Tower crane mounting structure, method and auxiliary mounting assembly for a tower crane

Abstract

The application belongs to the field of engineering machinery, and discloses a tower crane mounting structure, a mounting method and an auxiliary mounting assembly for a tower crane. The tower crane mounting structure comprises a tower crane including an A-frame and a hoist arm, and an auxiliary mounting assembly including a first connecting piece and a second connecting piece arranged in sequence along the arm length direction of the hoist arm, the front end of the first connecting piece and the rear end of the second connecting piece being hingedly connected to each other; during the mounting process of the hoist arm, the rear end of the first connecting piece is hingedly connected to the bottom of the A-frame, and the front end of the second connecting piece is hingedly connected to the top edge of the rear end of the hoist arm, so that the relative position of the A-frame and the hoist arm can be limited. By using the auxiliary mounting assembly, the process of limiting the relative position of the A-frame and the hoist arm can be more convenient, faster and safer, so that the efficiency and safety of the tower crane mounting are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering machinery, in particular to a tower crane installation structure, a tower crane installation method and an auxiliary installation assembly for a tower crane. BACKGROUND

[0002] During the installation of a jib tower crane, the relative position between the jib and the A-frame needs to be limited by an installation rope. In the process, the jib needs to be lifted by an auxiliary crane, and then the installation rope on the jib is installed on the A-frame. The installation personnel need to connect the installation rope with a pin on the A-frame. After the installation of the tower crane is completed, the installation rope needs to be removed. In the process, the installation personnel need to repeatedly go up and down the A-frame, which is laborious, time-consuming and unsafe. In addition, since the length of the jib may change, multiple installation points need to be provided on the jib to meet the installation requirements of the installation rope, which increases the manufacturing complexity. The installation rope also needs to be combined according to different jib lengths, which brings difficulties to the disassembly and assembly of the tower crane, increases the disassembly and assembly cost of the tower crane, and the installation rope is also easy to get caught on the jib, which brings risks to the use of the tower crane. SUMMARY

[0003] In view of at least one of the above defects or deficiencies of the prior art, the present application provides a tower crane installation structure, method and auxiliary installation assembly for a tower crane, which can make the process of limiting the relative position of the A-frame and the jib more convenient, faster and safer, thereby improving the efficiency and safety of the installation of the tower crane.

[0004] To achieve the above-mentioned purpose, the first aspect of the present application provides a tower crane installation structure, comprising:

[0005] a tower crane comprising an A-frame and a jib; and

[0006] an auxiliary installation assembly comprising a first connecting member and a second connecting member arranged in sequence along the length direction of the jib, the front end of the first connecting member and the rear end of the second connecting member being hingedly connected to each other;

[0007] In the installation process of the jib, the rear end of the first connecting member is hingedly connected to the bottom of the A-frame, and the front end of the second connecting member is hingedly connected to the top edge of the rear end of the jib, so as to limit the relative position of the A-frame and the jib.

[0008] Optionally, the A-frame comprises two A-frame front support rods arranged in parallel and at intervals, the first connecting member is formed as a bifurcated member and comprises a bifurcated member front end and two bifurcated member rear ends, the bifurcated member front end is hingedly connected to the rear end of the second connecting member, and the two bifurcated member rear ends are respectively hingedly connected to the bottoms of the two A-frame front support rods.

[0009] Optionally, the hoist arm is formed as a truss arm and comprises a truss arm top chord arranged to extend along the arm length direction, a rear end portion of the truss arm top chord is formed with a top chord joint, the second connecting member is formed as a straight rod member and comprises a straight rod member body and a straight rod member front joint and a straight rod member rear joint respectively extending from front and rear ends of the straight rod member body, the straight rod member front joint is hinged to the top chord joint, and the straight rod member rear joint is hinged to the front end portion of the first connecting member.

[0010] Optionally, the auxiliary mounting assembly further comprises a reinforcing support rod for reinforcing support of the first connecting member, upper and lower ends of the reinforcing support rod are respectively hinged to the front end portion of the first connecting member and the bottom of the A-frame.

[0011] Optionally, the reinforcing support rod is formed as a detachable support rod which can be detached from the tower crane mounting structure.

