Reinforcing frame for optimizing bearing capacity of excavator platform

By optimizing the reinforced frame design of the excavator platform, rapid disassembly and maintenance of the frame were achieved, which facilitated the maintenance process, improved the stability and overall performance of the equipment, and solved the problems of easy deformation and difficult maintenance of traditional excavator platform structures.

CN224173404UActive Publication Date: 2026-04-28CHANGZHOU ZHAOHUI MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU ZHAOHUI MASCH CO LTD
Filing Date
2025-05-28
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional excavator platform structures are prone to stress concentration under high load operation, leading to structural deformation and weld cracking, making maintenance difficult, and the frame is difficult to disassemble for maintenance.

Method used

The frame design incorporates a chassis, connecting frame, U-shaped steel frame, and rectangular frame. Combined with a quick disassembly mechanism and a protective mechanism, the frame can be quickly disassembled and installed through the cooperation of limit components and sliding plates.

Benefits of technology

It improves the disassembly efficiency of the excavator platform, reduces maintenance costs, enhances the stability and overall performance of the equipment, prevents soil and impurities from entering the slewing bearing, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of excavator equipment, and discloses a reinforcing frame for optimizing the bearing capacity of an excavator platform, which comprises a chassis, the bottom of the chassis is fixedly connected with a connecting frame, the outer inner side of the connecting frame is fixedly connected with a U-shaped steel frame, and the outer part of the U-shaped steel frame is slidably connected with a rectangular frame. The device comprises a rectangular frame, a quick dismounting mechanism is arranged outside the rectangular frame, the quick dismounting mechanism comprises a fixing plate, a locking plate is fixedly connected to the outside of the rectangular frame, a T-shaped push rod is slidably connected to the inside of the fixing plate, and a disc is fixedly connected to the outside of the T-shaped push rod. According to the utility model, an operator firstly pulls the pull plate to drive the limiting rod to slide so as to release the limiting, then rotates and pulls the T-shaped push rod, and drives the sliding plate to slide in the rectangular frame through the disc, so that the rectangular frame and the U-shaped steel frame are quickly separated, the rectangular frame is convenient to mount and dismount, and the convenience of maintaining the frame is increased.
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Description

Technical Field

[0001] This utility model relates to the field of excavator equipment technology, and in particular to a reinforced frame for optimizing the load-bearing capacity of an excavator platform. Background Technology

[0002] In the fields of modern infrastructure construction and resource development, the application scenarios of excavators are constantly expanding, from the precision operations of urban subway construction to the large-scale mining in open-pit mines, placing stringent demands on their load-bearing capacity. Furthermore, with the development trend of intelligent and large-scale construction machinery, the precision electronic equipment and high-power power units equipped in new excavators further exacerbate the load-bearing burden on the platform. Against this backdrop, the development of a reinforced framework to optimize the load-bearing capacity of excavator platforms is urgently needed. This will not only improve the stability of the equipment throughout its entire lifecycle but also provide strong support for cost reduction and efficiency improvement in the industry.

[0003] Traditional excavator platform structures mostly use conventional welded frames. Under continuous high-load operation, they are prone to structural deformation and weld cracking caused by stress concentration. Frequent maintenance not only increases operating costs but also causes delays in the construction period due to downtime.

[0004] In the existing technology, some excavators use welded frame platforms. When the frame deforms, it is difficult to disassemble and repair it, which makes the repair process inconvenient and increases the difficulty of maintenance. To address this issue, a reinforced frame that optimizes the load-bearing capacity of the excavator platform is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a reinforced frame that optimizes the load-bearing capacity of an excavator platform, aiming to improve the problem that some devices in the prior art are difficult to disassemble for maintenance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A reinforced frame for optimizing the load-bearing capacity of an excavator platform includes a chassis. A connecting frame is fixedly connected to the bottom of the chassis. A U-shaped steel frame is fixedly connected to the inner side of the connecting frame. A rectangular frame is slidably connected to the outside of the U-shaped steel frame. A quick-release mechanism is provided on the outside of the rectangular frame. A slewing support is fixedly connected to the top of the chassis. A protective mechanism is provided on the outside of the slewing support.

