Auxiliary wheel system of tower crane

Abstract

The invention provides an auxiliary wheel system of a tower crane, which belongs to the field of building hoisting machinery and comprises a balance arm, a lifting structure, a tower top assembly, a lifting steel wire rope, a safety rope, a crane boom frame pull rod pulley, an auxiliary system and a crane boom frame after a boom frame and a tower top mechanism are mounted, the cargo boom frame is arranged at the other end of the supporting tower, and the tower top assembly is arranged at the top end of the supporting tower. By utilizing the mechanism of the tower crane, the steel wire rope system and the auxiliary wheel system, the installation of the variable-amplitude steel wire rope system, the variable-amplitude movable pulley and the boom pull rod can be completed, the use of auxiliary lifting appliances such as a truck crane is saved, the installation efficiency is improved, the cost is saved, and the direction auxiliary adjustment of accessories such as the boom pull rod in the action of the truck crane can be reduced; and the working intensity of operators is reduced.

Description

Technical Field

[0001] The invention relates to the field of building hoisting machinery, and in particular to an auxiliary wheel system of a tower crane. Background Art

[0002] The existing boom-type tower crane has no auxiliary wheel system, and requires a car crane or other lifting methods to assist in the installation during the entire installation process. It is impossible to use the installed tower top assembly for auxiliary installation. When installing the boom tie rod, the operator is also required to assist in adjusting the direction of the boom on the tower body, which increases the workload of the installation workers.

[0003] Since the entire installation process requires a car crane or auxiliary lifting equipment, the equipment hoisting takes longer time, which will increase the installation cost and reduce the installation efficiency. When installing the arm tie rod, since the tie rod is easy to swing during car hoisting, the operator needs to make auxiliary direction adjustments on the crane, which increases the workload of the operator. Therefore, it is necessary to design a tower crane auxiliary wheel system. Summary of the invention

[0004] The purpose of the present invention is to provide an auxiliary wheel system for a tower crane, so as to solve the technical problems of low installation efficiency and heavy workload of the existing tower crane.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] An auxiliary wheel system of a tower crane comprises a balancing arm, a lifting structure, a tower top assembly, a lifting steel wire rope, a safety rope, a boom pull rod pulley, an auxiliary system and a boom, wherein the balancing arm and the lifting structure are arranged at one end of a supporting tower, the boom is arranged at the other end of the supporting tower, the tower top assembly is arranged at the top of the supporting tower, the auxiliary system is arranged on the boom, the lifting steel wire rope starts from the lifting structure, passes through the top of the tower top assembly, and then passes through the auxiliary system to be connected with the boom pull rod pulley, the initial state of the boom pull rod pulley is a suspended state, one end of the safety rope is connected with the tower top assembly, and the other end of the safety rope is connected with the boom;

[0007] Use a truck crane or auxiliary lifting equipment to connect the tower top assembly, balance arm, boom and safety rope. Fix the auxiliary system on the boom. Pass the lifting wire rope through the auxiliary system and connect it to the boom pulley. Then lift the boom pulley to the corresponding fixed position of the tower top assembly. Then, the tower crane installation can be completed using the auxiliary system without using any auxiliary lifting equipment.

[0008] Furthermore, a lifting pulley block is arranged on the lifting boom, and the lifting wire rope first passes through three pulleys at the front end of the lifting pulley block and then passes through the auxiliary system arrangement.

[0009] Furthermore, the above scheme also includes a luffing wire rope and a luffing mechanism. The luffing mechanism is arranged on the balance arm, and one end of the luffing wire rope is connected to the luffing mechanism.

[0010] Furthermore, when the boom pull rod pulley is lifted onto the tower top assembly, the boom pull rod pulley becomes a luffing sliding wheel, and the luffing wire rope is passed through the luffing sliding wheel.

[0011] Furthermore, a boom pull rod is provided at the upper end of the boom, and the luffing wire rope is the end luffing wire rope after passing through the luffing sliding wheel, and the end luffing wire rope is connected to the boom pull rod.

[0012] Furthermore, the auxiliary system is an auxiliary pulley, and the auxiliary pulley is installed at the upper end of the lifting boom.

[0013] Furthermore, the installation process is as follows: pass the luffing wire rope through the luffing sliding wheel, connect the top of the luffing sliding wheel with the lifting wire rope, use the lifting structure and the luffing mechanism to cooperate to release the corresponding luffing wire rope, connect the luffing sliding wheel with the boom pull rod, separate the lifting wire rope from the auxiliary system, connect it with the boom according to the requirements of the manual, start the luffing mechanism to retract the wire rope, drive the boom pull rod to rise to a suitable angle, and complete the boom installation.

