CN214367449U - Bidirectional damping buffer device - Google Patents
Bidirectional damping buffer device Download PDFInfo
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- CN214367449U CN214367449U CN202120635017.XU CN202120635017U CN214367449U CN 214367449 U CN214367449 U CN 214367449U CN 202120635017 U CN202120635017 U CN 202120635017U CN 214367449 U CN214367449 U CN 214367449U
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Abstract
The utility model provides a two-way damping buffer, comprising a cylinder body, first piston assembly, second piston assembly and elastic component, the cylinder body includes the barrel, hold the chamber, first cylinder cap and second cylinder cap, first piston assembly includes first piston and first piston rod, second piston assembly includes second piston and second piston rod, the elastic component sets up and puts and be located first piston in the central point that holds the chamber, between the second piston, in this application, the cylinder body wholly is the tube-shape, it has viscous damping fluid to hold to fill in the chamber, the elastic component sets up and will hold the chamber and cut apart into two independent and symmetrical cavitys in holding the chamber, and can produce the limiting displacement to the piston, avoid piston transitional movement. The elastic part has elastic modulus, receives the deformation that external force effect can produce certain extent to form cushioning effect to the piston. The elastic piece is positioned in the center of the containing cavity, so that the whole device is uniform and symmetrical, and the use is safe and stable.
Description
Technical Field
The application relates to the technical field of buffering equipment, in particular to a bidirectional damping buffering device.
Background
Common viscous damper is hydraulic cylinder formula, discloses a novel adjustable, anti-overloading viscous damper in application number 201720429570.1's patent, and this damper includes cylinder body, cylinder cap, piston rod and piston, still overlaps respectively on the piston rod of piston both sides and has a clearance adjustment dish spring and an overload buffering dish spring, not only has adjustable, anti-overloading function, simple structure moreover, and the equipment is convenient, and the operation is reliable. However, the expansion or compression range of the damper is limited, the damper can only be adjusted in a single direction, the application range is relatively small, and particularly, the use requirement of people cannot be met on occasions needing bidirectional buffer control.
SUMMERY OF THE UTILITY MODEL
The present application provides a bi-directional damping buffer device to solve at least one of the above technical problems.
The technical scheme adopted by the application is as follows:
a bidirectional damping buffer device comprises a buffer body,
the cylinder body comprises a cylinder body, an accommodating cavity, a first cylinder cover and a second cylinder cover, wherein the first cylinder cover and the second cylinder cover are respectively arranged at two ends of the accommodating cavity;
the first piston assembly comprises a first piston and a first piston rod, the first piston is arranged in the accommodating cavity, and the first piston rod penetrates through the first cylinder cover to be connected with the first piston and drives the first piston to slide in the accommodating cavity;
the second piston assembly comprises a second piston and a second piston rod, the second piston is arranged in the accommodating cavity and is opposite to the first piston, and the second piston penetrates through the second cylinder cover to be connected with the second piston and drives the second piston to slide in the accommodating cavity;
the elastic piece is arranged at the central position of the accommodating cavity and located between the first piston and the second piston, a first damping chamber is formed between the elastic piece and the first piston, a second damping chamber is formed between the elastic piece and the second piston, a third damping chamber is formed between the first piston and the first cylinder cover, and a fourth damping chamber is formed between the second piston and the second cylinder cover.
Further, the elastic piece is an oil-resistant rubber block.
Furthermore, the outer diameter of the elastic part is slightly larger than the inner diameter of the accommodating cavity, a groove matched with the elastic part is formed in the cavity wall of the central position of the accommodating cavity, and the elastic part is fixed in the groove.
Furthermore, one side of the first piston, which faces the first cylinder cover, is provided with a first overload buffering disc spring, and one side of the second piston, which faces the second cylinder cover, is provided with a second overload buffering disc spring.
Further, the periphery of first piston with the second piston evenly is provided with a plurality of depressed parts, the depressed part with the inner wall of holding the chamber forms the oil clearance.
Further, a first sealing element is arranged between the first piston rod and the first cylinder cover, and a second sealing element is arranged between the second piston rod and the second cylinder cover.
Further, the first seal and the second seal are flood plug seals.
Further, the first cylinder cover and the second cylinder cover are provided with oil filling holes.
Further, the first cylinder cover and the second cylinder cover are fixedly connected with the cylinder body through connecting bolts.
