Crane base structure capable of adjusting stress point

Abstract

The utility model relates to a crane base structure capable of adjusting a stress point, which comprises a crane support arm, the outer side of the crane support arm is fixedly connected with a mounting seat, and the inner side of the mounting seat is provided with a hydraulic cylinder; the output end of the hydraulic cylinder is fixedly connected with a fixing column, and the lower end of the fixing column is fixedly connected with a supporting plate. According to the crane base structure capable of adjusting the stress point, the fixed seat is arranged, and a rotating hole is matched with a rotating shaft, so that a connecting plate of the crane base structure can be turned over on the outer side of a supporting plate, an electric push rod is started and drives the connecting seat to move upwards or downwards, and under the matching of a hinge seat and a movable rod, when the connecting seat moves upwards, the connecting plate is turned over. When the connecting seat moves downwards, the movable rod pulls the connecting plate, the connecting plate is perpendicular to the supporting plate, when the connecting seat moves downwards, the movable rod pushes the connecting plate, and the connecting plate and the supporting plate are in a horizontal state, so that the supporting area of the supporting plate is enlarged, the pressure of a heavy object is dispersed, the pressure on the ground is reduced, and the stability of a stress point is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a crane base structure capable of adjusting a stress point. Background Art

[0002] A crane is a mechanical equipment used for lifting and moving heavy objects. It is usually used in construction sites, ports, warehouses and other places. The main function of a crane is to lift and move heavy objects. It can move and rotate horizontally and vertically to meet the needs of various lifting operations. The crane base is an important part of the crane. It bears the weight of the crane and transmits force. The crane base is usually composed of the following main components: Base bottom structure: The base bottom structure is the basic part of the crane base, usually made of concrete or steel structure, used to support the weight of the entire crane and transmit force; Support feet: The support feet are the support points on the base bottom structure, usually used to adjust the levelness and stability of the base; Support plate: The support plate is the supporting surface on the base bottom structure, used to bear the weight of the crane and transmit force; Connectors: Connectors are used to connect the main structure of the crane and the base bottom structure, usually including bolts, welding and other methods to ensure a firm connection between the crane and the base.

[0003] The support plate in the existing crane base structure cannot be adjusted in area, which may limit the applicability of the crane in different sites and working conditions. The non-adjustable support plate area may cause uneven distribution of ground bearing pressure. In certain cases with poor ground conditions, insufficient support plate area may cause excessive ground bearing pressure, which may cause damage or instability to the ground, thereby reducing the practicality of its base structure. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a crane base structure with adjustable stress points, which has the advantages of being able to adjust the area of ​​the support plate. When the area of ​​the support plate is enlarged, it can provide a larger supporting area, thereby dispersing the pressure of the heavy object, reducing the pressure on the ground, and improving the stability of the stress points. It solves the problem that the non-adjustable area of ​​the support plate may lead to uneven distribution of ground bearing pressure. In certain cases with poor ground conditions, insufficient area of ​​the support plate may lead to excessive ground bearing pressure, which may cause damage to or instability to the ground, thereby reducing the practicality of its base structure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crane base structure with adjustable force points, comprising a crane support arm, a mounting seat is fixedly connected to the outer side of the crane support arm, and a hydraulic cylinder is installed on the inner side of the mounting seat;

[0006] The output end of the hydraulic cylinder is fixedly connected to a fixed column, the lower end of the fixed column is fixedly connected to a support plate, the inner side of the fixed column is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to a connecting seat, the outer side of the support plate is movably connected to a connecting plate, and a movable rod is movably connected between the connecting plate and the connecting seat.

[0007] Furthermore, the upper end of the fixing column is fixedly connected to a mounting plate, and the other end of the mounting plate is fixedly connected to the hydraulic cylinder.

[0008] Furthermore, the fixing column is rectangular in shape, and a slideway is provided on the side wall of the fixing column. The number of the slideways is four and they are symmetrically distributed.

[0009] Furthermore, a fixing seat is fixedly connected to the outer side of the support plate, the fixing seat is "concave" shaped, and a rotation hole is opened on the side wall of the fixing seat.

