Auxiliary tool for mounting large fixed pulley block of crane

Abstract

The utility model relates to an auxiliary tool for installing a large fixed pulley block of a crane, the auxiliary tool is matched with a flat car or a module car for use, the auxiliary tool comprises a jacking jig frame and a supporting lifting lug, the jacking jig frame comprises two cylinder jig frame groups which are arranged in parallel, and the central axis of each cylinder jig frame group is vertically arranged; a space for vertically placing the fixed pulley block is reserved between the two cylindrical jig frame groups, the top surfaces of the two cylindrical jig frame groups are respectively provided with a first track beam for supporting the fixed pulley block, the two groups of supporting lifting lugs correspond to the two cylindrical jig frame groups in a one-to-one manner, and the two groups of supporting lifting lugs are respectively arranged on the two sides of the fixed pulley block; according to the auxiliary tool, in the jacking process, the installation angle and position of the fixed pulley block can be rapidly adjusted through the flexibility of the flat car and the module car, assistance of large hoisting equipment is not needed, the problem that the site, the hoisting equipment and the hoisting space are limited is solved, and the installation efficiency and the operation safety are greatly improved.

Description

Auxiliary tooling for installing large fixed pulley blocks on cranes Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to an auxiliary tooling for installing a large fixed pulley block of a crane. Background Technology

[0002] Currently, crane pulley blocks are typically installed at an angle on a flatbed trailer's jig, lifted into position, and then threaded through the axle. Finally, large lifting equipment is used to assist in unloading the jig. However, with the increasing variety of crane pulley block structures, sizes, and weights, this method of installation, where the pulley blocks are laid at an angle on the jig, poses a certain risk of tipping over. During the unloading process, this installation method leads to interference between the hoisting wire rope and the boom structure, wear on the island boom structure and wire rope, and excessive bending stress on the wire rope, resulting in high operational risks and demanding requirements for the installation site and hoisting equipment.

[0003] Therefore, this utility model proposes an auxiliary tooling for installing a large fixed pulley block for a crane to solve the above problems. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an auxiliary tooling for the installation of large fixed pulley blocks for cranes, so that the installation of fixed pulley blocks does not require the assistance of large lifting equipment, thereby solving the problems of site, lifting equipment and hoisting space limitations, and improving the installation efficiency and operation safety of fixed pulley blocks.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: an auxiliary tooling for installing a large fixed pulley block of a crane, the innovation of which is that the auxiliary tooling is used in conjunction with a flatbed truck or modular truck, and the auxiliary tooling includes...

[0006] The lifting frame includes two cylindrical frame groups arranged side by side. The central axis of the cylindrical frame groups is vertically arranged. There is a space between the two cylindrical frame groups for vertically placing the fixed pulley group. Each of the two cylindrical frame groups is provided with a first track beam on its top surface for supporting the fixed pulley group.

[0007] The support lugs are provided in two sets, each corresponding to one of the two cylindrical frame groups. The two sets of support lugs are respectively set on both sides of the fixed pulley group. When the fixed pulley group is vertically set between the two cylindrical frame groups, the two sets of support lugs are respectively supported by the first track beam on the top surface of the corresponding cylindrical frame group.

[0008] Furthermore, the cylindrical jig assembly includes several cylindrical jigs, each cylindrical jig being assembled from several coaxially arranged cylinders.

[0009] Furthermore, the supporting lugs and the main structural stiffeners of the fixed pulley block are integrally formed.

[0010] Furthermore, the lifting frame is arranged on a flatbed truck or modular vehicle via a steel plate. The lifting frame is arranged above the steel plate. Each of the two cylindrical frame groups is provided with a first diagonal brace on the side away from each other. The first diagonal brace is inclined from top to bottom in the direction away from the cylindrical frame group. The top end of the first diagonal brace is connected to the corresponding cylindrical frame group, and the bottom end is connected to the steel plate.

[0011] Furthermore, the lifting frame is arranged between two flatbed trucks or modular vehicles via a lifting tower;

[0012] The lifting tower includes two cylindrical tower groups that correspond one-to-one with the cylindrical frame group. The two cylindrical tower groups are set below the corresponding cylindrical frame group to support the cylindrical frame group. The two cylindrical tower groups are connected by reinforcing plates to form a whole.