[0012] Optionally, the rear end portion of the first connecting member is detachably hinged to the bottom of the A-frame, and / or the front end portion of the second connecting member is detachably hinged to the top edge of the rear end portion of the hoist arm.

[0013] Optionally, in a state that the front end portion of the second connecting member and the top edge of the rear end portion of the hoist arm are detached from each other and the rear end portion of the first connecting member is hinged to the bottom of the A-frame, the first connecting member and the second connecting member can be adjusted to be arranged in a bent shape, so that the first connecting member abuts against the peripheral wall of the A-frame and the second connecting member is placed on the top surface of the upper support of the tower crane.

[0014] The second aspect of the present application provides an auxiliary mounting assembly for a tower crane, comprising:

[0015] a first connecting member and a second connecting member arranged in sequence along an arm length direction of a hoist arm, a front end portion of the first connecting member is hinged to a rear end portion of the second connecting member, a rear end portion of the first connecting member is used for being hinged to a bottom of an A-frame, and a front end portion of the second connecting member is used for being hinged to a top edge of a rear end portion of the hoist arm, so as to be able to limit the relative position of the A-frame and the hoist arm; and

[0016] a reinforcing support rod for reinforcing support of the first connecting member, an upper end of the reinforcing support rod is hinged to the front end portion of the first connecting member, and a lower end of the reinforcing support rod is used for being hinged to the bottom of the A-frame.

[0017] Optionally, the first connecting member is formed as a bifurcated member, the bifurcated member comprises a bifurcated member front end portion hinged to the rear end portion of the second connecting member and two bifurcated member rear end portions respectively used for being hinged to bottoms of two A-frame front support rods.

[0018] Optionally, the second connecting member is formed as a straight rod member, which comprises a straight rod member body, a straight rod member front joint extending from a front end of the straight rod member body and used for being hinged with an upper chord joint arranged on a top edge of a rear end portion of the crane boom, and a straight rod member rear joint extending from a rear end of the straight rod member body and being hinged with a front end portion of the first connecting member.

[0019] Optionally, the reinforcing support rod is formed as a detachable support rod which can be independently detached; and / or, the rear end portion of the first connecting member is arranged to be detachably hinged with a bottom portion of the A-frame; and / or, the front end portion of the second connecting member is arranged to be detachably hinged with the top edge of the rear end portion of the crane boom.

[0020] The third aspect of the present application provides a tower crane installation method, which is performed by means of the above-mentioned auxiliary installation assembly for a tower crane, and comprises:

[0021] moving the crane boom to a preset installation position;

[0022] connecting the auxiliary installation assembly between the A-frame and the crane boom to limit the relative position of the A-frame and the crane boom;

[0023] installing the crane boom in the tower crane;

[0024] disconnecting the auxiliary installation assembly from the A-frame and the crane boom after the installation of the crane boom is completed.

[0025] Optionally, disconnecting the auxiliary installation assembly from the A-frame and the crane boom after the installation of the crane boom is completed comprises:

[0026] disconnecting the hinge between the front end portion of the second connecting member and the top edge of the rear end portion of the crane boom;

[0027] independently detaching the detachable support rod;

[0028] adjusting the first connecting member and the second connecting member to be arranged in a bent shape and rotating the rear end portion of the first connecting member relative to the bottom portion of the A-frame, so that the first connecting member abuts against the peripheral wall of the A-frame, and the second connecting member is placed on the top surface of the upper support of the slewing mechanism of the tower crane.

[0029] Optionally, connecting the auxiliary installation assembly between the A-frame and the crane boom to limit the relative position of the A-frame and the crane boom comprises:

[0030] connecting the first connecting member and the second connecting member which have been hinged with each other between the A-frame and the crane boom;

[0031] The upper and lower ends of the detachable supporting rod are respectively hinged with the front end of the first connecting piece and the bottom of the A-shaped frame.

[0032] Optionally, before moving the hoisting arm to the preset installation position, the rear end of the first connecting piece is kept hinged with the bottom of the A-shaped frame, and the first connecting piece and the second connecting piece are adjusted to be arranged in a bent shape, so that the first connecting piece is kept against the peripheral wall of the A-shaped frame, and the second connecting piece is kept placed on the top surface of the upper support of the tower crane.

