Internal supporting plate of excavator arm
By setting up a reinforcement layer and a vibration-absorbing layer in the support plate inside the excavator arm and casting it in one piece with the support plate mounting frame, the problem of insufficient strength of the support plate structure is solved, the high strength and toughness of the support plate are achieved, and deformation is prevented, and the stability of the use of the excavator arm is improved.
Patent Information
- Application Number
- CN202422588381.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-25
AI Technical Summary
The support plates of the existing excavator arms are insufficient in structural strength under high-strength operations, and are prone to damage at the welding site, which affects normal use.
The support plate body is equipped with a reinforcement layer 1, reinforcement layer 2, vibration-absorbing layer and reinforcement layer, and is cast and molded together with the support plate mounting frame to increase the strength and toughness of the support plate, and enhance the support through the fit between the reinforcement ribs and the support plate mounting frame.
The strength and toughness of the support plate inside the excavator arm is improved, which prevents deformation and ensures the stability and durability of the support plate.
Smart Images
Figure CN223226705U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of support plates, and in particular relates to an internal support plate of an excavator arm. Background Art
[0002] An excavator, also known as an excavator or a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the bearing surface and load them into transport vehicles or unload them to a stockpile. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rock. From the development of engineering machinery in recent years, the development of excavators has been relatively rapid, and excavators have become one of the most important engineering machinery in engineering construction. However, during the use of the excavator arm, the support plate of the mechanical arm is an important component of the arm. It not only connects the various components of the mechanical arm, but also bears the bending and torsional torque generated by the weight of the workpiece.
[0003] In the prior art, conventional support plates are mostly fixedly connected to the inside of the excavator arm by welding. Under the high-intensity operation of the excavator arm, the structural strength of the support plate is far from sufficient, and the welding parts will still be damaged after long-term use, which will inevitably affect the normal use of the excavator arm support. Therefore, an improvement is now made to an internal support plate of the excavator arm. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides an internal support plate of an excavator arm, which is provided with a reinforcing layer 1, a reinforcing layer 2, a vibration-damping layer and a strengthening layer inside the support plate body, and the purpose of the setting is to increase the strength and toughness of the support plate body as a whole inside the excavator arm body. At the same time, the reinforcing ribs and the support plate body are integrally cast and formed with the support plate mounting frame to increase the support of the support plate body inside the excavator arm body, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model proposes an internal support plate of an excavator arm, comprising an excavator arm body, a support plate mounting frame overlapped on the outside of the excavator arm body, a reinforcing rib fixedly connected at the inner center of the support plate mounting frame, two support plate bodies fixedly connected on the outer side of the support plate mounting frame, a reinforcing layer one is provided inside the support plate body, a reinforcing layer two is fixedly connected to the bottom of the reinforcing layer one, a vibration-damping layer is fixedly provided on the bottom of the reinforcing layer two, and a strengthening layer is fixedly connected to the bottom of the vibration-damping layer.
[0006] Preferably, a fixing plate is installed at the bottom of the support plate mounting frame, and a mounting plate is connected to the outside of the fixing plate. Positioning threaded holes are provided on the mounting plate, the fixing plate and the interior of the excavator arm body. The internal thread sleeve of the positioning threaded hole is provided with a positioning bolt, and the external thread of the positioning bolt is matched with a locking nut.
[0007] Preferably, a boom seat sleeve is installed at the bottom of the excavator arm body, a mechanical connecting seat is provided at one end of the excavator arm body, a connecting hole is opened inside the connecting seat, and two connecting frames are installed at the other end of the excavator arm body, and an excavation fixing rod is fixedly connected between the two connecting frames.
[0008] Preferably, the reinforcing ribs, the support plate mounting frame and the support plate body are an integral cast structure, and the inner dimensions of the reinforcing ribs match the outer dimensions of the support plate mounting frame.
[0009] Preferably, the support plate mounting frame and the fixing plate are fixed by welding.
[0010] Preferably, the positioning bolt is cooperatively connected with the positioning threaded hole.
