CN214935574U

CN214935574U - Overload intelligent protection tower crane system

Info

Publication number: CN214935574U
Application number: CN202120479885.3U
Authority: CN
Inventors: 李维波; 张刊; 沈国仁; 楼玉川; 缪锦锦
Original assignee: Zhejiang Construction Engineering Machinery Group Co Ltd
Current assignee: Zhejiang Construction Engineering Machinery Group Co Ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-11-30
Anticipated expiration: 2031-03-05

Abstract

The utility model discloses an overload intelligent protection tower machine system, including the tower machine body, be equipped with the jib loading boom on the body tower body, be equipped with torque sensor on the jib loading boom, torque sensor electric connection PLC treater, still be equipped with the electromagnetism mechanism that opens and shuts on the jib loading boom, the electromagnetism is opened and shut and is provided with in the mechanism and inhales the pine lifting hook, electromagnetism mechanism electric connection PLC treater that opens and shuts. The utility model discloses when torque sensor detected great moment, can loosen and inhale the pine lifting hook and put down the goods, prevent that the tower machine from empting.

Description

Overload intelligent protection tower crane system

Technical Field

The utility model relates to a tower machine technical field, concretely relates to overload intelligent protection tower machine system.

Background

The tower crane is the most common hoisting equipment on the construction site, is called as a tower crane, is lengthened section by section (called as a standard section for short) and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction, and the tower crane is an essential equipment on the construction site.

At present, when a common tower crane works, the common tower crane only gives an alarm when a hanging object is overloaded, a crane boom needs to be manually controlled by a driver to be lowered, when a system gives an alarm, the driver can feel nervous, and the crane boom is easy to make mistakes when being operated.

SUMMERY OF THE UTILITY MODEL

For solving above technical problem, the utility model provides an overload intelligent protection tower machine system, moment sensor detects moment when too big, inhales the pine lifting hook through PLC treater control and puts down the goods, prevents that the tower machine from empting.

The utility model adopts the following technical scheme:

the overload intelligent protection tower crane system comprises a tower crane body, wherein a crane boom is arranged on the tower body, a torque sensor is arranged on the crane boom, the torque sensor is electrically connected with a PLC processor, an electromagnetic opening and closing mechanism is further arranged on the crane boom, a loosening absorbing lifting hook is arranged on the electromagnetic opening and closing mechanism, and the electromagnetic opening and closing mechanism is electrically connected with the PLC processor.

Preferably, the suction and release hook comprises a first hook and a second hook which are hinged with each other, and the middle parts of the first hook and the second hook are hinged with each other.

Preferably, the first lifting hook comprises a first bent part and a first connecting part, one end of the first connecting part is connected with the first bent part, a first hinge ring is arranged at the joint of one end of the first connecting part and the first bent part, the second lifting hook comprises a second bent part and a second connecting part, one end of the second bent part is connected with the second connecting part, a second hinge ring is arranged at the joint of one end of the second bent part and the second connecting part, and the first lifting hook and the second lifting hook are hinged through the first hinge ring and the second hinge ring through a pin shaft.

Preferably, the first connecting portion includes a first connecting rod and a second connecting rod perpendicular to each other, the first connecting rod is connected to the electromagnetic opening and closing mechanism, and the second connecting rod is fixedly connected to the first bent portion.

Preferably, the electromagnetic opening and closing mechanism comprises a shell, an electromagnet and a driving armature, the electromagnet is installed in the shell and electrically connected with the PLC, mounting holes are formed in two ends of the shell, one end of the driving armature is arranged in the shell, and the other end of the driving armature penetrates through the mounting holes to be hinged to the first lifting hook and the second lifting hook.

Preferably, the driving armature comprises a first armature and a second armature, the first armature is hinged with the first connecting rod, and the second armature is hinged with the second hook.

Preferably, sliding walls extend outwards from both ends of the housing.

Preferably, a spring is provided between the end of the sliding wall and each of the first and second hooks.

Preferably, the diameter of the end of the driving armature arranged in the shell is larger than that of the mounting hole.

Preferably, the crane boom is provided with a lifting hook, the lifting hook is hung with a lifting ring, the lifting ring is provided with a crane boom, and the electromagnetic opening and closing mechanism is fixed on the crane boom.

Compared with the prior art, the utility model has the advantages of it is following:

1. when the moment sensor detects that the moment is too large, the PLC processor controls the suction and loosening lifting hook to put down the goods, and the tower crane is prevented from toppling due to the fact that the moment is too large.

2. Attract first armature and second armature in order to drive first lifting hook and second lifting hook through the electro-magnet, convenient operation only needs to be through whether the PLC treater control electro-magnet is circular telegram can.

3. The spring is respectively arranged between the end part of the sliding wall and the first lifting hook and between the end part of the sliding wall and the second lifting hook, the resetting of the first lifting hook and the second lifting hook is realized through the spring, the structure is simple, and the effect is obvious.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the electromagnetic opening and closing mechanism.

Fig. 3 is a schematic structural diagram of the housing.

