A tower crane dismantling auxiliary device

Abstract

The present application discloses a tower crane dismantling auxiliary device, which is used to assist in dismantling the tower crane and improve the dismantling efficiency and safety. The present application includes: a main arm, a secondary arm, a pulley, a back-pull assembly and a side-pull assembly; one end of the secondary arm is fixed to the main arm, the other end of the secondary arm is fixed to the arm frame of the tower crane, the secondary arm is used to support the main arm, one end of the main arm is connected to the pulley, the other end of the main arm is fixed to the arm frame of the tower crane, the pulley is fixed to the upper end of the main arm through a rotating shaft, the pulley is used to support the steel cable of the hoist of the tower crane, the steel cable passes around the pulley, one end of the steel cable is connected to the hoist of the tower crane, and the other end is connected to the dismantling part, the steel cable lifts or lowers the dismantling part under the drive of the hoist, the back-pull assembly fixes the main arm and provides a backward balancing pull for the main arm, and the side-pull assembly fixes the main arm and provides a lateral balancing pull for the main arm.

Description

Technical Field

[0001] The present application relates to the technical field of engineering machinery, and in particular to a tower crane dismantling auxiliary device. Background Art

[0002] Tower crane is a kind of engineering machinery commonly used in construction projects. It is also called tower crane. It is connected in length (height) section by section (referred to as "standard section") and is used to lift the raw materials for construction such as steel bars, wooden slats, concrete, steel pipes, etc. Tower crane is an indispensable equipment on the construction site.

[0003] When a tower crane is dismantled, the boom of the tower crane is generally lowered on the tower body and then dismantled. However, in order to meet the large-scale operation needs on the construction site, the boom of the tower crane is generally long. In some places where space is restricted, such as when a tower crane is installed between two buildings, the boom is restricted by the buildings and cannot be lowered by itself. At this time, a part of the boom needs to be dismantled. In the prior art, a large crane is generally used to dismantle the boom. However, due to space restrictions, a large crane cannot enter the site for operation. Even if a large crane can enter the site, it takes a lot of time because it needs to be fixed and the boom is slowly unfolded. This method is very inefficient. Therefore, a safe and efficient dismantling solution is urgently needed. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a tower crane dismantling auxiliary device, comprising:

[0005] The jib crane is connected with the axle of claim 1, wherein the jib crane is connected to the axle of the crane by a pulley, and the other end of the pulley is connected with the axle of the crane to the jib crane.

[0006] Optionally, the side-pull assembly includes lifting rings and auxiliary steel cables arranged on both sides of the main support arm, one end of the auxiliary steel cable is connected to the lifting ring, and the other end of the auxiliary steel cable is connected to the boom of the tower crane.

[0007] Optionally, the main support arm is fixed to the arm of the tower crane through a first rotary hinge.

[0008] Optionally, the main support arm is fixed to the arm of the tower crane through a fixing mechanism, the fixing mechanism is provided with a fixing plate and bolts installed on both sides of the arm, the fixing plate is fixed to the arm through bolts, the first rotating hinge is provided on the fixing plate, and the main support arm is connected to the fixing plate through the first rotating hinge.

[0009] Optionally, the secondary support arm is fixed to the arm of the tower crane through a second rotary hinge.

[0010] Optionally, the main arm is fixed to the arm of the tower crane through a fixing mechanism, the fixing mechanism is provided with a fixing plate and bolts installed on both sides of the arm, the fixing plate is fixed to the arm through bolts, the second rotary hinge is provided on the fixing plate, and the secondary arm is connected to the fixing plate through the second rotary hinge.

[0011] Optionally, the secondary arm is connected to the main arm via a third rotary hinge.

[0012] Optionally, the third rotary hinge is arranged at the midpoint of the length direction of the main arm.

[0013] Optionally, the main arm is provided with an anti-jumping groove assembly, and the anti-jumping groove assembly is installed on the top of the pulley. Optionally, the main arm is provided with a fixing ring, and the fixing ring is used to connect with the hook of the chain hoist.

[0014] It can be seen from the above technical solutions that this application has the following advantages:

[0015] The device provided by the present application can be fixed on the arm of the tower crane, and a pulley is provided on the main arm. The pulley can support the steel cable of the tower crane winch, and the lifting and lowering of the demolished parts can be realized by driving the steel cable by the winch. The device can realize the demolition of the arm on the tower crane by using the tower crane winch and the arm itself, making the demolition of the arm easier and more convenient, and greatly improving the demolition efficiency. In addition, in the device provided by the present application, the main arm is provided with a rear pull component and a side pull component, which can provide the main arm with a rearward balancing pull and a lateral balancing pull, which can not only improve the strength and firmness of the device, but also overcome the lateral shaking or imbalance caused by the shaking of the tower crane at a high place, which can greatly improve the operation safety and device reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an embodiment of a tower crane dismantling auxiliary device provided in this application;

[0017] Figure 2 This is a schematic structural diagram of another embodiment of the tower crane dismantling auxiliary device provided in this application. DETAILED DESCRIPTION

[0018] When a tower crane is dismantled, the boom of the tower crane is usually lowered on the tower body and then dismantled.