[0008] The quick disassembly mechanism includes a fixing plate, which is externally fixedly connected to the outer side of the rectangular frame. A locking plate is externally fixedly connected to the rectangular frame. A T-shaped push rod is slidably connected inside the fixing plate. A disc is externally fixedly connected to the T-shaped push rod. A sliding plate is slidably connected inside the rectangular frame. One external end of the sliding plate is slidably connected to the inside of the U-shaped steel frame. A limit assembly is slidably connected inside the U-shaped steel frame.

[0009] As a further description of the above technical solution:

[0010] The protective mechanism includes an annular groove seat, the outer inner side of which is fixedly connected to the outside of the rotary support seat, a turntable is rotatably connected to the inner top side of the rotary support seat, a protective sleeve is fixedly connected to the bottom of the turntable, a circular ring plate is fixedly connected to the bottom of the protective sleeve, and a sliding component is fixedly connected to the bottom of the circular ring plate.

[0011] As a further description of the above technical solution:

[0012] The limiting assembly includes a limiting rod, the limiting rod being slidably connected to the outside of the U-shaped steel frame, the limiting rod being slidably connected to the outside of the sliding plate, a pull plate being fixedly connected to the outside of the limiting rod, the pull plate being slidably connected to the outside of the U-shaped steel frame, the T-shaped push rod being slidably connected to the outside of the locking plate, and the disc being slidably connected to the outside of the sliding plate.

[0013] As a further description of the above technical solution:

[0014] The sliding assembly includes a fixed block, the top of which is fixedly connected to the bottom of the annular plate, and a rotating wheel is rotatably connected inside the fixed block. The bottom of the rotating wheel is slidably connected to the inner bottom side of the annular groove seat.

[0015] As a further description of the above technical solution:

[0016] The rectangular frame is internally fixedly connected with transverse reinforcing ribs, and the rectangular frame is internally fixedly connected with longitudinal reinforcing ribs. The bottom of the longitudinal reinforcing ribs is fixedly connected to the top of the transverse reinforcing ribs.

[0017] As a further description of the above technical solution:

[0018] The outer side of the protective sleeve is slidably connected to the inside of the annular groove seat, and the outer side of the circular plate is slidably connected to the inside of the annular groove seat;

[0019] As a further description of the above technical solution:

[0020] A pusher support is fixedly connected to the outer front side of the chassis, and the interior of the pusher support is used to rotatably connect the pusher.

[0021] As a further description of the above technical solution:

[0022] The connecting frame is fixedly connected to the outside of a track bracket, and the outside of the track bracket is used to support the track.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the operator first pulls the pull plate to drive the limit rod to slide and release the limit, then rotates and pulls the T-shaped push rod, which drives the sliding plate to slide within the rectangular frame through the disc, thereby realizing the rapid separation of the rectangular frame and the U-shaped steel frame. This facilitates the installation and disassembly of the rectangular frame, improves the disassembly efficiency of equipment during construction, saves time and labor costs, and increases the convenience of frame maintenance.

[0025] 2. In this utility model, the turntable drives the protective sleeve to move. The protective sleeve slides in the annular groove seat through the annular plate. The annular plate rolls at the bottom of the annular groove seat through the rotating wheel. The protective sleeve, the annular plate, and the rotating wheel work together to protect the slewing support seat, effectively preventing soil, sand and gravel impurities from entering the interior of the slewing support seat, ensuring normal operation, and improving the overall performance and stability of the excavator. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a reinforced frame for optimizing the load-bearing capacity of an excavator platform, as proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the structure of a turntable with a reinforced frame that optimizes the load-bearing capacity of an excavator platform, as proposed in this utility model.

