Novel excavator lower frame with high joint stability

Abstract

The utility model provides a novel excavator lower frame with high joint stability, and belongs to the technical field of excavator lower frames. Comprising a clamping plate, a supporting rod fixedly installed on the surface of the clamping plate, a fixing frame fixedly connected to the side surface of the supporting rod, an air cylinder installed in the center of the fixing frame in a matched mode, an adjusting assembly fixedly installed at the output end of the air cylinder, an auxiliary assembly rotationally installed at the end of the adjusting assembly and a clamping rod used in cooperation with the auxiliary assembly. And the treading assembly is rotationally mounted on the side surface of the clamping rod. The adjusting assembly driven by the air cylinder is matched with a single-head bolt structure, so that the tightness of a connecting part is accurately adjusted, and stable connection under different working conditions is ensured; the damping component effectively buffers operation impact through the unique design of the air cavity and the vent hole, and vibration transmission is greatly reduced; the operation comfort and the man-machine interaction experience are improved through the adjustable treading assembly; and through the synergistic effect of the auxiliary assemblies and the clamping rods, the deformation resistance of the whole structure is enhanced.

Description

Technical Field

[0001] This utility model belongs to the technical field of excavator underframes, specifically relating to a new type of excavator underframe with strong connection stability. Background Technology

[0002] The new excavator underframe with strong connection stability is an engineering machinery chassis component with an innovative structure. It is mainly used to improve the overall stability and durability of the excavator during operation. This device solves the problems of traditional underframes in terms of stability, impact resistance and operating comfort by combining mechanical linkage and pneumatic buffer. It is particularly suitable for use in harsh working conditions and can significantly improve the working efficiency and service life of the excavator.

[0003] Traditional underframes have simple structures and insufficient rigidity at the connection points, making them prone to loosening and deformation under heavy loads. The lack of shock absorption and buffering functions causes impact loads to be directly transmitted to the main frame, affecting the overall structural lifespan. The adjustment mechanism is poorly designed, unable to flexibly adjust the position and tightness of the connecting parts according to working conditions. The lack of an effective damping and buffering system results in poor stability of the equipment when operating in complex terrain. Therefore, a new type of excavator underframe with strong connection stability is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a new type of excavator underframe with strong connection stability, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A novel excavator underframe with strong connection stability includes a clamping plate, a support rod fixedly mounted on the surface of the clamping plate, a fixing frame fixedly connected to the side surface of the support rod, a cylinder adapted to be mounted in the center of the fixing frame, an adjustment component fixedly mounted on the output end of the cylinder, an auxiliary component rotatably mounted on the end of the adjustment component, a clamping rod used in conjunction with the auxiliary component, and a foot pedal component rotatably mounted on the side surface of the clamping rod.

[0007] As a preferred embodiment of this utility model, the adjustment assembly includes a fixed sleeve, a single-headed bolt rotatably installed in the inner cavity of the fixed sleeve, and a limiting plate fixedly connected to the outer surface of the fixed sleeve.

[0008] As a preferred embodiment of the present invention, the auxiliary component includes a fixing plate and a pull rod rotatably mounted on the side surface of the fixing plate.

[0009] As a preferred embodiment of the present invention, the auxiliary component further includes a damping component that contacts the side surface of the pull rod, and a telescopic cylinder that is fixedly connected to the outer surface of the damping component.

[0010] As a preferred embodiment of the present invention, the damping component includes a damping tube, an air cavity formed in the center of the damping tube, a partition plate fixedly connected to the inner wall of the damping tube, and a vent hole formed on the surface of the partition plate.

[0011] As a preferred embodiment of the present invention, the pedal assembly includes a pedal and a connecting frame fixedly installed on the side wall of the pedal.

[0012] As a preferred embodiment of the present invention, the pedal assembly further includes a first limiting shaft threadedly connected to one end of the connecting frame, and a second limiting shaft threadedly connected to the other end of the connecting frame.