[0014] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0015] After the boom and the tower top mechanism are installed, the present invention can complete the installation of the luffing wire rope system, the luffing movable pulley and the boom tie rod by utilizing the tower crane's own mechanism, the wire rope system and the auxiliary wheel system, thereby saving the use of auxiliary lifting tools such as automobile cranes, improving installation efficiency, saving costs, and reducing the need for auxiliary direction adjustment of accessories such as the boom tie rod during the operation of the automobile crane, thereby reducing the work intensity of the operating workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the crane in the initial state of the present invention;

[0017] Figure 2 It is a schematic diagram of installing a luffing pulley block using an auxiliary wheel system in the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the crane boom of the present invention raised to a suitable angle;

[0019] Figure 4 It is a schematic diagram of the tower crane of the present invention after installation.

[0020] In the attached drawings, 1-luffing wire rope, 2-balancing arm, 3-luffing mechanism, 4-lifting structure, 5-tower top assembly, 6-lifting wire rope, 7-safety rope, 8-lifting boom pull rod pulley, 9-auxiliary system, 10-lifting boom, 11-luffing sliding wheel, 12-end luffing wire rope, 13-lifting boom pull rod. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling the reader to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0022] like Figure 1-2 As shown, an auxiliary wheel system of a tower crane includes a balancing arm 2, a lifting structure 4, a tower top assembly 5, a lifting wire rope 6, a safety rope 7, a boom pull rod pulley 8, an auxiliary system 9 and a boom 10. The balancing arm 2 and the lifting structure 4 are arranged at one end of the supporting tower, the boom 10 is arranged at the other end of the supporting tower, the tower top assembly 5 is arranged at the top of the supporting tower, the auxiliary system 9 is arranged on the boom 10, the lifting wire rope 6 starts from the lifting structure 4, passes through the top of the tower top assembly 5, and then passes through the auxiliary system 9 to be connected with the boom pull rod pulley 8. The initial state of the boom pull rod pulley 8 is a suspended state, one end of the safety rope 7 is connected to the tower top assembly 5, and the other end of the safety rope 7 is connected to the boom 10.

[0023] Use a truck crane or auxiliary lifting equipment to connect the tower top assembly 5, the balance arm 2, the lifting jib 10 and the safety rope 7. Fix the auxiliary system 9 on the lifting jib 10, pass the lifting wire rope 6 through the auxiliary system 9 and connect it with the lifting jib pull rod pulley 8, and then lift the lifting jib pull rod pulley 8 to the corresponding fixed position of the tower top assembly 5. Then, the tower crane installation can be completed using the auxiliary system 9 without using any auxiliary lifting equipment.

[0024] The wire rope of the luffing mechanism changes the angle of the boom and the active radius of the tower crane hook, and the lifting mechanism controls the lifting and lowering of the hook.

[0025] Design and install the auxiliary wheel system on the lifting boom. 2. During the installation of the tower crane, use the truck crane to install the tower top assembly and the balance arm, lift the boom and connect the safety rope. 3. Connect the lifting wire rope, and use the lifting mechanism, luffing mechanism and auxiliary wheel to connect the luffing movable pulley to the boom tie rod. 4. Use the tower crane luffing mechanism to connect the luffing movable pulley and the boom tie rod to complete the tower crane installation.

[0026] In the embodiment of the present invention, a lifting pulley block is provided on the lifting boom 10, and the lifting wire rope 6 first passes through the three pulleys at the front end of the lifting pulley block and then passes through the auxiliary system 9.

[0027] In the embodiment of the present invention, the above scheme further includes a luffing wire rope 1 and a luffing mechanism 3 . The luffing mechanism 3 is arranged on the balance arm 2 , and one end of the luffing wire rope 1 is connected to the luffing mechanism 3 .

[0028] In the embodiment of the present invention, when the boom tie rod pulley 8 is lifted onto the tower top assembly 5, the boom tie rod pulley 8 is transformed into a luffing sliding wheel 11, and the luffing wire rope 1 is arranged through the luffing sliding wheel 11.

[0029] In the embodiment of the present invention, a boom pull rod 13 is provided at the upper end of the boom 10 , and the luffing wire rope 1 after passing through the luffing sliding wheel 11 is the terminal luffing wire rope 12 , and the terminal luffing wire rope 12 is connected to the boom pull rod 13 .

[0030] In the embodiment of the present invention, the auxiliary system 9 is an auxiliary pulley, and the auxiliary pulley is installed at the upper end of the lifting boom 10.

[0031] In the embodiment of the present invention, the installation process is as follows: Figure 2 As shown, pass the luffing wire rope through the luffing movable pulley (repeated marking, same as Figure 1 The top of the luffing pulley is connected to the lifting wire rope. Figure 3 As shown in the figure, use the lifting mechanism and the luffing mechanism to release an appropriate amount of luffing wire rope, and connect the luffing movable pulley with the boom rod. Separate the lifting wire rope from the auxiliary wheel and connect it to the boom end according to the instructions. Start the luffing mechanism to retract the wire rope, drive the lifting boom rod to rise to a suitable angle, and complete the boom installation. Figure 4 shown.