Fig. 4 is a schematic structural view of the first hook.

Fig. 5 is a schematic structural view of the second hook.

Fig. 6 is a circuit connection diagram.

In the figure, a torque sensor 1, a PLC processor 2, a suction and release hook 3, a first hook 31, a first bent portion 311, a first connection portion 312, a first connection rod 3121, a second connection rod 3122, a first hinge ring 313, a second hook 32, a second bent portion 321, a second connection portion 322, a second hinge ring 323, an electromagnetic opening and closing mechanism 4, a housing 41, a mounting hole 411, a sliding wall 412, an electromagnet 42, a driving armature 43, a first armature 431, a second armature 432, a lifting hook 5, a lifting ring 6, a lifting arm 7, and a spring 8.

Detailed Description

In order to facilitate understanding of the technical solutions of the present invention, the following detailed description is made with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1-6, an overload intelligent protection tower crane system comprises a tower crane body, wherein a cargo boom is arranged on the tower crane body, a torque sensor 1 is arranged on the cargo boom, the torque sensor 1 is electrically connected with a PLC processor 2, the torque sensor 1 is used for detecting the torque applied to the current cargo boom, so as to prevent the whole tower crane from toppling due to the overlarge torque, an electromagnetic opening and closing mechanism 4 is further arranged on the cargo boom, a loosening absorbing lifting hook 3 is arranged on the electromagnetic opening and closing mechanism 4, and the electromagnetic opening and closing mechanism 4 is electrically connected with the PLC processor 2 and is used for controlling the opening and closing of the loosening absorbing lifting hook 3.

Specifically, when the cargo boom moves to the corresponding position and needs to lift the cargo, the electromagnetic opening and closing mechanism 4 is controlled by the PLC processor 2 to close and grab the cargo by absorbing and loosening the lifting hook 3, and once the reading of the torque sensor 1 exceeds the set threshold, the lifting hook 3 is immediately opened and absorbed and loosened, the cargo is put down, and the tower crane is prevented from toppling over.

The suction and loosening hook 3 comprises a first hook 31 and a second hook 32 which are hinged with each other, and the middle parts of the first hook 31 and the second hook 32 are hinged with each other. The upper parts of the first hook 31 and the second hook 32 are hinged with the electromagnetic opening and closing mechanism 4, and the lower parts of the first hook 31 and the second hook 32 are used for clamping goods.

First lifting hook 31 includes first curved portion 311 and first connecting portion 312, first connecting portion 312 one end is connected with first curved portion 311, first connecting portion 312 one end is equipped with first articulated loop 313 with first curved portion 311 junction, second lifting hook 32 includes second curved portion 321 and second connecting portion 322, second curved portion 321 one end is connected with second connecting portion 322, second curved portion 321 one end is equipped with second articulated loop 323 with second connecting portion 322 junction, first lifting hook 31 and second lifting hook 32 pass first articulated loop 313 and second articulated loop 323 are articulated through the pivot. The first bent portion 311 and the second bent portion 321 are used for gripping goods. The other ends of the first connecting portion 312 and the second bent portion 321 are hinged to the electromagnetic opening and closing mechanism 4.

The first connection portion 312 includes a first connection rod 3121 and a second connection rod 3122 perpendicular to each other, the first connection rod 3121 is connected to one end of the electromagnetic opening and closing mechanism 4, and the second connection rod 3122 is fixedly connected to the first bending portion 311.

The electromagnetic opening and closing mechanism 4 comprises a shell 41, an electromagnet 42 and a driving armature 43, the electromagnet 42 is installed in the shell 41 and electrically connected with the PLC processor 2, mounting holes 411 are formed in two ends of the shell 41, one end of the driving armature 43 is arranged on the shell 41, and the other end of the driving armature 43 penetrates through the mounting holes 411 to be hinged to the first lifting hook 31 and the second lifting hook 32. When the lifting device is used, the electromagnet 42 can be magnetized only by electrifying the electromagnet 42, the armature 43 is driven by attraction, so that the first lifting hook 31 and the second lifting hook 32 are closed to grab goods, and in order to avoid attraction between the electrified electromagnet 42 and the shell 41, the shell 41 is made of plastic materials.

The driving armature 43 includes a first armature 431 and a second armature 432, the first armature 431 is hinged to the first connecting rod 3121, and the second armature 432 is hinged to the second hook 32. When the electromagnet 42 is energized, the electromagnet 42 generates magnetism, and attracts the first armature 431 and the second armature 432 to be attached to the electromagnet 42, so that the first hook 31 and the second hook 32 are controlled to be closed.

The sliding wall 412 extends outwards from both ends of the housing 41, the hollow structure in the sliding wall 412 is the installation hole 411, the first armature 431 and the second armature 432 can slide on the sliding wall 412, and the sliding wall 412 can play a guiding role.

