Combined tower crane conversion joint structure with adaptive connection function

Abstract

The utility model discloses a combined type tower crane conversion joint structure with an adaptive connection function, which comprises a plurality of main chord member assemblies, a plurality of connecting rods, a plurality of connecting rods and a plurality of connecting rods, wherein the two ends of the adjacent main chord member assemblies are fixed into a quadrangular frame structure through horizontally arranged cross rods; the main chord member assembly comprises an upper main chord member, a middle main chord member and a lower main chord member; wherein the upper main chord member is connected with the middle main chord member through a connecting device which can be quickly disassembled and assembled, and the middle main chord member is fixedly connected with the lower main chord member; therefore, an operator can quickly dismount and mount the conversion joint connecting device, and meanwhile, different splicing parts can be selected according to different environments; therefore, while the connection strength is ensured, the conversion joint can be replaceable, and the conversion joint can be recycled after being used; therefore, the problems of long development period, inflexible installation and high cost loss of the tower crane are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tower cranes, in particular to a combined tower crane conversion section structure with an adaptable connection function. Background Art

[0002] The conversion section is one of the key components of the tower crane. Its installation adaptability is directly related to the tower crane assembly type and even the working process. Therefore, the main chord connection device of the conversion section, as an important device for installation adaptability, directly affects the type of connected standard sections. At present, the frame structure of the conversion section in the industry is generally designed as an integral type, and the main chords are fixedly connected by welding.

[0003] When the existing tower crane is installed on the basis of the conversion section that has been manufactured, that is, when the tower crane needs to replace a different type of standard section, the existing conversion section joint cannot be adapted to it, and the punch needs to be disassembled and assembled to form the conversion section, and the conversion section structure may even need to be redesigned. As a result, the conversion and installation cannot be carried out efficiently, resulting in a waste of financial and material resources and greatly affecting the work process. In addition, the reuse rate of the conversion section is related to the design cost of the tower crane, which will greatly increase the manufacturing cost of the tower crane.

[0004] Therefore, a combined tower crane conversion section with an adaptive connection function is needed to shorten the tower crane development cycle and reduce manpower and material costs. Summary of the invention

[0005] In view of the above technical problems, the utility model provides a combined tower crane conversion section structure with an adaptive connection function, which is connected by a conversion section connecting device that can be quickly disassembled and installed. While ensuring the connection strength, the conversion section is replaceable, thereby solving the problems of long tower crane development cycle and inflexible installation.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical means:

[0007] A combined tower crane conversion section structure with an adaptive connection function includes a main chord assembly, a plurality of which are arranged vertically; wherein two ends of adjacent main chord assemblies are fixed to form a quadrangular prism frame structure by horizontally arranged cross bars;

[0008] The main chord assembly comprises an upper main chord, a middle main chord and a lower main chord;

[0009] The upper main chord is connected to the middle main chord via a connection device that can be quickly disassembled and installed, and the middle main chord is fixedly connected to the lower main chord.

[0010] The connecting device comprises:

[0011] an upper connecting plate fixed to the bottom of the upper main chord;

[0012] a lower connecting plate fixed to the top of the middle main chord;

[0013] Wherein, the upper connecting plate and the lower connecting plate are bolted together via bolt holes provided at four corners.

[0014] The bolt holes are evenly arranged in groups of two to improve the connection strength.

[0015] The lower surface of the upper connecting plate is provided with a protrusion;

[0016] The upper surface of the lower connecting plate is provided with a groove adapted to the convex block structure;

[0017] The protrusion slides in the groove to achieve pre-fixation of the upper main chord and the lower main chord.

[0018] The protrusion is a diamond-shaped structure and is used for quickly inserting into the corresponding groove.

[0019] The middle parts of the adjacent main chord assemblies are connected through a web assembly, and the connection points between the web assembly and the main chord assembly form an isosceles trapezoid, which is used to set the tower crane conversion section as a table-like structure with a narrow upper end and a wide lower end.