[0032] After the tower top assembly is installed, it is matched with the auxiliary wheel system to realize the installation of the variable-length wire rope using only the tower crane's own lifting system, and the installation process of the lifting boom tie rod can be completed, saving the use time of auxiliary lifting equipment such as automobile cranes and improving installation efficiency.

[0033] Using the auxiliary wheel system to install the boom tie rod can reduce the number of times the operator needs to make auxiliary direction adjustments, and the operator can operate the luffing system and the lifting system for installation without having to work with the truck crane operator, thus saving the operator's work intensity.

[0034] Figure 1 It is the initial state of the auxiliary wheel system of a tower crane. After the tower body, tower top and the boom are assembled, the safety rope and lifting wire rope are pre-threaded, and the lifting wire rope and the boom pull rod pulley are lifted to the corresponding installation position on the top of the tower top assembly by a truck crane. Figure 2 This is a schematic diagram of installing the luffing pulley block using the auxiliary wheel system. Since the luffing movable pulley has a large number of wire ropes and cannot be threaded manually, the lifting wire rope and auxiliary wheel system can be used to cooperate with the luffing mechanism to pull the luffing movable pulley to the connection point of the luffing pull rod. Figure 3 As shown in the figure, after firmly connecting the luffing movable pulley block with the arm tie rod, operate the luffing mechanism, raise the lifting arm to a suitable angle, and complete the tower crane installation. Figure 4 shown.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A tower crane auxiliary wheel system, characterized in that: The invention comprises a balancing arm (2), a lifting structure (4), a tower top assembly (5), a lifting steel wire rope (6), a safety rope (7), a lifting arm pull rod pulley (8), an auxiliary system (9) and a lifting arm (10); the balancing arm (2) and the lifting structure (4) are arranged at one end of a supporting tower, the lifting arm (10) is arranged at the other end of the supporting tower, the tower top assembly (5) is arranged at the top of the supporting tower, the auxiliary system (9) is arranged on the lifting arm (10), the lifting steel wire rope (6) starts from the lifting structure (4), passes through the top of the tower top assembly (5), and then passes through the auxiliary system (9) to be connected with the lifting arm pull rod pulley (8); the initial state of the lifting arm pull rod pulley (8) is a suspended state; one end of the safety rope (7) is connected with the tower top assembly (5), and the other end of the safety rope (7) is connected with the lifting arm (10); A truck crane or an auxiliary lifting device is used to connect the tower top assembly (5), the balance arm (2), the jib (10) and the safety rope (7). The auxiliary system (9) is fixed on the jib (10). The lifting wire rope (6) passes through the auxiliary system (9) and is connected to the jib pull rod pulley (8). The jib pull rod pulley (8) is then hoisted to the corresponding fixed position of the tower top assembly (5). Then, the tower crane installation can be completed by using the auxiliary system (9) without using any auxiliary lifting device.

2. The tower crane auxiliary wheel system according to claim 1, characterized in that: A lifting pulley block is arranged on the lifting jib (10), and the lifting wire rope (6) first passes through three pulleys at the front end of the lifting pulley block and then passes through the auxiliary system (9).

3. The auxiliary wheel system for a tower crane according to claim 1, characterized in that: It also comprises a luffing steel wire rope (1) and a luffing mechanism (3), wherein the luffing mechanism (3) is arranged on the balance arm (2), and one end of the luffing steel wire rope (1) is connected to the luffing mechanism (3).

4. The auxiliary wheel system for a tower crane according to claim 3, characterized in that: When the boom pull rod pulley (8) is lifted onto the tower top assembly (5), the boom pull rod pulley (8) becomes a variable-length sliding wheel (11), and the variable-length steel wire rope (1) is passed through the variable-length sliding wheel (11).

5. The auxiliary wheel system for a tower crane according to claim 4, characterized in that: The upper end of the boom (10) is provided with a boom pull rod (13), and the luffing wire rope (1) passes through the luffing sliding wheel (11) to form a terminal luffing wire rope (12), which is connected to the boom pull rod (13).

6. The auxiliary wheel system for a tower crane according to claim 1, characterized in that: The auxiliary system (9) is an auxiliary pulley, which is installed on the upper end of the lifting boom (10).

7. The auxiliary wheel system for a tower crane according to claim 5, characterized in that: The installation process is as follows: the luffing steel wire rope (1) is passed through the luffing sliding wheel (11), the top of the luffing sliding wheel (11) is connected to the lifting steel wire rope (6), the corresponding luffing steel wire rope (1) is released by cooperating with the lifting structure (4) and the luffing mechanism (3), the luffing sliding wheel (11) is connected to the boom tie rod (13), the lifting steel wire rope (6) is separated from the auxiliary system (9), and connected to the boom (10) according to the requirements of the manual, the luffing mechanism (3) is started to retract the steel wire rope, and the boom tie rod (13) is driven to be lifted to a suitable angle, and the boom installation is completed.

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