A spring 8 is respectively arranged between the end of the sliding wall 412 and the first and

second hooks

31 and 32, specifically, the spring 8 is located on the first and

second armatures

431 and 432, wherein one end of the spring 8 located on the first armature 431 abuts against the first connecting rod 3121, and the other end abuts against the end of the sliding wall 412, and one end of the spring 8 located on the second armature 432 abuts against the second connecting portion 322, and the other end abuts against the end of the sliding wall 412. When the electromagnet 42 is electrified, the first armature 431 and the second armature 432 can be attracted to be jointed with the electromagnet 42, at the moment, the spring 8 can be compressed, the first hook 31 and the second hook 32 are controlled to be closed, when the first hook 31 and the second hook 32 need to be opened to put down goods, the electromagnet 42 is powered off, the jointed state with the first armature 431 and the second armature 432 is released, and the first armature 431 and the second armature 432 can be moved outwards due to the restoration of the spring 8, so that the first hook 31 and the second hook 32 are opened.

The driving armature 43 is disposed in the housing 41 at an end having a diameter larger than that of the mounting hole 411. That is, the diameters of the ends of the first and

second armatures

431 and 432 located in the housing 41 are larger than the diameter of the mounting hole 411, preventing the first and

second armatures

431 and 432 from falling.

The lifting arm is provided with a lifting hook 5, the lifting hook 5 is hung with a lifting ring 6, the lifting ring 6 is provided with a lifting arm 7, and the electromagnetic opening and closing mechanism 4 is fixed on the lifting arm 7. When the loose-absorbing lifting hook 3 is not needed, the lifting ring 6, the lifting arm 7, the electromagnetic opening and closing mechanism 4 and the loose-absorbing lifting hook 3 can be detached as a module, the tower crane is used as a common tower crane, and the installation and the detachment are both convenient.

The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is defined by the scope defined by the claims, and a plurality of modifications and decorations made by those skilled in the art without departing from the spirit and scope of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. The overload intelligent protection tower crane system is characterized by comprising a tower crane body, wherein a cargo boom is arranged on the tower crane body, a torque sensor (1) is arranged on the cargo boom, the torque sensor (1) is electrically connected with a PLC (programmable logic controller) processor (2), an electromagnetic opening and closing mechanism (4) is further arranged on the cargo boom, a loosening absorption lifting hook (3) is arranged on the electromagnetic opening and closing mechanism (4), and the electromagnetic opening and closing mechanism (4) is electrically connected with the PLC processor (2).

2. An overload intelligent protection tower crane system according to claim 1, characterized in that the suction and release hook (3) comprises a first hook (31) and a second hook (32) hinged to each other, and the middle parts of the first hook (31) and the second hook (32) are hinged to each other.

3. The overload intelligent protection tower crane system as claimed in claim 2, wherein the first hook (31) comprises a first bent part (311) and a first connecting part (312), one end of the first connecting part (312) is connected with the first bent part (311), a first hinge ring (313) is arranged at the joint of one end of the first connecting part (312) and the first bent part (311), the second hook (32) comprises a second bent part (321) and a second connecting part (322), one end of the second bent part (321) is connected with the second connecting part (322), a second hinge ring (323) is arranged at the joint of one end of the second bent part (321) and the second connecting part (322), and the first hook (31) and the second hook (32) are hinged through the first hinge ring (313) and the second hinge ring (323) by a pin shaft.

4. The overload intelligent protection tower crane system as claimed in claim 3, wherein the first connection part (312) comprises a first connection rod (3121) and a second connection rod (3122) which are perpendicular to each other, the first connection rod (3121) is connected with the electromagnetic opening and closing mechanism (4), and the second connection rod (3122) is fixedly connected with the first bending part (311).

5. The overload intelligent protection tower crane system as claimed in claim 4, wherein the electromagnetic opening and closing mechanism (4) comprises a housing (41), an electromagnet (42) and a driving armature (43), the electromagnet (42) is installed in the housing (41) and electrically connected with the PLC processor (2), mounting holes (411) are formed in two ends of the housing (41), one end of the driving armature (43) is arranged in the housing (41), and the other end of the driving armature (43) penetrates through the mounting holes (411) to be hinged to the first lifting hook (31) and the second lifting hook (32).

6. An overload intelligent protection tower crane system according to claim 5, characterized in that the driving armature (43) comprises a first armature (431) and a second armature (432), the first armature (431) is hinged with the first connecting rod (3121), and the second armature (432) is hinged with the second hook (32).

7. An overload intelligent protection tower crane system according to claim 5, wherein sliding walls (412) extend outwards from both ends of the housing (41).

8. An overload intelligent protection tower crane system according to claim 7, wherein a spring (8) is arranged between the end of the sliding wall (412) and the first hook (31) and the second hook (32).

9. The overload intelligent protection tower crane system as claimed in claim 5, wherein the diameter of the end of the driving armature (43) arranged in the shell (41) is larger than that of the mounting hole (411).

10. An overload intelligent protection tower crane system as claimed in claim 1, wherein the crane boom is provided with a lifting hook (5), the lifting hook (5) is provided with a lifting ring (6), the lifting ring (6) is provided with a crane boom (7), and the electromagnetic opening and closing mechanism (4) is fixed on the crane boom (7).