Due to the adoption of the technical scheme, the beneficial effects obtained by the application are as follows:
in this application, the cylinder body is whole to be the tube-shape, and first cylinder cap and second cylinder cap are sealed in the both ends that hold the chamber, and it has viscous damping liquid to hold to fill in the chamber, and the elastic component sets up and will hold the chamber and cut apart into two independent and symmetrical cavitys in holding the chamber to can produce the limiting action to the piston, avoid piston transition to remove. The elastic part has elastic modulus, receives the deformation that external force effect can produce certain extent to form cushioning effect to the piston. The elastic piece is positioned in the center of the containing cavity, so that the whole device is uniform and symmetrical, and the use is safe and stable. The damping buffer device has a bidirectional buffer function, the first piston and the second piston can slide independently or simultaneously, and when one piston slides to the elastic part, the other piston can also move relative to the cylinder body, so that the overall buffer range of the device is greatly increased. And the elastic component not only can play the limiting action to the piston, can also play the cushioning effect to the piston, makes the flexible contact between piston and the elastic component, avoids the piston to produce the damage, effectively improves the life of device.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a bidirectional damping buffer device provided in the present application.
Fig. 2 is a schematic structural diagram of a first/second piston in the bidirectional damping buffer device in fig. 1.
Wherein, 1-cylinder body; 2-a first cylinder head; 3-a second cylinder cover; 4-a first piston; 5-a first piston rod; 6-a second piston; 7-a second piston rod; 8-an elastic member; 9-a first damping chamber; 10-a second damping chamber; 11-a third damping chamber; 12-a fourth damping chamber; 13-a groove; 14-a first overload damping disc spring; 15-a second overload buffering disc spring; 16-a recess; 17-oil passing clearance; 18-a first seal; 19-a second seal; 20-oil filler hole; 21-connecting bolt.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
In addition, in the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the positional or orientational relationship shown in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1 and 2, the present application provides a bidirectional damping buffer device, comprising,
the cylinder body comprises a cylinder body 1, an accommodating cavity, a first cylinder cover 2 and a second cylinder cover 3, wherein the first cylinder cover and the second cylinder cover are respectively arranged at two ends of the accommodating cavity;
the first piston 4 assembly comprises a first piston 4 and a first piston rod 5, the first piston 4 is arranged in the accommodating cavity, and the first piston rod 5 penetrates through the first cylinder cover 2 to be connected with the first piston 4 and drives the first piston 4 to slide in the accommodating cavity;
the second piston 6 assembly comprises a second piston 6 and a second piston rod 7, the second piston 6 is arranged in the accommodating cavity and is opposite to the first piston 4, and the second piston 6 penetrates through the second cylinder cover 3 to be connected with the second piston 6 and drives the second piston 6 to slide in the accommodating cavity;
The cylinder body is wholly the tube-shape, and first cylinder cap 2 and second cylinder cap 3 are sealed in the both ends that hold the chamber, and it has viscous damping fluid to hold to fill in the chamber, and elastic component 8 sets up and will hold the chamber and cut apart into two independent and symmetrical cavitys in holding the chamber to can produce the limiting action to the piston, avoid piston transition to remove. The elastic member 8 has an elastic modulus, and can be deformed within a certain range under the action of an external force, thereby forming a buffering action on the piston. The elastic part 8 is positioned in the center of the containing cavity, so that the whole device is uniform and symmetrical, and the use is safe and stable.
When the damping device is used, when the first piston rod 5 is acted by external force, the first piston rod 5 drives the first piston 4 to slide in the left half cavity (the direction shown in figure 1), and viscous damping fluid can flow between the first damping chamber 9 and the third damping chamber 11 in a switching mode, so that the damping buffering effect on the first piston 4 is achieved. If first piston 4 slides when locating to elastic component 8, elastic component 8 can play limiting action and cushioning effect to first piston 4 simultaneously, prevents that first piston 4 from sliding and flexible contact can avoid first piston 4 to harm, improves the life of device. At this time, the first piston 4 drives the cylinder body to slide relative to the second piston 6, so that the second piston 6 moves towards the elastic member 8, thereby effectively increasing the buffer range of the whole device.
