An excavator frame with a collision protection structure
By installing rubber plates, dampers, and guide structures on the excavator frame, the problem of frame damage was solved, achieving protection and anti-slip effects, and improving the frame's durability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU FRONT ENG MASCH CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-30
AI Technical Summary
Existing excavator frames are easily damaged by collisions during use and lack effective protective structures.
A protective structure, including rubber plates, dampers, and springs, is installed on the excavator frame. The rubber plates and dampers provide elastic cushioning, and the dampers convert kinetic energy into heat energy. Combined with guide and anti-slip structures, this prevents the rotating disk from shifting and increases friction, thereby reducing collision damage.
It effectively prevents the frame from being damaged by collisions, increases the anti-slip properties of the bracket, reduces the offset of the swivel plate, and improves the durability and safety of the frame.
Smart Images

Figure CN224431537U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of excavator parts technology, and in particular to an excavator frame with an anti-collision structure. Background Technology
[0002] An excavator is an earthmoving machine that uses a bucket to dig materials above or below the machine's bearing surface and load them into transport vehicles or unload them into a stockpile. The materials excavated by excavators are mainly soil, coal, silt, and pre-loosened soil and rock. When installing an excavator, a frame is required. The excavator frame is an important component of the excavator, and its main function is to support the weight of the excavator. Excavator frames are usually made of high-strength steel to ensure sufficient strength and durability.
[0003] To address this issue, patent publication CN211816561U discloses a crash beam and excavator frame, relating to the field of engineering machinery technology. The crash beam includes a body with an opening; the body includes an upper support surface and a side support surface, a portion of the side support surface protruding from the upper support surface and extending upwards, forming a standing area between the protruding portion of the side support surface and the upper support surface; the upper edge of the protruding portion of the side support surface and / or the upper support surface are provided with an anti-slip structure. This excavator frame includes a crash beam. This crash beam solves the technical problem in existing excavator crash beams that are relatively smooth and inconvenient for people to stand on.
[0004] The aforementioned anti-collision side beam and excavator frame propose to solve the technical problem that the existing excavator anti-collision beam is relatively smooth and not convenient for people to stand on. However, the frame may be subject to collisions during use, and the frame may be damaged, affecting the use of the frame. Utility Model Content
[0005] The purpose of this invention is to provide an excavator frame with an anti-collision structure to solve the problem that existing excavator frames are difficult to protect.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an excavator frame with an anti-collision structure, including a base plate;
[0007] The top of the base plate has grooves on both sides, and a support rod is installed inside the grooves. A rotating shaft is installed at the middle position of the top of the base plate.
[0008] A rotating disk is installed at the top of the rotating shaft, and brackets are installed on both sides of the base plate. Protective structures are installed on both sides of the brackets.
[0009] The protective structure includes rubber plates installed on both sides of the bracket, a damper installed on one side of the rubber plate, a hydraulic cylinder on one side of the damper, a piston rod installed on one side of the hydraulic cylinder, and a spring installed on one side of the rubber plate.
[0010] In use, the rotating disk can first rotate along the axis. When the rotating disk rotates, the guide rod at the bottom can slide along the guide groove. The ball at the bottom of the guide rod can rotate, and the ball makes the guide rod move more smoothly. The guide rod and the guide groove work together to guide the rotation of the rotating disk and prevent the rotating disk from tilting or deviating when rotating. The spring and rubber plate can buffer the impact force on the frame and prevent the frame from being damaged due to collision.
[0011] Furthermore, through holes are provided on both sides of the bracket, and the through holes are symmetrically distributed about the central axis of the bracket, allowing for the installation of various rods.
[0012] Furthermore, an anti-slip structure is installed at the bottom of the bracket. The anti-slip structure includes a rubber pad installed at the bottom of the bracket, and an anti-slip pad installed at the bottom of the rubber pad. The protective structure can enhance the friction of the bracket.
[0013] Furthermore, the bottom end of the anti-slip pad is provided with teeth, which are arranged at equal intervals at the bottom end of the anti-slip pad. The teeth can enhance the friction of the anti-slip pad.
[0014] Furthermore, the spring is helical in shape, and the spring and the rubber plate form an elastic connection, giving the spring elasticity.
[0015] Furthermore, a guide structure is installed at the bottom of the rotating disk. The guide structure includes a guide groove installed at the top of the base plate, a guide rod installed at the bottom of the rotating disk, and a ball bearing installed at the bottom of the guide rod. The guide structure can guide the rotation of the rotating disk.