[0033] By the above technical solution, in the process of installing the hoisting arm, the auxiliary installation assembly is connected between the bottom of the A-shaped frame and the top edge of the rear end of the hoisting arm to limit the relative position of the A-shaped frame and the hoisting arm. Compared with the prior art, the auxiliary installation assembly can be installed at a lower height, the operator does not need to repeatedly get in and out of the A-shaped frame, and does not need to adjust the position of the installation rope according to the length of the hoisting arm, and there is no case that the installation rope is hung on the hoisting arm. In this way, the process of limiting the A-shaped frame and the hoisting arm can be more convenient and faster, and the safety is higher, and at the same time, the A-shaped frame and the hoisting arm can be kept at the relative position limited by the auxiliary installation assembly, and the reliability of the auxiliary installation assembly is improved.

[0034] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the present application, but do not constitute a limitation on the present application. In the drawings:

[0036] Figure 1 is a schematic view of a tower crane installation structure in the specific embodiment of the present application;

[0037] Figure 2 is a schematic view of a tower crane installation structure in the specific embodiment of the present application; Figure 1 is a partial enlarged view of the tower crane installation structure in

[0038] Figure 3 is a schematic view of an auxiliary installation assembly in Figure 1

[0039] Figure 4 is another schematic view of an auxiliary installation assembly in Figure 1

[0040] Figures 5 to 8 is a schematic view of each step sequentially executed in a tower crane installation method in the specific embodiment of the present application.

[0041] Explanation of reference signs: ​​

[0042] 1 auxiliary mounting assembly 2 A-frame

[0043] 3 lifting arm 4 upper swivel support

[0044] 11 first connecting member 12 second connecting member

[0045] 13 reinforcing support rod 21 A-frame front support rod

[0046] 31 truss arm upper chord

[0047] 121 straight rod member body 122 straight rod member front joint

[0048] 123 straight rod member rear joint 311 upper chord joint DETAILED DESCRIPTION

[0049] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and explanatory and are not intended to limit the present application.

[0050] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0051] In the embodiments of the present application, the orientation words such as "upper", "lower", "top", "bottom" are generally used for the directions shown in the drawings or the positional relationship between the components in the vertical, perpendicular or gravity direction, unless otherwise specified.

[0052] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiments.

[0053] As shown in Figures 1 to 4 The first exemplary embodiment of the present application provides a tower crane mounting structure, which comprises a tower crane and an auxiliary mounting assembly 1. Specifically, the tower crane comprises an A-frame 2 and a lifting arm 3, and the auxiliary mounting assembly 1 comprises a first connecting member 11 and a second connecting member 12, which are arranged in sequence along the arm length direction of the lifting arm 3, and the front end of the first connecting member 11 and the rear end of the second connecting member 12 are hinged to each other.

[0054] During the installation of the lifting arm 3, the rear end of the first connecting member 11 is hinged to the bottom of the A-frame 2, and the front end of the second connecting member 12 is hinged to the top edge of the rear end of the lifting arm 3, so as to limit the relative position of the A-frame 2 and the lifting arm 3.

[0055] By setting the above structure, the auxiliary installation assembly 1 is connected between the bottom of the A-frame 2 and the top edge of the rear end of the crane boom 3 to limit the relative position of the A-frame 2 and the crane boom 3, so as to subsequently complete the installation of the crane boom 3. Compared with the prior art, the auxiliary installation assembly 1 can be installed at a lower height, the operator does not need to repeatedly get in and out of the A-frame 2, and does not need to adjust the position of the auxiliary installation assembly 1 according to the length of the crane boom 3, and there is no situation that the installation rope hangs the crane boom. In this way, the process of limiting the A-frame 2 and the crane boom 3 can be more convenient and efficient, and the safety is higher, and at the same time, the A-frame 2 and the crane boom 3 can be kept at the relative position limited by the auxiliary installation assembly 1, and the reliability of the auxiliary installation assembly 1 is improved. In addition, the connection point of the auxiliary installation assembly 1 and the crane boom 3 is fixed, and multiple connection points do not need to be arranged due to the change of the length of the crane boom 3. Compared with the prior art, the auxiliary installation assembly 1 of the embodiment is more simple to manufacture.

