Arm frame pulley block shaft penetrating tool of truss arm crane

Abstract

The utility model discloses a truss arm crane boom pulley block shaft penetrating tool which comprises a lifting cart and a pulley fixing tool installed on the lifting cart, the pulley fixing tool comprises a guide rail and a plurality of connecting blocks connected with the guide rail in a sliding mode, and a partition plate supporting plate is fixed to each connecting block. The partition plate supporting plates are arranged in parallel, pulley supporting frames used for supporting pulleys are arranged on the two sides of the guide rail, and grooves used for containing pulley partition plates are formed in the tops of the partition plate supporting plates. The pulley block is assembled in advance through the pulley fixing tool, shaft penetrating of the pulley block is achieved in combination with the lifting cart, the assembling steps are simplified, and the assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, in particular to a shaft-passing tooling for the boom pulley block of a truss boom crane. Background Art

[0002] As Figure 1 shown, the boom pulley block is an important part of the boom of a truss boom crane, mainly including a pulley 31, a pulley partition plate 32 and a pulley shaft 2. As Figure 2 shown, when assembling the boom pulley block currently, two workers are required to cooperate. One person is responsible for controlling the pulley shaft 2 to gradually pass through the shaft hole on one side of the boom 1, the pulley block 3 and the ear plate 11 in the middle of the boom, and the other person gradually puts the pulley block 3 and the ear plate 11 on the shaft. The two cooperate to complete the shaft-passing assembly work of the pulley block. However, the space inside the boom is narrow and the operation is restricted, so the efficiency of the whole assembly process is low. Summary of the Utility Model

[0003] Object of the Invention: Aiming at the disadvantage of low assembly efficiency of the boom pulley block, the utility model provides a shaft-passing tooling for the boom pulley block of a truss boom crane.

[0004] Technical Solution: To solve the above problems, the utility model adopts a shaft-passing tooling for the boom pulley block of a truss boom crane, including a lifting trolley and a pulley fixing tooling installed on the lifting trolley. The pulley fixing tooling includes a guide rail and a plurality of connecting blocks slidably connected to the guide rail. A partition plate support plate is fixed on each connecting block, and the partition plate support plates are arranged parallel to each other. Pulley support frames for supporting pulleys are arranged on both sides of the guide rail, and grooves for placing pulley partition plates are arranged at the tops of the partition plate support plates.

[0005] Furthermore, a baffle for limiting the pulley partition plate is arranged on one side of the partition plate support plate.

[0006] Furthermore, the baffle is in a C shape, the bottom of the baffle is fixed on the connecting block, and the top of the baffle is fixed on one side of the groove; the baffle is made of an elastic material.

[0007] Furthermore, a slider is arranged on the guide rail, and the connecting block is connected to the slider through a bolt. When the bolt is tightened with the slider, the position of the connecting block is fixed. When the bolt is loosened from the slider, the connecting block can slide on the guide rail.

[0008] Furthermore, it also includes a bottom plate installed on the lifting trolley. The pulley fixing tooling is installed on the bottom plate, and a stop block for limiting the bottom plate is arranged on the lifting trolley.

[0009] Further, the pulley support frame includes a horizontal section, a vertical section, and an inclined section. The horizontal section is fixed to the bottom plate, the vertical section is perpendicular to the bottom plate, and the inclined section is located at the top. When the pulley partition is placed on the partition support plate, the pulley abuts against the inclined section.

[0010] Further, the groove is semi-circular.

[0011] Beneficial effects: Compared with the prior art, the remarkable advantage of the present utility model is that the pulley set is pre-assembled through the pulley fixing tooling, and then the shaft passing of the pulley set is realized in combination with the lifting trolley, which simplifies the assembly steps and improves the assembly efficiency. Description of the Drawings

[0012] Figure 1 is an exploded view of the existing pulley set;

[0013] Figure 2 is a schematic diagram of the assembly process of the existing pulley set;

[0014] Figure 3 is a schematic diagram of the overall structure of the boom pulley set shaft passing tooling of the present utility model;

[0015] Figure 4 is a schematic diagram of the structure of the pulley fixing tooling of the present utility model;

[0016] Figure 5 is an enlarged partial structure view of the guide rail and the connecting block of the present utility model;

[0017] Figure 6 is an exploded view of the guide rail and the connecting block of the present utility model;

[0018] Figure 7 is a front view of the guide rail and the connecting block of the present utility model;

[0019] Figure 8 is a schematic diagram of the assembly of the present utility model and the pulley set;

[0020] Figure 9 is a schematic diagram of the assembly process of the present utility model. Detailed Embodiments