[0016] Furthermore, the outer diameter of the guide rod is smaller than the inner diameter of the guide groove, and the guide rod and the guide groove form a sliding structure, allowing the guide rod to slide inside the guide groove.
[0017] The excavator frame with anti-collision structure provided by this utility model has the following advantages: during use, the protective structure can protect the frame and prevent damage to the frame due to collision; the guide structure can prevent the rotating disk from shifting during rotation; and the anti-slip structure can enhance the anti-slip performance of the support.
[0018] By installing rubber plates on both sides of the support frame, the rubber plates are trapezoidal in shape. The springs and dampers on one side of the rubber plates are elastic, and the rubber plates are also made of elastic rubber material. When an object hits the frame, the elasticity of the rubber plates, dampers, and springs can buffer the impact force on the frame and prevent damage to the frame due to the collision. The damper is composed of a hydraulic cylinder or piston rod. Its working principle is that the reciprocating motion of the piston rod in the hydraulic cylinder drives the internal damping medium to flow, producing a damping effect, thereby converting kinetic energy into heat energy, achieving the purpose of energy dissipation and shock absorption, thus making it easier to protect the excavator frame.
[0019] By installing rubber pads at the bottom of the support frame, the elasticity of the rubber material provides shock absorption, while the anti-slip pads at the bottom enhance the anti-slip properties of the support frame. The anti-slip pads have fine teeth at the bottom, which increases the friction and enhances the anti-slip properties. In this way, the support frame can be less prone to slippage during installation and placement, thereby achieving the goal of improving the anti-slip properties of the excavator frame. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0021] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;
[0022] Figure 3 For the present utility model Figure 1 Enlarged cross-sectional view of a portion of point A in the middle section;
[0023] Figure 4 This is a partial three-dimensional structural diagram of the anti-slip structure of this utility model;
[0024] Figure 5 This is a partial three-dimensional structural diagram of the guide structure of this utility model.
[0025] The following are the annotations in the diagram: 1. Base plate; 2. Bracket; 3. Through hole; 4. Anti-slip structure; 401. Rubber pad; 402. Anti-slip pad; 403. Clamping tooth; 5. Protective structure; 501. Rubber plate; 502. Spring; 503. Damper; 504. Hydraulic cylinder; 505. Piston rod; 6. Groove; 7. Support rod; 8. Rotary disk; 9. Guide structure; 901. Guide groove; 902. Guide rod; 903. Ball bearing; 10. Rotating shaft. Detailed Implementation
[0026] 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.
[0027] Please see Figures 1-5 One embodiment of this utility model is an excavator frame with an anti-collision structure, including a base plate 1.
[0028] The top of the base plate 1 has grooves 6 on both sides, and a support rod 7 is installed inside the grooves 6. A rotating shaft 10 is installed at the middle position of the top of the base plate 1.
[0029] A rotating disk 8 is installed at the top of the rotating shaft 10, and a guide structure 9 is installed at the bottom of the rotating disk 8. The guide structure 9 includes a guide groove 901 installed at the top of the base plate 1, and a guide rod 902 installed at the bottom of the rotating disk 8. The outer diameter of the guide rod 902 is smaller than the inner diameter of the guide groove 901. The guide rod 902 and the guide groove 901 form a sliding structure. A ball bearing 903 is installed at the bottom of the guide rod 902.
[0030] See attached document Figure 1-2 and attached Figure 5 As shown, the rotating disk 8 can rotate along the rotating shaft 10. The guide rod 902 and the guide groove 901 form a sliding structure. When the rotating disk 8 rotates, the guide rod 902 at the bottom can slide along the guide groove 901. The ball 903 at the bottom of the guide rod 902 can rotate. The ball 903 makes the guide rod 902 move more smoothly. The guide rod 902 and the guide groove 901 work together to guide the rotation of the rotating disk 8 and prevent the rotating disk 8 from tilting or deviating when rotating.
[0031] A bracket 2 is installed on both sides of the base plate 1. A through hole 3 is provided on both sides of the bracket 2. The through holes 3 are symmetrically distributed about the central axis of the bracket 2.
