Excavator with shock absorption and noise reduction mechanism

Abstract

The utility model relates to the technical field of shock absorption and noise reduction mechanisms, in particular to an excavator with a shock absorption and noise reduction mechanism, a cab shell is mounted on the rear side of the upper portion of an excavator body, a base is mounted in the middle of the upper portion of the excavator body, a shock absorption damping rod is hinged to the upper portion of the base, and a movable seat is hinged to the upper portion of the shock absorption damping rod. A rubber sleeve is mounted on the lower side of the periphery of the movable seat; the excavator has the beneficial effects that when an excavator body works, vibration can be transmitted to a cab, the vibration is transmitted to the damping rods through the base, the vibration amplitude and frequency are preliminarily weakened through stretching and retracting of the multiple sets of damping rods, and the rubber sleeves protect the internal damping rods against external influences; the movable seat and the connecting seat are connected through the air bag, the air bag can well absorb vibration, the spring rod limits the movement range of the connecting seat under the influence of vibration, and when the connecting seat collides with the movable seat under the influence of vibration, the rubber pad can effectively absorb vibration and reduce noise.

Description

Excavators equipped with vibration and noise reduction mechanisms Technical Field

[0001] This utility model relates to the field of vibration reduction and noise reduction mechanisms, specifically to an excavator equipped with a vibration reduction and noise reduction mechanism. Background Technology

[0002] An excavator, also known as a digging machine or excavator, is an earthmoving machine that uses a bucket to excavate materials above or below the machine's bearing surface and load them into transport vehicles or unload them at a stockpile. The materials excavated by excavators are mainly soil, coal, silt, and pre-loosened soil and rock. In recent years, the development of construction machinery has been relatively rapid, and excavators have become one of the most important types of construction machinery. The three most important parameters of an excavator are: operating weight, engine power, and bucket capacity. Excavators generate high-frequency vibrations and significant noise during operation, which can be harmful to operators during extended periods. Therefore, excavators equipped with vibration and noise reduction mechanisms are necessary. Summary of the Invention

[0003] The purpose of this invention is to provide an excavator equipped with a vibration reduction and noise reduction mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a cab shell is installed on the upper rear side of the excavator body, the base is installed in the upper middle part of the excavator body, and a shock-absorbing damping rod is hinged on the upper part of the base, a movable seat is hinged on the upper part of the shock-absorbing damping rod, and a rubber sleeve is installed on the lower outer periphery of the movable seat.

[0005] Preferably, a spring rod is installed on the upper outer periphery of the movable seat, and the spring rod is hinged to the movable seat, the spring rod limiting the range of motion of the connecting seat under the influence of vibration.

[0006] Preferably, an airbag is installed above the movable seat, and a connecting seat is installed above the airbag. The movable seat and the connecting seat are connected by the airbag, which can effectively absorb vibration.

[0007] Preferably, a rubber pad is installed on the lower periphery of the connecting seat, and the rubber pad is bonded to the connecting seat. When the connecting seat collides with the movable seat under the influence of vibration, the rubber pad can effectively reduce vibration and noise.

[0008] Preferably, a seat is installed above the connecting seat, and a cushion is installed above the seat. The cushion on the seat improves comfort and can also absorb some vibration.

[0009] Preferably, a shock-absorbing and noise-reducing component is installed on the inner side of the cab shell, and the shock-absorbing and noise-reducing component is bonded to the cab shell.

[0010] Preferably, the vibration damping and noise reduction component includes a damping sound insulation composite panel and a honeycomb structure composite panel, and the honeycomb structure composite panel is bonded to the inner side of the damping sound insulation composite panel. The damping sound insulation composite panel achieves sound insulation and noise reduction through molecular friction and energy dissipation, while dispersing vibration energy and reducing impact transmission rate. The honeycomb structure composite panel absorbs sound waves and blocks heat transfer, and has the advantages of being lightweight (low density), having high compressive strength and deformation resistance.