Similarly, when the second piston rod 7 is acted by external force, the second piston rod 7 drives the second piston 6 to slide in the right half cavity, and the viscous damping fluid can be switched to flow between the second damping chamber 10 and the fourth damping chamber 12, so that the damping buffering effect is exerted on the second piston 6. If the second piston 6 slides to the elastic member 8, the elastic member 8 can also play a role in limiting and buffering the second piston 6, thereby preventing the second piston 6 from sliding excessively and preventing the second piston 6 from being damaged. At this time, the second piston 6 drives the cylinder body to slide relative to the first piston 4, so that the first piston 4 moves towards the elastic member 8, and the buffer range of the whole device is effectively enlarged.
In summary, the damping and buffering device in the present application has a two-way buffering function, the first piston 4 and the second piston 6 can slide independently or simultaneously, and when one piston slides to the elastic member 8, the other piston can also move relative to the cylinder, so that the buffering range of the whole device is greatly increased. And elastic component 8 not only can play the limiting action to the piston, can also play the cushioning effect to the piston, makes flexible contact between piston and the elastic component 8, avoids the piston to produce the damage, effectively improves the life of device.
Further, the elastic member 8 is an oil-resistant rubber block. As shown in fig. 1, an oil-resistant rubber block is used as the elastic member 8, so that the elastic member 8 has certain elasticity and certain oil corrosion resistance, the viscous damping fluid is prevented from interfering with the elastic member 8 during long-term use, and the service life of the device is prolonged.
Further, the outer diameter of the elastic element 8 is slightly larger than the inner diameter of the accommodating cavity, a groove 13 matched with the elastic element 8 is formed in the cavity wall of the central position of the accommodating cavity, and the elastic element 8 is fixed in the groove 13.
As shown in figure 1, the elastic part 8 is clamped in the groove 13 in the central cavity wall of the accommodating cavity, the structure is simple, the assembly is convenient, and the fixing stability of the elastic part 8 is effectively improved. Specifically, a groove 13 is turned on the central cavity wall of the accommodating cavity, the elastic piece 8 extends into the accommodating cavity from one end of the cylinder body and moves to the groove 13, the outer diameter of the elastic piece 8 is slightly larger than the inner diameter of the accommodating cavity, the elastic piece 8 is prevented from being separated from the accommodating cavity after being assembled, and the assembling and fixing stability of the elastic piece 8 is improved.
Further, a first overload buffering disc spring 14 is arranged on one side, facing the first cylinder head 2, of the first piston 4, and a second overload buffering disc spring 15 is arranged on one side, facing the second cylinder head 3, of the second piston 6.
As shown in fig. 1, the overload buffering disc springs are arranged on the first piston 4 and the second piston 6 towards one side of the cylinder cover, and have the characteristics of relatively large load and short stroke, so that the installation space is small, the combination and use are convenient, the rigid contact between the first piston 4 and the second piston 6 in the sliding process and the cylinder cover is avoided, the protection effect on the pistons is formed, and the service life of the whole device is effectively prolonged.
Further, a plurality of concave parts 16 are uniformly arranged on the peripheries of the first piston 4 and the second piston 6, and oil passing gaps 17 are formed between the concave parts 16 and the inner wall of the accommodating cavity.
As shown in fig. 2, the recessed portions 16 arranged on the peripheries of the first piston 4 and the second piston 6 and the inner wall of the accommodating cavity form an oil passing gap 17, so that the viscous damping fluid is switched to flow through the contact surface of the two, and compared with the situation that the oil passing gap 17 is arranged at the middle position of the piston, the acting area of the piston and the viscous damping fluid is indirectly increased, and the damping and buffering effect of the viscous damping fluid on the piston is improved. In addition, in the production process, the concave part 16 is directly cut on the periphery of the piston, and the processing and the manufacturing are simple and convenient.
Further, as shown in fig. 1, a first sealing member 18 is disposed between the first piston rod 5 and the first cylinder head 2, and a second sealing member 19 is disposed between the second piston rod 7 and the second cylinder head 3. The sealing member can effectively seal the contact surface between the piston rod and the cylinder cover, prevent viscous damping fluid from flowing out from the contact surface of the piston rod and the cylinder cover, reduce the loss of the viscous damping fluid, and simultaneously avoid the flowing viscous damping fluid to cause pollution to the environment.
With respect to the configuration of the seal, further, the first seal 18 and the second seal 19 are flood seal seals. Adopt general stopper to seal the contact surface between piston rod and the cylinder cap in this application to effectively reduce the friction loss between piston rod and the cylinder cap, effectively improve leakproofness and usability.
