CN218810021U

CN218810021U - Connecting structure of inner sleeve frame and lower support of tower crane

Info

Publication number: CN218810021U
Application number: CN202222688210.7U
Authority: CN
Inventors: 张朝超; 张朝赵; 张廷标; 何赞; 黄振湖
Original assignee: Guangxi Huasheng Mechanical Equipment Co ltd
Current assignee: Guangxi Huasheng Mechanical Equipment Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-04-07
Anticipated expiration: 2032-10-12

Abstract

The utility model relates to a construction equipment field provides a connection structure of inner jacket frame and undersetting of tower crane, including undersetting, inner jacket frame, main bolt, vice bolt, fixed pin, insert the grafting portion on the inner jacket frame through the angle steel on the undersetting, grafting portion includes two pairs of external connection boards and internal connection board, all be equipped with first bolt hole on the face of the correspondence of external connection board, internal connection board, angle steel, be equipped with the mounting on the external connection board, be equipped with second bolt hole on the mounting, insert first bolt hole internal fixation undersetting and inner jacket frame through main bolt, the rethread is vice bolt and is inserted the downthehole main bolt of second bolt hole and the main bolt third bolt of mounting and carry out outside locking, inserts the downthehole inside locking that carries out of fourth bolt that carries out main bolt through the fixed pin at last, and this connection structure has both preserved original mode of demolising in inside, provides the mode of demolising of externally again, provides bigger operating space.

Description

Connecting structure of inner sleeve frame and lower support of tower crane

Technical Field

The utility model relates to a construction equipment field specifically is a connection structure of inner jacket frame and undersetting of tower crane.

Background

CN202122197216.X discloses a detachable tower crane structure, includes a plurality of standard festival of piling up, and the standard festival includes: the first splicing sheet assemblies and the second splicing sheet assemblies are sequentially and alternately connected end to end, and the adjacent first splicing sheet assemblies and the second splicing sheet assemblies are detachably connected; the step-slowing platform is detachably connected with the first splicing sheet assembly and the second splicing sheet assembly, the step-slowing platform is arranged at the bottom of the standard knot, and a through hole is formed in the step-slowing platform; the upper side of the ladder stand is detachably connected with the top of the first splicing sheet assembly or the second splicing sheet assembly, and the lower side of the ladder stand is detachably connected with the slow walking platform; the joint of two adjacent standard sections is equipped with mosaic structure, and mosaic structure is used for the concatenation between two adjacent standard sections from top to bottom to fix.

This structure provides a stable and relatively easy connection, but when disassembled, can only be removed by internal operation, and the operating space is limited.

Therefore, the objective of the present invention is to optimize the above deficiencies.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a connecting structure of an inner sleeve frame and a lower support of a tower crane, wherein two fixed points are arranged on a main bolt of the connecting structure, a fixing part is arranged on an outer connecting plate, and the main bolt is externally locked by an auxiliary bolt passing through the fixing part and one fixed point on the main bolt; internally, the main bolt is internally locked by a fixing pin passing through another fixing point of the main bolt, and the connecting structure can be externally removed, providing a larger operating space.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a connecting structure of an inner sleeve frame and a lower support of a tower crane comprises the lower support, the inner sleeve frame, a main bolt, an auxiliary bolt and a fixed pin, wherein a plurality of connecting rods are arranged on the lower support; the end part of the connecting rod is provided with angle steel, the inner sleeve frame is provided with a plurality of main chords, and the end parts of the main chords are splicing parts; the inserting part comprises two pairs of outer connecting plates and inner connecting plates; each pair of the outer connecting plate and the inner connecting plate forms an inserting groove; two surfaces of the angle steel are inserted into the corresponding inserting grooves, first bolt holes are formed in the corresponding surfaces of the outer connecting plate, the inner connecting plate and the angle steel, the outer connecting plate is located on the outer side of the angle steel, the inner connecting plate is close to the inner side of the angle steel, a fixing piece is arranged on the outer connecting plate, a second bolt hole is formed in the fixing piece, a third bolt hole is formed in one end of a main bolt, a fourth bolt hole is formed in the other end of the main bolt, and the main bolt is inserted into the first bolt holes of the outer connecting plate, the inner connecting plate and the angle steel; the auxiliary bolt is inserted into the second bolt hole and the third bolt hole, and the fixing pin is inserted into the fourth bolt hole.

In the above connection structure, there are two first bolt holes on the two pairs of outer connection plates, and the two first bolt holes are arranged in a vertically staggered manner, and the two main bolts penetrate through the corresponding first bolt holes and are fixed by sequentially inserting fixing pins into the fourth bolt holes of the two main bolts.