[0013] The lifting tower is provided with triangular supports on both sides, which are connected to the cylindrical tower assembly on the same side. When the lifting tower is set between two flatbed trucks or modular trucks, the triangular supports on both sides of the lifting tower are supported by the flatbed trucks or modular trucks on the same side.

[0014] Furthermore, the triangular brace includes a horizontal support rod and a second diagonal brace. One end of the horizontal support rod is connected to the cylindrical tower assembly, and the central axis of the horizontal support rod is perpendicular to the central axis of the cylindrical tower assembly. The second diagonal brace is positioned above the horizontal support rod and tilts downwards away from the cylindrical tower assembly. One end of the second diagonal brace is connected to the cylindrical tower assembly, and the other end is connected to the end of the horizontal support rod away from the cylindrical tower assembly. The middle part of the second diagonal brace is connected to the middle part of the horizontal support rod through a vertical support rod, and the central axis of the vertical support rod is parallel to the central axis of the cylindrical tower assembly.

[0015] Furthermore, the reinforcing sheet includes a top horizontal brace, a snowflake-shaped central frame, and a bottom horizontal brace. The top and bottom horizontal braces are respectively disposed on the upper and lower sides of the snowflake-shaped central frame and are connected to the snowflake-shaped central frame through a first connecting plate to form a whole.

[0016] Furthermore, the two sides of the cylindrical tire frame assembly are connected to another cylindrical tire frame assembly via connecting rods to form a whole.

[0017] Furthermore, the first track beam of the cylindrical frame assembly is connected to the first track beam of another cylindrical frame assembly on both sides via a second track beam. The second track beam is positioned above the first track beam, and both sides of the second track beam are connected to the top surface of the first track beam on the same side.

[0018] The advantages of this utility model are:

[0019] (1) When installing the fixed pulley block of this utility model, the support lug is used as the support force point. The fixed pulley block is vertically arranged on the lifting frame and transported to the installation site by a flatbed truck or modular truck. During the lifting process, the installation angle and position of the fixed pulley block can be quickly adjusted by utilizing the flexibility of the flatbed truck or modular truck. No large lifting equipment is required, which solves the problem of site, lifting equipment and hoisting space limitations, and greatly improves the installation efficiency and operation safety.

[0020] (2) The cylindrical frame assembly of this utility model includes several cylindrical frames, each cylindrical frame is spliced ​​together from several coaxially arranged cylindrical frames. The height of the cylindrical frame assembly can be adjusted by adjusting the number of cylindrical frames spliced ​​together to adapt to different installation height requirements of the fixed pulley assembly.

[0021] (3) The supporting lug of this utility model is integrally formed with the main structural stiffener of the fixed pulley block. On the one hand, it improves the connection strength between the supporting lug and the fixed pulley block. On the other hand, the supporting lug can be cut and formed in advance when making the main structural stiffener of the fixed pulley block, saving work steps and improving work efficiency.

[0022] (4) The lifting frame of this utility model is arranged on a flatbed or modular vehicle by steel plates. When arranging the lifting frame, the steel plates can be used as a reference to improve the arrangement accuracy and efficiency of the lifting frame. In addition, the design of the first diagonal brace improves the stability of the lifting frame on the steel plate.

[0023] (5) The lifting frame of this utility model is arranged between two flatbed trucks or modular trucks by lifting tower, which is suitable for high-level installation of large heavy-duty fixed pulley blocks, and is firmly fixed and stable in transfer.

[0024] (6) The triangular brace of this utility model effectively reduces the probability of deformation of the outer end of the horizontal brace and improves the connection strength with the lifting tower by setting a second diagonal bar above the horizontal brace and setting a vertical brace between the second diagonal bar and the horizontal brace.

[0025] (7) The reinforcing plate of this utility model is spliced ​​together by the top horizontal brace, the snowflake-shaped middle frame and the bottom horizontal brace, which ensures the structural strength of the lifting tower and reduces the probability of deformation of the lifting tower.