[0056] In an embodiment, the A-frame 2 includes two A-frame front support rods 21 arranged in parallel and spaced apart, the first connecting piece 11 is formed as a forked piece and includes a forked piece front end and two forked piece rear ends, the forked piece front end is hinged to the rear end of the second connecting piece 12, and the two forked piece rear ends are respectively hinged to the bottoms of the two A-frame front support rods 21. The first connecting piece 11 formed as a forked piece can ensure that the tension of the first connecting piece 11 can be uniformly transmitted to the two A-frame front support rods 21 of the A-frame 2 during the installation of the crane boom 3. In addition, the first connecting piece 11 formed as a forked piece can reduce the weight and save certain manufacturing cost while ensuring the stability of the connection of the second connecting piece 12 and the A-frame 2.

[0057] In an embodiment, the crane boom 3 is formed as a truss arm and includes a truss arm top chord 31 arranged in extension along the length direction of the arm, the rear end of the truss arm top chord 31 is formed with a top chord joint 311, the second connecting piece 12 is formed as a straight rod piece and includes a straight rod piece body 121 and a straight rod piece front joint 122 and a straight rod piece rear joint 123 respectively extending from the front and rear ends of the straight rod piece body 121, the straight rod piece front joint 122 is hinged to the top chord joint 311, and the straight rod piece rear joint 123 is hinged to the front end of the first connecting piece 11.

[0058] The top chord joint 311 formed at the rear end of the truss arm top chord 31 is matched with the straight rod piece front joint 122, so that the straight rod piece can be smoothly hinged to the rear end of the truss arm top chord 31 and not easily fall off, improving the efficiency of assembly and disassembly. The front end of the first connecting piece 11 is also matched with the straight rod piece rear joint 123, so that the two can be hinged. In addition, the material and corresponding structure of the second connecting piece 12 can be set according to the force, which is not limited in the embodiment.

[0059] In an embodiment, the auxiliary mounting assembly 1 further comprises a reinforcing support rod 13 for reinforcing the support of the first connecting member 11, the upper and lower ends of the reinforcing support rod 13 are respectively hinged to the front end of the first connecting member 11 and the bottom of the A-frame 2. The reinforcing support rod 13 is mainly arranged for supporting the first connecting member 11, so as to reinforce the stability of the auxiliary mounting assembly 1 for limiting the crane arm 3 and the A-frame 2.

[0060] Further, the reinforcing support rod 13 is formed as a detachable support rod which can be detached from the tower crane mounting structure. After the completion of the installation of the crane arm 3, when it is needed to disconnect the connection between the auxiliary mounting assembly 1 and the crane arm 3 and the A-frame 2, the reinforcing support rod 13 can be detached first.

[0061] In an embodiment, the rear end of the first connecting member 11 is detachably hinged to the bottom of the A-frame 2; and / or, the front end of the second connecting member 12 is detachably hinged to the top edge of the rear end of the crane arm 3.

[0062] In this way, when the auxiliary mounting assembly 1 is not needed for limiting the crane arm 3 and the A-frame 2, the connection between the auxiliary mounting assembly 1 and the crane arm 3 and the A-frame 2 can be disconnected, and the auxiliary mounting assembly 1 can be detached in various ways, for example, the rear end of the first connecting member 11 and the bottom of the A-frame 2 can be detached from each other, and the front end of the second connecting member 12 and the top edge of the rear end of the crane arm 3 can also be detached from each other; or the rear end of the first connecting member 11 and the bottom of the A-frame 2 can be detached from each other, while the front end of the second connecting member 12 and the top edge of the rear end of the crane arm 3 remain hinged; or the front end of the second connecting member 12 and the top edge of the rear end of the crane arm 3 can be detached from each other, while the rear end of the first connecting member 11 and the bottom of the A-frame 2 remain hinged. In actual application, the corresponding detachment mode can be selected according to the actual situation of the work site and the operation habit of the operator, and the present embodiment does not limit this.

[0063] Further, with reference to Figure 5, the first connecting piece 11 and the second connecting piece 12 can be adjusted to be arranged in a bent shape, so that the first connecting piece 11 abuts against the circumferential wall of the A-frame 2, and the second connecting piece 12 is placed on the top surface of the upper rotating support 4 of the tower crane. In this way, without the need for the auxiliary installation assembly 1 to limit the jib 3 and the A-frame 2, the auxiliary installation assembly 1 can be disassembled and stored in the tower crane, without occupying too much space and affecting the normal use of the tower crane. Compared with the disassembly of the installation rope in the prior art, the safety hazards caused to the tower crane during installation and debugging of the tower crane can be reduced, and the safety of the tower crane is more powerful. In addition, when the auxiliary installation assembly 1 needs to limit the jib 3 and the A-frame 2, the auxiliary installation assembly 1 can be quickly unfolded, thereby saving the installation time to a certain extent.