[0010] Furthermore, the connection seat is located on the inner side of the fixing column, and the specification of the connection seat is matched with the specification of the inner side wall of the fixing column.

[0011] Furthermore, the specification of the connecting plate is compatible with the specification of the supporting plate, and a rotating shaft is fixedly connected to the outer side of the connecting plate.

[0012] Furthermore, the upper end of the connecting plate and the outer side of the connecting seat are fixedly connected with a hinge seat.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The crane base structure with adjustable stress points is provided with a fixed seat, and the connection plate can be turned over on the outer side of the support plate through the cooperation of the rotating hole and the rotating shaft. The electric push rod is started, and the electric push rod drives the connection seat to move upward or downward. Under the cooperation of the hinged seat and the movable rod, when the connection seat moves upward, the movable rod pulls the connection plate so that the connection plate and the support plate are in a vertical state. When the connection seat moves downward, the movable rod pushes the connection plate so that the connection plate and the support plate are in a horizontal state, thereby expanding the support area of ​​the support plate, thereby dispersing the pressure of the heavy object, reducing the pressure on the ground, and improving the stability of the stress point. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of the structural fixing column of the utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the structural fixing seat of the utility model.

[0018] In the figure: 1. Crane support arm; 2. Mounting seat; 3. Hydraulic cylinder; 4. Fixed column; 401. Mounting plate; 402. Slide; 5. Support plate; 501. Fixed seat; 502. Rotating hole; 6. Electric push rod; 7. Connecting seat; 8. Connecting plate; 801. Rotating shaft; 802. Articulated seat; 9. Movable rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 In this embodiment, a crane base structure with adjustable force points includes a crane support arm 1, a mounting seat 2 is fixedly connected to the outer side of the crane support arm 1, and a hydraulic cylinder 3 is installed on the inner side of the mounting seat 2;

[0021] It should be noted that the hydraulic cylinder 3 is a device that uses the hydraulic principle to generate linear motion. It is usually composed of a piston, a piston rod, a cylinder body and a seal. The working principle of the hydraulic cylinder 3 is to use the pressure of a liquid, usually hydraulic oil, in the cylinder body to generate force, thereby pushing the piston and the piston rod to move in a straight line.

[0022] The output end of the hydraulic cylinder 3 is fixedly connected with a fixed column 4, the upper end of the fixed column 4 is fixedly connected with a mounting plate 401, the fixed column 4 is located in the middle of the mounting plate 401, and the other end of the mounting plate 401 is fixedly connected to the hydraulic cylinder 3. The fixed column 4 is rectangular, and a slideway 402 is provided on the side wall of the fixed column 4. The number of the slideways 402 is four and they are symmetrically distributed.

[0023] The lower end of the fixed column 4 is fixedly connected with a support plate 5, which is rectangular and located in the middle of the fixed column 4. The outer side of the support plate 5 is fixedly connected with a fixing seat 501, which is "concave". There are four fixing seats 501, which are symmetrically distributed. The side walls of the fixing seats 501 are provided with rotation holes 502.

[0024] An electric push rod 6 is fixedly connected to the inner side of the fixed column 4. The electric push rod 6 is an electric actuator, usually composed of a motor, a transmission device and a push rod. Its working principle is to drive the transmission device through the motor to make the push rod move linearly, thereby realizing the function of pushing, pulling or lifting objects. The output end of the electric push rod 6 is fixedly connected to a connecting seat 7. The electric push rod 6 can drive the connecting seat 7 to move linearly. The connecting seat 7 is located on the inner side of the fixed column 4, and the specifications of the connecting seat 7 are compatible with the specifications of the inner wall of the fixed column 4.

