Supporting chassis structure for crane

Abstract

The utility model discloses a supporting chassis structure for a crane, which comprises a chassis main body and four supporting structures arranged on the chassis main body, and each supporting structure comprises an annular supporting seat, a telescopic arm, a hydraulic supporting leg and a locking screw rod; an adjusting sliding groove with the T-shaped section is formed in the outer ring face of the annular supporting base. An adjusting sliding block is arranged in the adjusting sliding groove, and one end of the telescopic arm is fixed to the adjusting sliding block through a plurality of bolts. The hydraulic supporting legs are arranged at the ends, away from the chassis body, of the telescopic arms. The locking screw is arranged on the adjusting sliding block, and the adjusting sliding block moves in the adjusting sliding groove and is positioned through the locking screw. According to the utility model, the structural arrangement is reasonable, any position of the supporting structure can be adjusted as required, the use requirements of different conditions can be met, the telescopic adjustment can be realized by arranging the telescopic arm, the height adjustment can be realized by the hydraulic supporting leg, the application range can be widened, the use stability and reliability can be improved, the applicability is strong, and the practicability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of crane supporting structures, and particularly relates to a supporting chassis structure for a crane. Background Art

[0002] Cranes are usually used to vertically lift or horizontally transport heavy objects within a certain range, and are mainly divided into truck cranes or bridge cranes. In the prior art, in order to improve the stability of a bridge crane during suspension, a supporting structure composed of support seats and hydraulic outriggers is usually arranged on the outer side of the chassis of the lifting machinery. The supporting range of the crane is expanded through the supporting structure, and the stability of the crane is increased. Although it can meet the use requirements in general situations, in the actual application process, the position of the support points cannot be adjusted. When the working range of the crane is small, there is a situation where individual hydraulic outriggers are suspended and cannot provide effective support. When the working range is large, support can only be carried out within a limited range, which is not conducive to increasing the stability of the crane. Therefore, its applicability and practicality are limited. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a supporting chassis structure for a crane with reasonable structural settings and which is conducive to adjustment.

[0004] The technical solution for achieving the purpose of the utility model is a supporting chassis structure for a crane, including a chassis main body and four supporting structures arranged on the chassis main body. The supporting structure includes an annular support seat, a telescopic arm, a hydraulic support foot, and a locking screw.

[0005] The annular support seat is fixed on the top surface of the chassis main body by bolts or welding.

[0006] An adjustment chute with a T-shaped cross-section is arranged on the outer ring surface of the annular support seat.

[0007] An adjustment slider is arranged in the adjustment chute, and one end of the telescopic arm is fixed on the adjustment slider by a plurality of bolts.

[0008] The hydraulic support foot is arranged at one end of the telescopic arm far from the chassis main body.

[0009] The locking screw is arranged on the adjustment slider, and the adjustment slider moves in the adjustment chute and is positioned by the locking screw.

[0010] Further preferably: The telescopic arm includes a hollow first arm rod, a second arm rod inserted into the first arm rod, and an adjustment hydraulic cylinder arranged in the first arm rod and connected to the second arm rod.

[0011] The end of the first arm rod is fixed on the adjusting slider, and the hydraulic support foot is fixed on one end of the far side of the second arm rod and the first arm rod.

[0012] Further preferably: Reinforcing ribs are welded between the annular support base and the top surface of the chassis main body.

[0013] Further preferably: The hydraulic support foot includes an adjusting seat, a control hydraulic cylinder, a push plate and a support foot body;

[0014] The adjusting seat is fixed on the second arm rod, the top of the support foot body is telescopically arranged in the adjusting seat, the control hydraulic cylinder is fixed on the adjusting seat, the push plate is fixed on the side of the support foot body, and the piston rod of the control hydraulic cylinder is fixed on the push plate.

[0015] Further preferably: The annular support base is a metal structure, and the diameter of the annular support base is smaller than the length and width of the chassis main body.

[0016] The utility model has positive effects: The structure of the utility model is reasonably arranged. By setting the annular support base and cooperating with the adjusting slider, any position of its support structure can be adjusted as needed to meet the usage requirements in different situations. At the same time, through the telescopic arm, telescopic adjustment can be achieved, and through the hydraulic support foot, height adjustment can be achieved. It can not only improve its application range, but also improve its use stability and reliability, with strong applicability and good practicability. Brief Description of the Drawings

[0017] In order to make the content of the utility model easier to be clearly understood, the following further details the utility model according to specific embodiments in conjunction with the drawings, where:

[0018] Figure 1 is the structural schematic diagram of the utility model;

[0019] Figure 2 is the specific structural schematic diagram of the annular support base in the utility model;

[0020] Figure 3 is the specific structural schematic diagram of the hydraulic support foot in the utility model.

[0021] Reference numerals: chassis main body 1, support structure 2, annular support base 21, telescopic arm 22, first arm rod 221, second arm rod 222, adjusting hydraulic cylinder 223, hydraulic support foot 23, adjusting seat 231, control hydraulic cylinder 232, push plate 233, support foot body 234, locking screw 24, T-shaped adjusting chute 3, adjusting slider 4, reinforcing rib 5. Detailed Description of the Specific Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment

[0024] See Figures 1 to 3 As shown, a support chassis structure for a crane includes a chassis main body 1 and four support structures 2 provided on the chassis main body. In this embodiment, the chassis main body is a conventional structure of the prior art and is only simply applied, so it is not described in detail.