[0011] The internal support plate of an excavator arm proposed by the utility model can bring the following beneficial effects:
[0012] 1. The reinforcing layer 1, reinforcing layer 2, vibration-damping layer and strengthening layer are arranged inside the support plate body, and the purpose of the arrangement is to increase the strength and toughness of the support plate body as a whole inside the excavator arm body. At the same time, the reinforcing ribs and the support plate body are integrally cast with the support plate mounting frame to increase the support of the support plate body inside the excavator arm body.
[0013] 2. By matching the reinforcement ribs with the external dimensions of the support plate mounting frame, the strength of the support plate mounting frame is increased while also providing good toughness for the support plate body, thereby preventing the support plate body from being deformed. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0015] In the attached figure:
[0016] Figure 1 The utility model is a schematic diagram of the overall structure of an internal support plate of an excavator arm.
[0017] Figure 2 The utility model is a bottom view of the internal support plate of an excavator arm.
[0018] Figure 3 The utility model is a schematic diagram of the internal structure of a support plate body of an internal support plate of an excavator arm.
[0019] Figure 4This is a kind of internal support plate of excavator arm Figure 1 Schematic diagram of the structure at point A in the middle.
[0020] In the figure: 1. Excavator arm body; 2. Support plate mounting bracket; 3. Support plate body; 4. Reinforcement rib; 5. Mounting plate; 6. Positioning threaded hole; 7. Locking nut; 8. Boom seat sleeve; 9. Reinforcement layer 1; 10. Reinforcement layer 2; 11. Vibration reduction layer; 12. Strengthening layer; 13. Positioning bolt; 14. Excavation fixing rod; 15. Connecting frame; 16. Connecting seat; 17. Connecting hole. DETAILED DESCRIPTION
[0021] like Figures 1 to 4 As shown, an embodiment of the present invention proposes an internal support plate of an excavator arm, including an excavator arm body 1, a support plate mounting frame 2 is overlapped on the outside of the excavator arm body 1, and a reinforcing rib 4 is fixedly connected at the inner center of the support plate mounting frame 2, and the reinforcing rib 4 is matched with the size of the outside of the support plate mounting frame 2, which increases the strength of the support plate mounting frame 2 while also providing good toughness for the support plate body 3. In this process, deformation of the support plate body 3 can be prevented, and two support plate bodies 3 are fixedly connected to the outer side of the support plate mounting frame 2, and a reinforcing layer 1 9 is provided inside the support plate body 3, and a reinforcing layer 2 10 is fixedly connected to the bottom of the reinforcing layer 2 10, and a vibration-damping layer 11 is fixedly provided at the bottom of the vibration-damping layer 11, and a strengthening layer 12 is fixedly connected to the bottom of the vibration-damping layer 11, and the reinforcing layer 1 9 and the reinforcing layer 2 10 are made of Q345 material, and have high strength, good plasticity and toughness, excellent welding performance, good corrosion resistance and fatigue resistance.
[0022] like Figure 4 As shown, a fixing plate 18 is installed at the bottom of the support plate mounting frame 2, and a mounting plate 5 is connected to the outside of the fixing plate 18. Positioning threaded holes 6 are provided in the mounting plate 5, the fixing plate 18 and the inside of the excavator arm body 1. The internal thread of the positioning threaded hole 6 is provided with a positioning bolt 13, and the external thread of the positioning bolt 13 is matched with a locking nut 7. Through the provided positioning threaded hole 6, it is convenient to fix the support plate mounting frame 2 to the inside of the excavator arm body 1 by passing the positioning bolt 13 through the positioning threaded hole 6, and finally, the position of the support plate mounting frame 2 is fixed by threading the locking nut 7 on the outside of the positioning bolt 13.
[0023] like Figure 1 As shown, a boom seat cover 8 is installed at the bottom of the excavator arm body 1, a mechanical connecting seat 16 is provided at one end of the excavator arm body 1, and a connecting hole 17 is opened inside the connecting seat 16. Two connecting frames 15 are installed at the other end of the excavator arm body 1, and an excavation fixing rod 14 is fixedly connected between the two connecting frames 15. The boom seat cover 8 at the bottom of the excavator arm body 1 serves to facilitate the connection with the arm body.