[0011] Preferably, the vibration damping and noise reduction component further includes a fiber-based vibration damping and sound insulation board and an interior layer. The inner side of the honeycomb structure composite board is bonded with a fiber-based vibration damping and sound insulation board, and the inner side of the fiber-based vibration damping and sound insulation board is bonded with an interior layer. The fiber-based vibration damping and sound insulation board achieves the dual effects of sound insulation and vibration reduction through a multi-layer composite design. The interior layer is a fabric structure, and the plush surface can effectively absorb noise.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: When the excavator body is working, the vibration is transmitted to the cab. The vibration is transmitted to the damping rod through the base. The extension and retraction of multiple sets of damping rods initially reduces the vibration amplitude and frequency. The rubber sleeve protects the internal damping rod from external influences. When the vibration is transmitted to the movable seat, the movable seat and the connecting seat are connected by an airbag. The airbag can effectively absorb the vibration. The spring rod limits the range of motion of the connecting seat under the influence of vibration, minimizing the impact of high-frequency vibration of the excavator body on the operator. The damping and sound insulation composite board achieves sound insulation and noise reduction through molecular friction and energy dissipation, while dispersing vibration energy and reducing the impact transmission rate. The honeycomb structure composite board absorbs sound waves and blocks heat transfer, and has the advantages of being lightweight (low density), high compressive strength and deformation resistance. The fiber-based vibration damping and sound insulation board achieves the dual effects of sound insulation and vibration reduction through multi-layer composite design. The interior layer is a fabric structure, and the plush surface can effectively absorb noise.

[0013] This utility model proposes an excavator equipped with a vibration reduction and noise reduction mechanism. Attached Figure Description

[0014] Figure 1 is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 is a partial three-dimensional cross-sectional view of the connecting seat of this utility model;

[0016] Figure 3 is a partial three-dimensional cross-sectional view of the cab shell of this utility model.

[0017] In the diagram: 1. Excavator body; 2. Cab shell; 3. Vibration damping and noise reduction components; 301. Damping sound insulation composite panel; 302. Honeycomb structure composite panel; 303. Fiber-based vibration damping and sound insulation panel; 304. Interior layer; 4. Base; 5. Rubber sleeve; 6. Vibration damping rod; 7. Movable seat; 8. Airbag; 9. Spring rod; 10. Rubber pad; 11. Connecting seat; 12. Seat; 13. Soft pad. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example 1

[0020] Please refer to Figures 1-3. This utility model provides a technical solution: A cab shell 2 is installed on the upper rear side of the excavator body 1. A base 4 is installed on the upper middle part of the excavator body 1, and a shock-absorbing damping rod 6 is hinged to the upper part of the base 4. A movable seat 7 is hinged to the upper part of the shock-absorbing damping rod 6. A rubber sleeve 5 is installed on the lower outer periphery of the movable seat 7. A spring rod 9 is installed on the upper outer periphery of the movable seat 7, and the spring rod 9 is hinged to the movable seat 7. An airbag 8 is installed on the upper part of the movable seat 7, and a connecting seat 11 is installed on the upper part of the airbag 8. A rubber pad 10 is installed on the lower outer periphery of the connecting seat 11, and the rubber pad 10 is bonded to the connecting seat 11. A seat 12 is installed on the upper part of the connecting seat 11, and a soft cushion 13 is installed on the upper part of the seat 12. When the excavator body 1 is working, the vibration is transmitted to the cab. The vibration is transmitted to the damping rod 6 through the base 4. The extension and retraction of multiple sets of damping rods 6 initially reduces the vibration amplitude and frequency. The rubber sleeve 5 protects the internal damping rod 6 from external influences. When the vibration is transmitted to the movable seat 7, the movable seat 7 and the connecting seat 11 are connected by the airbag 8. The airbag 8 can effectively absorb the vibration. The spring rod 9 limits the range of motion of the connecting seat 11 under the influence of vibration. When the connecting seat 11 collides with the movable seat 7 under the influence of vibration, the rubber pad 10 can effectively reduce vibration and noise. The soft pad 13 on the seat 12 improves comfort and can also absorb some vibration, minimizing the impact of the high-frequency vibration of the excavator body 1 on the operator.

[0021] Example 2

[0022] Based on Embodiment 1, a vibration damping and noise reduction component 3 is installed on the inner side of the cab shell 2, and the vibration damping and noise reduction component 3 is bonded to the cab shell 2. The vibration damping and noise reduction component 3 includes a damping sound insulation composite panel 301 and a honeycomb structure composite panel 302, and the honeycomb structure composite panel 302 is bonded to the inner side of the damping sound insulation composite panel 301. The vibration damping and noise reduction component 3 also includes a fiber-based vibration damping and sound insulation panel 303 and an interior trim layer 304. The fiber-based vibration damping and sound insulation panel 303 is bonded to the inner side of the honeycomb structure composite panel 302, and the interior trim layer 304 is bonded to the inner side of the fiber-based vibration damping and sound insulation panel 303. When the cab is affected by vibration, the damping sound insulation composite panel 301 achieves sound insulation and noise reduction through molecular friction and energy dissipation, while dispersing vibration energy and reducing impact transmission rate. The honeycomb structure composite panel 302 absorbs sound waves and blocks heat transfer, and has the advantages of being lightweight, low density, high compressive strength and deformation resistance. The fiber-based vibration damping and sound insulation panel 303 achieves the dual effects of sound insulation and vibration reduction through multi-layer composite design. The interior layer 304 is a fabric structure, and the plush surface can effectively absorb noise. Through the combination of various composite panels, noise reduction, vibration reduction and heat insulation are maximized to ensure that the interior of the cab maintains a relatively comfortable environment.