[0025] In this embodiment, the support structure includes an annular support base 21, a telescopic arm 22, a hydraulic support foot 23, and a locking screw 24. During installation, the annular support base is fixed to the top surface of the chassis main body by bolts or welding. An adjustment chute 3 with a T-shaped cross-section is provided on the outer ring surface of the annular support base. And an adjustment slider 4 is provided in the adjustment chute. One end of the telescopic arm is fixed to the adjustment slider by a plurality of bolts. The hydraulic support foot is provided at the end of the telescopic arm away from the chassis main body. In actual application, the locking screw is provided on the adjustment slider, and the adjustment slider moves in the adjustment chute and is positioned by the locking screw. Through the above structure, the position and angle of the support structure can be adjusted as needed to meet the usage requirements in different situations. At the same time, the annular support base is a metal structure, and the diameter of the annular support base is smaller than the length and width of the chassis main body. And, in order to ensure its overall strength, a reinforcing rib 5 is welded between the annular support base and the top surface of the chassis main body. The shape of the adjustment slider matches the shape of the adjustment chute. In order to ensure the support strength, the adjustment slider is also a metal structure, specifically a steel structure.

[0026] In this embodiment, the telescopic arm includes a hollow first arm rod 221, a second arm rod 222 inserted into the first arm rod, and an adjustment hydraulic cylinder 223 provided in the first arm rod and connected to the second arm rod. In this embodiment, the size of the second arm rod matches the size of the inner cavity of the first arm rod, and the adjustment hydraulic cylinder is a conventional structure of the prior art and is only simply applied. Its main function is to adjust the telescopic movement of the first arm rod in the second arm rod. And during installation, the end of the first arm rod is fixed to the adjustment slider, and the hydraulic support foot is fixed to the end of the second arm rod away from the first arm rod.

[0027] Meanwhile, during the actual application process, the hydraulic support foot includes an adjustment seat 231, a control hydraulic cylinder 232, a push plate 233, and a support foot body 234. During installation, the adjustment seat is fixed on the second arm rod, the top of the support foot body is telescopically arranged in the adjustment seat, the control hydraulic cylinder is fixed on the adjustment seat, the push plate is fixed on the side of the support foot body, and the piston rod of the control hydraulic cylinder is fixed on the push plate. The support foot body can drive the push plate to move through the telescopic movement of the control hydraulic cylinder, thereby realizing the position adjustment of the support foot body in the adjustment seat. The control hydraulic cylinder is a conventional structure of the prior art and is only simply applied, so it is not described in detail.

[0028] The utility model has positive effects: The structure of the utility model is reasonably arranged. By setting a circular support seat in cooperation with an adjustment slider, any position of its support structure can be adjusted as needed to meet the usage requirements in different situations. At the same time, through the setting of a telescopic arm, telescopic adjustment can be realized, and through the hydraulic support foot, height adjustment can be realized. It can not only improve its scope of application, but also improve its use stability and reliability, with strong applicability and good practicability.

[0029] The standard parts used in this embodiment can be directly purchased from the market. For the non-standard structural components described in the specification, they can also be directly processed without any doubt according to the existing technical common sense. At the same time, the connection methods of each component adopt the mature conventional means in the prior art, and the machines, parts, and equipment all adopt the conventional models in the prior art, so no specific description will be made here.

[0030] Obviously, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. And these obvious changes or variations derived from the essential spirit of the present utility model still fall within the protection scope of the present utility model.

Claims

1. A support chassis structure for a crane, comprising a chassis main body and four support structures arranged on the chassis main body, characterized in that: The support structure includes an annular support base, a telescopic arm, a hydraulic support foot, and a locking screw; The annular support base is fixed to the top surface of the chassis main body by bolts or welding; An adjustment sliding groove with a T-shaped cross section is provided on the outer ring surface of the annular support base; An adjustment slider is provided in the adjustment sliding groove, and one end of the telescopic arm is fixed to the adjustment slider by a plurality of bolts; The hydraulic support foot is provided at one end of the telescopic arm away from the chassis main body; The locking screw is provided on the adjustment slider, and the adjustment slider moves in the adjustment sliding groove and is positioned by the locking screw.

2. The support chassis structure for a crane according to claim 1, wherein: The telescopic arm includes a hollow first arm rod, a second arm rod inserted into the first arm rod, and an adjustment hydraulic cylinder provided in the first arm rod and connected to the second arm rod; The end of the first arm rod is fixed to the adjustment slider, and the hydraulic support foot is fixed to one end of the second arm rod far from the first arm rod.

3. The support chassis structure for a crane according to claim 2, wherein: Reinforcing ribs are welded between the annular support base and the top surface of the chassis main body.

4. The support chassis structure for a crane according to claim 3, characterized in that: The hydraulic support foot includes an adjustment seat, a control hydraulic cylinder, a push plate, and a support foot body; The adjustment seat is fixed to the second arm rod, the top of the support foot body is telescopically provided in the adjustment seat, the control hydraulic cylinder is fixed to the adjustment seat, the push plate is fixed to the side surface of the support foot body, and the piston rod of the control hydraulic cylinder is fixed to the push plate.

5. A support chassis structure for a crane according to claim 1, characterized in that: The annular support base is a metal structure, and the diameter of the annular support base is smaller than the length and width of the chassis main body.

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