Excavator cabin supporting frame and excavator

Abstract

The excavator cabin supporting frame comprises a frame body, the frame body comprises an assembly frame, an engine installation frame and a radiator installation frame, a first connecting structure is arranged on one side of the assembly frame and used for being fixedly connected with a main platform of the excavator, and an installation area is arranged in the middle of the assembly frame; the engine mounting frame is arranged in the middle of the assembling frame and fixedly connected with the assembling frame so as to be used for assembling an excavator engine. The two radiator mounting frames are arranged on the two sides of the engine mounting frame correspondingly and used for assembling the radiators, the covering part assembly is assembled on the assembling frame, the engine mounting frame, the radiator mounting frames and the covering part assembly are integrated into the same assembling frame, the main platform is only connected with the frame on one side of the assembling frame, and therefore the assembling efficiency is improved. The welding error between different platforms is reduced, the assembly precision of the assembly frame and the main platform is guaranteed, and the problem that assembly is difficult due to the error between the different platforms is solved.

Description

Technical Field

[0001] This utility model relates to the field of excavator technology, and in particular to an excavator cab support frame and an excavator. Background Technology

[0002] In the field of construction machinery, excavators, as important earthmoving machines, directly affect construction efficiency and quality through their performance and reliability. The engine is the core component of an excavator's power system, responsible for providing the power required for the machine's operation. To effectively manage the heat generated by the engine during operation and ensure it operates within a suitable temperature range, a radiator is an indispensable component. However, the layout of the engine and radiator in the traditional excavator structural design presents some inherent technical challenges.

[0003] Typically, excavator engines are mounted on the main platform to ensure direct and stable power transmission, while also facilitating engine maintenance. Radiators, as a crucial component of the engine cooling system, are usually located on the left and right side platforms. This design aims to utilize the vehicle's natural ventilation to improve heat dissipation efficiency. However, this distributed layout introduces a series of installation and assembly challenges.

[0004] However, because the radiator is placed on the left and right platforms, and the engine is located on the main platform in the middle, the cover mounting bracket spans multiple platforms. Welding errors exist between the platforms, which can lead to mismatches in the screw holes at the junction of the main platform and the left and right platforms when installing the cover, engine, and radiator. This makes screw installation difficult. Furthermore, it is difficult to ensure the connection of the connecting pipes between the engine and radiator when they are installed on different platforms. It is also difficult to ensure that the height difference between adjacent cover supports across multiple platforms meets the conditions for horizontal and stable installation of the cover. This seriously affects the assembly accuracy and quality, and may even lead to installation problems, resulting in rework and increasing manufacturing and time costs. Utility Model Content

[0005] In order to overcome at least one of the defects of the prior art, the present invention provides an excavator cabin support frame and an excavator, which can solve the problem of difficult installation of the cover due to platform welding errors.

[0006] The technical solution adopted by this utility model to solve its problem is:

[0007] An excavator cab support frame includes a frame body, the frame body comprising:

[0008] An assembly frame, wherein a first connecting structure is provided on one side of the assembly frame for fixed connection with the main platform of the excavator, and an installation area is provided in the middle of the assembly frame;

[0009] An engine mounting bracket is disposed in the middle of the assembly frame and fixedly connected to the assembly frame for mounting an excavator engine;

[0010] Two radiator mounting brackets are provided, one on each side of the engine mounting bracket, for mounting radiators.

[0011] Furthermore, the first connection structure is a cover, and multiple covers are provided along one side of the assembly frame, and all covers are fixedly connected to the assembly frame to fix the assembly frame and the main platform.

[0012] Furthermore, the engine mounting bracket includes a first mounting seat, a second mounting seat, a third mounting seat, and a fourth mounting seat. The first mounting seat, the second mounting seat, the third mounting seat, and the fourth mounting seat are all located within the mounting area and are all fixedly connected to the assembly frame.

[0013] Furthermore, the first mounting base, the second mounting base, the third mounting base, and the fourth mounting base are all provided with engine mounting holes for fixing the engine.

[0014] Furthermore, the first mounting base, the second mounting base, the third mounting base, and the fourth mounting base are arranged in a matrix, and the first mounting base, the second mounting base, the third mounting base, and the fourth mounting base are connected end to end by tie beams.

