A mounting and positioning device for tower crane balance arm

Abstract

A mounting and positioning device for a tower crane balance arm comprises a first positioning device, a second positioning device and a third positioning device; the first positioning device and the second positioning device are arranged on a side perpendicular to the length direction of the balance arm, and the third positioning device is arranged on the end side of the length direction of the balance arm and limits the balance arm; the first positioning device comprises a first hydraulic cylinder, an adjustment support, a cable mold and an adjustment component, the piston end of the first hydraulic cylinder is connected to the adjustment support and drives it to move to the balance arm, the outer end of the cable mold is rotatably mounted on the adjustment support, and one side is adjusted in angle by the adjustment component; the second positioning device comprises a flipping component, a support plate and a positioning plate, and the flipping component drives the support plate to flip and make the positioning plate close to the balance arm. This mounting and positioning device for a tower crane balance arm has a simple structure, which not only realizes the positioning and fixing of the balance arm, but also realizes the installation and positioning of the cable plate and the deceleration device, and is easy to install with higher precision.

Description

Technical Field

[0001] The invention relates to the field of tower cranes, and in particular to an installation and positioning device for a tower crane balance arm. Background Art

[0002] Tower crane is the most commonly used lifting equipment on construction sites. It is connected section by section to lift construction materials such as steel bars, wooden planks, concrete, steel pipes, etc. The tower crane balance arm is mainly used to support the counterweight when lifting heavy objects.

[0003] The tower crane balance arm needs to be installed with cable plates and deceleration equipment. On the one hand, the traditional tower crane balance arm itself has a long structure and cannot be stably positioned. On the other hand, the cable plates and deceleration devices have high installation accuracy requirements, such as position and angle. The traditional tower crane balance arm is inconvenient to install and cannot achieve accurate positioning, which reduces installation efficiency. Summary of the invention

[0004] The invention provides an installation and positioning device for a tower crane balance arm, which has a simple structure and can not only realize the positioning and fixing of the balance arm, but also realize the installation and positioning of a cable plate and a deceleration device, and has convenient installation and higher precision.

[0005] To achieve the above-mentioned purpose, the installation and positioning device for the tower crane balance arm comprises a first positioning device, a second positioning device and a third positioning device;

[0006] The first positioning device and the second positioning device are arranged on a side perpendicular to the length direction of the balance arm, and the third positioning device is arranged on the end side of the length direction of the balance arm and limits the position thereof;

[0007] The first positioning device includes a first hydraulic cylinder, an adjustment support, a cable mold and an adjustment assembly. The piston end of the first hydraulic cylinder is connected to the adjustment support and drives it to move to the balance arm. The outer end of the cable mold is rotatably mounted on the adjustment support, and one side is adjusted in angle through the adjustment assembly.

[0008] The second positioning device includes a flip assembly, a support plate and a positioning plate. The positioning plate is provided with a mounting hole and is fixed to one end of the support plate. The flip assembly drives the support plate to flip and makes the positioning plate close to the balance arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is an overall schematic diagram of the present invention;

[0010] Figure 2 is a schematic diagram of a first positioning device of the present invention;

[0011] Figure 3 is a schematic diagram of a second positioning device of the present invention;

[0012] Figure 4 is a left side view of a second positioning device of the present invention;

[0013] In the figure: 1. first positioning device, 11. first hydraulic cylinder, 12. adjusting support, 13. cable mold, 14. first sleeve, 15. second sleeve, 16. adjusting bolt, 2. second positioning device, 21. positioning support, 22. second hydraulic cylinder, 23. support plate, 24. positioning plate, 31. third hydraulic cylinder, 32. guide rail, 33. positioning mold, 34. supporting ear seat, 4. balance arm. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention is a tower crane balancing arm installation and positioning device. The tower crane balancing arm installation and positioning device is characterized by comprising a first positioning device 1, a second positioning device 2 and a third positioning device;

[0016] The first positioning device 1 and the second positioning device are arranged on a side perpendicular to the length direction of the balance arm 4, and the third positioning device is arranged on the end side of the length direction of the balance arm 4 and limits the position thereof;

[0017] The first positioning device 1 includes a first hydraulic cylinder 11, an adjustment support 12, a cable mold 13 and an adjustment assembly. The piston end of the first hydraulic cylinder 11 is connected to the adjustment support 12 and drives it to move to the balance arm 4. The outer end of the cable mold 13 is rotatably mounted on the adjustment support 12, and one side is adjusted in angle through the adjustment assembly.

