Damping self-adjusting silicone oil shock absorber and engineering machinery

Abstract

The utility model discloses a damping self-adjusting silicone oil shock absorber and engineering machinery. The damping self-adjusting silicone oil shock absorber comprises an outer shell, a rubber column, a central shaft and a damping plate, wherein the outer shell is used for containing silicone oil, and the section of the outer shell is in a U shape; the rubber column is fixed to an upper end opening of the outer shell in a sealed mode; and at least one flow guide groove for adjusting damping force is formed in the inner side wall of the accommodating space for accommodating the silicone oil in the outer shell. According to the technical scheme provided by the utility model, the damping force can be automatically adjusted according to the magnitude of impact, the damping force is gradually increased along with the increase of the stroke of the damping plate when encountering large impact, and the proper damping force is automatically matched in a proper short stroke, so that the comfort can be improved.

Description

Technical Field

[0001] This utility model relates to a self-adjusting silicone oil shock absorber, belonging to the field of vehicle shock absorption. Background Technology

[0002] Silicone oil shock absorbers are commonly found at the bottom of the cab to absorb vehicle vibration energy, reducing the impact on the cab and improving comfort and handling smoothness. The silicone oil in the shock absorber can only flow between itself and the inner wall of the outer shell through a very small gap. When the intermediate shaft descends, the silicone oil in the lower chamber flows into the upper chamber through the gap between the damping plate and the outer shell, compressing the rubber. The high viscosity of silicone oil generates significant resistance when passing through small gaps; this is its damping principle. Generally, the gap between the damping plate and the outer shell in a conventional silicone oil shock absorber remains constant, thus providing a fixed damping force. If the vehicle encounters uneven road surfaces or emergency braking, the shock absorber will experience a large impact, causing the damping plate to travel downwards significantly, affecting comfort.

[0003] The prior art discloses a silicone oil shock absorber (CN201757150U), but the damping force of the silicone oil shock absorber is not adjustable. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a self-adjusting silicone oil shock absorber that can automatically adjust the damping force according to the magnitude of the impact.

[0005] This utility model is achieved according to the following technical solution:

[0006] In a first aspect, this utility model provides a self-adjusting silicone oil shock absorber, comprising a U-shaped outer shell for holding silicone oil, a rubber column sealed and fixed to the upper port of the outer shell, a central shaft passing through and fixed to the rubber column, and a damping plate arranged at the bottom of the rubber column and connected to the central shaft; the outer shell is provided with at least one guide groove on the inner side wall of the cavity containing silicone oil to adjust the damping force.

[0007] In some embodiments, the outer casing has a plurality of flow channels evenly spaced along the circumferential direction on the inner sidewall of the cavity containing silicone oil, located on the same horizontal plane.

[0008] In some embodiments, the plurality of guide channels located on the same horizontal plane are arranged evenly and alternately around the inner sidewall of the outer casing.

[0009] In some embodiments, four guide channels located on the same horizontal plane are arranged evenly and alternately around the inner sidewall of the outer casing.

[0010] In some embodiments, the guide channel is formed on the inner wall of the outer casing with the upper part being deeper and the lower part being shallower.

[0011] In some embodiments, the upper part of the guide channel has a uniform depth, while the lower part of the guide channel gradually becomes shallower from top to bottom.

[0012] In some embodiments, the lower portion of the guide channel gradually becomes shallower from top to bottom until it extends to be flush with the inner wall of the outer casing.

[0013] In some embodiments, the width of the guide channel is the same from top to bottom.

[0014] Secondly, this utility model provides an engineering machinery, including the aforementioned self-adjusting silicone oil shock absorber.

[0015] In some embodiments, the construction machinery includes an excavator.

[0016] The beneficial effects of this utility model are:

[0017] This invention provides a self-adjusting silicone oil shock absorber that can automatically adjust the damping force according to the impact magnitude. When encountering a large impact, the damping force gradually increases as the damping plate stroke increases, and the appropriate damping force is automatically matched within a suitable short stroke, thus improving comfort. Attached Figure Description

[0018] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0019] In the attached diagram:

[0020] Figure 1 This is a three-dimensional sectional view of a self-adjusting silicone oil shock absorber according to the present invention.

[0021] Figure 2 This is a planar sectional view of a self-adjusting silicone oil shock absorber according to the present invention.

[0022] Figure 3 This is a planar sectional view of the outer shell of this utility model.

[0023] Attached diagram labels: 1-Guide channel, 2-Rubber column, 3-Outer shell, 4-Accommodation space, 5-Damping plate, 6-Oil storage space, 7-Tube reinforcing member, 8-Central shaft.

[0024] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0026] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "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.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] like Figure 1 , Figure 2 As shown, a silicone oil shock absorber includes a U-shaped outer shell 3 containing silicone oil 4, a rubber column 2 sealed and fixed to the upper port of the outer shell 3, and a damping plate 5 located at the bottom of the rubber column 2. An oil storage space 6 is provided between the upper surface of the damping plate 5 and the bottom surface of the rubber column 2. This oil storage space 6 is formed by an annular groove on the bottom surface of the rubber column 2. A central shaft 8 is provided through the center of the rubber column 2. The top of the central shaft 8 is provided with a mounting shaft for connecting to the floor of the engineering machinery cab, and the bottom end of the central shaft 8 is connected to the damping plate 5. A tubular reinforcing member 7 is provided inside the rubber column 2 near its outer peripheral wall. The top of the tubular reinforcing member 7 is folded outward to extend beyond the outer peripheral wall of the rubber column 2 and is fixed to the upper port of the outer shell 3. The silicone oil shock absorber described above is a common existing silicone oil shock absorber structure, and its damping force is not adjustable.