[0020] The belly rod assembly includes an upper tube and two oblique square tubes;

[0021] One end of the oblique square tube is detachably connected to the side of the web assembly, and two oblique square tubes are symmetrically arranged on both sides of the upper tube.

[0022] A support plate is provided at the center of the upper tube; the connecting ends of the two oblique square tubes and the corresponding upper tubes are detachably connected to the support plate, so as to improve the oblique supporting force of the oblique square tubes.

[0023] The web member assembly is provided in plurality along the arrangement direction of the main chord member assembly;

[0024] The side wall of the main chord assembly is provided with a node plate, and the node plate is used to connect adjacent web member assemblies, or to detachably connect the web member assembly with the cross bar.

[0025] Beneficial effects:

[0026] First, the conversion joint of the utility model is connected between the upper main chord and the middle main chord through a connection device that can be quickly disassembled and installed, and the upper connecting plate that cooperates with the connecting device can pre-position the lower connecting plate below; thereby, it plays a role in rapid installation and disassembly.

[0027] Secondly, the conversion joint of the utility model can be disassembled into independent parts when not in use through the detachable main chord assembly, cross bar, upper main chord, web assembly, etc.; when in use, it can be flat-packed; thereby, the utility model can select corresponding parts according to the special environment on site and make corresponding conversion joint structure, which plays a role in improving installation flexibility and reuse rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the tower crane of the utility model;

[0029] Figure 2 It is a structural schematic diagram of the main chord of the utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the upper connecting plate of the utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the lower connecting plate of the utility model;

[0032] Figure 5 It is a top view of the bolt hole of the utility model;

[0033] Figure 6 This is a schematic structural diagram of the belly rod assembly of the utility model;

[0034] Figure 7 It is a structural schematic diagram of the square tube of the utility model.

[0035] In the figure: 1, main chord assembly; 11, upper main chord; 111, upper node plate A; 112, upper pin; 113, upper node plate B; 12, connecting device; 121, upper connecting plate; 122, lower connecting plate; 123, upper rib plate; 124, fixing bolt; 125, lower rib plate; 1211, bolt hole; 13, middle main chord; 131, middle pin; 132, middle node plate A; 133, middle node plate B; 134, middle node plate C; 14, lower main chord; 2, web assembly; 21, upper web; 211, upper tube A; 212, pasting plate; 213, oblique square tube A; 22, lower web; 221, upper tube B; 222, oblique square tube B; 3, oblique web; 31, joint; 32, oblique tube; 4, upper cross bar; 5, lower cross bar. DETAILED DESCRIPTION

[0036] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] The structural schematic diagram of the utility model observation device is as follows Figure 1-7 shown.

[0038] A combined tower crane conversion section structure with an adaptive connection function includes a main chord assembly 1, which is vertically arranged in plurality; wherein the two ends of adjacent main chord assemblies 1 are fixed into a quadrangular prism frame structure by horizontally arranged cross bars; and the main chord assembly 1 includes an upper main chord 11, a middle main chord 13 and a lower main chord 14; wherein the cross bars include an upper cross bar 4 and a lower cross bar 5, which are respectively connected to the upper main chord 11 and the lower main chord 14.

[0039] Specifically, the upper main chord 11 and the middle main chord 13 are connected by a connection device 12 that can be quickly disassembled and installed, and the middle main chord 13 is fixedly connected to the lower main chord 14; wherein the upper main chord 11 and the lower main chord 14 are arranged vertically on the ground, and the middle main chord 13 is arranged inclined.

[0040] Among them, the upper connecting plate 121 is fixed to the upper main chord 11 by welding; four upper rib plates 123 are arranged, which are vertically placed at the intersection of the upper main chord 11 and the upper connecting plate 121, and are respectively fixed to the upper main chord 11 and the upper connecting plate 121 by welding; the lower connecting plate 122 is fixed to the middle main chord 13 by welding, and four lower rib plates 125 are arranged, which are respectively fixed to the middle main chord 13 and the lower connecting plate 122 by welding.