Further, the first cylinder head 2 and the second cylinder head 3 are both provided with oil holes 20. As shown in fig. 1, the first cylinder cover 2 and the second cylinder cover 3 are respectively provided with oil injection holes 20, so that viscous damping fluid can be conveniently injected into the cavities at two sides of the elastic part 8 respectively, the use is simple and convenient, and the assembly efficiency of the device is effectively improved.
Further, the first cylinder head 2 and the second cylinder head 3 are fixedly connected to the cylinder 1 via a connecting bolt 21. As shown in figure 1, the cylinder cover is fixedly connected with the cylinder body 1 by the connecting bolt 21, so that the assembly is simple, and the processing and the manufacturing are convenient. Specifically, corresponding screw holes are respectively turned on two end faces of the cylinder body 1 and the end face of the cylinder cover, and the cylinder cover and the cylinder body 1 are directly fastened and fixed by penetrating the screw holes through adaptive bolts.
Where not mentioned in this application, can be accomplished using or referencing existing technology.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (9)
1. A bidirectional damping buffer device is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the cylinder body comprises a cylinder body, an accommodating cavity, a first cylinder cover and a second cylinder cover, wherein the first cylinder cover and the second cylinder cover are respectively arranged at two ends of the accommodating cavity;
the first piston assembly comprises a first piston and a first piston rod, the first piston is arranged in the accommodating cavity, and the first piston rod penetrates through the first cylinder cover to be connected with the first piston and drives the first piston to slide in the accommodating cavity;
the second piston assembly comprises a second piston and a second piston rod, the second piston is arranged in the accommodating cavity and is opposite to the first piston, and the second piston penetrates through the second cylinder cover to be connected with the second piston and drives the second piston to slide in the accommodating cavity;
the elastic piece is arranged at the central position of the accommodating cavity and located between the first piston and the second piston, a first damping chamber is formed between the elastic piece and the first piston, a second damping chamber is formed between the elastic piece and the second piston, a third damping chamber is formed between the first piston and the first cylinder cover, and a fourth damping chamber is formed between the second piston and the second cylinder cover.
2. The bi-directional damping bumper of claim 1, wherein: the elastic piece is an oil-resistant rubber block.
3. The bi-directional damping bumper of claim 2, wherein: the outer diameter of the elastic part is slightly larger than the inner diameter of the accommodating cavity, a groove matched with the elastic part is formed in the cavity wall in the center of the accommodating cavity, and the elastic part is fixed in the groove.
4. The bi-directional damping bumper of claim 1, wherein: the first piston is provided with first overload buffering dish spring towards one side of first cylinder cap, the second piston is provided with second overload buffering dish spring towards one side of second cylinder cap.
5. The bi-directional damping bumper of claim 4, wherein: the periphery of first piston with the second piston evenly is provided with a plurality of depressed parts, the depressed part with the inner wall that holds the chamber forms the oil clearance.
6. The bi-directional damping bumper of claim 1, wherein: a first sealing element is arranged between the first piston rod and the first cylinder cover, and a second sealing element is arranged between the second piston rod and the second cylinder cover.
7. The bi-directional damping bumper of claim 6, wherein: the first seal and the second seal are flooded seal seals.
8. The bi-directional damping bumper of claim 7, wherein: the first cylinder cover and the second cylinder cover are provided with oil filling holes.
9. The bi-directional damping bumper of claim 8, wherein: the first cylinder cover and the second cylinder cover are fixedly connected with the cylinder body through connecting bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120635017.XU CN214367449U (en) | 2021-03-29 | 2021-03-29 | Bidirectional damping buffer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120635017.XU CN214367449U (en) | 2021-03-29 | 2021-03-29 | Bidirectional damping buffer device |
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| CN214367449U true CN214367449U (en) | 2021-10-08 |
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| CN202120635017.XU Active CN214367449U (en) | 2021-03-29 | 2021-03-29 | Bidirectional damping buffer device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023134316A1 (en) * | 2022-01-17 | 2023-07-20 | 中车青岛四方机车车辆股份有限公司 | Buffer stop |
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- 2021-03-29 CN CN202120635017.XU patent/CN214367449U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023134316A1 (en) * | 2022-01-17 | 2023-07-20 | 中车青岛四方机车车辆股份有限公司 | Buffer stop |
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