A screw removal device for tower crane

Abstract

The utility model relates to a crane assembly device, and in particular to a screw disassembly device for a tower crane, comprising a jackhammer, a mounting plate, a telescopic rod and a fixed plate, wherein the upper end of the fixed plate is connected with the telescopic rod, the upper end of the telescopic rod is fixed with the mounting plate, the jackhammer is connected to the mounting plate, and further comprises a push plate and a support plate, the push plate is slidably connected to the fixed plate, a limited bayonet is provided at the front end of the fixed plate, the limited bayonet is shaped as 1 / 2 of the hexagonal bayonet, a support plate is provided at the corresponding position of the limited bayonet, the support plate is located at the inner ring of the limited bayonet, a groove is provided on the inner wall of the limited bayonet, and a slide rail is limited and slid in the groove. The screw is placed at the limited bayonet, a support plate is provided to support the screw, the limited bayonet and the support plate are both set to be semi-hexagonal, which can limit the screw stably, and then the jackhammer is turned on to punch and drill the screw.

Description

Technical Field

[0001] The utility model relates to crane assembly equipment, in particular to a screw disassembly device for a tower crane. Background Art

[0002] Tower cranes are large equipment that are indispensable on modern construction sites. Their assembly process not only tests the professional capabilities of engineering technicians, but also involves the precise coordination of multiple links. The assembly principle is mainly based on modular design and precise mechanical connections.

[0003] First of all, the assembly of a tower crane usually starts with the tower body. As the main structure of the entire crane, the stability and load-bearing capacity of the tower body are crucial. During the assembly process, technicians will select the appropriate number of tower sections for assembly based on the actual conditions of the construction site and the design parameters of the crane. High-strength bolt connections are used to ensure that the connections between the tower sections are firm and reliable.

[0004] Next is the assembly of the boom. The boom is a key component of the tower crane for lifting materials. The adjustment of its length and angle directly affects the operating range of the crane. During the assembly process, the technicians will connect the sections of the boom in a certain order according to the design drawings of the boom. Similarly, the high-strength bolt connection also ensures the stability and load-bearing capacity between the sections of the boom.

[0005] In the assembly process of tower crane, bolt tightening is a crucial link. However, in the prior art, when using pneumatic guns to tighten bolts, there is often a problem of inconvenience in positioning the loose bolts. Utility Model Content

[0006] In order to overcome the disadvantage that it is inconvenient to position the fastening bolts when assembling a tower crane, the utility model aims to provide a screw removal device for a tower crane.

[0007] The technical solution is: a screw removal device for a tower crane, including a pneumatic cannon, a mounting plate, a telescopic rod and a fixed plate, the upper end of the fixed plate is connected to the telescopic rod, the upper end of the telescopic rod is fixed to the mounting plate, the pneumatic cannon is connected to the mounting plate, and also includes a push plate and a support plate, the push plate is slidably connected to the fixed plate, a limiting snap-in is provided at the front end of the fixed plate, the limiting snap-in is 1 / 2 of the hexagonal snap-in, a support plate is provided at the corresponding position of the limiting snap-in, the support plate is located at the inner ring of the limiting snap-in, a groove is provided on the inner wall of the limiting snap-in, and the slide rail slides in the groove within a limited position.

[0008] As an improvement of the above scheme, it also includes a return spring and a push rod. The push rod is slidably connected to the fixed plate. A return spring is connected between the push rod and the fixed plate. A limiting hole is opened on the side of the push plate. The push rod can be slidably embedded in the limiting hole to fix the push plate in the fixed plate.

[0009] As an improvement of the above solution, a locking block is further included, which is fixed to the mounting plate, a bolt strip is slidably inserted into the bottom of the locking block, and a slot is provided on the side of the fixing plate, and the bolt strip can be slidably embedded in the slot.

[0010] As an improvement of the above solution, a pull rope is also included, and the pull rope is connected between the bolt bar and the locking block.

[0011] As an improvement of the above solution, a foam pad is also included. The inner side of the limiting clamp is provided with a foam pad.

[0012] As an improvement of the above solution, it also includes a magnet, and the support plate is provided with a magnet.

[0013] The utility model has the following advantages: the screws are placed at the limiting bayonet, a support plate is provided to support the screws, the limiting bayonet and the support plate are both arranged in a semi-hexagonal shape, the screws can be firmly limited, and then the screws are impacted and rotated by a pneumatic gun, thus solving the problem of inconvenient screw positioning during assembly of the existing tower crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the telescopic rod and the push plate of the utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the slide rail of the utility model.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the return spring and the push rod of the utility model.