[0019] In order to meet the needs of large-scale operations on construction sites, the boom of a tower crane is generally long. In some places where space is limited, such as when a tower crane is installed between two buildings, the boom is restricted by the buildings and cannot be lowered by itself. At this time, part of the boom needs to be removed. In the prior art, a large crane is generally used to remove the boom. However, due to space limitations, a large crane may not be able to enter the site for operation. Even if a large crane can enter the site, it takes a lot of time to fix and slowly unfold the boom. This method is very inefficient, so an efficient removal solution is urgently needed.

[0020] Based on this, the present application provides a tower crane dismantling auxiliary device for assisting in dismantling the tower crane and improving the dismantling efficiency.

[0021] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only used to illustrate the relative positional relationships between the various components or components, and do not particularly limit the specific installation orientations of the various components or components.

[0022] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0023] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] In addition, the structures, proportions, sizes, etc. drawn in the drawings in the present application are only used to match the contents disclosed in the specification for the technical personnel in this field to understand and read, and are not used to limit the restrictive conditions under which the present application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present application without affecting the effects and purposes that can be achieved by the present application.

[0025] The following will be combined with the drawings in this application to clearly and completely describe the technical solutions in this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] See also Figure 1 as well as Figure 2 The tower crane dismantling auxiliary device provided in this application includes:

[0027] A main arm 1, a secondary arm 2, a pulley 3, a back-pull assembly 4 and a side-pull assembly 5; one end of the secondary arm 2 is fixed to the main arm 1, and the other end of the secondary arm 2 is fixed to the arm frame 6 of the tower crane. The secondary arm 2 is used to support the main arm 1, one end of the main arm 1 is connected to the pulley 3, and the other end of the main arm 1 is fixed to the arm frame 6 of the tower crane. The pulley 3 is fixed to the upper end of the main arm 1 through a rotating shaft. The pulley 3 is used to support the steel cable of the winch of the tower crane. The steel cable passes around the pulley 3, one end of the steel cable is connected to the winch of the tower crane, and the other end is connected to the demolition part. The steel cable lifts or lowers the demolition part under the drive of the winch. The back-pull assembly 4 fixes the main arm 1 and provides a backward balancing pull for the main arm 1. The side-pull assembly 5 fixes the main arm 1 and provides a lateral balancing pull for the main arm 1.

[0028] In actual application, if the boom 6 of the tower crane is too long and is restricted by other buildings, the boom 6 cannot be removed by self-landing. It is necessary to first remove a part of the length of the boom 6, or remove the entire boom 6. When removing, the device provided in the present application is fixed on the boom 6. When fixing, the main arm 1 and the auxiliary arm 2 form a triangular structure with the boom 6 as the main force-bearing member. A pulley 3 is set on the top of the main arm 1 to support the steel cable of the winch. The lifting and lowering of the removed parts can be achieved by the winch. Since tower cranes are generally high, they are very easy to shake at heights. Especially during dismantling, the main arm 1 and the auxiliary arm 2 are easily affected and shake or even lose balance. The rear pull component 4 provides a rearward balancing pulling force to the main arm 1 to enhance the bearing capacity of the main arm 1. The side pull component 5 provides a lateral balancing pulling force to the main arm 1, which can resist a part of the lateral load of the main arm 1, thereby ensuring the lateral stability of the main arm 1. The rear pull component 4 and the side pull component 5 can improve the reliability of the device and improve the safety during dismantling of the tower crane.

[0029] The device provided in this embodiment can be fixed on the arm 6 of the tower crane. The main arm 1 is provided with a pulley 3. The pulley 3 can support the steel cable of the tower crane winch. The lifting and lowering of the demolished parts can be achieved by driving the steel cable with the winch. The device can be used to dismantle the arm 6 on the tower crane using the tower crane winch and the arm 6 itself, making the dismantling of the arm 6 simpler and more convenient, greatly improving the dismantling efficiency. In addition, in the device provided in this application, the main arm 1 is provided with a rear pull component 4 and a side pull component 5, which can provide the main arm 1 with a rearward balancing pull and a lateral balancing pull, which can not only improve the strength and firmness of the device, but also overcome the lateral shaking or imbalance caused by the shaking of the tower crane at a high altitude, which can greatly improve the operation safety and device reliability.

