阅读说明：本技术 自升式塔吊加高和角度转变转换节及使用方法 (Self-elevating tower crane heightening and angle transformation conversion section and use method thereof ) 是由 王辉 周勇 王开强 陈波 刘晓升 方小林 慕冬冬 张宇 陈百奔 杨登 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种自升式塔吊加高和角度转变转换节及使用方法,包括上框架结构(1)、下框架结构(2)和角度转换机构(3)；上框架结构(1)和下框架结构(2)上下对接,上框架结构(1)的两个长立柱同侧设置且与下框架结构(2)的两个长立柱分别对接,下框架结构(2)的四柱底部平齐设置；角度转换机构(3)安装于上框架结构(1)和下框架结构(2)对接处,并设置为通过角度转换机构(3)升降调整控制上框架结构(1)、下框架结构(2)之间的夹角变化。能够同时进行塔吊加高和角度转变,且转换节本身的外形和尺寸能够随角度变化而调整,从根本上适应建筑物的倾斜侧面要求。(The invention discloses a self-elevating tower crane heightening and angle conversion joint and a use method thereof, wherein the self-elevating tower crane heightening and angle conversion joint comprises an upper frame structure (1), a lower frame structure (2) and an angle conversion mechanism (3); the upper frame structure (1) and the lower frame structure (2) are in up-and-down butt joint, two long upright columns of the upper frame structure (1) are arranged on the same side and are in butt joint with two long upright columns of the lower frame structure (2) respectively, and the bottoms of four columns of the lower frame structure (2) are arranged in parallel and level; the angle conversion mechanism (3) is arranged at the butt joint of the upper frame structure (1) and the lower frame structure (2) and is arranged to control the change of an included angle between the upper frame structure (1) and the lower frame structure (2) through the lifting adjustment of the angle conversion mechanism (3). The tower crane can be heightened and the angle can be changed simultaneously, and the appearance and the size of the conversion joint can be adjusted along with the change of the angle, so that the requirement of the inclined side surface of a building is fundamentally met.)

1. A self-elevating tower crane heightening and angle transformation conversion joint comprises an upper frame structure (1), a lower frame structure (2) and an angle transformation mechanism (3); the method is characterized in that: the upper frame structure (1) and the lower frame structure (2) are vertically butted and are four-column hexahedrons with two long columns and two short columns, the two long columns of the upper frame structure (1) are arranged at the same side and are respectively butted with the two long columns of the lower frame structure (2), and the bottoms of the four columns of the lower frame structure (2) are arranged in parallel and level; the angle conversion mechanism (3) is arranged at the butt joint of the upper frame structure (1) and the lower frame structure (2) and is arranged to control the change of an included angle between the upper frame structure (1) and the lower frame structure (2) through the lifting adjustment of the angle conversion mechanism (3).

2. The self-elevating tower crane heightening and angle transformation conversion joint according to claim 1, characterized in that: the top parts of four columns of the upper frame structure (1) are provided with flat-plate-shaped upper end extending parts, wherein the bottoms of the two long upright columns are provided with lower end extending parts vertical to the plate surfaces of the upper end extending parts, and the lower parts of the two short upright columns present cavity sections with cavity slideways; the tops and the bottoms of four columns of the lower frame structure (2) are both cavity sections; the upper end extending part of the upper frame structure (1) can extend into the bottom cavity section of the lower frame structure (2) butted above the upper frame structure and is hinged and fixed, and the lower end extending part of the upper frame structure (2) can extend into the top cavity section of the other lower frame structure (2) butted with the upper frame structure and is hinged and fixed.

3. The self-elevating tower crane heightening and angle transformation conversion joint according to claim 1, characterized in that: the angle conversion mechanism (3) comprises a sliding part, a rotating part and a limiting rod, wherein the sliding part and the rotating part are hinged into a whole through a pin shaft and are connected with one side of a short stand column of the upper frame structure (1) and one side of a short stand column of the lower frame structure (2), and when the angle conversion mechanism is used, the upper frame structure (1) and the lower frame structure (2) can rotate relatively around the pin shaft so as to drive the upper frame structure and the lower frame structure to change angles.