[0018] The numbers in the figure are as follows: 1-air cannon, 2-mounting plate, 3-telescopic rod, 4-fixing plate, 5-push plate, 6-limiting bayonet, 7-support plate, 8-groove, 9-slide rail, 10-limiting hole, 11-reset spring, 12-thrust rod, 13-locking block, 14-pull rope, 15-foam pad, 16-magnet. DETAILED DESCRIPTION

[0019] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0020] Embodiment: A screw removal device for a tower crane, such as Figure 1-Figure 4 As shown, it includes a cannon 1, a mounting plate 2, a telescopic rod 3 and a fixed plate 4. The upper end of the fixed plate 4 is connected to the telescopic rod 3, the upper end of the telescopic rod 3 is fixed to the mounting plate 2, the cannon 1 is connected to the mounting plate 2, and also includes a push plate 5 and a support plate 7. The push plate 5 is slidably connected to the fixed plate 4, and a limiting snap-in 6 is provided at the front end of the fixed plate 4. The limiting snap-in 6 is shaped like 1 / 2 of the hexagonal snap-in. A support plate 7 is arranged at the corresponding position of the limiting snap-in 6. The support plate 7 is located at the inner ring of the limiting snap-in 6. A groove 8 is provided on the inner wall of the limiting snap-in 6, and a slide rail 9 slides in the groove 8 in a limited manner.

[0021] like Figure 1 As shown, it also includes a return spring 11 and a push rod 12. The push rod 12 is slidably connected to the fixed plate 4. The return spring 11 is connected between the push rod 12 and the fixed plate 4. A limiting hole 10 is opened on the side of the push plate 5. The push rod 12 can be slidably embedded in the limiting hole 10 to fix the push plate 5 in the fixed plate 4.

[0022] like Figure 1 As shown, it also includes a locking block 13, which is fixed to the mounting plate 2. A bolt strip is slidably connected to the bottom of the locking block 13. A slot is provided on the side of the fixing plate 4, and the bolt strip can be slidably embedded in the slot. A pull rope 14 is connected between the bolt strip and the locking block 13, and the pull rope 14 can prevent the bolt strip from falling.

[0023] like Figure 1 As shown, a foam pad 15 and a magnet 16 are also included. The foam pad 15 is arranged on the inner side of the limiting bayonet 6, and the magnet 16 is arranged on the support plate 7. The screw can be further supported and fixed by the magnet 16.

[0024] Working principle: Place the screw at the limit bayonet 6, set a support plate 7 to support the screw, and then turn on the air cannon 1 to drill the screw. A telescopic rod 3 is set between the mounting plate 2 and the fixed plate 4 to adjust the distance between the air cannon 1 and the screw, and adjust it according to the actual screw specifications. By inserting the top rod 12 into different limit holes 10, the protruding length of the fixed plate 4 relative to the push plate 5 can be adjusted.

[0025] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the utility model, but the scope of protection is limited by the content of the claims.

Claims

1. A screw removal device for a tower crane, comprising a jackhammer (1), a mounting plate (2), a telescopic rod (3) and a fixing plate (4), wherein the upper end of the fixing plate (4) is connected to the telescopic rod (3), the upper end of the telescopic rod (3) is fixed to the mounting plate (2), the jackhammer (1) is connected to the mounting plate (2), and is characterized in that: The invention also comprises a push plate (5) and a support plate (7). The push plate (5) is slidably connected to the fixed plate (4). A limit slot (6) is provided at the front end of the fixed plate (4). The limit slot (6) is shaped like 1 / 2 of a hexagonal slot. A support plate (7) is provided at a corresponding position of the limit slot (6). The support plate (7) is located at the inner ring of the limit slot (6). A groove (8) is provided on the inner wall of the limit slot (6). The slide rail (9) slides in the groove (8) in a limited manner.

2. A screw removal device for a tower crane as claimed in claim 1, characterized in that: It also includes a return spring (11) and a push rod (12), the push rod (12) is slidably connected to the fixed plate (4), the return spring (11) is connected between the push rod (12) and the fixed plate (4), and a limiting hole (10) is provided on the side of the push plate (5), and the push rod (12) can be slidably embedded in the limiting hole (10).

3. A screw removal device for a tower crane as claimed in claim 2, characterized in that: It also includes a locking block (13) which is fixed to the mounting plate (2). A bolt strip is slidably inserted into the bottom of the locking block (13). A slot is provided on the side of the fixing plate (4), and the bolt strip can be slidably inserted into the slot.

4. A screw removal device for a tower crane as claimed in claim 3, characterized in that: It also includes a pull rope (14), which is connected between the bolt bar and the locking block (13).

5. A screw removal device for a tower crane as claimed in claim 4, characterized in that: It also includes a foam pad (15), and the inner side surface of the position limiting clamping opening (6) is provided with the foam pad (15).

6. A screw removal device for a tower crane as claimed in claim 5, characterized in that: It also includes a magnet (16), and the support plate (7) is provided with the magnet (16).

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