Crawler crane

Abstract

The utility model discloses a crawler-type crane, which relates to the technical field of electromechanical engineering, and comprises a crawler-type driving assembly, a hoisting frame is arranged at the front part of the top end of the crawler-type driving assembly, a hoisting arm is hinged and mounted at the rear end of the top of the hoisting frame, a hydraulic rod is hinged and mounted between the hoisting arm and the hoisting frame, and the hydraulic rod is connected with the crawler-type driving assembly. A reinforcing plate is arranged on the rear portion of the top end of the crawler-type driving assembly below the rear portion of the hoisting frame, an arc-shaped groove is formed in the top end of the reinforcing plate in a penetrating mode, an extension frame is arranged at the rear end of the reinforcing plate, a connecting rod is arranged at the bottom end of the extension frame, and the bottom of the connecting rod penetrates through the arc-shaped groove. By arranging a series of structures, pulling force borne by the connecting position of the hoisting frame and the crawler-type driving assembly is shared, the damage risk of the connecting position of the hoisting frame and the crawler-type driving assembly is reduced, and the phenomenon that the crawler-type crane tilts over is avoided when the reinforcing base is not easy to additionally install in a special environment.

Description

Technical Field

[0001] This utility model relates to the field of electromechanical engineering technology, specifically to a crawler crane. Background Technology

[0002] A crawler crane is a type of lobe-rotating crane that uses tracks to move. Crawler cranes are characterized by their large track ground contact area, good maneuverability, strong adaptability, and ability to move with a load. Crawler cranes can perform various operations such as excavation, tamping, and pile driving, and are the main engineering machines for hoisting operations on construction sites.

[0003] When existing crawler cranes are lifting heavy objects, the connection between the lifting frame and the crawler drive assembly is subjected to the tension generated by the weight of the object. Over long-term use, the connection is prone to damage and is difficult to repair. Most crawler cranes need to install a reinforced base to increase their stability during lifting operations. However, in special environments, it may be inconvenient to install a reinforced base, which poses a risk of tipping over when lifting heavy objects. Utility Model Content

[0004] The purpose of this utility model is to provide a crawler crane to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crawler crane, including a crawler drive assembly, a lifting frame is provided at the front top of the crawler drive assembly, a lifting boom is hinged to the rear top of the lifting frame, a hydraulic rod is hinged between the lifting boom and the lifting frame, a reinforcing plate is provided at the rear top of the crawler drive assembly below the rear of the lifting frame, an arc-shaped groove is provided through the top of the reinforcing plate, an extension frame is provided at the rear end of the reinforcing plate, and the bottom of the extension frame... The end is provided with a connecting rod, and the bottom of the connecting rod passes through an arc-shaped groove. The outer surface of the connecting rod at the top and bottom of the reinforcing plate is provided with a positioning plate. The bottom of the connecting rod and the rear two sides of the top of the reinforcing plate are provided with support plates. The support plates are U-shaped components with top openings. An extension rod is hinged to the opening of the support plate. The top of the extension rod is detachably installed with a connecting plate. The bottom of the two connecting plates is provided with a mounting base. A counterweight box is detachably installed between the two mounting bases.

[0006] Preferably, two mounting tail plates are provided at the top of the reinforcing plate near the two support plates. The opposite ends of the counterweight box can be installed at the rear end of the mounting tail plates. When the crawler crane is not performing lifting operations, the connecting plate is placed inside the counterweight box, and then the counterweight box is installed at the rear end of the mounting tail plates, reducing the overall length of the crawler crane and facilitating transportation.

[0007] Preferably, one side of the extension rod and one side of the connecting plate are connected to a second fixing post. When the connecting plate is installed on the upper part of the extension rod, it is fixed by the second fixing post to ensure the stability of the installation.

[0008] Preferably, the counterweight box and the mounting base are connected to a first fixing post on one side. When the counterweight box is installed at the position of the mounting base, it is fixed by the first fixing post so that the counterweight box will not fall off.