[0024] like Figure 4 As shown, the reinforcing rib 4, the support plate mounting frame 2 and the support plate body 3 are an integral cast structure. The inner dimensions of the reinforcing rib 4 match the outer dimensions of the support plate mounting frame 2. The reinforcing rib 4, the support plate body 3 and the support plate mounting frame 2 are integrally cast to increase the support of the support plate body 3 inside the excavator arm body 1.
[0025] like Figure 4 As shown, the support plate mounting frame 2 is fixed to the fixing plate 18 by welding, the positioning bolts 13 are connected in cooperation with the positioning threaded holes 6 , and the support plate mounting frame 2 is fixed inside the excavator arm body 1 by passing the positioning bolts 13 through the positioning threaded holes 6 .
[0026] Working principle:
[0027] The utility model provides the reinforcing layer 1 9, the reinforcing layer 2 10, the vibration-damping layer 11 and the strengthening layer 12 inside the support plate body 3, and the purpose of the setting is to increase the strength and toughness of the support plate body 3 as a whole inside the excavator arm body 1, to adapt to the high-strength operation of the excavator arm. At the same time, the reinforcing ribs 4 and the support plate body 3 are integrally cast and formed with the support plate mounting frame 2, thereby increasing the support of the support plate body 3 inside the excavator arm body 1. Through the provided positioning threaded holes 6, it is convenient to pass the positioning bolts 13 through the positioning threaded holes 6 to fix the support plate mounting frame 2 inside the excavator arm body 1. Finally, the lock nut 7 is threadedly sleeved on the outside of the positioning bolt 13 to fix the position of the support plate mounting frame 2. The boom seat sleeve 8 at the bottom of the excavator arm body 1 plays a role in facilitating connection with the arm body. At the same time, the reinforcing ribs 4 are matched with the dimensions of the outside of the support plate mounting frame 2, which increases the strength of the support plate mounting frame 2 while also providing good toughness for the support plate body 3. In this process, the support plate body 3 can be prevented from being deformed.
[0028] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.
[0029] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.
Claims
1. An internal support plate of an excavator arm, comprising an excavator arm body (1), characterized in that: The outside of the excavator arm body (1) is overlapped with a support plate mounting frame (2), the inner center of the support plate mounting frame (2) is fixedly connected with a reinforcing rib (4), the outer side of the support plate mounting frame (2) is fixedly connected with two support plate bodies (3), the interior of the support plate body (3) is provided with a reinforcing layer 1 (9), the bottom of the reinforcing layer 1 (9) is fixedly connected with a reinforcing layer 2 (10), the bottom of the reinforcing layer 2 (10) is fixedly provided with a vibration-damping layer (11), and the bottom of the vibration-damping layer (11) is fixedly connected with a strengthening layer (12).
2. The internal support plate of an excavator arm according to claim 1, characterized in that: A fixing plate (18) is installed at the bottom of the support plate mounting frame (2), and a mounting plate (5) is connected to the outside of the fixing plate (18). Positioning threaded holes (6) are provided inside the mounting plate (5), the fixing plate (18) and the excavator arm body (1). The internal threads of the positioning threaded holes (6) are sleeved with positioning bolts (13), and the external threads of the positioning bolts (13) are matched with locking nuts (7).
3. The internal support plate of an excavator arm according to claim 2, characterized in that: A boom seat sleeve (8) is installed at the bottom of the excavator arm body (1); a mechanical connection seat (16) is provided at one end of the excavator arm body (1); a connection hole (17) is provided inside the connection seat (16); two connection frames (15) are installed at the other end of the excavator arm body (1); an excavation fixing rod (14) is fixedly connected between the two connection frames (15).
4. The internal support plate of an excavator arm according to claim 1, characterized in that: The reinforcing rib (4), the support plate mounting frame (2) and the support plate body (3) are an integral cast structure, and the inner dimensions of the reinforcing rib (4) match the outer dimensions of the support plate mounting frame (2).
5. The internal support plate of an excavator arm according to claim 1, characterized in that: The support plate mounting frame (2) and the fixing plate (18) are fixed by welding.
6. The internal support plate of an excavator arm according to claim 2, characterized in that: The positioning bolt (13) is connected in cooperation with the positioning threaded hole (6).