[0064] As shown in Figure 3 and Figure 4 , the second exemplary embodiment of the present application provides an auxiliary installation assembly 1 for a tower crane, comprising a first connecting piece 11 and a second connecting piece 12 and a reinforcing support rod 13. Specifically, the first connecting piece 11 and the second connecting piece 12 are arranged in sequence along the arm length direction of the jib 3, the front end of the first connecting piece 11 and the rear end of the second connecting piece 12 are hingedly connected to each other, the rear end of the first connecting piece 11 is hingedly connected to the bottom of the A-frame 2, and the front end of the second connecting piece 12 is hingedly connected to the top edge of the rear end of the jib 3, so as to limit the relative position of the A-frame 2 and the jib 3. The reinforcing support rod 13 is used to reinforce the support of the first connecting piece 11, the upper end of the reinforcing support rod 13 is hingedly connected to the front end of the first connecting piece 11, and the lower end of the reinforcing support rod 13 is hingedly connected to the bottom of the A-frame 2.

[0065] During installation of the jib 3, the first connecting piece 11 and the second connecting piece 12 are hingedly connected to the A-frame 2 and the jib 3 to limit the relative position of the jib 3 and the A-frame 2 by the auxiliary installation assembly 1, and at the same time, the first connecting piece 11 is reinforced by the reinforcing support rod 13 to improve the stability of the connection and limitation of the A-frame 2 and the jib 3 by the first connecting piece 11 and the second connecting piece 12. In this way, when the auxiliary installation assembly 1 pulls up the jib 3, the upward tilting of the first connecting piece 11 caused by the gravity of the jib 3 can be avoided, and the relative position of the jib 3 and the A-frame 2 can be relatively fixed during use, without large displacement change, thereby ensuring the reliability of the auxiliary installation assembly 1.

[0066] In an embodiment, the first connecting member 11 is formed as a forked member, which includes a front end of the forked member hinged to the rear end of the second connecting member 12, and two rear ends of the forked member respectively hinged to the bottom of the two front support rods 21 of the A-frame 2. In this way, when the boom 3 and the A-frame 2 are positioned, the force generated can be effectively decomposed to the two front support rods 21 of the A-frame 2, so that the connection between the first connecting member 11 and the A-frame 2 is more stable. In addition, the forked member can effectively reduce the weight, which can be more convenient and labor-saving in use, and can also save the manufacturing cost.

[0067] In an embodiment, the second connecting member 12 is formed as a straight rod member, which includes a straight rod member body 121, a straight rod member front joint 122, and a straight rod member rear joint 123. The straight rod member front joint 122 extends from the front end of the straight rod member body 121 and is hinged to the top chord joint 311 arranged on the top edge of the rear end of the boom 3, and the straight rod member rear joint 123 extends from the rear end of the straight rod member body 121 and is hinged to the front end of the first connecting member 11. For example, the straight rod member front joint 122 can be provided as a node plate with a fixed round pin shaft, and the top chord joint 311 is provided with a U-shaped inclined slot hole, so that the straight rod member front joint 122 can be smoothly fitted into the top chord joint 311 and not easily fall off, improving the efficiency of assembly and disassembly. The straight rod member rear joint 123 can be provided as a node plate with a pin shaft hole and is hinged to the front end of the first connecting member 11. In addition, during the positioning of the A-frame 2 and the boom 3 by using the auxiliary mounting assembly 1, the straight rod member is parallel to the top chord to ensure the stability of the auxiliary mounting assembly 1.

