CN216687228U - Laborsaving connection structure of balance arm pull rod for tower machine - Google Patents
Laborsaving connection structure of balance arm pull rod for tower machine Download PDFInfo
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- CN216687228U CN216687228U CN202123313703.4U CN202123313703U CN216687228U CN 216687228 U CN216687228 U CN 216687228U CN 202123313703 U CN202123313703 U CN 202123313703U CN 216687228 U CN216687228 U CN 216687228U
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- pull rod
- balance
- pin hole
- balance arm
- arm
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Abstract
The utility model discloses a labor-saving connecting structure of a balance arm pull rod for a tower crane, which comprises a crane boom, a balance arm and the balance pull rod, wherein the balance pull rod is a special-shaped plate part, one end of the balance pull rod is provided with a first pin hole and is hinged with the crane boom through a first pin shaft, and the gravity center of the balance pull rod is provided with a second pin hole and is hinged with the balance arm through a second pin shaft. After the balance arm of the tower crane is connected with the second pin hole, the balance pull rod is basically balanced, workers do not need to difficultly lift the balance pull rod, the connection between the crane boom and the first pin hole can be easily completed, the whole installation process is time-saving and labor-saving, the installation efficiency is high, the workers are simultaneously prevented from lifting the balance pull rod at high altitude, and potential safety hazards are reduced.
Description
Technical Field
The utility model relates to the technical field of tower cranes, in particular to a labor-saving connecting structure for a pull rod of a balance arm for a tower crane.
Background
The tower crane is called as a tower crane or a tower crane for short, the tower crane is installed in the middle of the installation process, the connecting place of a balance arm and a cargo boom is completed in the air, the balance arm is connected with an upper chord structure of the cargo boom through a pull rod, the existing connecting method of the balance arm and the cargo boom is that the pull rod is manually lifted to be connected with the balance arm and the cargo boom, and in the installation and disassembly process, the labor intensity of workers is high, the installation and disassembly process is difficult, and safety risks exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a labor-saving connecting structure of a balance arm pull rod for a tower crane, which aims to solve the problems that in the prior art, the labor intensity of workers is high, the mounting and dismounting process is difficult and the safety risk exists in the existing mode of connecting the balance arm pull rod with a crane boom by manually lifting and transporting.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a laborsaving connection structure of balance arm pull rod for tower machine, includes jib loading boom and balance arm, still includes the balance pull rod, the balance pull rod is special-shaped plate part, balance pull rod one end is provided with first pinhole, and articulates with the jib loading boom through first round pin axle, the focus department of balance pull rod is provided with the second pinhole, and articulates with the balance arm through second round pin axle.
Furthermore, the balance pull rod is an integrally formed axe-shaped connecting plate and comprises a connecting section and a counterweight section which form an included angle a, the weights of the connecting section and the counterweight section are equal, the outer end of the connecting section is provided with a first pin hole, and a second pin hole is formed in the joint of the connecting section and the counterweight section.
Further, the included angle a is 120-160 degrees, and preferably 150 degrees.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model is provided with the balance pull rod, the balance pull rod is in an axe shape, the first pin hole and the second pin hole are respectively arranged at one end and the gravity center of the balance pull rod, the balance pull rod basically keeps balance after the balance arm of the tower crane is connected with the second pin hole, a worker can easily complete the connection of the crane arm and the first pin hole without difficultly lifting the balance pull rod, the whole installation process is time-saving and labor-saving, the installation efficiency is high, meanwhile, the work of lifting the balance pull rod at high altitude by the worker is avoided, and the potential safety hazard is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the balance pull rod of the present invention;
in the figure: 1-cargo boom, 2-balance boom, 3-balance pull rod, 301-connecting section, 302-counterweight section, 303-first pin hole, 304-second pin hole, 4-first pin shaft and 5-second pin shaft.
Detailed Description
The utility model is described in detail below with reference to the figures and specific embodiments.
Referring to fig. 1-2, an embodiment of the present invention is shown:
the utility model provides a laborsaving connection structure of balance arm pull rod for tower machine, includes jib loading boom 1, balance arm 2 and balance pull rod 3, and balance pull rod 3 is special-shaped plate part, and first pinhole 303 has been seted up to balance pull rod 3 one end, and articulates with jib loading boom 1 through first round pin axle 4, and second pinhole 304 has been seted up in balance pull rod 3's focus department, and articulates with balance arm 2 through second round pin axle 5.
The balance pull rod 3 is an integrally formed axe-shaped connecting plate, and comprises a connecting section 301 and a counterweight section 302 which form an included angle of 150 degrees with each other, the weight of the connecting section 301 is equal to that of the counterweight section 302, a first pin hole 303 is formed in the outer end of the connecting section 301, a second pin hole 304 is formed in the joint of the connecting section 301 and the counterweight section 302, and the joint of the connecting section 301 and the counterweight section 302 is also the center of gravity of the balance pull rod 3.
When the balance arm 2 is connected with the crane boom 1 at high altitude, a worker firstly inserts the second pin shaft 5 into the mounting pin hole of the balance arm 2 and the second pin hole 304 of the balance pull rod 3 to complete the hinge connection of the balance arm 2 and the balance pull rod 3, and the second pin hole 304 is positioned at the gravity center of the balance pull rod 3, so that the balance pull rod 3 basically keeps balance under the condition that the gravity center is fixed, the worker can easily insert the first pin shaft 4 into the mounting pin hole of the crane boom 1 and the first pin hole 303 of the balance pull rod 3 without lifting the balance pull rod 3, so as to complete the hinge connection of the crane boom 1 and the balance pull rod 3, the whole mounting process is time-saving and labor-saving, the mounting efficiency is high, meanwhile, the work of the worker at the high altitude balance pull rod 3 is avoided, and the potential safety hazard is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a laborsaving connection structure of balance arm pull rod for tower machine, includes jib loading boom (1) and balance arm (2), its characterized in that: the crane boom is characterized by further comprising a balance pull rod (3), wherein one end of the balance pull rod (3) is provided with a first pin hole (303) and is hinged to the crane boom (1) through a first pin shaft (4), and a second pin hole (304) is formed in the gravity center of the balance pull rod (3) and is hinged to the balance arm (2) through a second pin shaft (5).
2. The labor-saving connecting structure of the balance arm pull rod for the tower crane according to claim 1, characterized in that: the balance pull rod (3) is an integrally formed axe-shaped connecting plate and comprises a connecting section (301) and a counterweight section (302) which form an included angle a, the weights of the connecting section (301) and the counterweight section (302) are equal, a first pin hole (303) is formed in the outer end of the connecting section (301), and a second pin hole (304) is formed in the joint of the connecting section (301) and the counterweight section (302).
3. The labor-saving connecting structure of the balance arm pull rod for the tower crane according to claim 2, characterized in that: the angle a is 120 ° to 160 °, preferably 150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123313703.4U CN216687228U (en) | 2021-12-27 | 2021-12-27 | Laborsaving connection structure of balance arm pull rod for tower machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123313703.4U CN216687228U (en) | 2021-12-27 | 2021-12-27 | Laborsaving connection structure of balance arm pull rod for tower machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216687228U true CN216687228U (en) | 2022-06-07 |
Family
ID=81844346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123313703.4U Active CN216687228U (en) | 2021-12-27 | 2021-12-27 | Laborsaving connection structure of balance arm pull rod for tower machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216687228U (en) |
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2021
- 2021-12-27 CN CN202123313703.4U patent/CN216687228U/en active Active
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