4. The self-elevating tower crane heightening and angle transformation conversion joint according to claim 1, characterized in that: the sliding part of the angle conversion mechanism (3) is inserted into the short upright post cavity section of the upper frame structure (1) and is hinged into a whole, and the top of the rotating part of the angle conversion mechanism is supported in the gap of the sliding lug plates at the two sides and can rotate relative to the sliding lug plates through a hinge shaft; the bottom of the rotating piece is inserted into the top cavity section of the short stand column of the lower frame structure (2), the limiting rod is arranged outside the top cavity of the short stand column and comprises a screw limiting section and a hinged section, the hinged section is in a plate shape parallel to the rotating piece, and the bottom of the rotating piece, the hinged section of the limiting rod and the top cavity section of the short stand column are hinged and fixed through a long pin shaft.

5. The self-elevating tower crane heightening and angle transformation conversion joint according to claim 1, characterized in that: the sliding piece of the angle conversion mechanism (3) is inserted into the short upright post cavity section of the upper frame structure (1) and is hinged into a whole, the short upright post cavity section of the upper frame structure (1) is provided with at least two hinge holes with different heights, and the angle conversion of the upper frame structure and the lower frame structure is adjusted through the hinge height of the sliding piece.

6. The self-elevating tower crane heightening and angle transformation conversion joint according to claim 1, characterized in that: the screw limiting section of the limiting rod penetrates through the cross rod of the upper frame structure (1), and the cross rod is arranged between the two long stand columns; two ends of the screw limiting section respectively arranged at the upper part and the lower part of the cross rod are respectively provided with a nut, and the opening and closing angle of the upper frame structure and the lower frame structure is adjusted by adjusting the position of the nut.

7. The self-elevating tower crane heightening and angle transformation conversion joint according to claim 1, characterized in that: during assembly, the longer sides of the upper frame stand column and the lower frame stand column are hinged, the angle conversion mechanism is arranged on the shorter side of the stand column, the cavity section of the short stand column of the upper frame structure (1) is hinged with the sliding piece of the angle conversion mechanism, and then the bottom of the rotating piece of the angle conversion mechanism, the hinged section of the limiting rod and the cavity section of the top of the short stand column of the lower frame structure (2) are hinged and fixed.

Technical Field

The invention belongs to the technical field of building construction, and particularly relates to a heightening and angle-variable conversion joint of a self-elevating tower crane and a corresponding construction method.

Background

The self-elevating tower crane is the most common hoisting equipment on the building site, is an indispensable equipment on the construction sites of structures such as high-rise buildings, bridge tower columns or cooling towers, and along with the rise of the construction height of structures such as buildings, bridge tower columns or cooling towers, the self-elevating tower crane is continuously increased in sections, and after the tower crane exceeds the specified free height, the self-elevating tower crane needs to be installed and attached, and is installed next time at intervals of a certain height according to the specified value.

However, when the side of a structure such as a building, a bridge tower or a cooling tower is required to have an inclination angle, the distance between the tower body of the conventional tower crane and the side of the structure such as the building, the bridge tower or the cooling tower is increased along with the increase of the height, so that the length of the existing attachment is increased, the attachment angle of the attachment is small, and the strength and the stability of the attachment are weakened. In order to solve the problem, the transverse distance between the tower crane and a building can be reduced by adopting a hinged connection mode to change an angle mode for standard sections of certain positions of the tower crane in the construction process.

However, the shape and size of the conventional standard knot are fixed and unchangeable, and the conventional standard knot cannot meet the actual requirements on the change of the attachment length and the angle when the angle is changed, and cannot fundamentally adapt to the requirement of the inclined side surface of a building.

Disclosure of Invention

The invention aims to solve the technical problem that a self-elevating tower crane heightening and angle transformation conversion joint and a using method thereof are used, the conversion joint can simultaneously heighten and convert the angle of a tower crane, the appearance and the size of the conversion joint can be adjusted along with the change of the angle, and the self-elevating tower crane heightening and angle transformation conversion joint is fundamentally suitable for the requirement of the inclined side face of a building.