[0041] Furthermore, in order to ensure the connection strength between adjacent main chords, the upper main chord 11 is provided with an upper node plate A111 and an upper node plate B113 to facilitate the fixed connection of the diagonal web member 3 and the upper cross member 4 thereto.

[0042] The connecting device 12 includes: an upper connecting plate 121, which is fixed to the bottom of the upper main chord 11; and a lower connecting plate 122, which is fixed to the top of the middle main chord 13; wherein the upper connecting plate 121 and the lower connecting plate 122 are bolted together via bolt holes 1211 opened at four corners.

[0043] In order to ensure the connection strength of the connection device 12, four groups of bolt holes 1211 are provided, two in each group, respectively arranged at the four corners of the connection plate; the bolt holes 1211 are evenly opened in groups of two to improve the connection strength.

[0044] A protrusion is provided on the lower surface of the upper connecting plate 121; a groove adapted to the protrusion structure is provided on the upper surface of the lower connecting plate 122; the protrusion slides in the groove to achieve pre-fixation of the upper main chord 11 and the lower main chord 14; wherein the protrusion is a prismatic structure, which is used to quickly insert into the corresponding groove.

[0045] The middle parts of adjacent main chord assemblies 1 are connected by a web assembly 2, and the connection points between the web assembly 2 and the main chord assembly 1 form an isosceles trapezoid, which is used to set the tower crane conversion section as a table-like structure with a narrow upper end and a wide lower end.

[0046] The web assembly 2 includes an upper tube and two oblique square tubes; one end of the oblique square tube is fixedly connected to the side of the web assembly 2, and the two oblique square tubes are symmetrically arranged on both sides of the upper tube.

[0047] In order to strengthen the connection strength of the main chord, two groups of web members 2 are provided, namely an upper web member 21 and a lower web member 22, which are placed between the two main chords and fixedly connected to the main chords through a number of pins; the upper web member 21 and the lower web member 22 have the same structure.

[0048] Furthermore, the web member assembly 2 also includes a diagonal web member 3, which is installed on the upper main chord 11 through bolts or pins, that is, the joint 31 of the diagonal tube 32 is connected to the upper node plate A111 through the upper pin shaft 112.

[0049] Among them, the upper abdominal rod 21 includes an upper tube A211 and an oblique square tube A213; the upper tube A211 and the two oblique square tubes A213 are welded and fixed by two plates 212 to improve the oblique supporting force of the oblique square tubes; the two ends of the upper tube A211 are fixedly connected to the middle node plate A132 by the middle pin 131, and one end of the oblique square tube A213 is fixedly connected to the middle node plate B133 by the middle pin 131; the two ends of the upper tube B221 are fixedly connected to the middle node plate B133 by the middle pin 131, and one end of the lower tube B is fixedly connected to the middle node plate C134 by the middle pin 131.

[0050] In order to ensure the connection strength between the main chords, multiple web members 2 are arranged along the arrangement direction of the main chord members 1; the side walls of the main chord members 1 are provided with node plates, which are used to connect adjacent web members 2, or to connect the web members 2 with the cross bars; thereby, the web members 2 and the lower cross bars 5 are conveniently fixedly connected thereto; specifically, the middle main chord 13 is provided with a middle node plate A132, a middle node plate B133 and a middle node plate B133.

[0051] The structures of the diagonal web member 3 and the upper cross bar 4 are consistent; the diagonal web member 3 includes a joint 31 and a square tube, wherein the two ends of the square tube are fixedly connected to the two joints 31 by welding; one end of the diagonal web member 3 is fixedly connected to the upper node plate A111 by a pin, and the other end is fixedly connected to the upper node plate B113 by a pin; the two ends of the upper cross bar 4 are fixedly connected to the upper node plate A111 by a pin.

[0052] Working principle:

[0053] First, when using the conversion joint, select the appropriate upper main chord 11, middle main chord 13, lower main chord 14, web member assembly 2, cross bar, etc.; wherein, the protrusion at the upper connecting plate 121 of the upper main chord 11 slides into the groove at the lower connecting plate 122 of the middle main chord 13, so as to pre-fix the upper main chord 11 and the middle main chord 13; then, it is convenient for the subsequent upper connecting plate 121 and the lower connecting plate 122 to be fixed by the fixing bolts 124; the rest, the middle main chord 13 and the lower main chord 14 are fixed by welding.

