A tower crane auxiliary wheel system

Abstract

The application provides a tower crane auxiliary wheel system, belonging to the field of construction hoisting machinery, comprising a balance arm, a lifting structure, a tower top assembly, a lifting steel wire rope, a safety rope, a hoisting arm frame pull rod pulley, an auxiliary system and a hoisting arm frame after the installation of an arm frame and a tower top mechanism, the balance arm and the lifting structure are arranged at one end of a supporting tower, the hoisting arm 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 itself, the steel wire rope system and the auxiliary wheel system, the installation of the amplitude steel wire rope system, the amplitude movable pulley and the arm frame pull rod can be completed, the use of an auxiliary lifting appliance such as a truck crane is saved, the installation efficiency is improved, the cost is saved, the directional auxiliary adjustment of accessories such as the arm frame pull rod in the action of the truck crane can be reduced, and the working strength of the operator is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building hoisting machinery, in particular to a tower crane auxiliary wheel system. BACKGROUND

[0002] The original auxiliary wheel system of the luffing tower crane needs to be assisted by the truck crane or other hoisting methods during the whole installation process, and cannot be assisted by the installed tower top assembly. When installing the boom pull rod, the operator needs to assist in adjusting the direction of the hoist arm on the tower, which increases the workload of the installation workers.

[0003] Due to the need for truck crane or auxiliary hoist during the whole installation process, the equipment hoisting time is longer, which increases the installation cost and reduces the installation efficiency. When installing the boom pull rod, the pull rod is prone to swing during truck hoisting, and the operator needs to assist in adjusting the direction on the crane, which increases the workload of the operator. Therefore, a tower crane auxiliary wheel system needs to be designed. SUMMARY

[0004] The purpose of the present application is to provide a tower crane auxiliary wheel system to solve the technical problems of low installation efficiency and large workload of the existing tower crane.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] A tower crane auxiliary wheel system, comprising a balance arm, a hoisting structure, a tower top assembly, a hoisting steel wire rope, a safety rope, a hoist arm frame pull rod pulley, an auxiliary system and a hoist arm frame, the balance arm and the hoisting structure are arranged at one end of the support tower, the hoist arm frame is arranged at the other end of the support tower, the tower top assembly is arranged at the top end of the support tower, the auxiliary system is arranged on the hoist arm frame, the hoisting steel wire rope is connected from the hoisting structure, passes through the top of the tower top assembly, then passes through the auxiliary system and is connected with the hoist arm frame pull rod pulley, the initial state of the hoist arm frame pull rod pulley is a suspended state, one end of the safety rope is connected with the tower top assembly, the other end of the safety rope is connected with the hoist arm frame.

[0007] The tower top assembly, the balance arm, the hoist arm frame and the safety rope are connected by using the truck crane or the auxiliary hoist, the auxiliary system is fixed on the hoist arm frame, the hoisting steel wire rope passes through the auxiliary system and is connected with the hoist arm frame pull rod pulley, then the hoist arm frame pull rod pulley is hoisted to the corresponding fixed position of the tower top assembly, then without using any auxiliary hoist, the tower crane installation can be completed by using the auxiliary system.

[0008] Further, a hoisting pulley block is arranged on the hoist arm frame, and the hoisting steel wire rope first passes through the three pulleys at the front end of the hoisting pulley block and then passes through the auxiliary system.

[0009] Further, the above scheme further comprises 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 with the luffing mechanism.

[0010] Further, when the jib frame pull rod pulley is lifted to the tower top assembly, the jib frame pull rod pulley becomes a luffing sliding pulley, and the luffing wire rope passes through the luffing sliding pulley.

[0011] Further, the upper end of the jib frame is provided with a jib frame pull rod, and the wire rope after passing through the luffing sliding pulley is a terminal luffing wire rope, and the terminal luffing wire rope is connected with the jib frame pull rod.

[0012] Further, the auxiliary system is an auxiliary pulley, and the auxiliary pulley is installed at the upper end of the jib frame.