[0015] Furthermore, the first mounting base is provided with a first structural plate for connecting with the adjacent assembly frame, and the first mounting base is fixedly connected to the assembly frame through the first structural plate;

[0016] The second mounting base is provided with a second structural plate for connecting with the adjacent assembly frame, and the second mounting base is fixedly connected to the assembly frame through the second structural plate;

[0017] The third mounting base is provided with a third structural plate for connecting with the adjacent assembly frame, and the third mounting base is fixedly connected to the assembly frame through the third structural plate;

[0018] The fourth mounting base is provided with a fourth structural plate for connecting with the adjacent assembly frame, and the fourth mounting base is fixedly connected to the assembly frame through the fourth structural plate.

[0019] Furthermore, the two radiator mounting brackets are respectively a first radiator mounting bracket and a second radiator mounting bracket. The first radiator mounting bracket is disposed at one end of the assembly frame, and the second radiator mounting bracket is disposed at the other end of the assembly frame. The assembly frame is provided with a first limiting plate at the end where the first radiator mounting bracket is disposed for radiator assembly positioning, and a second limiting plate at the end where the second radiator mounting bracket is disposed for radiator assembly positioning.

[0020] Furthermore, the assembly frame is rectangular and has four corner points, each of which is provided with an L-shaped reinforcing plate.

[0021] This utility model also provides an excavator, including the excavator cabin support frame described above.

[0022] In summary, the excavator cab support frame and excavator provided by this utility model have the following technical effects:

[0023] 1. By integrating the engine mounting bracket and radiator mounting bracket into the same assembly frame, the main platform is only connected to one side of the frame. The single side frame is a whole, and the production process is also a one-piece molding process. This reduces welding errors between different platforms, ensures the assembly accuracy between the assembly frame and the main platform, and greatly reduces the possibility of assembly difficulties or even assembly failures due to errors between different platforms.

[0024] 2. Both the engine and radiator are mounted on the assembly frame, which is equivalent to mounting the engine and radiator on the same platform. This ensures the assembly accuracy of the engine and radiator, as well as the assembly accuracy of the pipes between the engine and radiator. This greatly reduces the possibility of assembly difficulties or even assembly failures due to errors between different platforms. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the frame body of this utility model assembled on the main platform.

[0027] The meanings of the reference numerals in the attached drawings are as follows: 1. Frame body; 11. Assembly frame; 111. First limiting plate; 112. Second limiting plate; 113. L-shaped reinforcing plate; 12. Engine mounting bracket; 121. First mounting seat; 1211. First structural plate; 122. Second mounting seat; 1221. Second structural plate; 123. Third mounting seat; 1231. Third structural plate; 124. Fourth mounting seat; 1241. Fourth structural plate; 125. Engine mounting hole; 126. Tie beam; 131. First radiator mounting bracket; 132. Second radiator mounting bracket; 2. Cover piece; 3. Main platform. Detailed Implementation

[0028] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.

[0029] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0032] See Figures 1-2This utility model discloses an excavator cabin support frame, including a frame body 1. The frame body 1 includes an assembly frame 11, an engine mounting bracket 12, and a radiator mounting bracket. A first connecting structure is provided on one side of the assembly frame 11 for fixed connection with the excavator main platform 3. An installation area is provided in the middle of the assembly frame 11. The engine mounting bracket 12 is located in the middle of the assembly frame 11 and is fixedly connected to the assembly frame 11 for mounting the excavator engine. Two radiator mounting brackets are provided and are respectively located on both sides of the engine mounting bracket 12 for mounting the radiator.

[0033] Specifically, the assembly frame 11 is used for fixed connection with the excavator main platform 3. A dedicated installation area is provided in the middle of the assembly frame 11 for arranging other components. A first connecting structure is provided on one side of the assembly frame 11 for fixed connection with the excavator main platform 3. The engine mounting bracket 12 is located in the middle of the assembly frame 11 and is fixedly connected to it. Two radiator mounting brackets are provided, respectively located on both sides of the engine mounting bracket 12. These radiator mounting brackets are a first radiator mounting bracket 131 and a second radiator mounting bracket 132, located on both sides of the engine mounting bracket 12. Both the engine mounting bracket 12 and the radiator mounting brackets are located within the installation area.