In the above connection structure, the fixing member includes two fixing plates, and the two fixing plates are respectively disposed at two sides of the first pin hole on the outer connection plate; the second pin hole is formed in the fixing plate.

In the above connection structure, the fixing member is a hollow square cylindrical body, and the fixing plates are two surfaces of the square cylindrical body; the square cylindrical body is welded on the outer connecting plate.

In the above connection structure, two of the interconnection plates are connected to each other to form an L-shaped structure.

In the connecting structure, one side or two sides of the angle steel are connected with or integrally formed with cushion blocks, and the first bolt holes in the angle steel penetrate through the cushion blocks.

In the above connection structure, the outer connection plate and the inner connection plate are connected to the end of the main chord in a welded manner.

A tower crane main body is characterized in that a lower support is composed of at least three connecting rods, an inner sleeve frame is composed of at least three main chords, and auxiliary chords are connected between adjacent main chords; the inner sleeve frame is connected with the lower support through the connecting structure.

Compared with the prior art, the beneficial effects of the utility model are that:

the novel connecting structure can be detached inside, the detaching mode of the old connecting structure is saved, the novel connecting structure can also be detached outside, and a larger operation space is provided.

Drawings

Fig. 1 is a perspective view of a connection structure of embodiment 1;

fig. 2 is a perspective view of an external connection plate of the connection structure of embodiment 1;

FIG. 3 is a perspective view of an inner connection plate of the connection structure of embodiment 1;

fig. 4 is a perspective view of a main plug, an auxiliary plug, and a fixing pin of the connection structure of embodiment 1;

fig. 5 is a perspective view of an angle steel and a socket part of the connection structure of embodiment 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-5, a connection structure of an inner sleeve frame and a lower support of a tower crane comprises the lower support, the inner sleeve frame, a main bolt 5, an auxiliary bolt 6 and a fixing pin 7, wherein a plurality of connecting rods 1 are arranged on the lower support; the end part of the connecting rod 1 is an angle steel, the inner sleeve frame is provided with a plurality of main chords 2, and the end part of each main chord 2 is a plug-in part 13; the inserting part comprises two pairs of outer connecting plates 3 and inner connecting plates 4; each pair of the outer connecting plates 3 and the inner connecting plates 4 form an inserting groove 13; two surfaces of the angle steel are inserted into corresponding insertion grooves 13, first plug pin holes 8 are formed in the corresponding surfaces of the outer connecting plate 3, the inner connecting plate 4 and the angle steel, the outer connecting plate 3 is located on the outer side of the angle steel, the inner connecting plate 3 is close to the inner side of the angle steel, a fixing piece 9 is arranged on the outer connecting plate 3, a second plug pin hole 10 is formed in the fixing piece 9, a third plug pin hole 11 is formed in one end of a main plug pin 5, a fourth plug pin hole 12 is formed in the other end of the main plug pin 5, and the main plug pin 5 is inserted into the first plug pin holes 8 of the outer connecting plate 3, the inner connecting plate 4 and the angle steel; the auxiliary bolt 6 is inserted into the second bolt hole 10 and the third bolt hole 11, and the fixing pin 7 is inserted into the fourth bolt hole 12.

Under this kind of design, be equipped with mounting 9 on novel connection structure's the outer connecting plate 3, vice bolt 6 can pass second bolt hole 10 on mounting 9 and the third bolt hole 11 on the main bolt 5 in proper order and carry out the external fixation to main bolt 5, fixed pin 7 passes fourth bolt hole 12 of main bolt 5 and carries out inside fixed to main bolt 5, the connection structure who designs like this has both preserved original removal mode in inside, the removal mode that externally demolishs is provided again, greater operating space is provided.

In this embodiment, two first bolt holes 8 to on the outer joint plate 3 have two, and be about dislocation arrangement, two main bolts 5 pass corresponding first bolt hole 8 and adopt fixed pin 7 to insert the fourth bolt hole 12 internal fixation of two main bolts 5 in proper order, if adopt two fixed pins 7 to carry out inside fixed to main bolt 5 respectively, this kind of connected mode is inconvenient when demolising, so this embodiment decides to adopt 7 fixed two main bolts 5 simultaneously of a fixed pin, under the prerequisite of guaranteeing the steadiness, this kind of connected mode is more convenient when demolising.

Preferably, the fixing member 9 includes two fixing plates, and the two fixing plates are respectively disposed at two sides of the first pin hole 8 on the outer connecting plate 3; the second pin hole 10 is formed in the fixing plate, the fixing plate is arranged so that the auxiliary pin 6 sequentially passes through the second pin hole 10 and the third pin hole 11 in the main pin 5, the main pin 5 is locked in the first pin hole 8, and an external removal mode is provided.