[0068] In an embodiment, the reinforcing support rod 13 is formed as a detachable support rod which can be independently detached; and / or, the rear end of the first connecting member 11 is arranged to be detachably hinged to the bottom of the A-frame 2; and / or, the front end of the second connecting member 12 is arranged to be detachably hinged to the top edge of the rear end of the boom 3. Specifically, the reinforcing support rod 13 can be independently detached according to the actual situation. For example, when the boom 3 is installed and does not need to be positioned by the auxiliary mounting assembly 1, the connection between the auxiliary mounting assembly 1 and the boom 3 and the A-frame 2 needs to be disconnected, the reinforcing support rod 13 can be first independently detached, and then the next operation can be performed according to the working environment and the operation habit, which can be to detach the rear end of the first connecting member 11 from the bottom of the A-frame 2, or to detach the front end of the second connecting member 12 from the rear end of the boom 3, or to detach both the first connecting member 11 and the second connecting member 12, so as to disconnect the connection between the auxiliary mounting assembly 1 and the boom 3 and the A-frame 2. Of course, the specific detachment mode is determined according to the actual situation, and the present embodiment does not limit this.

[0069] Reference Figures 5 to 8The third exemplary embodiment of the present application provides a tower crane installation method, which is performed by means of the auxiliary installation assembly 1 for a tower crane provided in the second exemplary embodiment, and comprises:

[0070] Step S1: moving the jib 3 to a preset installation position;

[0071] Step S2: connecting the auxiliary installation assembly 1 between the A-frame 2 and the jib 3 to limit the relative position of the A-frame 2 and the jib 3;

[0072] Step S3: installing the jib 3 in the tower crane;

[0073] Step S4: disconnecting the auxiliary installation assembly 1 from the A-frame 2 and the jib 3 after the installation of the jib 3 is completed.

[0074] When the tower crane installation is performed by means of the auxiliary installation assembly 1, steps S1 to S4 can be performed. Specifically, before the installation of the jib 3, the jib 3 can be moved to the preset installation position as shown in FIG. 1, and after the jib 3 is moved into position, the auxiliary installation assembly 1 is connected between the A-frame 2 and the jib 3 to limit the A-frame 2 and the jib 3 so as to subsequently install the jib 3 in the tower crane. Figure 5

[0075] In an embodiment, step S4 can comprise:

[0076] Step S41: disconnecting the hinge between the front end of the second connecting piece 12 and the top edge of the rear end of the jib 3;

[0077] Step S42: independently disassembling the detachable support rod;

[0078] Step S43: adjusting the first connecting piece 11 and the second connecting piece 12 to be arranged in a bent shape, and rotating the rear end of the first connecting piece 11 relative to the bottom of the A-frame 2, so that the first connecting piece 11 abuts against the peripheral wall of the A-frame 2, and the second connecting piece 12 is placed on the top surface of the slewing upper support 4 of the tower crane.

[0079] After the installation of the jib 3 is completed, the connection of the auxiliary installation assembly 1 to the A-frame 2 and the jib 3 can be disconnected by disconnecting the hinge between the front end of the second connecting piece 12 and the top edge of the rear end of the jib 3. Specifically, when step S4 is performed, the order of steps S41 and S42 can be exchanged, which can be performed in the order of step S41-step S42-step S43, or step S42-step S41-step S43, and the specific execution order is determined according to the actual operation. Of course, step S4 can also comprise other execution steps, as long as the connection of the auxiliary installation assembly 1 to the A-frame 2 and the jib 3 can be disconnected, which is not limited in the present embodiment. ​

[0080] In one embodiment, step S2 may include:

[0081] Step S21: Connect the first connecting piece 11 and the second connecting piece 12, which are already hinged together, between the A-frame 2 and the lifting boom 3;

[0082] Step S22: Hinge the upper and lower ends of the detachable support rod to the front end of the first connector 11 and the bottom of the A-frame 2, respectively.

[0083] In one embodiment, before step S1, the auxiliary installation component 1 can be pre-assembled on the bottom of the A-frame 2. At this time, the placement of the auxiliary installation component 1 can be as follows: Figure 5 As shown, the rear end of the first connector 11 is hinged to the bottom of the A-frame 2 and the first connector 11 and the second connector 12 are adjusted to be arranged in a bent shape so that the first connector 11 is kept against the periphery of the A-frame 2 and the second connector 12 is kept placed on the top surface of the slewing support 4 of the tower crane.

[0084] The following is combined with Figures 5 to 8 This paper provides a detailed description of an optional tower crane installation method.