[0034] By centrally mounting the engine and radiator within the same assembly frame 11, the problem of misaligned screw holes caused by welding errors across multiple platforms is avoided, thus improving assembly accuracy, simplifying the installation process, reducing installation steps, and making excavator assembly more efficient.

[0035] In some embodiments, the first connection structure is a cover 2, and multiple cover 2s are provided along one side of the assembly frame 11, and all cover 2s are fixedly connected to the assembly frame 11 to fix the assembly frame 11 and the main platform 3.

[0036] Specifically, multiple cover pieces 2 are provided along one side of the assembly frame 11, and all cover pieces 2 are fixedly connected to the assembly frame 11 to secure the connection between the assembly frame 11 and the excavator main platform 3, ensuring that the assembly frame 11 can be stably installed on the main platform 3. The cover pieces 2 have screw holes, and the main platform 3 and assembly frame 11 have corresponding screw holes. During assembly, the portion of the main platform 3 with screw holes is positioned between the cover pieces 2 and the assembly frame 11. Screws are then passed through the cover pieces 2, the main platform 3, and the assembly frame 11 in sequence to secure all three, thereby securing the main platform 3 and the assembly frame 11. Because the design of the cover pieces 2 concentrates the connection points between the assembly frame 11 and the main platform 3 on one side, it reduces the cumulative error caused by welding between different platforms and improves assembly accuracy.

[0037] In some embodiments, the engine mounting bracket 12 includes a first mounting seat 121, a second mounting seat 122, a third mounting seat 123, and a fourth mounting seat 124. The first mounting seat 121, the second mounting seat 122, the third mounting seat 123, and the fourth mounting seat 124 are all located in the mounting area and are all fixedly connected to the assembly frame 11.

[0038] Specifically, the first mounting base 121, the second mounting base 122, the third mounting base 123 and the fourth mounting base 124 are all located in the mounting area in the middle of the assembly frame 11, and each mounting base (the first mounting base 121, the second mounting base 122, the third mounting base 123 and the fourth mounting base 124) is fixedly connected to the assembly frame 11.

[0039] In some embodiments, the first mounting base 121, the second mounting base 122, the third mounting base 123 and the fourth mounting base 124 are all provided with engine mounting holes 125 for fixing the engine.

[0040] Specifically, each mounting base (first mounting base 121, second mounting base 122, third mounting base 123, and fourth mounting base 124) is precisely provided with engine mounting holes 125 so that the first mounting base 121, second mounting base 122, third mounting base 123, and fourth mounting base 124 are respectively fixedly connected to the engine, ensuring that the engine can be stably fixed on the support frame.

[0041] Optionally, to facilitate engine installation and subsequent maintenance, auxiliary positioning structures or markings may be provided around the engine mounting holes 125 to help quickly and accurately align the various fixing points. Some engine mounting holes 125 may be designed as elliptical or oblong holes, providing a certain range of positional adjustment margin to accommodate different engine models or slight installation deviations.

[0042] In some embodiments, the first mounting base 121, the second mounting base 122, the third mounting base 123, and the fourth mounting base 124 are arranged in a matrix, and the first mounting base 121, the second mounting base 122, the third mounting base 123, and the fourth mounting base 124 are connected end to end by tie beams 126.

[0043] Specifically, the first mounting base 121, the second mounting base 122, the third mounting base 123, and the fourth mounting base 124 are arranged in a matrix in the middle of the assembly frame 11. This arrangement ensures that the weight of the engine can be evenly distributed across the four mounting points, avoiding localized stress concentration and improving the stability and reliability of the entire system. Furthermore, the matrix layout ensures that the center of gravity of the engine is located in the center after installation, which helps maintain the balance of the excavator during operation and reduces mechanical problems caused by uneven loading.

