CN214617635U - Micro-amplitude response structure and shock absorber - Google Patents
Micro-amplitude response structure and shock absorber Download PDFInfo
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- CN214617635U CN214617635U CN202120305444.1U CN202120305444U CN214617635U CN 214617635 U CN214617635 U CN 214617635U CN 202120305444 U CN202120305444 U CN 202120305444U CN 214617635 U CN214617635 U CN 214617635U
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Abstract
The utility model discloses a micro-amplitude of vibration response structure, the micro-amplitude of vibration corresponding structure includes connecting piece and first cylinder, the connecting piece with the first cylinder passes through threaded connection, and the inner cavity is formed between the connecting piece and the first cylinder, the inner cavity is equipped with valve module and floating piston matching with the inner cavity from top to bottom in proper order; the valve assembly and the floating piston divide the inner cavity into a first sub inner cavity, a second sub inner cavity and a third sub inner cavity from top to bottom in sequence, the valve assembly is embedded on the first cylinder, a first through hole is formed in the valve assembly and is used for communicating the first sub inner cavity with the second sub inner cavity, and a second through hole is formed in the bottom of the first cylinder; the invention has the advantages that the micro-amplitude structure is arranged in the shock absorber, so that the damping force of the oil is reduced, and the corresponding speed of the oil is increased; the comfort of the vehicle in the driving process is improved, and the control performance of the vehicle cannot be influenced.
Description
Technical Field
The invention relates to the technical field of automobile shock absorption, in particular to a micro-amplitude response structure and a shock absorber.
Background
Conventional fluid bumper shock absorber restores the end and does not have slight amplitude response mechanism, and when the vehicle went, when meetting the uneven road surface such as cobblestone road, the vibration of road surface transmission can't be absorbed completely to the bumper shock absorber, and remaining vibration transmits the automobile body, can cause great influence to the travelling comfort of vehicle.
SUMMERY OF THE UTILITY MODEL
The invention aims to provide a micro-amplitude response structure and a shock absorber, wherein the micro-amplitude response structure is additionally arranged in the shock absorber, and the micro-amplitude response structure and a shock absorber restoring valve are connected in parallel in a mode of arranging a third through hole on a piston rod, so that an oil liquid passage is increased, and the comfort in the driving process of a vehicle is improved.
The invention is realized by the following technical scheme:
a micro-amplitude response structure comprises a connecting piece and a first cylinder barrel, wherein the bottom of the connecting piece is connected with the top of the first cylinder barrel, an inner cavity is formed between the connecting piece and the first cylinder barrel, and a valve assembly and a floating piston which are matched with the inner cavity are sequentially arranged in the inner cavity from top to bottom; the valve component and the floating piston divide the inner cavity into a first sub inner cavity, a second sub inner cavity and a third sub inner cavity from top to bottom in sequence, the valve component is embedded on the first cylinder, the valve component is provided with a first through hole, the first through hole is used for communicating the first sub inner cavity and the second sub inner cavity, the bottom of the first cylinder is provided with a second through hole,
when the micro-amplitude response structure is restored, oil flows into the first sub-inner cavity, the hydraulic pressure in the first sub-inner cavity is increased, the oil flows into the second sub-inner cavity through the first through hole in the valve assembly under the action of the hydraulic pressure, the valve assembly is used for slowing down the flow of the oil to generate damping force, the oil in the second sub-inner cavity is increased, the pressure difference formed by the oil and the third sub-inner cavity is increased, the oil in the second sub-inner cavity pushes the floating piston to move downwards under the action of the pressure difference until the floating piston is contacted with the bottom of the first cylinder barrel, the floating piston stops moving, the hydraulic pressure in the first sub-inner cavity is equal to the hydraulic pressure in the second sub-inner cavity, and the restoration is finished;
when the micro-amplitude response structure is compressed, oil flows into the micro-amplitude structure through the second through hole, the third sub-inner cavity is formed between the floating piston and the first cylinder, pressure difference is formed between the third sub-inner cavity and the second sub-inner cavity, the floating piston is pushed to move upwards under the action of the pressure difference until the top of the floating piston is contacted with the bottom of the valve assembly, the floating piston stops moving, the hydraulic pressure of the third sub-inner cavity is equal to that of the second sub-inner cavity and the pressure of the first sub-inner cavity, and the compression is finished.