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0030] Figure 5 This is a schematic diagram of the rectangular frame structure of a reinforced frame for optimizing the load-bearing capacity of an excavator platform, as proposed in this utility model.

[0031] Legend:

[0032] 1. Chassis; 2. Connecting frame; 3. U-shaped steel frame; 4. Rectangular frame; 5. Fixing plate; 6. Locking plate; 7. T-shaped push rod; 8. Disc; 9. Sliding plate; 10. Limiting rod; 11. Pull plate; 12. Rotary support seat; 13. Turntable; 14. Annular groove seat; 15. Protective sleeve; 16. Circular ring plate; 17. Fixing block; 18. Rotary wheel; 19. Lateral reinforcing rib; 20. Longitudinal reinforcing rib; 21. Pusher support; 22. Track bracket. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1 to 3 This utility model provides an embodiment of a reinforced frame for optimizing the load-bearing capacity of an excavator platform, including a chassis 1. The chassis 1 is the basic load-bearing component of the reinforced frame of the excavator platform. A connecting frame 2 is fixedly connected to the bottom of the chassis 1. The connecting frame 2 is the connecting component between the chassis 1 and the lower traveling device, and plays the role of transmitting load. A U-shaped steel frame 3 is fixedly connected to the inner side of the connecting frame 2. The U-shaped steel frame 3 has high bending strength and stability. A rectangular frame 4 is slidably connected to the outside of the U-shaped steel frame 3. The rectangular frame 4 is an important component of the reinforced frame. A quick disassembly mechanism is provided on the outside of the rectangular frame 4. A slewing support seat 12 is fixedly connected to the top of the chassis 1. The slewing support seat 12 is a key connecting component between the upper slewing mechanism of the excavator and the chassis 1. A protective mechanism is provided on the outside of the slewing support seat 12.

[0035] The quick-release mechanism includes a fixed plate 5, which provides a sliding guide for the T-shaped push rod 7. The fixed plate 5 is externally fixed to one side of the rectangular frame 4. A locking plate 6 is externally fixed to the rectangular frame 4, cooperating with the T-shaped push rod 7 to achieve locking and unlocking functions. The T-shaped push rod 7 is internally slidably connected to the fixed plate 5. The design of the T-shaped push rod 7 facilitates locking and unlocking actions by pushing and pulling. The T-shaped push rod 7 is externally slidably connected to the outside of the locking plate 6. A disc 8 is externally fixed to the T-shaped push rod 7. When the T-shaped push rod... When push rod 7 moves, it drives sliding plate 9 to slide within rectangular frame 4 via disc 8. At the same time, disc 8 ensures that sliding plate 9 is not affected by the rotation of T-shaped push rod 7. Sliding plate 9 is slidably connected inside rectangular frame 4. The function of sliding plate 9 is to connect and separate from U-shaped steel frame 3 under the drive of T-shaped push rod 7 and disc 8, thereby achieving the purpose of quick disassembly and installation of rectangular frame 4. Disc 8 is slidably connected to the inside of sliding plate 9 on the outside. One end of sliding plate 9 is slidably connected to the inside of U-shaped steel frame 3 on the outside. Limiting components are slidably connected inside U-shaped steel frame 3.

[0036] The limiting assembly includes a limiting rod 10, which restricts the sliding of the sliding plate 9. The limiting rod 10 is externally slidably connected to the inside of the U-shaped steel frame 3. The limiting rod 10 is externally slidably connected to the inside of the sliding plate 9. A pull plate 11 is externally fixedly connected to the limiting rod 10. The main function of the pull plate 11 is to allow the operator to pull it to move the limiting rod 10, thereby limiting the sliding plate 9. The pull plate 11 is externally slidably connected to the inside of the U-shaped steel frame 3.