[0044] The first mounting base 121, the second mounting base 122, the third mounting base 123, and the fourth mounting base 124 are connected end-to-end by tie beam 126, forming a closed frame structure. This not only increases the lateral and longitudinal connection strength between the first mounting base 121, the second mounting base 122, the third mounting base 123, and the fourth mounting base 124, but also improves the overall rigidity of the entire support frame. Furthermore, the design of tie beam 126 can effectively transmit and disperse the vibration and impact forces generated during engine operation, reducing the pressure on individual mounting bases and extending their service life.

[0045] In addition, the presence of the tie beam 126 creates a mutually restrictive relationship between the first mounting seat 121, the second mounting seat 122, the third mounting seat 123 and the fourth mounting seat 124. Even if a mounting seat is subjected to external force, the other mounting seats can provide reverse support through the tie beam 126 to prevent displacement or deformation.

[0046] In some embodiments, the first mounting base 121 is provided with a first structural plate 1211 for connecting with an adjacent assembly frame 11, and the first mounting base 121 is fixedly connected to the assembly frame 11 through the first structural plate 1211.

[0047] The second mounting base 122 is provided with a second structural plate 1221 for connecting with the adjacent assembly frame 11. The second mounting base 122 is fixedly connected to the assembly frame 11 through the second structural plate 1221.

[0048] The third mounting base 123 is provided with a third structural plate 1231 for connecting with the adjacent assembly frame 11. The third mounting base 123 is fixedly connected to the assembly frame 11 through the third structural plate 1231.

[0049] The fourth mounting base 124 is provided with a fourth structural plate 1241 for connecting with the adjacent assembly frame 11. The fourth mounting base 124 is fixedly connected to the assembly frame 11 through the fourth structural plate 1241.

[0050] Specifically, each mounting base is fixedly connected to the assembly frame 11 via its corresponding structural plate. For example, the first structural plate 1211 of the first mounting base 121 is fixedly connected to the assembly frame 11, the second structural plate 1221 of the second mounting base 122 is fixedly connected to the assembly frame 11, the third structural plate 1231 of the third mounting base 123 is fixedly connected to the assembly frame 11, and the fourth structural plate 1241 of the fourth mounting base 124 is fixedly connected to the assembly frame 11. This structure significantly enhances the connection strength between the first mounting base 121, the second mounting base 122, the third mounting base 123, and the fourth mounting base 124 and the assembly frame 11, ensuring that the engine and its related components can be securely mounted on the support frame. When it is necessary to resist external stress, the structural plate not only strengthens the connection between the mounting base and the assembly frame 11, but also provides additional support points for the entire support frame, helping to disperse stress and reduce the risk of deformation or damage caused by excessive local stress.

[0051] Furthermore, the two radiator mounting brackets are a first radiator mounting bracket 131 and a second radiator mounting bracket 132, respectively. The first radiator mounting bracket 131 is located at one end of the assembly frame 11, and the second radiator mounting bracket 132 is located at the other end of the assembly frame 11. The assembly frame 11 has a first limiting plate 111 at the end where the first radiator mounting bracket 131 is located for radiator assembly positioning, and a second limiting plate 112 at the end where the second radiator mounting bracket 132 is located for radiator assembly positioning.

[0052] Specifically, in the excavator's engine compartment support frame, the first radiator mounting bracket 131 and the second radiator mounting bracket 132 are located at both ends of the assembly frame 11, ensuring a symmetrical layout and load balance for the radiators. The assembly frame 11 has a first limiting plate 111 and a second limiting plate 112 at both ends for precise radiator assembly positioning, reducing installation errors and improving work efficiency. The limiting plates not only enhance the structural strength at both ends of the assembly frame 11 but also optimize heat dissipation performance, ensuring good airflow and improving the overall system's stability and reliability.

[0053] Through the above structure, the support frame not only solves the problems encountered in the radiator installation process of traditional excavators, but also simplifies the installation process and facilitates subsequent maintenance. Precise assembly positioning and enhanced structural strength improve the product's durability and safety, while also optimizing heat dissipation to ensure the excavator's working efficiency and reliability.

[0054] In some embodiments, the assembly frame 11 is rectangular and has four corner points, each of which is provided with an L-shaped reinforcing plate 113.