[0023] In actual use, the vibration of the excavator body 1 is transmitted to the cab during operation. The vibration is then transmitted to the damping rods 6 via the base 4. The extension and retraction of multiple damping rods 6 initially reduces the amplitude and frequency of the vibration. The rubber sleeve 5 protects the internal damping rods 6 from external influences. When the vibration is transmitted to the movable seat 7, the movable seat 7 and the connecting seat 11 are connected by an airbag 8. The airbag 8 can effectively absorb the vibration. The spring rod 9 limits the range of motion of the connecting seat 11 under the influence of vibration. When the connecting seat 11 collides with the movable seat 7 under the influence of vibration, the rubber pad 10 can effectively reduce vibration and noise. The soft pad 13 on the seat 12 improves comfort and also absorbs some vibration, with a maximum... To minimize the impact of high-frequency vibrations from the excavator body 1 on the operator, when the cab is affected by vibration, the damping sound insulation composite panel 301 achieves sound insulation and noise reduction through molecular friction and energy dissipation, while dispersing vibration energy and reducing impact transmission rate. The honeycomb structure composite panel 302 absorbs sound waves and blocks heat transfer, and has the advantages of being lightweight, low density, high compressive strength and deformation resistance. The fiber-based vibration damping and sound insulation panel 303 achieves the dual effects of sound insulation and vibration reduction through multi-layer composite design. The interior layer 304 is a fabric structure, and the plush surface can effectively absorb noise. Through the combination of various composite panels, noise reduction, vibration reduction and heat insulation are maximized to ensure a relatively comfortable environment inside the cab.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An excavator equipped with a vibration damping and noise reduction mechanism, characterized in that: The excavator equipped with a shock absorption and noise reduction mechanism includes an excavator body (1) and a base (4). The excavator body (1) has a cab shell (2) installed on the upper rear side. The base (4) is installed in the upper middle part of the excavator body (1). A shock absorption damping rod (6) is hinged to the upper part of the base (4). A movable seat (7) is hinged to the upper part of the shock absorption damping rod (6). A rubber sleeve (5) is installed on the lower outer periphery of the movable seat (7).

2. The excavator with a vibration damping and noise reduction mechanism according to claim 1, characterized in that: A spring rod (9) is installed on the upper outer periphery of the movable seat (7), and the spring rod (9) is hinged to the movable seat (7).

3. The excavator with a vibration damping and noise reduction mechanism according to claim 1, characterized in that: An airbag (8) is installed above the movable seat (7), and a connecting seat (11) is installed above the airbag (8).

4. The excavator with a vibration damping and noise reduction mechanism according to claim 3, characterized in that: A rubber pad (10) is installed on the lower periphery of the connecting seat (11), and the rubber pad (10) is bonded to the connecting seat (11).

5. The excavator with a vibration damping and noise reduction mechanism according to claim 3, characterized in that: A seat (12) is installed above the connecting seat (11), and a cushion (13) is installed above the seat (12).

6. The excavator with a vibration damping and noise reduction mechanism according to claim 1, characterized in that: The inner side of the cab shell (2) is equipped with a shock-absorbing and noise-reducing component (3), and the shock-absorbing and noise-reducing component (3) is bonded to the cab shell (2).

7. The excavator with a vibration damping and noise reduction mechanism according to claim 6, characterized in that: The vibration damping and noise reduction component (3) includes a damping sound insulation composite plate (301) and a honeycomb structure composite plate (302), and the honeycomb structure composite plate (302) is bonded to the inner side of the damping sound insulation composite plate (301).

8. The excavator with a vibration damping and noise reduction mechanism according to claim 7, characterized in that: The vibration damping and noise reduction component (3) further includes a fiber-based vibration damping and sound insulation board (303) and an interior layer (304). The inner side of the honeycomb structure composite board (302) is bonded with the fiber-based vibration damping and sound insulation board (303), and the inner side of the fiber-based vibration damping and sound insulation board (303) is bonded with the interior layer (304).

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