[0018] The second positioning device 2 includes a flip assembly, a support plate 23 and a positioning plate 24 . The positioning plate 24 is provided with a mounting hole and is fixed to one end of the support plate 23 . The flip assembly drives the support plate 23 to flip and makes the positioning plate 24 close to the balance arm 4 .

[0019] Furthermore, the third positioning device includes a third hydraulic cylinder 31 and a positioning mold 33. The third hydraulic cylinder 31 is fixedly arranged, and the piston end is connected to the positioning mold 33, and drives the positioning mold 33 to slide on the guide rail 32 to match the supporting ear seat 34 installed on the end side of the balance arm 4.

[0020] Furthermore, the adjustment assembly includes a first sleeve 14, a second sleeve 15 and an adjusting bolt 16. The first sleeve 14 is rotatably mounted on the adjustment support 12 and is provided with a first internal thread. The second sleeve 15 is rotatably mounted on the cable mold 13 and is provided with a second internal thread. The first internal thread and the second internal thread are reverse threads to each other. The two ends of the adjusting bolt 16 are respectively connected to the first internal thread and the second internal thread.

[0021] Furthermore, the flip assembly includes a second hydraulic cylinder 22 , one end of the support plate 23 is rotatably mounted on the positioning support 21 via a pin, and the piston end of the second hydraulic cylinder 22 is rotatably mounted on the middle of the support plate 23 .

[0022] Furthermore, the first positioning device 1 , the second positioning device 2 and the third positioning device are all in multiple groups, and are symmetrically arranged on both sides of the balance arm 4 .

Claims

1. A tower crane balance arm installation and positioning device, characterized in that: It comprises a first positioning device (1), a second positioning device (2) and a third positioning device; The first positioning device (1) and the second positioning device (2) are both arranged on a side perpendicular to the length direction of the balancing arm (4), and the third positioning device is arranged on the end side of the length direction of the balancing arm (4) and limits the position of the balancing arm (4); The first positioning device (1) comprises a first hydraulic cylinder (11), an adjusting support (12), a cable mold (13) and an adjusting assembly, wherein the piston end of the first hydraulic cylinder (11) is connected to the adjusting support (12) and drives the adjusting support (12) to move to the balance arm (4), the outer end of the cable mold (13) is rotatably mounted on the adjusting support (12), and one side of the cable mold (13) is adjusted in angle through the adjusting assembly; The second positioning device (2) comprises a flip assembly, a support plate (23) and a positioning plate (24); the positioning plate (24) is provided with a mounting hole and the positioning plate (24) is fixed to one end of the support plate (23); the flip assembly drives the support plate (23) to flip and makes the positioning plate (24) close to the balance arm (4); The third positioning device comprises a third hydraulic cylinder (31) and a positioning mold (33); the third hydraulic cylinder (31) is fixedly arranged and the piston end is connected to the positioning mold (33), and drives the positioning mold (33) to slide on the guide rail (32), so that the positioning mold (33) matches the supporting ear seat (34) installed on the end side of the balance arm (4); The adjustment assembly comprises a first sleeve (14), a second sleeve (15) and an adjustment bolt (16); the first sleeve (14) is rotatably mounted on the adjustment support (12) and is provided with a first internal thread; the second sleeve (15) is rotatably mounted on the cable mold (13) and is provided with a second internal thread; the first internal thread and the second internal thread are reverse threads to each other; and both ends of the adjustment bolt (16) are connected to the first internal thread and the second internal thread respectively; The tilting assembly comprises a second hydraulic cylinder (22), one end of the support plate (23) is rotatably mounted on the positioning support (21) via a pin, and the piston end of the second hydraulic cylinder (22) is rotatably mounted on the middle part of the support plate (23); The first positioning device (1), the second positioning device (2) and the third positioning device all comprise multiple groups.

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