[0013] Compared with existing technologies, the advantages of this utility model are as follows: the cylinder-driven adjustment component, combined with the single-headed bolt structure, enables precise adjustment of the tightness of the connection parts, ensuring stable connection under different working conditions; the damping component effectively buffers operational impacts and significantly reduces vibration transmission through the unique design of the air chamber and vent holes; the adjustable pedal component improves operating comfort and human-machine interaction; the synergistic effect of the auxiliary components and the locking rod enhances the overall structure's resistance to deformation. The entire device is compact and flexible in adjustment, not only solving the problems of easy loosening and poor impact resistance of traditional underframes, but also extending the service life of the equipment and reducing maintenance difficulty, providing a reliable guarantee for the stable operation of excavators under complex working conditions. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

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

[0016] Figure 2 This is a schematic diagram of the adjustment component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the stepping component structure of this utility model;

[0018] Figure 4 This is a partial structural diagram of the auxiliary component of this utility model;

[0019] Figure 5 This is a schematic diagram of the damping component structure of this utility model.

[0020] In the diagram: 101, clamping plate; 102, support rod; 103, fixing frame; 104, cylinder; 105, adjusting component; 106, auxiliary component; 107, clamping rod; 108, pedal component; 105a, fixing sleeve; 105b, single-headed bolt; 105c, limiting plate; 106a, fixing plate; 106b, pull rod; 106c, damping component; 106d, telescopic cylinder; 106c-1, damping tube; 106c-2, air chamber; 106c-3, partition; 106c-4, vent; 108a, pedal; 108b, connecting frame; 108c, first limiting shaft; 108d, second limiting shaft. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example

[0025] Reference Figure 1-5 This is an embodiment of the present invention, which provides a novel excavator underframe with strong connection stability, comprising:

[0026] The system includes a card plate 101, a support rod 102 fixedly mounted on the surface of the card plate 101, a fixing frame 103 fixedly connected to the side surface of the support rod 102, a cylinder 104 adapted to be mounted in the center of the fixing frame 103, an adjustment component 105 fixedly mounted on the output end of the cylinder 104, an auxiliary component 106 rotatably mounted on the end of the adjustment component 105, a card rod 107 used in conjunction with the auxiliary component 106, and a pedal component 108 rotatably mounted on the side surface of the card rod 107.

[0027] The adjustment assembly 105 includes a fixed sleeve 105a, a single-headed bolt 105b rotatably mounted in the inner cavity of the fixed sleeve 105a, and a limiting plate 105c fixedly connected to the outer surface of the fixed sleeve 105a.

[0028] The auxiliary component 106 includes a fixed plate 106a and a pull rod 106b rotatably mounted on the side surface of the fixed plate 106a.

[0029] Specifically, when connection adjustment is required, cylinder 104 pushes adjustment component 105 to move, causing fixed sleeve 105a and single-headed bolt 105b to adjust their positions; at the same time, fixed plate 106a in auxiliary component 106 drives pull rod 106b to rotate, forming a linkage with clamp rod 107; during this process, limit plate 105c ensures stable operation of adjustment component 105 and prevents excessive displacement; pedal component 108 adjusts its position synchronously with the rotation of clamp rod 107, providing a stable support platform for the operator; all components work together to achieve precise positioning and stable fixation of the lower frame connection part through mechanical linkage, ensuring that the excavator maintains optimal stability during operation.

[0030] The auxiliary component 106 also includes a damping component 106c that contacts the side surface of the pull rod 106b, and a telescopic cylinder 106d that is fixedly connected to the outer surface of the damping component 106c.

[0031] The damping component 106c includes a damping tube 106c-1, an air chamber 106c-2 opened in the center of the damping tube 106c-1, a partition 106c-3 fixedly connected to the inner wall of the damping tube 106c-1, and a vent hole 106c-4 opened on the surface of the partition 106c-3.

[0032] The pedal assembly 108 includes a pedal 108a and a connecting bracket 108b fixedly mounted on the side wall of the pedal 108a.

[0033] The pedal assembly 108 also includes a first limiting shaft 108c threaded to one end of the connecting frame 108b, and a second limiting shaft 108d threaded to the other end of the connecting frame 108b.

