holes can be more than two groups, the axes of the adjacent combinations are mutually vertical, and the matching position of the square pin and the main limb can be adjusted more flexibly.

The installation process of the device is as follows:

and inserting the square pin into the main limb, aligning the first hole of the square pin with the second hole of the main limb to form a through hole, and then inserting the pin shaft into the through hole.

And welding and fixing an end cover on the outer wall of the main limb where one end of the pin shaft is located, and welding an anti-rotation end cover on the outer wall of the main limb where the planing end is located, so that the cambered plate clamps the planing surface.

And under the condition that a plurality of groups of first holes exist, selecting a group of first holes in proper positions for installation.

The tenon formula standard festival connecting device that this embodiment provided has set up the dadoing with round pin axle one end to set up and prevented changeing the end cover, can prevent that the round pin axle from rotating, especially be fit for the position that has alternating load, improve structural stability.

The tenon formula standard festival connecting device that this embodiment provided has set up fixed end cover in the position of round pin axle one end, can prevent that the round pin axle from taking place the axial float, improves the security.

Through the pin shaft and the main limb, a through hole is formed, so that the whole wall thickness of the square tube is ensured to be attached to the pin shaft, and the destructive power for resisting load change is increased.

The problem of tenon formula connection structure as the tower body of large-scale tower machine, at tower machine long-term working process, axial drunkenness and rotation are easily thought of to tenon formula connection structure's connecting pin axle, receive incessant in-process that receives alternating load for a long time and make tenon formula connection structure appear structural unstability easily is solved.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model.

Claims

1. A tenon type standard joint connecting device is characterized by comprising:

the main limb is formed by welding two angle steels in a splicing manner;

2. The tenon-type standard knot connecting device of claim 1, wherein two first holes are processed at the end part of the main limb, and the connecting line of the two first holes is perpendicular to the central axis of the main limb;

3. The tenon-type standard joint connecting device according to claim 2, wherein said pin shaft is fitted in said through hole to fix the main limb and the square pin.

4. The tenon-type standard joint connecting device according to claim 1, wherein said fixed end cap is fixed to the outside of the main limb at a position exposed from one end of the pin shaft.

5. The tenon type standard joint connecting device according to claim 4, wherein the other end of the pin shaft is provided with a plane, and the plane is in a segment shape.

6. The tenon-type standard joint connecting device according to claim 5, wherein an anti-rotation end cap is arranged at the planer end of the pin shaft and fixed on the outer side of the main limb.

7. The tenon type standard joint connecting device according to claim 6, wherein an arc-shaped plate is arranged on the inner side of the anti-rotating end cover, and the arc-shaped plate is matched with the planing port of the pin shaft, so that the pin shaft can be clamped and limited to rotate.

8. The tenon type standard joint connecting device according to claim 3, wherein the first hole, the second hole and the pin are combined in two groups, arranged along the central axis of the tenon structure and perpendicular to each other.

9. The tenon-type standard joint connecting device according to claim 3, wherein said first and second holes are formed in two or more sets, and the axes of the adjacent sets are perpendicular to each other.

10. The tenon-type standard joint connecting device according to any one of claims 6 or 7, wherein the fixing end cap, the anti-rotation end cap and the outer side of the main limb are connected in a welding manner.