[0026] (8) The two cylindrical frame groups of this utility model are connected by a connecting rod, which improves the structural strength of the lifting frame and reduces the risk of deformation caused by the increased torque due to the lifting frame being raised.

[0027] (9) By setting a second track beam on both sides of the first track beam of the cylindrical frame assembly, this utility model strengthens the structural strength of the top of the lifting frame and limits the fixed pulley assembly vertically set between the two cylindrical frame assemblies, thus preventing the fixed pulley assembly from moving relative to each other due to inertia. Attached Figure Description

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] Figure 1 is a schematic diagram of the arrangement of the support lugs of this utility model on the fixed pulley block.

[0030] Figure 2 is a front view of the lifting frame of this utility model.

[0031] Figure 3 is a top view of the lifting frame of this utility model.

[0032] Figure 4 is a schematic diagram of the lifting frame of this utility model arranged on a flatbed truck by steel plates.

[0033] Figure 5 is a front view of the lifting frame of this utility model arranged on the lifting tower.

[0034] Figure 6 is a top view of the lifting frame of this utility model arranged on the lifting tower.

[0035] Figure 7 is a schematic diagram of the lifting tower of this utility model being arranged on the modular vehicle by means of the lifting tower. Detailed Implementation

[0036] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0037] Example 1

[0038] This embodiment provides an auxiliary tooling for installing a large fixed pulley block of a crane, which is used in conjunction with a flatbed truck 4, as shown in Figures 1-4. The auxiliary tooling includes a lifting frame 2 and a support lug 1.

[0039] The lifting frame 2 includes two parallel cylindrical frame assemblies 201. Each cylindrical frame assembly 201 includes two cylindrical frames, each composed of several coaxially arranged cylinders. The height of the cylindrical frame assembly 201 can be adjusted by changing the number of cylinders in each assembly to accommodate different installation height requirements of the fixed pulley system. The central axis of each cylindrical frame in the cylindrical frame assembly 201 is vertically aligned. A space is left between the two cylindrical frame assemblies 201 for vertically placing the fixed pulley system. Each of the two cylindrical frame assemblies 201 has a first track beam 202 on its top surface to support the fixed pulley system. The first track beam 202 is connected to each cylindrical frame in the corresponding cylindrical frame assembly 201 as a whole.

[0040] In this embodiment, the lifting frame 2 is arranged on the flatbed truck 4 via a steel plate 3. The steel plate 3 is placed on the top surface of the flatbed truck 4, and the lifting frame 2 is arranged above the steel plate 3. When assembling the lifting frame 2, the steel plate can be used as a reference, improving the arrangement accuracy and efficiency of the lifting frame. To improve the stability of the lifting frame 2 on the steel plate 3, a first diagonal brace 203 is provided on the side of each of the two cylindrical frame assemblies 201 that is far apart from each other. The first diagonal brace 203 is inclined from top to bottom in the direction away from the cylindrical frame assembly 201. The top end of the first diagonal brace 203 is connected to the side wall of the corresponding cylindrical frame assembly 201, and the bottom end is connected to the steel plate 3.

[0041] Two sets of support lugs 1 are provided, each corresponding to one of the two cylindrical frame groups 201. The two sets of support lugs 1 are respectively positioned on both sides of the fixed pulley group. When the fixed pulley group is vertically positioned between the two cylindrical frame groups 201, the two sets of support lugs 1 are supported by the first track beam 202 on the top surface of the corresponding cylindrical frame group 201. The support lugs 1 are integrally formed with the main structural stiffeners of the fixed pulley group. This design improves the connection strength between the support lugs 1 and the fixed pulley group, and allows the support lugs to be cut and formed in advance during the fabrication of the main structural stiffeners of the fixed pulley group, saving work steps and improving work efficiency. In this embodiment, the fixed pulley group has two main structural stiffeners, and each set of support lugs has two support lugs, corresponding one-to-one with the two main structural stiffeners. Each support lug has a main lifting hole, and each support lug on the main structural stiffener also has an auxiliary lifting hole above it, facilitating the lifting of the fixed pulley group from a tilted position to a vertical position.