[0009] Preferably, the front sides of the reinforcing plate are connected to the tracked drive assembly by a reinforcing steel frame. The reinforcing steel frame improves the strength of the connection between the reinforcing plate and the tracked drive assembly, making the crane more stable as a whole.

[0010] Preferably, a driver's cab is provided on one side of the top of the crane frame, where an operator can sit to facilitate the operation of the crane.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This crawler crane connects to the reinforcing plate via an extension frame and connecting rod at the rear end of the lifting frame. When lifting heavy objects, this reduces the tension at the connection point between the lifting frame and the crawler drive assembly, thus lowering the risk of damage to that connection point.

[0013] 2. This crawler crane features a counterweight box that can be extended at the rear of the reinforcing plate, increasing the weight at the rear end when lifting heavy objects. This prevents the crawler crane from tipping over in special environments where it is difficult to install a reinforcing base. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the counterweight box in the installation state of this utility model;

[0016] Figure 3 This is a schematic diagram of the disassembled state of the reinforcing plate structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the lifting frame structure of this utility model.

[0018] In the diagram: 1. Tracked drive assembly; 2. Lifting frame; 3. Hydraulic rod; 4. Lifting boom; 5. Driver's cab; 6. Reinforcing plate; 7. Tail plate; 8. Counterweight box; 9. Reinforcing steel frame; 10. Extension rod; 11. Support plate; 12. Connecting plate; 13. First fixed column; 14. Second fixed column; 15. Arc groove; 16. Mounting base frame; 17. Connecting rod; 18. Positioning plate; 19. Extension frame. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] like Figures 1 to 4As shown, the crawler crane in this embodiment includes a crawler drive assembly 1. A lifting frame 2 is provided at the front top of the crawler drive assembly 1. A lifting boom 4 is hinged to the rear top of the lifting frame 2. A hydraulic rod 3 is hinged between the lifting boom 4 and the lifting frame 2. The lifting boom 4 can be retracted, and a lifting mechanism is provided at the front end of the lifting boom 4. The hydraulic rod 3 is used to adjust the tilt angle of the lifting boom 4 so that the crane can perform lifting operations. The bottom end of the lifting frame 2 is connected to the crawler drive assembly 1 through a rotating assembly. During lifting operations, the lifting frame 2 can rotate to move the heavy object. A reinforcing plate 6 is provided at the rear of the top of the crawler drive assembly 1 below the rear of the lifting frame 2. An arc-shaped groove 15 is provided through the top of the reinforcing plate 6. An extension frame 19 is provided at the rear end of the reinforcing plate 6. A connecting rod 17 is provided at the bottom end of the extension frame 19, and the bottom of the connecting rod 17 passes through the arc-shaped groove 15. The top and bottom ends of the reinforcing plate 6 are connected by the connecting rod 19. Positioning plates 18 are provided on the outer surface of the 7. The lifting frame 2 is connected to the reinforcing plate 6 through the extension frame 19 and the connecting rod 17. When the lifting frame 2 is hoisting heavy objects, the reinforcing plate 6 can distribute the tension and reduce the tension at the connection position between the lifting frame 2 and the crawler drive assembly 1. Support plates 11 are provided on both sides of the bottom end of the reinforcing plate 6 and the top end of the connecting rod 17. The support plate 11 is a U-shaped component with an open top. An extension rod 10 is hinged at the opening of the support plate 11. A connecting plate 12 is detachably installed on the top of the extension rod 10. A mounting base 16 is installed at the bottom end of both connecting plates 12. A counterweight box 8 is detachably installed between the two mounting bases 16. Heavy objects can be placed inside the counterweight box 8. The counterweight box 8 is installed away from the lifting frame 2 through the extension rod 10 and the connecting plate 12 to improve the stability of the crawler drive assembly 1 during hoisting and prevent the crane from tipping over when hoisting heavy objects.

[0022] Specifically, two mounting tail plates 7 are provided at the top of the reinforcing plate 6 near the two support plates 11. The opposite ends of the counterweight box 8 can be installed at the rear end of the mounting tail plate 7. When the crawler crane is not performing lifting operations, the connecting plate 12 is placed inside the counterweight box 8, and then the counterweight box 8 is installed at the rear end of the mounting tail plate 7, reducing the overall length of the crawler crane and facilitating transportation.