[0037] Reference Figure 2 and Figure 4 The protective mechanism includes an annular groove seat 14. The annular structure of the annular groove seat 14 provides a sliding track for the protective sleeve 15 and the circular ring plate 16. The outer inner side of the annular groove seat 14 is fixedly connected to the outside of the slewing support seat 12. The top inner side of the slewing support seat 12 is rotatably connected to a turntable 13, which is the installation base for the upper working device of the excavator. The bottom of the turntable 13 is fixedly connected to the protective sleeve 15. The function of the protective sleeve 15 is to protect the slewing support seat 12 and prevent soil and sand from entering the interior of the slewing support seat 12 and affecting normal operation. The bottom of the protective sleeve 15 is fixedly connected to the circular ring plate 16. The circular ring plate 16 slides together with the protective sleeve 15 in the annular groove seat 14, playing a role in auxiliary support and guidance. The bottom of the circular ring plate 16 is fixedly connected to a sliding component. The outside of the protective sleeve 15 is slidably connected to the inside of the annular groove seat 14, and the outside of the circular ring plate 16 is slidably connected to the inside of the annular groove seat 14.

[0038] The sliding assembly includes a fixing block 17, which provides an installation position for the rotating wheel 18. The top of the fixing block 17 is fixedly connected to the bottom of the annular plate 16. The rotating wheel 18 is rotatably connected inside the fixing block 17. The rotating wheel 18 allows the protective sleeve 15 and the annular plate 16 to slide more smoothly in the annular groove seat 14. The bottom of the rotating wheel 18 is slidably connected to the inner bottom side of the annular groove seat 14.

[0039] Reference Figure 1 and Figure 5 The rectangular frame 4 has a fixed internal connection of transverse reinforcing ribs 19, which mainly bear the load in the transverse direction. The rectangular frame 4 also has a fixed internal connection of longitudinal reinforcing ribs 20, which mainly bear the load in the longitudinal direction. The bottom of the longitudinal reinforcing ribs 20 is fixedly connected to the top of the transverse reinforcing ribs 19. The transverse reinforcing ribs 19 and the longitudinal reinforcing ribs 20 work together to greatly enhance the overall strength and rigidity of the rectangular frame 4. The front side of the chassis 1 is fixedly connected to a pusher support 21, which provides a fulcrum for the rotatable connection of the pusher. The interior of the pusher support 21 is used for the rotatable connection of the pusher. The connecting frame 2 has a fixed external connection of a track bracket 22, which provides a structural foundation for the installation and support of the track. The exterior of the track bracket 22 is used to support the track.

[0040] Working principle: The operator pulls the pull plate 11, which drives the limit rod 10 to slide within the U-shaped steel frame 3 and the sliding plate 9, releasing the limit on the sliding plate 9. Then, the operator first rotates the T-shaped push rod 7 to align the T-shaped push rod 7 with the groove of the locking plate 6, and then pulls the T-shaped push rod 7. The T-shaped push rod 7 slides between the fixed plate 5 and the locking plate 6, causing the T-shaped push rod 7 to drive the sliding plate 9 to slide within the rectangular frame 4 through the disc 8, so that one end of the sliding plate 9 slides out of the U-shaped steel frame 3, realizing the separation of the rectangular frame 4 from the U-shaped steel frame 3, and completing the disassembly.