The invention discloses a micro-amplitude structure and a shock absorber, wherein a piston rod is arranged in the shock absorber, a piston rod is arranged in a third through hole, and the shock absorber is used for absorbing the heat of the vibration generated by the automobile when the automobile passes through the rugged road surface.
Preferably, the bottom of the first cylinder barrel is provided with a plurality of second through holes.
The second through hole is used for connecting the third sub-inner cavity with the second sub-outer cavity, and the third through holes are formed to increase the oil flowing speed between the third sub-inner cavity and the second sub-outer cavity.
Preferably, the valve module includes a valve body, a first valve plate and a second valve plate, the first through hole is arranged on the valve body, the first valve plate and the second valve plate are respectively and fixedly arranged at two ends of the valve body and cover the first through hole, and the first valve plate, the valve body and the second valve plate are fixedly arranged through threaded connection.
Preferably, the valve assembly is provided with a plurality of first valve plates and a plurality of second valve plates.
The first valve plate and the second valve plate are arranged in different quantities, and the damping force of oil flowing through the first through hole is increased or reduced.
Preferably, a plurality of first through holes are formed in the valve body.
Preferably, the floating piston comprises a buffer block and a floating piston body, and the buffer block is embedded at the bottom of the floating piston body.
Preferably, be equipped with on the floating piston body slide bearing, the third subchamber lateral wall be equipped with slide rail that slide bearing assorted.
And sliding bearings are arranged on the floating piston and the third sub-inner cavity in the first cylinder barrel, and the floating piston moves upwards or downwards under the action of oil hydraulic pressure mainly in a sliding mode.
The invention also discloses a shock absorber, which comprises the micro-amplitude response structure and a second cylinder, wherein the micro-amplitude response structure is arranged in the second cylinder and forms an outer cavity with the second cylinder, the micro-amplitude response structure is connected with a piston rod in a threaded connection mode, the outer diameter of the recovery valve is matched with the inner diameter of the second cylinder, the outer cavity is sequentially divided into a first sub outer cavity and a second sub outer cavity from top to bottom by the recovery valve, a third through hole is formed in the piston rod, and the third through hole is used for communicating the first sub outer cavity with the first sub inner cavity in the micro-amplitude response structure.
Preferably, the restoring valve is arranged at the top end of the micro-amplitude response structure and is fixedly connected with the micro-amplitude response structure in a threaded connection mode.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. by adopting the micro-amplitude response structure and the shock absorber provided by the invention, the micro-amplitude structure is arranged in the shock absorber, so that the damping force of oil is reduced, and the corresponding speed of the oil is increased;
2. by adopting the micro-amplitude response structure and the shock absorber provided by the invention, the comfort of the vehicle in the driving process is improved, and the control performance of the vehicle is not influenced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of a micro-amplitude structure
FIG. 2 is a schematic view of the valve assembly in an extended configuration
FIG. 3 is a schematic view of the valve assembly in compression
FIG. 4 is a schematic view of a floating piston structure
FIG. 5 is a schematic view of the shock absorber during the return stroke
FIG. 6 is a schematic view of the shock absorber during the compression stroke
Reference numerals:
1. a connecting member; 2. a valve assembly; 3. a first cylinder; 4. a second through hole; 5. a first sub-interior cavity; 6. a first through hole; 7. a second sub-interior cavity; 8. a floating piston; 9. a third sub-inner cavity; 10. a first valve plate; 11. a second valve plate; 12. a floating piston body; 13. a sliding bearing; 14. a buffer block; 15. a third through hole; 16. a first sub-outer cavity; 17. a recovery valve; 18. a second cylinder; 19. second sub-outer cavity
