Angle-adjustable hinging structure for left and right frames of engineering machinery
By introducing motor-driven threaded rods and rotating rods into the articulated structure of engineering machinery, combined with casters and fixed piles, the problems of low adjustment accuracy and insufficient stability in existing technologies are solved, achieving high-precision adjustment and stable support, and improving the flexibility and safety of engineering machinery.
Patent Information
- Application Number
- CN202520442258.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-03-13
AI Technical Summary
The existing articulated structures of engineering machinery have low adjustment precision, are inconvenient to operate, and have a low degree of automation, making them difficult to adapt to complex working conditions.
A multi-degree-of-freedom adjustment device combining a motor-driven threaded rod and a rotating rod, along with casters and fixed posts, is used to achieve multi-degree-of-freedom adjustment and stable support.
It achieves high-precision angle adjustment, improves the flexibility and stability of engineering machinery, adapts to complex working conditions, and prevents machinery from tipping over and shaking.
Smart Images

Figure CN223648997U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of engineering machinery technology, specifically relating to an adjustable-angle hinge structure for the left and right frames of engineering machinery. Background Technology
[0002] Construction machinery refers to mechanical equipment used in engineering fields such as earthwork construction, road construction, bridge erection, and building installation. It mainly includes excavators, loaders, bulldozers, earthmoving machinery, and hoisting machinery. These machines are characterized by high efficiency, stability, and durability, and are indispensable tools in modern engineering construction. They play an important role in improving project quality and efficiency and reducing labor intensity. With the vigorous promotion of infrastructure construction in my country, the construction machinery industry has developed rapidly, with the market size continuously expanding and product technology constantly innovating.
[0003] In recent years, with the continuous development of engineering machinery technology, adjustable-angle articulated structures have gradually become a research hotspot. In the existing technology, some articulated structures achieve angle adjustment through hydraulic cylinders or manual adjustment devices, but these methods have problems such as low adjustment accuracy, inconvenient operation, and low degree of automation. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an adjustable angle hinge structure for the left and right frames of engineering machinery, so as to solve the problems mentioned in the background art. In recent years, with the continuous development of engineering machinery technology, adjustable angle hinge structures have gradually become a research hotspot. In the existing technology, some hinge structures achieve angle adjustment through hydraulic cylinders or manual adjustment devices, but these methods have problems such as low adjustment accuracy, inconvenient operation, and low degree of automation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-angle hinged structure for the left and right frames of engineering machinery, comprising a base, a first motor fixedly connected to one side of the bottom of the base, a rotating plate fixedly connected to the output end of the first motor, a support frame fixedly connected to one side of the top of the rotating plate, grooves symmetrically arranged on one side of the support frame, a second motor fixedly connected to one side of the top of the support frame, a first threaded rod fixedly connected to the output end of the second motor, a moving block threadedly connected to the outer side of the first threaded rod, a rotating frame symmetrically fixedly connected to one side of the moving block, a third motor fixedly connected to one side of the top of the rotating frame, a rotating rod fixedly connected to the output end of the third motor, and a support frame fixedly connected to the outer side of the rotating rod.
[0006] Preferably, omnidirectional wheels are fixedly connected to all four corners of one side of the base.
[0007] Preferably, the base is symmetrically fixedly connected to fixing posts on both sides.
[0008] Preferably, a first sliding rod is fixedly connected between the two sides inside one of the grooves, and the other end of the moving block is slidably connected to the outside of the first sliding rod.
[0009] Preferably, the rotating plate is rotatably connected to one side of the top of the base.
[0010] Preferably, the first threaded rod is rotatably connected between the two sides inside one of the grooves.
[0011] Preferably, the rotating rod is rotatably connected between the two sides inside the rotating frame.
[0012] Preferably, the movable block is U-shaped.
[0013] Compared with the prior art, this utility model provides an adjustable-angle hinged structure for the left and right frames of engineering machinery, which has the following advantages:
[0014] 1. This utility model achieves high-precision adjustment of the left and right frame angles by setting a moving block and a second motor driving the first threaded rod. The third motor drives the support frame to rotate vertically through a rotating rod. This multi-degree-of-freedom adjustment mechanism enables the engineering machinery to adapt to various complex working conditions, significantly improving the flexibility and adaptability of operation.
[0015] 2. By setting universal wheels and fixed piles, this utility model significantly improves the stability and safety of the articulated structure. The design of the fixed piles provides additional support during operation, preventing the machinery from overturning under heavy load conditions and effectively preventing the machinery from shaking or displacing during operation.
[0016] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0018] Figure 1 This is a front view of the adjustable-angle hinged structure of the left and right frames of engineering machinery proposed in this utility model.
[0019] Figure 2 This is a side view of the adjustable-angle hinged structure of the left and right frames of engineering machinery proposed in this utility model.
[0020] Figure 3This is a schematic diagram of the adjustable-angle hinged support frame for the left and right frames of engineering machinery proposed in this utility model.
[0021] Figure 4 This is a schematic diagram of the adjustable-angle hinged support frame for the left and right frames of engineering machinery proposed in this utility model.