[0013] Further, the installation process is that the luffing wire rope passes through the luffing sliding pulley, the top of the luffing sliding pulley is connected with the lifting wire rope, the corresponding luffing wire rope is released by cooperation of the lifting structure and the luffing mechanism, the luffing sliding pulley is connected with the jib frame pull rod, the lifting wire rope is separated from the auxiliary system, the jib frame is connected according to the requirements in the instruction, the luffing mechanism is started to retract the wire rope, the jib frame pull rod is lifted to a suitable angle, and the installation of the jib frame is completed.

[0014] The crane has the following beneficial effects due to the adoption of the above technical scheme.

[0015] After the jib frame and the tower top mechanism are installed, the installation of the luffing wire rope system, the luffing movable pulley and the jib frame pull rod can be completed by using the mechanism, the wire rope system and the auxiliary wheel system of the tower crane itself, the use of the auxiliary hoist such as the truck crane is saved, the installation efficiency is improved, the cost is saved, and the directional auxiliary adjustment of the jib frame pull rod and other accessories in the action of the truck crane can be reduced, and the working strength of the operator is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structure schematic view of an initial state of the crane of the present application;

[0017] Figure 2 is a schematic view of installation of a luffing pulley set by using an auxiliary wheel system of the present application;

[0018] Figure 3 is a structure schematic view of lifting of the jib frame of the present application to a suitable angle;

[0019] Figure 4 is a schematic view of completion of installation of the tower crane of the present application.

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

[0021] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below with reference to the drawings and preferred embodiments. However, it should be noted that many details in the description are only for the purpose of making the reader have a thorough understanding of one or more aspects of the present application, and the aspects of the present application can be realized even without these specific details.

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

[0023] The tower top assembly 5, the balance arm 2, the lifting boom frame 10 and the safety rope 7 are connected by using a truck crane or an auxiliary sling, the assisting system 9 is fixed on the lifting boom frame 10, the lifting wire rope 6 is passed through the assisting system 9 and connected with the lifting boom frame pull rod pulley 8, then the lifting boom frame pull rod pulley 8 is hoisted to the corresponding fixed position of the tower top assembly 5, then the tower crane installation can be completed by using the assisting system 9 without using any auxiliary sling.

[0024] The wire rope of the amplitude mechanism changes the angle of the boom frame, changes the activity radius of the hook of the tower crane, and the lifting mechanism controls the lifting of the hook.

[0025] An auxiliary wheel system is designed and installed on the lifting boom frame. 2. In the tower crane installation process, the tower top assembly and the balance arm are installed by using a truck crane, the lifting boom frame and the connecting safety rope are installed. 3. The lifting wire rope is connected, the amplitude dynamic pulley and the boom frame pull rod are connected by using the lifting mechanism, the amplitude mechanism and the auxiliary wheel. 4. The amplitude dynamic pulley and the boom frame pull rod are connected by using the tower crane amplitude mechanism, and the tower crane installation is completed.

[0026] In the embodiment of the present application, the lifting arm frame 10 is provided with a lifting pulley block, and the hoisting steel 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.

[0027] In the embodiment of the present application, the above scheme further comprises a luffing steel 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 steel wire rope 1 is connected with the luffing mechanism 3.

[0028] In the embodiment of the present application, when the lifting arm frame pull rod pulley 8 is lifted to the tower top assembly 5, the lifting arm frame pull rod pulley 8 becomes a luffing sliding pulley 11, and the luffing steel wire rope 1 is arranged through the luffing sliding pulley 11.

[0029] In the embodiment of the present application, the upper end of the lifting arm frame 10 is provided with a lifting arm frame pull rod 13, the steel wire rope after passing through the luffing sliding pulley 11 is a terminal luffing steel wire rope 12, and the terminal luffing steel wire rope 12 is connected with the lifting arm frame pull rod 13.