[0085] like Figure 5 As shown, when the crane boom 3 needs to be installed, the auxiliary installation assembly 1 is pre-assembled on the bottom of the A-frame 2. At this time, the rear end of the first connecting piece 11 is hinged to the bottom of the A-frame 2, so that the rear end of the first connecting piece 11 can rotate relative to the bottom of the A-frame 2. Then, the hinged first connecting piece 11 and the second connecting piece 12 are adjusted to be arranged in a bent shape, so that the first connecting piece 11 abuts against the peripheral wall of the A-frame 2, and the second connecting piece 12 is placed on the top surface of the slewing upper support 4 of the tower crane. Then, the crane boom 3 is moved to the preset installation position. After the crane boom 3 is moved into place, as shown... Figure 6 and Figure 7 As shown, unfold the auxiliary installation assembly 1, connect the front end of the second connector 12 to the upper chord joint 311, and then proceed as follows. Figure 8 As shown, the upper and lower ends of the reinforcing support rod 13 are hinged to the front end of the first connecting piece 11 and the bottom of the A-frame 2, respectively, to complete the installation of the auxiliary installation assembly 1. This allows it to connect between the A-frame 2 and the boom 3 to limit the relative position of the A-frame 2 and the boom 3. Next, the boom 3 is installed in the tower crane. After the boom 3 is installed, the connection between the auxiliary installation assembly 1 and the A-frame 2 and the boom 3 is disconnected, and the reinforcing support rod 13 is removed independently. Then, the hinge between the front end of the second connecting piece 12 and the top edge of the rear end of the boom 3 is disconnected. Finally, the first connecting piece 11 and the second connecting piece 12 are adjusted as follows: Figure 5 The state shown.

[0086] The optional embodiments of the embodiments of the application are described in detail above in combination with the drawings, but the embodiments of the application are not limited to the specific details in the above-described embodiments. Within the technical concept range of the embodiments of the application, the technical solutions of the embodiments of the application can be variously and simply modified, and these simple modifications all belong to the protection range of the embodiments of the application.

[0087] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the various possible combinations are not described again by the embodiments of the application.

[0088] In addition, the various different embodiments of the embodiments of the application can also be combined in any manner, as long as it does not deviate from the idea of the embodiments of the application, and it should also be considered as disclosed by the embodiments of the application.

Claims

1. A tower crane installation structure, comprising: Tower crane, including A-frame (2) and boom (3); and The auxiliary installation assembly (1) includes a first connector (11) and a second connector (12) arranged sequentially along the arm length direction of the lifting arm (3), wherein the front end of the first connector (11) and the rear end of the second connector (12) are hinged to each other. During the installation of the boom (3), the rear end of the first connector (11) is hinged to the bottom of the A-frame (2), and the front end of the second connector (12) is hinged to the top edge of the rear end of the boom (3) to limit the relative position of the A-frame (2) and the boom (3); the A-frame (2) includes two A-frame front support rods (21) arranged in parallel and spaced apart, the first connector (11) is formed as a forked part and includes a front end of the forked part and two rear ends of the forked part, the front end of the forked part is hinged to the rear end of the second connector (12), and the two rear ends of the forked part are respectively hinged to the bottom of the two A-frame front support rods (21); The auxiliary installation assembly (1) further includes a reinforcing support rod (13) for reinforcing support of the first connector (11), the upper and lower ends of the reinforcing support rod (13) being hinged to the front end of the first connector (11) and the bottom of the A-frame (2), respectively.

2. The tower crane installation structure according to claim 1, wherein, The lifting arm (3) is formed as a truss arm and includes a truss arm upper chord (31) extending along the arm length direction. The rear end of the truss arm upper chord (31) is formed with an upper chord joint (311). The second connecting member (12) is formed as a straight member and includes a straight member body (121) and a straight member front joint (122) and a straight member rear joint (123) extending from the front and rear ends of the straight member body (121), respectively. The straight member front joint (122) is hinged to the upper chord joint (311), and the straight member rear joint (123) is hinged to the front end of the first connecting member (11).

3. The tower crane installation structure according to claim 1, wherein, The reinforcing support rod (13) is formed as a detachable support rod that can be removed from the tower crane mounting structure.

4. The tower crane installation structure according to claim 1, wherein, The rear end of the first connector (11) is detachably hinged to the bottom of the A-frame (2); and / or the front end of the second connector (12) is detachably hinged to the top edge of the rear end of the boom (3).