In order to solve the technical problems, the invention adopts the following technical scheme:

a self-elevating tower crane heightening and angle transformation conversion joint comprises an upper frame structure (1), a lower frame structure (2) and an angle transformation mechanism (3); the method is characterized in that: the upper frame structure (1) and the lower frame structure (2) are vertically butted and are four-column hexahedrons with two long columns and two short columns, the two long columns of the upper frame structure (1) are arranged at the same side and are respectively butted with the two long columns of the lower frame structure (2), and the bottoms of the four columns of the lower frame structure (2) are arranged in parallel and level; the angle conversion mechanism (3) is arranged at the butt joint of the upper frame structure (1) and the lower frame structure (2) and is arranged to control the change of an included angle between the upper frame structure (1) and the lower frame structure (2) through the lifting adjustment of the angle conversion mechanism (3).

In the technical scheme, the tops of four columns of an upper frame structure (1) are provided with flat-plate-shaped upper end extending parts, wherein the bottoms of two long upright columns are provided with lower end extending parts vertical to the plate surfaces of the upper end extending parts, and the lower parts of two short upright columns present cavity sections with cavity slideways; the tops and the bottoms of four columns of the lower frame structure (2) are both cavity sections; the upper end extending part of the upper frame structure (1) can extend into the bottom cavity section of the lower frame structure (2) butted above the upper frame structure and is hinged and fixed, and the lower end extending part of the upper frame structure (2) can extend into the top cavity section of the other lower frame structure (2) butted with the upper frame structure and is hinged and fixed.

Among the above-mentioned technical scheme, angle conversion mechanism (3) are including slider, rotation piece and gag lever post, and slider and rotation piece are articulated as an organic whole through the round pin axle to link to each other with the short stand one side of last frame construction (1) and underframe structure (2), during the use, go up frame construction (1) and underframe structure (2) and can rotate around the round pin axle relatively, thereby drive upper and lower frame construction and change the angle.

In the technical scheme, the sliding part of the angle conversion mechanism (3) is inserted into the cavity section of the short upright post of the upper frame structure (1) and is hinged into a whole, and the top of the rotating part of the angle conversion mechanism is supported in the gaps of the sliding lug plates on the two sides and can rotate relative to the sliding lug plates through a hinge shaft; the bottom of the rotating piece is inserted into the top cavity section of the short stand column of the lower frame structure (2), the limiting rod is arranged outside the top cavity of the short stand column and comprises a screw limiting section and a hinged section, the hinged section is in a plate shape parallel to the rotating piece, and the bottom of the rotating piece, the hinged section of the limiting rod and the top cavity section of the short stand column are hinged and fixed through a long pin shaft.

Among the above-mentioned technical scheme, the slider of angle conversion mechanism inserts in the short stand cavity section of frame construction (1) and articulates as an organic whole, and the short stand cavity section of frame construction (1) sets up the hinge hole of two at least heights, and through the hinge height adjustment of slider, lower frame construction conversion angle.

In the technical scheme, the screw limiting section of the limiting rod penetrates through the cross rod of the upper frame structure (1), and the cross rod is arranged between the two long stand columns; two ends of the screw limiting section respectively arranged at the upper part and the lower part of the cross rod are respectively provided with a nut, and the opening and closing angle of the upper frame structure and the lower frame structure is adjusted by adjusting the position of the nut.

In the technical scheme, during assembly, the longer sides of the upper frame stand column and the lower frame stand column are hinged, the angle conversion mechanism is arranged on the shorter side of the stand column, the cavity section of the short stand column of the upper frame structure (1) is hinged with the sliding piece of the angle conversion mechanism, and then the bottom of the rotating piece of the angle conversion mechanism, the hinged section of the limiting rod and the cavity section of the top of the short stand column of the lower frame structure (2) are hinged and fixed.