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example one
The embodiment discloses a micro-amplitude response structure, as shown in fig. 1, which comprises a connecting piece 1 and a first cylinder barrel 3, wherein the connecting piece 1 is connected with the first cylinder barrel 3 through threads, an inner cavity is formed between the connecting piece 1 and the first cylinder barrel 3, and the inner cavity is sequentially provided with a valve component 2 and a floating piston 8 which are matched with the inner cavity from top to bottom; the valve component 2 and the floating piston 8 divide the inner cavity into a first sub inner cavity 5, a second sub inner cavity 7 and a third sub inner cavity 9 from top to bottom in sequence, the valve component 2 is embedded on the first cylinder 3, the valve component 2 is provided with a first through hole 6, the first through hole 6 is used for communicating the first sub inner cavity 5 with the second sub inner cavity 7, when the shock absorber performs piston movement, oil flows into the first sub inner cavity 5 through a third through hole 15 of the piston rod, pressure difference is formed between the first sub inner cavity 5 and the second sub inner cavity 7 due to the blocking of the valve component 2, the oil generates damping force by stretching the first through hole 6 of the valve component 2 or the valve component 2, mechanical energy which can not be completely absorbed by the recovery valve 17 is absorbed and is converted into heat energy, the bottom of the first cylinder 3 is provided with a second through hole 4, the bottom of the first cylinder 3 is provided with a plurality of second through holes 4, the second through hole 4 is mainly used for communicating oil in the third sub-inner cavity 9 with oil in the second sub-outer cavity 19.
The valve component 2 comprises a valve body, a first valve plate 10 and a second valve plate 11, wherein the first through hole 6 is formed in the valve body, the first valve plate 10 and the second valve plate 11 are fixedly arranged at two ends of the valve body respectively and cover the first through hole 6, the first valve plate 10, the valve body and the second valve plate 11 are fixedly arranged through threaded connection, the valve component 2 is provided with a plurality of first through holes 6, and the first valve plate 10 and the second valve plates 11 are provided with a plurality of second through holes 6.
As shown in fig. 2, when the valve assembly is in a stretching stroke, the first valve plate 10 and the second valve plate 11 are not deformed and are attached to the valve body in a low-speed state, and oil flows from the first sub-inner cavity 5 to the second sub-inner cavity 7 through the third through hole 15 and the groove of the valve body; the second valve plate 11 at the lower end of the valve body in the medium and high speed states is impacted by oil to generate deformation, a gap is formed between the second valve plate and the valve body, and the oil flows from the first sub-inner cavity 5 to the second sub-inner cavity 7 through the first through hole 6 and the gap between the second valve plate 11 and the valve body; as shown in fig. 3, when the valve assembly is in a compression stroke, the low-speed valve plate assembly does not deform and is attached to the valve body, and oil flows from the second sub-inner cavity 7 to the first sub-inner cavity 5 through the first through hole 6 and the outer groove of the valve body; the first valve plate 10 at the upper end of the valve body in the medium and high speed states is impacted by oil liquid to generate deformation, a gap is formed between the first valve plate 10 and the valve body, and the oil liquid flows from the second sub-inner cavity 7 to the first sub-inner cavity 5 through the first through hole 6 and the gap between the first valve plate 10 and the valve body.
As shown in fig. 4, the floating piston 8 includes a buffer block 14 and a floating piston body 12, the buffer block 14 is embedded at the bottom of the floating piston 8, a sliding bearing 13 is arranged on the floating piston body 12, a sliding rail matched with the sliding bearing 13 is arranged on the side wall of the third sub-cavity, the floating piston 8 moves back and forth in the cavity, and the oil quantity passing through the valve assembly 2 is controlled by adjusting the movement stroke of the floating piston 8, so as to control the working stroke of the valve assembly 2.