5. The tower crane installation structure according to claim 4, wherein, With the front end of the second connector (12) detached from the top edge of the rear end of the boom (3) and the rear end of the first connector (11) hinged to the bottom of the A-frame (2), the first connector (11) and the second connector (12) can be adjusted to be arranged in a bent shape so that the first connector (11) abuts against the periphery of the A-frame (2) and the second connector (12) is placed on the top surface of the slewing upper support (4) of the tower crane.

6. An auxiliary installation component for a tower crane, comprising: The first connector (11) and the second connector (12) are arranged sequentially along the arm length direction of the boom (3). The front end of the first connector (11) and the rear end of the second connector (12) are hinged to each other. The rear end of the first connector (11) is hinged to the bottom of the A-frame (2), and the front end of the second connector (12) is hinged to the top edge of the rear end of the boom (3) so as to limit the relative position of the A-frame (2) and the boom (3). and A reinforcing support rod (13) is used to reinforce the support of the first connector (11). The upper end of the reinforcing support rod (13) is hinged to the front end of the first connector (11), and the lower end of the reinforcing support rod (13) is used to hinge to the bottom of the A-frame (2).

7. The auxiliary installation assembly for a tower crane according to claim 6, wherein, The first connector (11) is formed as a forked member, the forked member including a forked member front end hinged to the rear end of the second connector (12) and two forked member rear ends respectively hinged to the bottom of the two A-frame front support rods (21).

8. The auxiliary installation assembly for a tower crane according to claim 6, wherein, The second connector (12) is formed as a straight rod, which includes a straight rod body (121), a straight rod front connector (122) extending from the front end of the straight rod body (121) and hinged to an upper chord joint (311) provided at the rear end top edge of the boom (3), and a straight rod rear connector (123) extending from the rear end of the straight rod body (121) and hinged to the front end of the first connector (11).

9. The auxiliary installation assembly for a tower crane according to claim 6, wherein, The reinforcing support rod (13) is formed as a detachable support rod that can be removed independently; and / or, the rear end of the first connector (11) is configured to be detachably hinged to the bottom of the A-frame (2); and / or, the front end of the second connector (12) is configured to be detachably hinged to the top edge of the rear end of the boom (3).

10. A tower crane installation method, performed using an auxiliary installation assembly for a tower crane according to claim 9, and comprising: Move the lifting boom (3) to the preset installation position; The auxiliary installation assembly (1) is connected between the A-frame (2) and the boom (3) to limit the relative position of the A-frame (2) and the boom (3); The lifting boom (3) is installed in the tower crane; After the crane boom (3) is installed, disconnect the auxiliary installation assembly (1) from the A-frame (2) and the crane boom (3).

11. The tower crane installation method according to claim 10, wherein, After the crane boom (3) is installed, disconnecting the auxiliary installation assembly (1) from the A-frame (2) and the crane boom (3) includes: Disconnect the hinge between the front end of the second connector (12) and the top edge of the rear end of the lifting arm (3); The detachable support rod can be removed independently. The first connector (11) and the second connector (12) are adjusted to be arranged in a bent shape and the rear end of the first connector (11) is rotated relative to the bottom of the A-frame (2) so that the first connector (11) abuts against the periphery of the A-frame (2) and the second connector (12) is placed on the top surface of the slewing upper support (4) of the tower crane.

12. The tower crane installation method according to claim 10, wherein, Connecting the auxiliary installation assembly (1) between the A-frame (2) and the boom (3) to limit the relative position of the A-frame (2) and the boom (3) includes: The first connecting piece (11) and the second connecting piece (12), which are hinged to each other, are connected between the A-frame (2) and the lifting boom (3); The upper and lower ends of the detachable support rod are respectively hinged to the front end of the first connector (11) and the bottom of the A-frame (2).

13. The tower crane installation method according to claim 10, wherein, Before moving the boom (3) to the preset installation position, the rear end of the first connector (11) is kept hinged to the bottom of the A-frame (2) and the first connector (11) and the second connector (12) are adjusted to be arranged in a bent shape so that the first connector (11) is kept against the periphery of the A-frame (2) and the second connector (12) is kept placed on the top surface of the slewing upper support (4) of the tower crane.

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