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

[0031] In the embodiment of the present application, the installation process is as follows: as shown in Figure 2 , the luffing steel wire rope is arranged through a luffing movable pulley (repeatedly labeled, the same as the lifting arm frame pull rod pulley of Figure 1 ), and the top of the luffing movable pulley is connected with the hoisting steel wire rope. As shown in Figure 3 , the hoisting mechanism and the luffing mechanism are matched to release an appropriate amount of luffing steel wire rope, the luffing movable pulley is connected with the arm frame pull rod. The hoisting steel wire rope is separated from the auxiliary pulley, and is connected with the arm frame end according to the requirements of the instruction manual. The luffing mechanism is started to retract the steel wire rope, the lifting arm frame pull rod is lifted to an appropriate angle, and the installation of the arm frame is completed, as shown in Figure 4 .

[0032] After the installation of the tower top assembly is completed, the auxiliary pulley system is matched, the installation of the luffing steel wire rope is completed only by using the tower crane itself, and the installation process of the lifting arm frame pull rod can be completed, the use time of the auxiliary hoist such as the truck crane is saved, and the installation efficiency is improved.

[0033] The installation of the lifting arm frame pull rod by using the auxiliary pulley system can reduce the number of times of direction adjustment by the operator, and the operator can operate the luffing system and the hoisting system to install, without cooperating with the truck crane operator, thereby saving the work intensity of the operator.

[0034] Figure 1 It is an initial state of a tower crane auxiliary pulley system, after the tower body, the tower top and the arm frame are assembled, the safety rope and the hoisting steel wire rope are pre-threaded, and the hoisting steel wire rope and the arm frame pull rod pulley are lifted to the corresponding installation position at the top of the tower top assembly by using the truck crane.Figure 2 The auxiliary wheel system is used to install the amplitude-changing pulley set. Since the number of the amplitude-changing movable pulley steel wires is large, the ropes cannot be threaded by hand. The lifting steel wire and the auxiliary wheel system can be used to pull the amplitude-changing movable pulley to the amplitude-changing pull rod connection in cooperation with the amplitude-changing mechanism. Figure 3 As shown in the figure, the amplitude-changing movable pulley set is connected with the boom pull rod stably, the amplitude-changing mechanism is operated, the lifting boom is lifted to a suitable angle, and the tower crane installation is completed. The tower crane installation is completed, as shown in the figure. Figure 4

[0035] The above is only the preferred embodiment of the present application. It should be noted that those skilled in the art can make some improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered within the scope of protection of the present application.​

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 wire rope (6), a safety rope (7), a boom pull rod pulley (8), an auxiliary system (9) and a boom (10), wherein the balancing arm (2) and the lifting structure (4) are arranged at one end of the support tower, the boom (10) is arranged at the other end of the support tower, the tower top assembly (5) is arranged at the top of the support 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 to 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); Use a car crane or auxiliary lifting equipment to connect the tower top assembly (5), the balance arm (2), the lifting arm (10) and the safety rope (7). Fix the auxiliary system (9) on the lifting arm (10). Pass the lifting wire rope (6) through the auxiliary system (9) and connect it to the lifting arm pulley (8). Then, lift the lifting arm pulley (8) 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 equipment. It also includes a luffing 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 wire rope (1) is connected to the luffing mechanism (3); When the boom pull rod pulley (8) is lifted onto the tower top assembly (5), the boom pull rod pulley (8) becomes a variable amplitude sliding wheel (11), and the variable amplitude steel wire rope (1) passes through the variable amplitude sliding wheel (11); 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).

2. The tower crane auxiliary wheel system according to claim 1, characterized in that: A lifting pulley block is provided on the lifting arm (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).

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

4. The tower crane auxiliary wheel system according to claim 1, characterized in that: The installation process is as follows: the luffing wire rope (1) is passed through the luffing sliding wheel (11), the top of the luffing sliding wheel (11) is connected to the lifting wire rope (6), the corresponding luffing 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 wire rope (6) is separated from the auxiliary system (9), and is connected to the boom (10) according to the requirements of the manual, the luffing mechanism (3) is started to retract the wire rope, and the boom tie rod (13) is driven to rise to the preset installation angle, thereby completing the boom installation.

Images