Example two
The embodiment discloses a shock absorber, as shown in fig. 5 or fig. 6, a micro-amplitude response structure disclosed in the first embodiment is adopted, the structure further includes a second cylinder 18, the micro-amplitude response structure is arranged inside the second cylinder 18 and forms an outer cavity with the second cylinder 18, the micro-amplitude response structure is connected with a piston rod through a threaded connection mode, the outer diameter of a recovery valve 17 is matched with the inner diameter of the second cylinder 18, the outer cavity is sequentially divided into a first sub outer cavity 16 and a second sub outer cavity 19 from top to bottom through the recovery valve 17, a third through hole 15 is formed in the piston rod, the third through hole 15 is used for communicating the first sub outer cavity 16 with a first sub inner cavity 5 in the micro-amplitude response structure, and the recovery valve 17 is arranged at the top end of the micro-amplitude response structure and is fixedly connected with the micro-amplitude response structure through a threaded connection mode.
The working principle is as follows:
as shown in fig. 5, which is a schematic view of the shock absorber during the process of restoring the shock absorber, when the shock absorber is in the process of restoring, oil in the first sub-outer cavity 16 flows into the first sub-inner cavity 5 through the third through hole 15 in the piston rod, the pressure of the first sub-inner cavity 5 is increased due to the inflow of the oil, the pressure of the first sub-inner cavity 5 is greater than the pressure in the second sub-inner cavity, the oil flows into the second sub-inner cavity 7 from the first sub-inner cavity 5 through the first through hole 6, and when the oil flows through the valve assembly 2, the combination of the first valve plate 10 and the second valve plate 11 in the valve assembly 2 blocks and slows down the flow of the oil, so as to generate a damping force; after the oil liquid is left in the second sub-inner cavity 7, the oil liquid in the second sub-inner cavity 7 is increased, the hydraulic pressure is increased, because the lower end of the first cylinder barrel 3 is provided with the second through hole 4 communicated with the second cylinder barrel 18, the hydraulic pressure of the third sub-inner cavity 9 is communicated with the second sub-outer cavity 19, the oil liquid flows out from the second through hole 4, the pressure of the third sub-inner cavity 9 is smaller than that of the second sub-inner cavity 7, the floating piston 8 moves downwards due to the pushing of the hydraulic pressure, and the space of the third sub-inner cavity 9 is reduced; the floating piston 8 moves to the bottom end of the first cylinder barrel 3, when the floating piston 8 contacts the bottom of the first cylinder barrel 3, the floating piston 8 stops moving, the buffer block 14 arranged in the middle of the floating piston 8 deforms to block the through hole in the bottom of the cylinder barrel, the third sub-inner cavity 9 completely disappears at the moment, the hydraulic pressure of the first sub-inner cavity 5, the hydraulic pressure of the second sub-inner cavity 7 and the hydraulic pressure of the outer cavity are equal, and the recovery stroke is finished.