[0022] In the diagram: 1. Base; 2. First motor; 3. Rotating plate; 4. Support frame; 5. Groove; 6. Second motor; 7. First threaded rod; 8. Moving block; 9. Rotating frame; 10. Third motor; 11. Rotating rod; 12. Support frame; 13. Caster wheel; 14. Fixed post; 15. First sliding rod. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-4 This utility model provides a technical solution: an adjustable-angle hinged structure for the left and right frames of engineering machinery, including a base 1, a first motor 2 fixedly connected to one side of the bottom of the base 1, a rotating plate 3 fixedly connected to the output end of the first motor 2, a support frame 4 fixedly connected to one side of the top of the rotating plate 3, grooves 5 symmetrically arranged on one side of the support frame 4, a second motor 6 fixedly connected to one side of the top of the support frame 4, a first threaded rod 7 fixedly connected to the output end of the second motor 6, a moving block 8 threadedly connected to the outer side of the first threaded rod 7, a rotating frame 9 symmetrically fixedly connected to one side of the moving block 8, and a third motor 10 fixedly connected to one side of the top of the rotating frame 9. A rotating rod 11 is fixedly connected to the output end of the machine 10, and a support frame 12 is fixedly connected to the outside of the rotating rod 11. Starting the first motor 2 can drive the rotating plate 3 to rotate, which in turn drives the support frame 4 to rotate and adjust the direction. Starting the second motor 6 can drive the first threaded rod 7 to rotate, which can drive the moving block 8 to move and adjust the height of the rotating frame 9. Starting the third motor 10 can drive the rotating rod 11 to rotate, which in turn drives the support frame 12 to rotate vertically. This multi-degree-of-freedom adjustment mechanism enables the engineering machinery to adapt to various complex working conditions, significantly improving the flexibility and adaptability of operation.
[0025] In this utility model, preferably, universal wheels 13 are fixedly connected to the four corners of one side of the bottom of the base 1 to facilitate movement.
[0026] In this utility model, preferably, the base 1 is symmetrically fixedly connected with fixed piles 14 on both sides. The design of the fixed piles 14 provides additional support during operation, preventing the machinery from overturning under heavy load conditions, and effectively preventing the machinery from shaking or displacing during operation.
[0027] In this utility model, preferably, a first sliding rod 15 is fixedly connected between the two sides inside a groove 5, and the other end of the moving block 8 is slidably connected to the outside of the first sliding rod 15. The first sliding rod 15 serves to limit the movement of the moving block 8.
[0028] In this utility model, preferably, the rotating plate 3 is rotatably connected to one side of the top of the base 1.
[0029] In this invention, preferably, the first threaded rod 7 is rotatably connected between the two sides inside a groove 5.
[0030] In this utility model, preferably, the rotating rod 11 is rotatably connected between the two sides inside the rotating frame 9.
[0031] In this utility model, preferably, the movable block 8 is concave in shape.
[0032] The working principle and usage process of this utility model are as follows: When in use, starting the first motor 2 can drive the rotating plate 3 to rotate, which in turn drives the support frame 4 to rotate and adjust the direction. Starting the second motor 6 can drive the first threaded rod 7 to rotate, which can drive the moving block 8 to move and adjust the height of the rotating frame 9. Starting the third motor 10 can drive the rotating rod 11 to rotate, which can drive the support frame 12 to rotate vertically. This multi-degree-of-freedom adjustment mechanism enables the engineering machinery to adapt to various complex working conditions, significantly improving the flexibility and adaptability of operation. The design of the fixed pile 14 provides additional support force during operation, preventing the machinery from overturning under heavy load conditions and effectively preventing the machinery from shaking or displacing during operation.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An adjustable-angle hinged structure for the left and right frames of engineering machinery, comprising a base (1), characterized in that: A first motor (2) is fixedly connected to one side of the bottom of the base (1). A rotating plate (3) is fixedly connected to the output end of the first motor (2). A support frame (4) is fixedly connected to one side of the top of the rotating plate (3). A groove (5) is symmetrically arranged on one side of the support frame (4). A second motor (6) is fixedly connected to one side of the top of the support frame (4). A first threaded rod (7) is fixedly connected to the output end of the second motor (6). A moving block (8) is threadedly connected to the outside of the first threaded rod (7). A rotating frame (9) is symmetrically fixedly connected to one side of the moving block (8). A third motor (10) is fixedly connected to one side of the top of the rotating frame (9). A rotating rod (11) is fixedly connected to the output end of the third motor (10). A support frame (12) is fixedly connected to the outside of the rotating rod (11).
2. The adjustable-angle hinged structure for the left and right frames of engineering machinery according to claim 1, characterized in that: The base (1) is fixedly connected to four corners on one side of the bottom with casters (13).
3. The adjustable-angle hinged structure for the left and right frames of engineering machinery according to claim 1, characterized in that: The base (1) is symmetrically fixedly connected to two fixed piles (14) on both sides.
4. The adjustable-angle hinged structure for the left and right frames of engineering machinery according to claim 1, characterized in that: A first sliding rod (15) is fixedly connected between the two sides inside the groove (5), and the other end of the moving block (8) is slidably connected to the outside of the first sliding rod (15).
5. The adjustable-angle hinged structure for the left and right frames of engineering machinery according to claim 1, characterized in that: The rotating plate (3) is rotatably connected to one side of the top of the base (1).
6. The adjustable-angle hinged structure for the left and right frames of engineering machinery according to claim 1, characterized in that: The first threaded rod (7) is rotatably connected between the two sides inside the groove (5).
7. The adjustable-angle hinged structure for the left and right frames of engineering machinery according to claim 1, characterized in that: The rotating rod (11) is rotatably connected between the two sides inside the rotating frame (9).
8. The adjustable-angle hinged structure for the left and right frames of engineering machinery according to claim 1, characterized in that: The movable block (8) is U-shaped.