Compared with the prior art, the invention has the following beneficial effects: in the use process of the tower crane lifting device, the structural outline size is completely consistent with the common standard section of the tower crane, the vertical spacing of the lifting steps is also the same as that of the standard steps, and the normal heightening and use of the tower crane are not influenced. Under normal conditions, the tower crane can be used as a standard section of a common tower crane, and under some special conditions, the telescopic attachment frame designed in a matching way can drive the conversion section to rotate vertically, so that the whole tower crane is inclined at a certain angle, a reasonable attachment angle and a small attachment distance can be ensured to be kept between the tower crane and a lateral attachment building in the construction process of structures with inclined outer vertical surfaces such as a bridge tower, a chimney and a cooling tower, and the strength and the stability of an attachment are improved; the adhesion safety factor and the installation efficiency are improved, the adhesion cost of the tower crane is reduced, and the high efficiency, economy, safety and reliability of project implementation are ensured. On the other hand, the angle of the tower body is changed by adjusting the conversion joint, so that the length and the attachment angle of the attachment piece are kept uniform, the attachment piece is convenient to process and manufacture in batches, the installation difficulty of the attachment piece can be reduced, and the tower is simple and practical, and has good economic benefit and wide popularization value while the construction safety is ensured.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of the overall structure of a jack-up tower crane elevation and angle transition conversion section according to the embodiment of the invention;

FIG. 2 is a schematic view of the frame structure on the elevation and angle transition conversion section of the jack-up tower crane of the present invention;

FIG. 3 is a schematic view of a lower frame structure of the elevation and angle transition conversion section of the jack-up tower crane of the present invention;

FIG. 4 is a schematic structural diagram of a sliding member in the elevating tower crane heightening and angle-conversion section angle conversion mechanism of the present invention;

FIG. 5 is a schematic diagram of a limiting rod in the elevating tower crane heightening and angle transformation section angle transformation mechanism of the invention;

fig. 6 is a schematic view of the assembly process of the jack-up tower crane heightening and angle conversion section of the invention.

Fig. 7 is an assembly completion structure schematic diagram (different from the view in fig. 1) of the jack-up tower crane heightening and angle conversion section of the invention.

Detailed Description

The elevating and angle conversion section of the jack-up tower crane implemented according to the invention is shown in fig. 1-7, and comprises an upper frame structure 1, a lower frame structure 2 and an angle conversion mechanism 3; the method is characterized in that: the angle conversion mechanism 3 is installed between the adjacent upper frame structure 1 and the lower frame structure 2, and controls one side of the upper frame structure 1 and the other side of the lower frame structure 2 to deflect a certain angle through angle conversion and sliding expansion in the vertical direction.

Each upper frame structure 1 and the lower frame structure 2 are composed of 4 cavity columns with rectangular cross sections, cross rods between the columns and a plurality of oblique supporting rods, the 4 columns have two lengths, one side of each frame where two long columns are located is in butt joint, one side of each frame where two short columns are located is in butt joint, namely two long columns (an upper frame long column 11 and a lower frame long column 21) of each frame are located at the same side and are in butt joint, the two short columns (an upper frame short column 12 and a lower frame short column 22) are located at the other side and are in butt joint, a 6-face body is assembled through the cross rods 13 (or 23) and the supporting rods 14 (or 24), finally the lower cross section of the hexahedron is a horizontal plane, and the upper cross section is an inclined plane formed by the long columns and the short.

As shown in fig. 1 and 2, four upright posts of the upper frame are provided with plate-shaped upper end extending ends 112, the bottoms of the long upright posts 11 of the upper frame are provided with plate-shaped lower end extending ends 111, and the upper end extending ends 112 and the lower end extending ends 111 are arranged at 90-degree vertical positions on the plate surfaces and are provided with through holes; the upper end extension end 112 extends into each column cavity 211 of the lower frame butted above the upper end and is hinged with each other through a pin shaft, and the lower end extension end 111 extends into each column cavity 211 of the lower frame butted below the lower end and is hinged with each other through a pin shaft. The bottom of the upper frame short upright post 12 is a cavity section 121 with a vertical hole, at least one through hole is vertically arranged on the side wall of the cavity section, and the axis of the through hole is parallel to the axis of the through hole of the upper end extending end 112.

As shown in fig. 1-3, the bottom ends of the lower frame section short columns at the lowest layer are flush with each other, and an angle conversion mechanism 3 is arranged at the joint of each upper frame section short column 12 and the lower frame section short column 22.