[0025] The outer side of the support plate 5 is movably connected with a connecting plate 8, and the specifications of the connecting plate 8 are compatible with the specifications of the support plate 5. The outer side of the connecting plate 8 is fixedly connected with a rotating shaft 801. The number of the rotating shafts 801 is two and they are symmetrically distributed. The rotating shaft 801 rotates on the inner side of the rotating hole 502. The cooperation between the rotating shaft 801 and the rotating hole 502 allows the connecting plate 8 to be flipped. The upper end of the connecting plate 8 and the outer side of the connecting seat 7 are fixedly connected with a hinge seat 802. There are four hinge seats 802 on the outer side of the connecting seat 7. A movable rod 9 is movably connected between the connecting plate 8 and the connecting seat 7. The movable rod 9 is cylindrical. The number of the movable rods 9 is four, and the lengths of the four movable rods 9 are consistent. The specifications of the movable rod 9 are compatible with the specifications of the slide 402.

[0026] In this embodiment, through the cooperation between the fixed column 4 and the movable rod 9, when the connecting seat 7 moves upward, the movable rod 9 pulls the connecting plate 8 so that the connecting plate 8 and the support plate 5 are vertical. When the connecting seat 7 moves downward, the movable rod 9 pushes the connecting plate 8 so that the connecting plate 8 and the support plate 5 are horizontal, thereby expanding the supporting area of ​​the support plate 5, thereby dispersing the pressure of the heavy object, reducing the pressure on the ground, and improving the stability of the force point.

[0027] The working principle of the above embodiment is:

[0028] By setting up a fixed seat 501, through the cooperation of the rotating hole 502 and the rotating shaft 801, the connecting plate 8 can be flipped on the outside of the supporting plate 5, and the electric push rod 6 is started, and the electric push rod 6 drives the connecting seat 7 to move upward or downward. Under the cooperation of the hinged seat 802 and the movable rod 9, when the connecting seat 7 moves upward, the movable rod 9 pulls the connecting plate 8 so that the connecting plate 8 and the supporting plate 5 are vertical. When the connecting seat 7 moves downward, the movable rod 9 pushes the connecting plate 8 so that the connecting plate 8 and the supporting plate 5 are horizontal, thereby expanding the supporting area of ​​the supporting plate 5, thereby dispersing the pressure of the heavy object, reducing the pressure on the ground, and improving the stability of the force point.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crane base structure with adjustable force points, comprising a crane support arm (1), characterized in that: The outer side of the crane support arm (1) is fixedly connected to a mounting seat (2), and the inner side of the mounting seat (2) is installed with a hydraulic cylinder (3); The output end of the hydraulic cylinder (3) is fixedly connected to a fixed column (4), the lower end of the fixed column (4) is fixedly connected to a support plate (5), the inner side of the fixed column (4) is fixedly connected to an electric push rod (6), the output end of the electric push rod (6) is fixedly connected to a connecting seat (7), the outer side of the support plate (5) is movably connected to a connecting plate (8), and a movable rod (9) is movably connected between the connecting plate (8) and the connecting seat (7).

2. The crane base structure with adjustable force points according to claim 1, characterized in that: The upper end of the fixing column (4) is fixedly connected to a mounting plate (401), and the other end of the mounting plate (401) is fixedly connected to the hydraulic cylinder (3).

3. The crane base structure with adjustable stress points according to claim 1, characterized in that: The fixing column (4) is rectangular in shape, and a slideway (402) is provided on the side wall of the fixing column (4). The number of the slideways (402) is four and they are symmetrically distributed.

4. The crane base structure with adjustable stress points according to claim 1, characterized in that: A fixing seat (501) is fixedly connected to the outer side of the support plate (5); the fixing seat (501) is concave in shape; and a rotating hole (502) is provided on the side wall of the fixing seat (501).

5. The crane base structure with adjustable stress points according to claim 1, characterized in that: The connection seat (7) is located on the inner side of the fixing column (4), and the specifications of the connection seat (7) are compatible with the specifications of the inner side wall of the fixing column (4).

6. The crane base structure with adjustable stress points according to claim 1, characterized in that: The specifications of the connecting plate (8) are compatible with the specifications of the supporting plate (5), and a rotating shaft (801) is fixedly connected to the outer side of the connecting plate (8).

7. The crane base structure with adjustable stress points according to claim 1, characterized in that: The upper end of the connecting plate (8) and the outer side of the connecting seat (7) are both fixedly connected with a hinge seat (802).

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