[0054] Next, the symmetrical oblique square tubes and upper room tubes in the web assembly 2 are detachably connected to the main chord assembly 1; for example: the upper tube A211 is detachably connected to the middle node A through the upper pin 112; the connecting ends on both sides of the oblique square tube A213 in the upper web 21 are connected to the middle node plate B133 on the main chord assembly 1 through bolts, and the upper tube B221 in the lower web 22 is also connected to the middle node plate B133 through bolts; similarly, the oblique square tube B222 is connected to the middle node plate C134, and the cross bar is also connected to the node plate through bolts; thereby, a prismatic frame structure with a narrow upper opening and a wide lower opening is assembled; thus, the installation of the conversion joint is completed.

[0055] Moreover, after the use of the present invention, the bolts at the connection points can be unscrewed, and the upper main chord 11, the middle main chord 13, the upper web 21, the lower web 22, the cross bar, etc. can be disassembled in turn, waiting for subsequent reuse, thereby improving the reuse rate of the equipment.

Claims

1. A modular tower crane conversion section structure with an adaptive connection function, comprising a main chord assembly, a plurality of which are arranged vertically; wherein: The two ends of the adjacent main chord assemblies are fixed to form a quadrangular prism frame structure through horizontally arranged cross bars; the characteristics are: The main chord assembly comprises an upper main chord, a middle main chord and a lower main chord; The upper main chord is connected to the middle main chord via a connection device that can be quickly disassembled and installed, and the middle main chord is fixedly connected to the lower main chord.

2. The combined tower crane conversion section structure with adaptive connection function according to claim 1 is characterized in that: The connecting device comprises: an upper connecting plate fixed to the bottom of the upper main chord; a lower connecting plate fixed to the top of the middle main chord; Wherein, the upper connecting plate and the lower connecting plate are bolted together via bolt holes provided at four corners.

3. The combined tower crane conversion section structure with adaptive connection function according to claim 2 is characterized in that: The bolt holes are evenly arranged in groups of two to improve the connection strength.

4. The combined tower crane conversion section structure with adaptive connection function according to claim 2 is characterized in that: The lower surface of the upper connecting plate is provided with a protrusion; The upper surface of the lower connecting plate is provided with a groove adapted to the convex block structure; The protrusion slides in the groove to achieve pre-fixation of the upper main chord and the lower main chord.

5. The combined tower crane conversion section structure with adaptive connection function according to claim 4 is characterized in that: The protrusion is a diamond-shaped structure and is used for quickly inserting into the corresponding groove.

6. The combined tower crane conversion section structure with adaptive connection function according to claim 1 is characterized in that: The middle parts of the adjacent main chord assemblies are connected through a web assembly, and the connection points between the web assembly and the main chord assembly form an isosceles trapezoid, which is used to set the tower crane conversion section as a table-like structure with a narrow upper end and a wide lower end.

7. The combined tower crane conversion section structure with adaptive connection function according to claim 6 is characterized in that: The belly rod assembly includes an upper tube and two oblique square tubes; One end of the oblique square tube is detachably connected to the side of the web assembly, and two oblique square tubes are symmetrically arranged on both sides of the upper tube.

8. The combined tower crane conversion section structure with adaptive connection function according to claim 7 is characterized in that: A support plate is provided at the center of the upper tube; the connecting ends of the two oblique square tubes and the corresponding upper tubes are detachably connected to the support plate, so as to improve the oblique supporting force of the oblique square tubes.

9. The combined tower crane conversion section structure with adaptive connection function according to claim 6 is characterized in that: The web member assembly is provided in plurality along the arrangement direction of the main chord member assembly; The side wall of the main chord assembly is provided with a node plate, and the node plate is used to connect adjacent web member assemblies, or to detachably connect the web member assembly with the cross bar.

Images