CN220332812U - Split type large-scale track frame for installing lifting support - Google Patents

Abstract

The utility model discloses a split type large-scale crawler frame for installing a hoisting support, which comprises a middle rack, wherein the middle rack comprises an upper plate and a bottom plate; a supporting ring is arranged between the upper plate and the bottom plate; the middle rack is provided with a hoisting support; the number of the hoisting supports is 4, and the hoisting supports are symmetrically fixed on the upper surface of the upper plate by taking the center of the supporting ring as the center. According to the utility model, by adding the lifting support, the stable and balanced lifting performance is fully ensured, the actual situation that lifting is difficult to find balance in working procedures such as processing, assembling and the like is completely solved, meanwhile, the lifting and assembling operation efficiency is improved, and the safe production is fully ensured; the current situation of the inner walls and edges of mounting process holes of the lower and upper plates of the rack in the hanger damage is completely avoided, so that the damage part is prevented from being corroded prematurely.

Description

Split type large-scale track frame for installing lifting support

Technical Field

The utility model relates to the technical field of large engineering machinery assembly, in particular to a split type large track frame for installing a hoisting support.

Background

For the limitation of the width and the height of a supported transport vehicle of a large excavator, combining with the accompanying drawings 1 and 2, the crawler belt is designed into a split type, and comprises a left walking frame 1, a right walking frame 3 and a middle rack 2, wherein the middle rack 2 is supported by the left walking frame 1 and the right walking frame 3, and the middle rack 2 is used for supporting a rotary platform and parts above the rotary platform.

Because the middle rack 2 of the large excavator crawler frame has heavier weight, the hoisting holes are the front and rear process holes 11, and the front and rear process holes 11 are mainly used for assembling and installing connecting and fastening bolts between the slewing bearing and the slewing platform. The two process holes 11 are used as hoisting holes, and are used for hoisting in the process links of processing, assembly and the like, so that deflection instability is easy to occur, and the alignment and balance group pair installation between the middle rack 2 and the left walking rack 1 and the right walking rack 3 is very unfavorable; easily causes safe casualties; meanwhile, the lifting appliance is easy to damage the inner wall and the edge of the process hole, so that rust is caused; the efficiency of the whole hoisting and assembly operation is low. It is necessary to design a lifting support to solve the above technical problems.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims at solving the actual situations that the weight of a middle rack is heavier, the assembly and the processing are difficult to find and balance, the assembly and the hoisting are difficult to hoist, the inner wall and the edge of a process hole are easy to damage by a hoist and the like, and optimally designing a hoisting support so as to improve the balance stability of the hoisting link of the middle rack, ensure the safe production, improve the hoisting and the assembly operation efficiency and avoid damaging the inner wall and the edge of the process hole during hoisting.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the split type large crawler frame for installing the hoisting support comprises a middle rack, wherein the middle rack comprises an upper plate and a bottom plate; a supporting ring is arranged between the upper plate and the bottom plate; the middle rack is provided with a hoisting support; the number of the hoisting supports is 4, and the hoisting supports are symmetrically fixed on the upper surface of the upper plate by taking the center of the supporting ring as the center.

And chamfering is processed on the periphery of the contact surface of the lifting support and the upper plate.

The hoisting support adopts a thickened steel plate structure;

the outside is a circular arc smooth transition structure; the center is a lifting hole;

rounded corners of the two end faces of the lifting hole are smoothly transited;

and arc chamfering is carried out on the edges of the two sides of the lifting support.

The surface of the upper plate is also provided with a slewing bearing fixing seat.

And a plurality of vertical rib plates are arranged among the bottom plate, the supporting ring and the upper plate.

And the bottom plate and the upper plate are provided with process holes.

The walking device comprises a left walking frame, a right walking frame, a middle rack and a left walking frame, wherein the middle rack is arranged on the left walking frame and the right walking frame and is supported by the left walking frame and the right walking frame.

Compared with the prior art, the utility model has the following beneficial effects:

by adding the lifting support, the stable and balanced lifting performance is fully ensured, the actual situations that lifting and leveling are difficult in working procedures such as processing, assembly and the like are completely solved, meanwhile, the lifting and assembly operation efficiency is improved, and the safety production is fully ensured; the current situation of the inner walls and edges of mounting process holes of the lower and upper plates of the rack in the hanger damage is completely avoided, so that the damage part is prevented from being corroded prematurely.

Drawings

FIG. 1 is a schematic view of a split large track frame without a lifting support;

FIG. 2 is a schematic view of the structure of the intermediate rack without the hoist mount support;

FIG. 3 is a schematic diagram of a lifting support layout structure of a gantry in the present utility model;

FIG. 4 is a plan view of a lifting support layout of the gantry of the present utility model;

FIG. 5 is a schematic view of the structure of the lifting support of the present utility model;

in the figure: 1. a left walking frame; 2. a middle rack; 3. a right walking frame; 4. a gasket; 5. a bolt; 6. a support ring; 7. an upper plate; 8. a slewing bearing fixing seat; 9. vertical rib plates; 10. a bottom plate; 11. a process hole; 12. hoisting the support; 12a, a circular arc smooth transition structure; 12b, chamfering the circular arcs at the edges of the two sides; 12c, peripheral chamfering; 12d, rounding the two end faces.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, the split type large crawler frame for installing and lifting a support provided by the utility model comprises a left walking frame 1, a middle frame 2 and a right walking frame 3, wherein the middle frame 2 is supported by the left walking frame 1 and the right walking frame 3, and is fixedly connected with the left walking frame 1 and the right walking frame 3 through gaskets 4 and bolts 5.