As shown in fig. 6, when the shock absorber is in a compression stroke, oil in the second sub outer cavity 19 flows into the micro-amplitude structure through the second through hole 4 to form a third sub cavity, the hydraulic pressure is increased due to the fact that the oil in the second sub outer cavity 19 continuously flows into the third sub cavity and increases, the floating piston 8 is pushed to move towards the second sub inner cavity 7, the volume of the second sub inner cavity 7 is reduced due to the pushing of the floating piston 8, the internal pressure is increased, the oil flows towards the first sub inner cavity 5 through the valve assembly 2, when the oil flows through the valve assembly 2, the combination of the first valve plate 10 and the second valve plate 11 in the valve assembly 2 blocks and slows down the flow of the oil, and damping force is generated; when the floating piston 8 contacts with the lower end of the valve component 2, the volume of the third sub-cavity can not be increased any more, the internal hydraulic pressure of the third sub-cavity is equal to that of the first sub-inner cavity 5, the second sub-inner cavity 7 and the outer cavity, and the compression stroke is finished.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The micro-amplitude response structure is characterized by comprising a connecting piece (1) and a first cylinder barrel (3), wherein the bottom of the connecting piece (1) is connected with the top of the first cylinder barrel (3), an inner cavity is formed between the connecting piece (1) and the first cylinder barrel (3), and a valve component (2) and a floating piston (8) which are matched with the inner cavity are sequentially arranged in the inner cavity from top to bottom; valve module (2) with floating piston (8) with interior cavity from last to splitting into cavity (5) in first son, cavity (7) in the second son and cavity (9) in the third son in proper order down, valve module (2) are inlayed on first cylinder (3), just be equipped with first through-hole (6) on valve module (2), first through-hole (6) are used for communicateing cavity (5) in the first son and cavity (7) in the second, first cylinder (3) bottom is equipped with second through-hole (4).
2. A structure with a slight amplitude response as in claim 1, characterized in that the bottom of the first cylinder (3) is provided with a plurality of second through holes (4).
3. The micro-amplitude response structure according to claim 1, wherein the valve assembly (2) comprises a valve body, a first valve plate (10) and a second valve plate (11), the first through hole (6) is formed in the valve body, the first valve plate (10) and the second valve plate (11) are respectively and fixedly arranged at two ends of the valve body and cover the first through hole (6), and the first valve plate (10), the valve body and the second valve plate (11) are fixedly arranged through threaded connection.
4. A structure with a slight amplitude response as claimed in claim 3, characterized in that said valve member (2) is provided with a plurality of said first flaps (10) and a plurality of said second flaps (11).
5. A slight amplitude response construction according to claim 3, characterised in that the valve body is provided with a number of first through holes (6).
6. A slight amplitude response structure as claimed in claim 1, characterised in that the floating piston (8) comprises a damping block (14) and a floating piston body (12), the damping block (14) being embedded in the bottom of the floating piston body (12).
7. A slight amplitude response structure as claimed in claim 6 characterised in that the body of the floating piston (8) is provided with a sliding bearing (13) and the side wall of the third sub-chamber is provided with a sliding track matching the sliding bearing (13).
8. A shock absorber, comprising the micro-amplitude response structure, the restoring valve (17) and the second cylinder (18) as claimed in any one of claims 1 to 7, wherein the micro-amplitude response structure is disposed inside the second cylinder (18) and forms an outer cavity with the second cylinder (18), the micro-amplitude response structure is connected with a piston rod through a threaded connection manner, the outer diameter of the restoring valve (17) is matched with the inner diameter of the second cylinder (18), the outer cavity is sequentially divided into a first sub outer cavity (16) and a second sub outer cavity (19) by the restoring valve (17), a third through hole (15) is disposed on the piston rod, and the third through hole (15) is used for communicating the first sub outer cavity (16) with the first sub inner cavity (5) in the micro-amplitude response structure.
9. A shock absorber according to claim 8, wherein: the restoring valve (17) is arranged at the top end of the micro-amplitude response structure and is fixedly connected with the micro-amplitude response structure in a threaded connection mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120305444.1U CN214617635U (en) | 2021-02-03 | 2021-02-03 | Micro-amplitude response structure and shock absorber |
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| CN202120305444.1U CN214617635U (en) | 2021-02-03 | 2021-02-03 | Micro-amplitude response structure and shock absorber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797104A (en) * | 2021-02-03 | 2021-05-14 | 四川宁江山川机械有限责任公司 | Micro-amplitude response structure and shock absorber |
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2021
- 2021-02-03 CN CN202120305444.1U patent/CN214617635U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797104A (en) * | 2021-02-03 | 2021-05-14 | 四川宁江山川机械有限责任公司 | Micro-amplitude response structure and shock absorber |
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