[0055] Specifically, the assembly frame 11 is rectangular, with L-shaped reinforcing plates 113 at each of the four corners. This structure enhances the structural strength and rigidity of the assembly frame 11, effectively disperses stress, reduces the risk of local deformation, and ensures a stable connection around the assembly frame 11, thereby improving the durability and safety of the entire support frame.

[0056] This utility model also provides an excavator, including the excavator cabin support frame described above.

[0057] Specifically, the excavator adopts the nacelle support frame of this invention, integrating the engine mounting bracket 12 and the radiator mounting bracket into the same assembly frame 11. This integrated design reduces welding errors between different platforms, improves assembly accuracy, simplifies the installation process, and enhances the rigidity and stability of the overall structure.

[0058] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A support frame for an excavator cab, characterized in that, Includes a frame body (1), which includes: Assembly frame (11), one side of the assembly frame (11) is provided with a first connecting structure for fixed connection with the excavator main platform (3), and the middle part of the assembly frame (11) is provided with an installation area; An engine mounting bracket (12) is located in the middle of the assembly frame (11) and is fixedly connected to the assembly frame (11) for mounting an excavator engine. Two radiator mounting brackets are provided and are respectively located on both sides of the engine mounting bracket (12) for mounting radiators.

2. The excavator cab support frame according to claim 1, characterized in that, The first connection structure is a cover (2), and multiple covers (2) are provided along one side of the assembly frame (11), and all covers (2) are fixedly connected to the assembly frame (11) to fix the assembly frame (11) and the main platform (3).

3. The excavator cab support frame according to claim 2, characterized in that, The engine mounting bracket (12) includes a first mounting seat (121), a second mounting seat (122), a third mounting seat (123), and a fourth mounting seat (124). The first mounting seat (121), the second mounting seat (122), the third mounting seat (123), and the fourth mounting seat (124) are all located in the mounting area and are all fixedly connected to the assembly frame (11).

4. The excavator cab support frame according to claim 3, characterized in that, The first mounting base (121), the second mounting base (122), the third mounting base (123) and the fourth mounting base (124) are all provided with engine mounting holes (125) for fixing the engine.

5. The excavator cab support frame according to claim 3, characterized in that, The first mounting base (121), the second mounting base (122), the third mounting base (123) and the fourth mounting base (124) are arranged in a matrix, and the first mounting base (121), the second mounting base (122), the third mounting base (123) and the fourth mounting base (124) are connected end to end by tie beams (126).

6. The excavator cab support frame according to claim 3, characterized in that, The first mounting base (121) is provided with a first structural plate (1211) for connecting with the adjacent assembly frame (11), and the first mounting base (121) is fixedly connected to the assembly frame (11) through the first structural plate (1211); The second mounting base (122) is provided with a second structural plate (1221) for connecting with the adjacent assembly frame (11), and the second mounting base (122) is fixedly connected to the assembly frame (11) through the second structural plate (1221); The third mounting base (123) is provided with a third structural plate (1231) for connecting with the adjacent assembly frame (11), and the third mounting base (123) is fixedly connected to the assembly frame (11) through the third structural plate (1231); The fourth mounting base (124) is provided with a fourth structural plate (1241) for connecting with the adjacent assembly frame (11), and the fourth mounting base (124) is fixedly connected to the assembly frame (11) through the fourth structural plate (1241).

7. An excavator nacelle support frame according to any one of claims 1-6, characterized in that, The two radiator mounting brackets are a first radiator mounting bracket (131) and a second radiator mounting bracket (132). The first radiator mounting bracket (131) is located at one end of the assembly frame (11), and the second radiator mounting bracket (132) is located at the other end of the assembly frame (11). The assembly frame (11) has a first limiting plate (111) at the end where the first radiator mounting bracket (131) is located for radiator assembly positioning, and a second limiting plate (112) at the end where the second radiator mounting bracket (132) is located for radiator assembly positioning.

8. An excavator nacelle support frame according to any one of claims 1-6, characterized in that, The assembly frame (11) is rectangular and has four corner points. Each of the four corner points of the assembly frame (11) is provided with an L-shaped reinforcing plate (113).

9. An excavator, characterized in that, Includes the excavator nacelle support frame as described in any one of claims 1-8.

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