[0042] During installation, the fixed pulley block is supported by the lifting lugs as the load-bearing points. The fixed pulley block is vertically arranged on the lifting frame and transported to the installation site by a flatbed truck. During the lifting process, the flexibility of the flatbed truck can be used to quickly adjust the installation angle and position of the fixed pulley block without the need for large lifting equipment. This solves the problems of site, lifting equipment, and hoisting space limitations, and greatly improves installation efficiency and operational safety.

[0043] Example 2

[0044] This embodiment provides an auxiliary tooling for installing a large fixed pulley block of a crane, which is used in conjunction with a modular vehicle. As shown in Figures 5-7, the auxiliary tooling includes a lifting frame and a support lug. The structure of the lifting frame and the support lug in this embodiment is the same as that in Embodiment 1. The lifting frame 2 is arranged between two modular vehicles 6 through a lifting tower 5.

[0045] The lifting tower 5 includes two cylindrical tower groups 501 that correspond one-to-one with the cylindrical frame group 201. Each cylindrical tower group 501 has two cylindrical towers, which correspond one-to-one with the cylindrical frame of the corresponding cylindrical frame group 201. The cylindrical towers of the two cylindrical tower groups 501 are coaxially arranged below the cylindrical frame of the corresponding cylindrical frame group 201 to support the cylindrical frame group 201.

[0046] Two cylindrical tower assemblies 501 are connected by reinforcing plates 503 to form a whole. The four cylindrical towers of the two cylindrical tower assemblies 501 are connected by four reinforcing plates 503 to form a square frame structure. The reinforcing plates 503 include a top horizontal brace, a snowflake-shaped middle frame and a bottom horizontal brace. The top horizontal brace and the bottom horizontal brace are respectively set on the upper and lower sides of the snowflake-shaped middle frame and are connected to the snowflake-shaped middle frame through the first connecting plate to form a whole. The setting of the reinforcing plates 503 ensures the structural strength of the lifting tower 5 and reduces the probability of deformation of the lifting tower 5.

[0047] The lifting tower 5 is equipped with triangular supports 502 on both sides, with one triangular support corresponding to each cylindrical tower. The triangular supports 502 are connected to the corresponding cylindrical tower. When the lifting tower 5 is set between two modular vehicles 6, the triangular supports 502 on both sides of the lifting tower 5 are supported by the modular vehicles 6 on the same side. The triangular supports 502 include a horizontal support rod and a second diagonal support. One end of the horizontal support rod is connected to the side wall of the cylindrical tower assembly 501, and the central axis of the horizontal support rod is perpendicular to the central axis of the cylindrical tower assembly. The second diagonal support is set above the horizontal support rod and tilts from top to bottom away from the cylindrical tower assembly 501. One end of the second diagonal support is connected to the side wall of the cylindrical tower assembly 501, and the other end is connected to the end of the horizontal support rod away from the cylindrical tower assembly 501. The middle part of the second diagonal support is connected to the middle part of the horizontal support rod through a vertical support rod, and the central axis of the vertical support rod is parallel to the central axis of the cylindrical tower assembly 501.

[0048] To improve the stability of the lifting frame 2 raised by the lifting tower 5 and reduce the risk of deformation due to increased torque caused by the lifting frame 2 being raised, the cylindrical frame assembly 201 is connected to another cylindrical frame assembly 201 on both sides by horizontally arranged connecting rods 205 to form a whole. The cylindrical frames of the two cylindrical frame assemblies 201 are connected to the cylindrical frames of the other cylindrical frame assembly on the same side by two connecting rods 205. In addition, the first track beam 202 of the cylindrical frame assembly 201 is connected to the first track beam of the other cylindrical frame assembly on both sides by a second track beam 204. The second track beam 204 is located above the first track beam 202, and its two sides are connected to the top surface of the first track beam 202 on the same side. The second track beam 204 can strengthen the structural strength of the top of the lifting frame 2 and limit the fixed pulley assembly vertically arranged between the two cylindrical frame assemblies 201 to prevent the fixed pulley assembly from moving relative to each other due to inertia.