[0023] Furthermore, a second fixing post 14 is inserted into one side of the extension rod 10 and one side of the connecting plate 12. When the connecting plate 12 is installed on the upper part of the extension rod 10, it is fixed by the second fixing post 13 to ensure the stability of the installation.

[0024] Furthermore, the counterweight box 8 and the mounting base 16 are connected to a first fixing post 13 on one side. When the counterweight box 8 is installed at the position of the mounting base 16, it is fixed by the first fixing post 14 so that the counterweight box 8 will not fall off.

[0025] Furthermore, the front sides of the reinforcing plate 6 are connected to the tracked drive assembly 1 by a reinforcing steel frame 9. The reinforcing steel frame 9 improves the strength of the connection between the reinforcing plate 6 and the tracked drive assembly 1, making the crane more stable as a whole.

[0026] Furthermore, a driver's cab 5 is provided on one side of the top of the crane frame 2, where operators can sit to facilitate the operation of the crane.

[0027] The method of use in this embodiment is as follows: When using a crawler crane, the rear end of the reinforcing plate 6 is extended from the inside of the support plate 11 by the extension rod 10. Then, the connecting plate 12 is installed on the top of the support plate 11. Finally, the counterweight box 8 is installed at a position away from the crane frame 2. During hoisting, heavy objects can be placed inside the counterweight box 8 to increase the weight and improve the stability of the crawler drive assembly 1 during hoisting, thus preventing the crane from tipping over when hoisting heavy objects. When hoisting heavy objects through the hoisting equipment at the front end of the crane arm 4, the crane frame 2 is connected to the reinforcing plate 6 through the extension frame 19 and the connecting rod 17. The reinforcing plate 6 can distribute the tension and reduce the tension at the connection position between the crane frame 2 and the crawler drive assembly 1.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A crawler crane, comprising a crawler drive assembly (1), characterized in that: A lifting frame (2) is provided at the front top of the tracked drive assembly (1). A lifting arm (4) is hinged to the rear top of the lifting frame (2). A hydraulic rod (3) is hinged between the lifting arm (4) and the lifting frame (2). A reinforcing plate (6) is provided at the rear top of the tracked drive assembly (1) below the rear of the lifting frame (2). An arc-shaped groove (15) is provided through the top of the reinforcing plate (6). An extension frame (19) is provided at the rear end of the reinforcing plate (6). A connecting rod (17) is provided at the bottom end of the extension frame (19), and the bottom of the connecting rod (17) is through the arc-shaped groove (15). The top and bottom connecting rods (17) of the reinforcing plate (6) are provided with positioning plates (18). Support plates (11) are provided at the bottom of the connecting rods (17) and the rear sides of the top of the reinforcing plate (6). The support plates (11) are U-shaped components with top openings. Extension rods (10) are hinged at the opening of the support plates (11). Connecting plates (12) are detachably installed on the top of the extension rods (10). Mounting bases (16) are installed at the bottom of the two connecting plates (12). A counterweight box (8) is detachably installed between the two mounting bases (16).

2. The crawler crane according to claim 1, characterized in that: Two mounting tail plates (7) are provided at the top of the reinforcing plate (6) near the two support plates (11), and the opposite end of the counterweight box (8) can be installed at the rear end of the mounting tail plates (7).

3. The crawler crane according to claim 1, characterized in that: One side of the extension rod (10) and one side of the connecting plate (12) are connected to a second fixing post (14).

4. The crawler crane according to claim 1, characterized in that: The first fixing column (13) is inserted into one side of the counterweight box (8) and the mounting base (16).

5. The crawler crane according to claim 1, characterized in that: The front sides of the reinforcing plate (6) are connected to the tracked drive assembly (1) by a reinforcing steel frame (9).

6. The crawler crane according to claim 1, characterized in that: A driver's cab (5) is provided on one side of the top of the crane frame (2).

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