As a further optimization of this embodiment, in order to increase the strength of the two fixing plates and prevent the two fixing plates from deforming under stress, the fixing member 9 is a hollow square cylindrical body, and the fixing plates are two surfaces of the square cylindrical body; the square cylinder is welded on the outer connecting plate 3.

In the present embodiment, two inner connection plates 4 are connected to each other to form an L-shaped structure, which can increase the contact area between the inner connection plates 4 and the angle steel.

In this embodiment, one side or both sides of angle steel are connected with or integrated into one piece has cushion 14, first bolt hole 8 on the angle steel runs through cushion 14, and cushion 14's effect increases the cross-sectional thickness in first bolt hole 8, prevents that the tower crane during operation, the body of the tower atress from leading to first bolt hole 8 atress to produce and warp.

Preferably, the outer connecting plate 3 and the inner connecting plate 4 are connected to the ends of the main chord 2 by welding, which has the following advantages:

1. the welded structure has strong integral integrity and high rigidity;

2. the strength of the welding structure is high;

3. the density of the welding structure is good, so that the air tightness and the water tightness are ensured;

4. the welded structure has good economic benefits.

A tower crane main body is characterized in that a lower support is composed of at least three connecting rods 1, an inner sleeve frame is composed of at least three main chords 2, and auxiliary chords are connected between every two adjacent main chords 2; the inner sleeve frame is connected with the lower support through the connecting structure.

Under the design, the connecting structure between the lower support and the inner sleeve frame not only preserves the original internal dismantling mode, but also provides the external dismantling mode, thereby providing larger operation space.

The connection structure of inner jacket frame and undersetting of a tower crane of this embodiment is at the connection in-process, the step as follows:

step 1: inserting the angle steel part of the lower support into the inserting groove 13 of the inner sleeve frame;

and 2, step: aligning the first bolt holes 8 on the outer connecting plate 3, the angle steel and the inner connecting plate 4, and inserting the main bolt 5 into the first bolt holes 8;

and step 3: aligning a second bolt hole 10 on the fixing piece 9 and a third bolt hole 11 on the main bolt 5, and penetrating the auxiliary bolt 6 through the second bolt hole 10 and the third bolt hole 11;

and 4, step 4: the fixing pins 7 are sequentially inserted through the fourth pin holes 12 of the two main pins 5 while aligning the fourth pin holes 12 of the two main pins 5 fixed to the two outer connection plates 3.

Claims

1. A connecting structure of an inner sleeve frame and a lower support of a tower crane comprises the lower support, the inner sleeve frame, a main bolt, an auxiliary bolt and a fixing pin, wherein a plurality of connecting rods are arranged on the lower support; the end part of the connecting rod is provided with angle steel, the inner sleeve frame is provided with a plurality of main chords, and the end parts of the main chords are splicing parts; the inserting part comprises two pairs of outer connecting plates and inner connecting plates; each pair of the outer connecting plates and the inner connecting plates form an inserting groove; the angle iron fixing device is characterized in that a fixing piece is arranged on the outer connecting plate, a second bolt hole is formed in the fixing piece, a third bolt hole is formed in one end of a main bolt, a fourth bolt hole is formed in the other end of the main bolt, and the main bolt is inserted into the first bolt holes of the outer connecting plate, the inner connecting plate and the angle iron; the auxiliary bolt is inserted into the second bolt hole and the third bolt hole, and the fixing pin is inserted into the fourth bolt hole.

2. The connection structure of claim 1, wherein there are two first pin holes on the two pairs of external connection plates, and the two main pins pass through the corresponding first pin holes and are fixed by sequentially inserting fixing pins into the fourth pin holes of the two main pins.

3. The coupling structure according to claim 1, wherein the fixing member includes two fixing plates provided at both sides of the first pin hole on the outer coupling plate; the second pin hole is formed in the fixing plate.

4. The connecting structure according to claim 3, wherein the fixing member is a hollow square cylinder, and the fixing plates are two faces of the square cylinder; the square cylindrical body is welded on the outer connecting plate.

5. The connecting structure according to claim 1, wherein two of said interconnecting plates are connected to each other to form an L-shaped structure.

6. The connecting structure of claim 1, wherein a spacer is connected to or integrally formed on one or both sides of the angle steel, and the first pin hole of the angle steel penetrates through the spacer.

7. The connecting structure according to claim 1, wherein the outer and inner connecting plates are connected to ends of the main chord by welding.