[0030] Optionally, the side-pull assembly 5 includes a lifting ring 51 and an auxiliary steel cable 52 arranged on both sides of the main support arm 1, one end of the auxiliary steel cable 52 is connected to the lifting ring 51, and the other end of the auxiliary steel cable 52 is connected to the boom 6 of the tower crane.

[0031] The two sides of the main arm 1 are laterally reinforced by auxiliary steel cables 52, and the auxiliary steel cables 2 are easy to fasten and remove.

[0032] Optionally, the main support arm 1 is fixed to the arm frame 6 of the tower crane through a first rotary hinge 01.

[0033] Optionally, the main arm 1 is fixed to the arm 6 of the tower crane through a fixing mechanism, and the fixing mechanism is provided with a fixing plate 11 and bolts 12 installed on both sides of the arm 6, the fixing plate 11 is fixed to the arm 6 by the bolts 12, the first rotating hinge 01 is provided on the fixing plate 11, and the main arm 1 is connected to the fixing plate 11 through the first rotating hinge 01.

[0034] Optionally, the secondary arm 2 is fixed to the arm 6 of the tower crane via a second rotary hinge 02 .

[0035] Optionally, the main arm 1 is fixed to the arm 6 of the tower crane through a fixing mechanism, and the fixing mechanism is provided with a fixing plate 11 and bolts 12 installed on both sides of the arm 6, the fixing plate 11 is fixed to the arm 6 by the bolts 12, the second rotating hinge 02 is provided on the fixing plate 11, and the secondary arm 2 is connected to the fixing plate 11 through the second rotating hinge 02.

[0036] The main arm 1 and the auxiliary arm 2 are fixed to the arm frame 6 by bolts 12 and fixing plates 11. When the tower crane is dismantled, the device can be moved or the installation position can be adjusted by this structure. The angle of the device can be adjusted by the first rotary hinge 01, the second rotary hinge 02 and the third rotary hinge 03, for example, the installation angle of the main arm 1 and the auxiliary arm 2 can be adjusted to meet different dismantling requirements.

[0037] Optionally, the secondary arm 2 is connected to the main arm 1 via a third rotary hinge 03 .

[0038] Optionally, the third rotary hinge 03 is arranged at the midpoint of the length direction of the main arm 1 .

[0039] Optionally, the rear pulling component 4 is a chain hoist.

[0040] Optionally, a fixing ring 13 is provided on the main support arm 1, and the fixing ring 13 is used to be connected to the hook of the chain hoist.

[0041] Optionally, an anti-jumping groove assembly 14 is provided on the main arm, and the anti-jumping groove assembly 14 is installed on the top of the pulley.

[0042] The anti-groove jumping component 14 can well restrict the steel cable to the pulley groove of the pulley, prevent the steel cable from jumping the groove, and improve safety.

[0043] It should be noted that the above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the present application. Various modifications to these embodiments will be apparent to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tower crane dismantling auxiliary device, characterized in that: include: The jib crane is connected with the axle of the lifting link rope, and the other end of the jib crane is connected with the axle of the lifting link rope, and the other end of the jib crane is connected with the axle of the lifting link rope. The secondary support arm is fixed to the arm frame of the tower crane through a second rotary hinge; The main support arm is fixed to the arm of the tower crane through a fixing mechanism, and the fixing mechanism is provided with fixing plates and bolts installed on both sides of the arm, the fixing plates are fixed to the arm through bolts, the second rotating hinge is provided on the fixing plate, and the secondary support arm is connected to the fixing plate through the second rotating hinge; the side pulling assembly includes lifting rings and auxiliary steel cables provided on both sides of the main support arm, one end of the auxiliary steel cable is connected to the lifting ring, and the other end of the auxiliary steel cable is connected to the arm of the tower crane; the main support arm is fixed to the arm of the tower crane through a first rotating hinge.

2. The tower crane dismantling auxiliary device according to claim 1, characterized in that: The main support arm is fixed to the arm of the tower crane through a fixing mechanism, and the fixing mechanism is provided with fixing plates and bolts installed on both sides of the arm, the fixing plates are fixed to the arm through bolts, the first rotating hinge is provided on the fixing plate, and the main support arm is connected to the fixing plate through the first rotating hinge.

3. The tower crane dismantling auxiliary device according to claim 1, characterized in that: The secondary support arm is connected to the main support arm via a third rotary hinge.

4. The tower crane dismantling auxiliary device according to claim 3, characterized in that: The third rotary hinge is arranged at the midpoint of the main arm in the length direction.

5. The tower crane dismantling auxiliary device according to any one of claims 1 to 4, characterized in that: The main support arm is provided with an anti-jumping groove assembly, and the anti-jumping groove assembly is installed on the top of the pulley.

6. The tower crane dismantling auxiliary device according to claim 5, characterized in that: The main support arm is provided with a fixing ring, and the fixing ring is used to be connected with the hook of the chain hoist.

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