The angle conversion mechanism 3 includes a slide member 31, a rotation member 32, and a stopper rod 35. When the angle conversion mechanism is used, the two angle conversion mechanisms 3 are arranged in an axisymmetric manner and can synchronously rotate around respective pin shafts, so that the short upright posts 12 (or 22) of the upper frame structure 1 and the lower frame structure 2 are driven to convert angles. Meanwhile, the vertical height of one side of the short upright post can be adjusted by moving and adjusting the hinged position between the sliding piece 31 and the upper frame short upright post 12.

The sliding part 31 with the hexahedral sliding block at the upper end is fixedly connected with the sliding ear plates 33 at two sides of the bottom, the sliding block at the upper end of the sliding part 31 extends into the bottom cavity section 121 of the upper frame short upright post 12 and can slide along a reserved hole channel, the sliding part 31 is provided with a through hole corresponding to the through hole on the side wall of the upper frame short upright post 12, the direction of the through hole is consistent with that of the through hole of the bottom cavity section 121 of the upper frame short upright post 12, the sliding part 31 and the bottom cavity section 121 are connected and fixed through a pin shaft 34, and the opening and closing angle and the vertical height of the; the sliding lug plates 33 and the rotating pieces 32 clamped in the sliding lug plates are provided with pin holes at the upper ends thereof and are hinged into a whole through pin shafts, the bottom ends of the rotating pieces 32 are provided with hinge holes in an arc plate shape, the bottom ends of the rotating pieces 32 are inserted into the lower frame short column cavity 221 and are hinged through another pin shaft 34 and rotate in the lower frame structure short column cavity 221 along with the angle change between the upper frame and the lower frame, so that the stable angle change of the upper frame and the lower frame is ensured.

The limiting rod 35 comprises a threaded section 352 and a bottom hinged section 351, threads are arranged on the periphery of the threaded section 352, a limiting nut is respectively sleeved on the upper portion and the lower portion of the threaded section 352, the bottom hinged section 351 and the bottom end of the rotating part 32 are both in an arc plate shape and provided with hinged holes, as shown in fig. 6, the hinged holes of the hinged section 351 and the bottom end of the rotating part 32 are coaxially arranged and hinged through a pin shaft 34, and the hinged holes at the bottom end of the rotating part 32 and the through hole of the sliding part 31 are perpendicular to each other; when the upper frame structure 1 and the lower frame structure 2 are combined, the bottom end of the rotating part 32 is inserted into the cavity 221 of one of the lower frame short columns, the hinge section 351 of the limiting rod 35 is arranged outside the cavity 221 of the lower frame short column 22 in parallel, and a pin shaft 34 penetrates through the hinge hole of the side wall of the lower frame short column to hinge the bottom end of the rotating part 32, the hinge section 351 and the lower frame short column 22 together. Threaded section 352 is disposed through the vertical pass of crossbar 13.

According to the self-elevating tower crane heightening and angle conversion section, as shown in fig. 6-7, when the whole conversion section is assembled, firstly, one sides of long vertical columns of an upper frame structure 1 and a lower frame structure 2 are butted (111 and 211 are butted), then one sides of short vertical columns of the upper frame structure 1 and the lower frame structure 2 are butted, and meanwhile, two angle conversion mechanisms 3 are combined at the short vertical columns 12 (or 22), specifically, the upper frame short vertical columns 12 are fixed by the aid of the pin shafts penetrating through cavity sections 121 at the bottoms of the upper frame short vertical columns 12 and sliders at the upper ends of sliding pieces 31, and the bottom ends of rotating pieces 32, hinged sections 351 and lower frame short vertical columns 22 are hinged together by the aid of the pin shafts penetrating through side wall hinge holes of the. When the upper frame structure 1 and the lower frame structure 2 rotate relatively, the limiting rod 35 can rotate through the threaded section 352, the opening and closing angle of the upper frame structure 1 and the lower frame structure 2 can be finely adjusted through the limiting nut, and the upper frame structure and the lower frame structure can be locked after the angle reaches the design requirement, as shown in fig. 7, the upper frame and the lower frame of the conversion joint are ensured not to be dislocated in the using process.