[0034] It should be noted that when the excavator vibrates during operation, the tie rod 106b transmits the impact force to the damping component 106c. The air chamber 106c-2 inside the damping tube 106c-1 forms a pneumatic buffer through the vent hole 106c-4 on the partition 106c-3, effectively absorbing vibration energy. At the same time, the telescopic cylinder 106d extends and retracts with the movement of the damping component 106c, maintaining structural stability. The operator can control the pedal 108a of the step assembly 108. The first limit shaft 108c and the second limit shaft 108d at both ends of the connecting frame 108b are connected by threads to achieve precise positioning and angle adjustment of the pedal 108a. With the cooperation of the adjustment component 105 driven by the cylinder 104 and the auxiliary component 106, the rigid support of the connection part is ensured, and the vibration impact is significantly reduced through the damping buffer system, so that the underframe maintains excellent stability and operating comfort under complex working conditions.

[0035] During use, the cylinder 104 drives the adjustment component 105 to achieve precise positioning and stable fixation of the connection parts. The single-headed bolt 105b and the limiting plate 105c ensure adjustment accuracy. The tie rod 106b of the auxiliary component 106 works in conjunction with the damping component 106c to effectively absorb operational vibrations by utilizing the air pressure buffering effect of the damping tube 106c-1 and the air chamber 106c-2. The pedal component 108 provides a stable operating platform through an adjustable limiting shaft structure. All functional modules form an organic whole, ensuring structural strength through rigid connections and achieving vibration buffering through the damping system. At the same time, it has a user-friendly adjustable feature, so that the underframe maintains high stability while taking into account operating comfort.

[0036] In summary, the cylinder 104-driven adjustment component 105, in conjunction with the single-headed bolt 105b structure, achieves precise positioning and stable fixation of the connection parts, ensuring reliable connection under different working conditions; the damping component 106c, through the unique design of the air chamber 106c-2 and the vent 106c-4, forms an efficient buffer system, significantly reducing the impact of operational vibrations on the frame; the adjustable pedal component 108 provides a user-friendly operating platform, improving working comfort; the coordinated operation of each functional module ensures both structural rigidity and flexible buffering, effectively solving problems such as easy loosening and poor impact resistance of traditional underframes, extending the service life of the equipment, and reducing maintenance difficulty.

[0037] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0038] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0039] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel excavator underframe with strong connection stability, characterized in that: include, The system includes a card plate (101), a support rod (102) fixedly mounted on the surface of the card plate (101), a fixing frame (103) fixedly connected to the side surface of the support rod (102), a cylinder (104) adapted to be mounted in the center of the fixing frame (103), an adjustment component (105) fixedly mounted on the output end of the cylinder (104), an auxiliary component (106) rotatably mounted on the end of the adjustment component (105), a card rod (107) used in conjunction with the auxiliary component (106), and a pedal component (108) rotatably mounted on the side surface of the card rod (107).

2. The novel excavator underframe with strong connection stability according to claim 1, characterized in that: The adjustment assembly (105) includes a fixed sleeve (105a), a single-headed bolt (105b) rotatably mounted in the inner cavity of the fixed sleeve (105a), and a limiting plate (105c) fixedly connected to the outer surface of the fixed sleeve (105a).

3. A novel excavator underframe with strong connection stability according to claim 2, characterized in that: The auxiliary component (106) includes a fixed plate (106a) and a pull rod (106b) rotatably mounted on the side surface of the fixed plate (106a).

4. A novel excavator underframe with strong connection stability according to claim 3, characterized in that: The auxiliary component (106) also includes a damping component (106c) that contacts the side surface of the pull rod (106b), and a telescopic cylinder (106d) that is fixedly connected to the outer surface of the damping component (106c).

5. A novel excavator underframe with strong connection stability according to claim 4, characterized in that: The damping component (106c) includes a damping tube (106c-1), an air chamber (106c-2) formed in the center of the damping tube (106c-1), a partition (106c-3) fixedly connected to the inner wall of the damping tube (106c-1), and a vent hole (106c-4) formed on the surface of the partition (106c-3).

6. A novel excavator underframe with strong connection stability according to claim 5, characterized in that: The pedal assembly (108) includes a pedal (108a) and a connecting frame (108b) fixedly mounted on the side wall of the pedal (108a).

7. A novel excavator underframe with strong connection stability according to claim 6, characterized in that: The pedal assembly (108) further includes a first limiting shaft (108c) threaded to one end of the connecting frame (108b) and a second limiting shaft (108d) threaded to the other end of the connecting frame (108b).

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