[0029] Therefore, as Figure 1 , Figure 2 , Figure 3As shown, this utility model provides a self-adjusting silicone oil shock absorber. To achieve the effect of gradually increasing damping, the flow rate of silicone oil around the damping plate is essentially reduced. A specific improved implementation scheme is as follows: the outer casing has at least one guide groove 1 on the inner wall of the silicone oil-containing space 4 to adjust the damping force.

[0030] Further plans will continue to be considered. Figure 1 , Figure 2 , Figure 3 As shown, the outer shell 3 has multiple guide channels 1 evenly spaced along the circumference on the inner side wall of the cavity 4 containing silicone oil, located on the same horizontal plane.

[0031] Further plans will continue to be considered. Figure 1 , Figure 2 , Figure 3 As shown, multiple guide channels 1 located on the same horizontal plane are evenly and alternately arranged around the inner sidewall of the outer shell 3.

[0032] In a preferred embodiment, four guide channels 1 are arranged evenly and alternately around the inner sidewall of the outer shell 3, located on the same horizontal plane.

[0033] It should be noted that in actual design, it is not limited to the four guide channels mentioned above; it can also be designed with three or five guide channels.

[0034] Further plans will continue to be considered. Figure 1 , Figure 2 , Figure 3 As shown, the guide channel 1 is formed on the inner wall of the outer shell 3 with the upper part being deeper and the lower part being shallower.

[0035] Further plans will continue to be considered. Figure 1 , Figure 2 , Figure 3 As shown, the upper part of the guide channel 1 has a uniform depth, while the lower part of the guide channel 1 gradually becomes shallower from top to bottom.

[0036] Further plans will continue to be considered. Figure 1 , Figure 2 , Figure 3 As shown, the lower part of the guide channel 1 gradually becomes shallower from top to bottom until it extends to be flush with the inner wall of the outer shell 3.

[0037] Further plans will continue to be considered. Figure 1 , Figure 2 , Figure 3 As shown, the width of the guide channel 1 is the same from top to bottom.

[0038] In summary, this invention provides a self-adjusting silicone oil shock absorber structure that can automatically adjust the damping force according to the magnitude of the impact. When encountering a large impact, the damping force gradually increases as the damping plate stroke increases, automatically matching an appropriate damping force within a suitable short stroke, thus improving comfort.

[0039] The following describes the engineering machinery provided by this utility model. The engineering machinery described below can be referred to in correspondence with the damping self-adjusting silicone oil shock absorber described above.

[0040] The present invention provides an engineering machinery that may include a self-adjusting silicone oil shock absorber as described in any of the above embodiments.

[0041] The beneficial effects achieved by the engineering machinery provided by this utility model are consistent with the beneficial effects achieved by the self-adjusting silicone oil shock absorber provided by this utility model, so they will not be repeated here.

[0042] It should be noted that the aforementioned construction machinery can be excavators.

[0043] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0044] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A self-adjusting silicone oil shock absorber, comprising a U-shaped outer shell for holding silicone oil, a rubber column sealed and fixed to the upper port of the outer shell, a central shaft passing through and fixed to the rubber column, and a damping plate arranged at the bottom of the rubber column and connected to the central shaft; characterized in that: The outer casing has at least one guide groove on the inner wall of the cavity containing silicone oil to adjust the damping force.

2. The self-adjusting silicone oil shock absorber according to claim 1, characterized in that: The outer casing has multiple guide channels evenly spaced along the circumference on the inner wall of the cavity containing silicone oil, located on the same horizontal plane.

3. The self-adjusting silicone oil shock absorber according to claim 2, characterized in that: The multiple guide channels located on the same horizontal plane are arranged evenly and alternately around the inner sidewall of the outer shell.

4. The self-adjusting silicone oil shock absorber according to claim 3, characterized in that: Four flow channels located on the same horizontal plane are evenly and alternately arranged around the inner sidewall of the outer shell.

5. A self-adjusting silicone oil shock absorber according to claim 1, characterized in that: The guide channel is formed on the inner wall of the outer shell in a manner where the upper part is deeper and the lower part is shallower.

6. A self-adjusting silicone oil shock absorber according to claim 5, characterized in that: The upper part of the guide channel has a uniform depth, while the lower part of the guide channel gradually becomes shallower from top to bottom.

7. A self-adjusting silicone oil shock absorber according to claim 6, characterized in that: The lower part of the guide channel gradually becomes shallower from top to bottom until it extends to be flush with the inner wall of the outer shell.

8. A self-adjusting silicone oil shock absorber according to claim 1, characterized in that: The width of the guide channel is the same from top to bottom.

9. An engineering machinery, characterized in that: Including the self-adjusting silicone oil shock absorber according to any one of claims 1 to 8.

10. An engineering machinery according to claim 9, characterized in that: The construction machinery includes excavators.

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