[0041] When the excavator is working, the chassis 1 carries the upper structure and transmits it to the lower traveling device through the connecting frame 2. The turntable 13 rotates on the slewing support seat 12, driving the upper working device to work. The turntable 13 can drive the protective sleeve 15 to move. The protective sleeve 15 slides in the annular groove seat 14 through the annular plate 16. The annular plate 16 rolls at the bottom of the annular groove seat 14 through the rotating wheel 18. The protective sleeve 15 can prevent impurities from entering the slewing support seat 12. The transverse reinforcing rib 19 and the longitudinal reinforcing rib 20 enhance the strength and rigidity of the rectangular frame 4.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reinforced frame for optimizing the load-bearing capacity of an excavator platform, comprising a chassis (1), characterized in that: The bottom of the chassis (1) is fixedly connected to a connecting frame (2), and the inner side of the connecting frame (2) is fixedly connected to a U-shaped steel frame (3). The outer side of the U-shaped steel frame (3) is slidably connected to a rectangular frame (4). The outer side of the rectangular frame (4) is provided with a quick disassembly mechanism. The top of the chassis (1) is fixedly connected to a rotary support seat (12), and the outer side of the rotary support seat (12) is provided with a protective mechanism. The quick disassembly mechanism includes a fixing plate (5), which is fixedly connected to the outside of the rectangular frame (4) on one side. A locking plate (6) is fixedly connected to the outside of the rectangular frame (4). A T-shaped push rod (7) is slidably connected inside the fixing plate (5). A disc (8) is fixedly connected to the outside of the T-shaped push rod (7). A sliding plate (9) is slidably connected inside the rectangular frame (4). One end of the sliding plate (9) is slidably connected to the inside of the U-shaped steel frame (3). A limit assembly is slidably connected inside the U-shaped steel frame (3).

2. The reinforced frame for optimizing the load-bearing capacity of an excavator platform according to claim 1, characterized in that: The protective mechanism includes an annular groove seat (14), the outer inner side of which is fixedly connected to the outside of the rotary support seat (12). The top inner side of the rotary support seat (12) is rotatably connected to a turntable (13). The bottom of the turntable (13) is fixedly connected to a protective sleeve (15). The bottom of the protective sleeve (15) is fixedly connected to a circular ring plate (16). The bottom of the circular ring plate (16) is fixedly connected to a sliding component.

3. The reinforced frame for optimizing the load-bearing capacity of an excavator platform according to claim 1, characterized in that: The limiting assembly includes a limiting rod (10), the limiting rod (10) is externally slidably connected to the inside of the U-shaped steel frame (3), the limiting rod (10) is externally slidably connected to the inside of the sliding plate (9), a pull plate (11) is fixedly connected to the outside of the limiting rod (10), the pull plate (11) is externally slidably connected to the inside of the U-shaped steel frame (3), the T-shaped push rod (7) is externally slidably connected to the outside of the locking plate (6), and the disc (8) is externally slidably connected to the inside of the sliding plate (9).

4. The reinforced frame for optimizing the load-bearing capacity of an excavator platform according to claim 2, characterized in that: The sliding assembly includes a fixed block (17), the top of which is fixedly connected to the bottom of the annular plate (16), and a rotating wheel (18) is rotatably connected inside the fixed block (17), the bottom of which is slidably connected to the bottom side of the annular groove seat (14).

5. The reinforced frame for optimizing the load-bearing capacity of an excavator platform according to claim 1, characterized in that: The rectangular frame (4) is fixedly connected to a transverse reinforcing rib (19) inside, and a longitudinal reinforcing rib (20) is fixedly connected to the inside of the rectangular frame (4). The bottom of the longitudinal reinforcing rib (20) is fixedly connected to the top of the transverse reinforcing rib (19).

6. The reinforced frame for optimizing the load-bearing capacity of an excavator platform according to claim 4, characterized in that: The outer side of the protective sleeve (15) is slidably connected to the inside of the annular groove seat (14), and the outer side of the circular plate (16) is slidably connected to the inside of the annular groove seat (14).

7. The reinforced frame for optimizing the load-bearing capacity of an excavator platform according to claim 1, characterized in that: A pusher support (21) is fixedly connected to the front of the chassis (1), and the interior of the pusher support (21) is used to rotatably connect the pusher.

8. The reinforced frame for optimizing the load-bearing capacity of an excavator platform according to claim 1, characterized in that: The connecting frame (2) is fixedly connected to the outside of a track bracket (22), and the outside of the track bracket (22) is used to support the track.