[0021] Such as Figures 3 to 7As shown in the figure, a shaft-passing tooling for the boom pulley block of a truss boom crane in this embodiment includes a lifting trolley 5 and a pulley fixing tooling 4 installed on the lifting trolley 5. The pulley fixing tooling 4 includes a pulley support frame 41, a guide rail 42, a connecting block 43, a bottom plate 44, a baffle 45 and a partition support plate 46. The bottom plate 44 is installed on the lifting plate of the lifting trolley 5, and a stop block 51 for limiting the bottom plate 44 is also provided on the lifting plate. The guide rail 42 and the pulley support frame 41 are installed on the bottom plate 44, and the pulley support frames 41 are symmetrically arranged on both sides of the guide rail 42. A slider 421 is provided on the guide rail 42, and the connecting block 43 is connected to the slider 421 through a bolt 431. When the bolt 431 is tightened with the slider 421, the position of the connecting block 43 is fixed. When the bolt 431 is loosened from the slider 421, the connecting block 43 can slide on the guide rail. In this embodiment, ten connecting blocks 43 are provided, and a partition support plate 46 is fixed on each connecting block 43. The partition support plates 46 are arranged parallel to each other. A groove 47 for placing the pulley partition is provided at the top of the partition support plate 46, and the groove 47 is semicircular.

[0022] A baffle 45 for limiting the pulley partition is provided on one side of the partition support plate 46. The baffle 45 is C-shaped. The bottom of the baffle 45 is fixed on the connecting block 43, and the top of the baffle 45 is fixed on one side of the groove 47. The baffle 45 is made of an elastic material. In this embodiment, baffles 45 are provided on the partition support plates 46 at both ends, as well as on the fourth and eighth partition support plates 46. The baffles at both ends are provided to prevent the pulley partitions on both sides from falling off during rising. The baffles provided in the middle are to prevent the two adjacent pulley partitions used for installation on both sides of the ear plate from fitting together, leaving an assembly space for their installation on the ear plate.

[0023] When assembling the pulley block, as Figure 8 shown, first place the pulley block on the pulley fixing tooling 4 according to the assembly position, place the pulley partition 32 in the groove 47, and the pulley 31 abuts against the pulley support frame 41. The baffle 45 limits the pulley partitions 32 on both sides and the two adjacent pulley partitions 32 in the middle. As Figure 9 shown, after the pulley block is placed, push the lifting trolley 5 under the boom, control the lifting trolley 5 to rise to the installation height. During the rising process, when the baffle 45 contacts the corresponding position structure of the boom, due to its elastic material, the baffle 45 is pressed down to avoid the shaft hole, without affecting the subsequent insertion of the pulley shaft. Manually fine-tune the rising height and the position of the lifting trolley 5, then align the pulley block with the shaft hole and ear plate positions at the boom, and insert the pulley shaft from one side to complete the assembly of the pulley block.

Claims

1. A tooling for threading the shaft of the boom pulley block of a truss boom crane, characterized in that, It includes a lifting trolley (5) and a pulley fixing tooling (4) installed on the lifting trolley (5). The pulley fixing tooling (4) includes a guide rail (42) and a plurality of connecting blocks (43) slidably connected to the guide rail (42). A partition support plate (46) is fixed on each connecting block (43). The partition support plates (46) are arranged parallel to each other. Pulley support frames (41) for supporting pulleys are provided on both sides of the guide rail (42). Grooves (47) for placing pulley partitions are provided at the tops of the partition support plates (46).

2. The shaft threading tooling for the boom pulley block of the truss boom crane according to claim 1, wherein, A baffle (45) for limiting the pulley partition is provided on one side of the partition support plate (46).

3. The shaft threading tooling for the boom pulley block of the truss boom crane according to claim 2, characterized in that, The baffle (45) is in a C shape. The bottom of the baffle (45) is fixed on the connecting block (43), and the top of the baffle (45) is fixed on one side of the groove (47). The baffle (45) is made of an elastic material.

4. The arm pulley block shaft-passing tooling for the truss boom crane according to claim 1, wherein Sliders (421) are provided on the guide rail (42). The connecting block (43) is connected to the slider (421) by bolts (431). When the bolts (431) are tightened with the sliders (421), the position of the connecting block (43) is fixed. When the bolts (431) are loosened from the sliders (421), the connecting block (43) can slide on the guide rail.

5. The shaft threading tooling for the boom pulley block of the truss boom crane according to claim 1, wherein It also includes a bottom plate (44) installed on the lifting trolley (5). The pulley fixing tooling (4) is installed on the bottom plate (44). A stop block (51) for limiting the bottom plate (44) is provided on the lifting trolley (5).

6. The shaft threading tooling for the boom pulley block of the truss boom crane according to claim 5, wherein, The pulley support frame (41) includes a horizontal section, a vertical section, and an inclined section. The horizontal section is fixed on the bottom plate (44), the vertical section is perpendicular to the bottom plate (44), and the inclined section is located at the top. When the pulley partition is placed on the partition support plate (46), the pulley abuts against the inclined section.

7. The axle threading tooling for the boom pulley block of the truss boom crane according to claim 1, wherein, The groove (47) is in a semi-circular shape.

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