[0049] In this embodiment, the lifting frame 2 is arranged between two modular vehicles 6 via the lifting tower 5, which is suitable for high-level installation of large, heavy-duty fixed pulley blocks, and is firmly fixed and stable during transfer.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An auxiliary tooling for installing a large fixed pulley block on a crane, characterized in that: The auxiliary tooling is used in conjunction with a flatbed truck or modular vehicle. The auxiliary tooling includes a lifting frame, which comprises two parallel cylindrical frame groups with a vertically aligned central axis. A space is left between the two cylindrical frame groups for vertically placing a fixed pulley group. Each of the two cylindrical frame groups has a first track beam on its top surface to support the fixed pulley group. There are also two sets of support lugs, each corresponding to one of the two cylindrical frame groups. The two sets of support lugs are respectively located on both sides of the fixed pulley group. When the fixed pulley group is vertically positioned between the two cylindrical frame groups, the two sets of support lugs are supported by the first track beam on the top surface of the corresponding cylindrical frame group.

2. The auxiliary tooling for installing a large fixed pulley block for a crane according to claim 1, characterized in that: The cylindrical jig assembly includes several cylindrical jigs, each cylindrical jig being assembled from several coaxially arranged cylinders.

3. The auxiliary tooling for installing a large fixed pulley block for a crane according to claim 1, characterized in that: The supporting lugs and the fixed pulley assembly are integrally formed.

4. The auxiliary tooling for installing a large fixed pulley block for a crane according to claim 1, characterized in that: The lifting frame is arranged on a flatbed truck or modular vehicle via a steel plate. The lifting frame is arranged above the steel plate. Each of the two cylindrical frame groups is provided with a first diagonal brace on the side away from each other. The first diagonal brace is inclined from top to bottom in the direction away from the cylindrical frame group. The top of the first diagonal brace is connected to the corresponding cylindrical frame group, and the bottom is connected to the steel plate.

5. The auxiliary tooling for installing a large fixed pulley block for a crane according to claim 1, characterized in that: The lifting frame is arranged between two flatbed trucks or modular trucks via a lifting tower. The lifting tower includes two cylindrical tower groups that correspond one-to-one with the cylindrical frame groups. The two cylindrical tower groups are positioned below the corresponding cylindrical frame groups to support them. The two cylindrical tower groups are connected as a whole by reinforcing plates. The lifting tower has triangular supports on both sides, which are connected to the cylindrical tower groups on the same side. When the lifting tower is positioned between two flatbed trucks or modular trucks, the triangular supports on both sides of the lifting tower are supported by the flatbed trucks or modular trucks on the same side.

6. The auxiliary tooling for installing a large fixed pulley block for a crane according to claim 5, characterized in that: The triangular brace includes a horizontal strut and a second diagonal brace. One end of the horizontal strut is connected to the cylindrical tower assembly, and the central axis of the horizontal strut is perpendicular to the central axis of the cylindrical tower assembly. The second diagonal brace is located above the horizontal strut and tilts from top to bottom away from the cylindrical tower assembly. One end of the second diagonal brace is connected to the cylindrical tower assembly, and the other end is connected to the end of the horizontal strut away from the cylindrical tower assembly. The middle part of the second diagonal brace is connected to the middle part of the horizontal strut through a vertical strut, and the central axis of the vertical strut is parallel to the central axis of the cylindrical tower assembly.

7. The auxiliary tooling for installing a large fixed pulley block for a crane according to claim 5, characterized in that: The reinforcing sheet includes a top horizontal brace, a snowflake-shaped central frame, and a bottom horizontal brace. The top and bottom horizontal braces are respectively located on the upper and lower sides of the snowflake-shaped central frame and are connected to the snowflake-shaped central frame through a first connecting plate to form a whole.

8. The auxiliary tooling for installing a large fixed pulley block for a crane according to claim 5, characterized in that: The cylindrical frame assembly is connected to another cylindrical frame assembly on both sides by connecting rods to form a whole.

9. The auxiliary tooling for installing a large fixed pulley block for a crane according to claim 5, characterized in that: The first track beam of the cylindrical frame assembly is connected to the first track beam of another cylindrical frame assembly on both sides by a second track beam. The second track beam is located above the first track beam, and both sides of the second track beam are connected to the top surface of the first track beam on the same side.

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