[0032] The bottom of the bracket 2 is equipped with an anti-slip structure 4. The anti-slip structure 4 includes a rubber pad 401 installed at the bottom of the bracket 2, an anti-slip pad 402 installed at the bottom of the rubber pad 401, and a locking tooth 403 provided at the bottom of the anti-slip pad 402. The locking teeth 403 are arranged at equal intervals at the bottom of the anti-slip pad 402.
[0033] See attached document Figure 1 and attached Figure 4As shown, the rubber pad 401 is elastic, and the elasticity of the rubber material has a certain shock absorption property. At the same time, the anti-slip pad 402 at the bottom can enhance the anti-slip property of the bracket 2. The bottom of the anti-slip pad 402 is provided with fine teeth 403, which can make the friction of the anti-slip pad 402 stronger and make the anti-slip pad 402 stronger. In this way, the bracket 2 can reduce the occurrence of slippage when it is installed and placed.
[0034] Protective structures 5 are installed on both sides of the bracket 2. The protective structures 5 include rubber plates 501 installed on both sides of the bracket 2. A damper 503 is installed on one side of the rubber plate 501. A hydraulic cylinder 504 is installed on one side of the damper 503. A piston rod 505 is installed on one side of the hydraulic cylinder 504. A spring 502 is installed on one side of the rubber plate 501. The spring 502 is spiral in shape. The spring 502 and the rubber plate 501 form an elastic connection.
[0035] See attached document Figure 1-3 As shown, the rubber plate 501 is trapezoidal in shape. The spring 502 and damper 503 on one side of the rubber plate 501 are elastic. The rubber plate 501 is also made of elastic rubber material. When an object hits the frame, due to the elasticity of the rubber plate 501, damper 503 and spring 502, the spring 502 and rubber plate 501 can buffer the impact force on the frame and prevent the frame from being damaged due to the collision. The damper 503 is composed of a hydraulic cylinder 504 or a piston rod 505. Its working principle is that the reciprocating motion of the piston rod 505 in the hydraulic cylinder 504 drives the internal damping medium to flow, producing a damping effect, thereby converting kinetic energy into heat energy and achieving the purpose of energy dissipation and shock absorption.
[0036] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. An excavator frame with a collision protection structure, including a base plate (1); Its features are: The bottom plate (1) has grooves (6) on both sides of its top end, and a support rod (7) is installed inside the groove (6). A rotating shaft (10) is installed at the middle position of the top end of the bottom plate (1). A rotating disk (8) is installed at the top of the rotating shaft (10), and brackets (2) are installed on both sides of the base plate (1). Protective structures (5) are installed on both sides of the brackets (2). The protective structure (5) includes rubber plates (501) installed on both sides of the bracket (2), a damper (503) installed on one side of the rubber plate (501), a hydraulic cylinder (504) on one side of the damper (503), a piston rod (505) installed on one side of the hydraulic cylinder (504), and a spring (502) installed on one side of the rubber plate (501).
2. The excavator undercarriage with anti-collision structure according to claim 1, characterized in that: Both sides of the bracket (2) are provided with through holes (3), and the through holes (3) are symmetrically distributed about the central axis of the bracket (2).
3. The excavator undercarriage with anti-collision structure of claim 1, wherein: The bottom end of the bracket (2) is equipped with an anti-slip structure (4), the anti-slip structure (4) includes a rubber pad (401) installed at the bottom end of the bracket (2), and an anti-slip pad (402) installed at the bottom end of the rubber pad (401).
4. The excavator undercarriage with anti-collision structure of claim 3, wherein: The bottom end of the anti-slip mat (402) is provided with locking teeth (403), and the locking teeth (403) are arranged at equal intervals at the bottom end of the anti-slip mat (402).
5. The excavator undercarriage with anti-collision structure of claim 1, wherein: The spring (502) is spiral in shape, and the spring (502) and the rubber plate (501) form an elastic connection.
6. The excavator undercarriage with anti-collision structure of claim 1, wherein: The bottom end of the rotating disk (8) is equipped with a guide structure (9). The guide structure (9) includes a guide groove (901) installed at the top end of the base plate (1). The guide structure (9) includes a guide rod (902) installed at the bottom end of the rotating disk (8), and a ball bearing (903) installed at the bottom end of the guide rod (902).
7. The excavator undercarriage with anti-collision structure of claim 6, wherein: The outer diameter of the guide rod (902) is smaller than the inner diameter of the guide groove (901), and the guide rod (902) and the guide groove (901) form a sliding structure.