Referring to fig. 2, the middle rack 2 includes an upper plate 7 and a bottom plate 10, a support ring 6 is disposed between the upper plate 7 and the bottom plate 10, and a slewing bearing fixing seat 8 is further disposed on the surface of the upper plate 7;

a plurality of vertical rib plates 9 are arranged among the bottom plate 10, the support ring 6 and the upper plate 7, so that the connection structural strength among the bottom plate 10, the support ring 6 and the upper plate 7 is reinforced and improved.

The bottom plate 10 and the upper plate 7 are provided with process holes 11, which are mainly convenient for assembling and installing connecting and fastening bolts between the slewing bearing and the slewing platform.

Aiming at the actual situations that the middle rack 2 of the large excavator crawler frame is heavy, is difficult to hoist and balance, is difficult to assemble and install, the inner wall and the edge of the process hole 11 are easy to damage by the hoist, the operation efficiency is low, and the like, the hoisting support is optimally designed to meet the stability of a hoisting procedure link, ensure safe production, and simultaneously protect the inner wall and the edge of the process hole 11.

Referring to fig. 3 and 4, the upper end of the middle rack 2 is provided with lifting supports 12, the lifting supports 12 are distributed on the upper end surface of the upper plate 7, 4 lifting supports 12 are distributed on a circle with the supporting ring 6 as a center of circle and the diameter of B, and are arranged in an angle a with the same symmetry line and are in central symmetry with the center of the supporting ring 6 as the center, so that the requirement of the whole balance performance of the middle rack is met;

the diameter B is larger than the diameter of the support ring 6;

chamfer angles are machined on the periphery of the contact surface of the lifting support 12 and the upper plate 7 so as to promote welding penetration between the lower part of the lifting support 12 and the upper surface of the upper plate 7, and the welding firmness of the lifting support 12 and the upper surface is enhanced so as to meet the integral lifting strength requirement of the middle rack.

Referring to fig. 5, the lifting support 12 adopts a thickened steel plate structure, and an arc smooth transition structure 12a is arranged outside the lifting support so as to meet the requirement of smooth transition of stress; the center is a hoisting hole, round corners 12d are rounded off at two end surfaces of the hoisting hole for smooth transition, and circular arc chamfers 12b are arranged at two side edges of the hoisting support 12 to protect hoisting cables from damaging the cables and causing safety accidents; and the peripheral chamfer 12c at the lower part of the lifting support 12 is used for lifting the welding penetration between the lower part of the lifting support 12 and the upper surface of the upper plate 7.

According to the patent, by adding the lifting support, the lifting stability and balance performance are fully ensured, the actual situation that lifting is difficult to achieve in the working procedures of processing, assembling and the like is completely solved, meanwhile, the lifting and assembling operation efficiency is improved, and the safety production is fully ensured; the current situation of the inner wall and the edge of the mounting process hole 11 of the lower plate and the upper plate of the rack in the damage of the lifting appliance is completely avoided, so that the damage part is prevented from being corroded prematurely.

All parts themselves which are not discussed in the present application and all parts connection modes in the present application belong to the known technology in the technical field. The preparation can be directly applied and is not repeated.

In the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. The split type large crawler frame for installing the hoisting support comprises a middle rack, wherein the middle rack comprises an upper plate and a bottom plate; a supporting ring is arranged between the upper plate and the bottom plate;

the middle rack is characterized in that a hoisting support is arranged;

the number of the hoisting supports is 4, and the hoisting supports are symmetrically fixed on the upper surface of the upper plate by taking the center of the supporting ring as the center.

2. The split large track frame for installing a lifting support according to claim 1, wherein a chamfer is machined on the periphery of the contact surface of the lifting support and the upper plate, so that welding is convenient and firm.

3. The split large track frame for mounting a lifting support according to claim 2, wherein the lifting support is of a thickened steel plate structure;

the outside is a circular arc smooth transition structure; the center is a lifting hole;

rounded corners of the two end faces of the lifting hole are smoothly transited;

and arc chamfering is carried out on the edges of the two sides of the lifting support.

4. A split large track frame for mounting a lifting support as claimed in claim 3 wherein the upper surface of the upper plate is further provided with a slewing bearing mounting seat.

5. The split large-scale crawler frame for installing and hoisting a supporting seat according to claim 4, wherein a plurality of vertical rib plates are arranged among the bottom plate, the supporting ring and the upper plate.

6. The split large track frame for installing and hoisting supports of claim 5, wherein the bottom plate and the upper plate are provided with process holes.

7. The split type large track frame for mounting a lifting support according to claim 6, further comprising a left walking frame and a right walking frame, wherein the middle frame is mounted on the left walking frame and the right walking frame, and the middle frame is supported by the left walking frame and the right walking frame.