CN220470533U - Runner structure of adjustable damping peak frequency - Google Patents
Runner structure of adjustable damping peak frequency Download PDFInfo
- Publication number
- CN220470533U CN220470533U CN202322119182.1U CN202322119182U CN220470533U CN 220470533 U CN220470533 U CN 220470533U CN 202322119182 U CN202322119182 U CN 202322119182U CN 220470533 U CN220470533 U CN 220470533U
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- cover plate
- baffle
- flow channel
- wall
- peak frequency
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- 238000013016 damping Methods 0.000 title claims abstract description 28
- 230000002093 peripheral effect Effects 0.000 claims abstract description 31
- 238000005192 partition Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 13
- 239000000725 suspension Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a flow channel structure capable of adjusting damping peak frequency, which comprises a cover plate and a bottom plate which are assembled up and down, wherein the top surface of the bottom plate sequentially extends from outside to inside to form a peripheral wall, a middle wall and an inner wall; a baffle is connected between the peripheral wall and the middle wall and separates the annular space; the top of the baffle extends upwards to form a bulge, a plurality of bayonets are arranged at intervals along the circumferential direction on the edge of the bottom surface of the cover plate, and the bulge is clamped and matched with one of the bayonets; when the device is used for debugging, the cover plate can be forced to rotate relative to the bottom plate, so that samples with different flow channel lengths can be obtained rapidly, samples with different peak frequencies and damping can be obtained, the debugging requirements of customers can be met, and the device is good in practicability.
Description
Technical Field
The utility model relates to the technical field of engine hydraulic suspension, in particular to a flow passage structure capable of adjusting damping peak frequency.
Background
There is an increasing demand for NVH performance during the commissioning of vehicles at the host factory, where damping peak frequencies are particularly important. Hydraulic suspensions are typically composed of metal housings, main springs, runner systems, sealing systems, etc., where the main factors affecting damping, dynamic stiffness, and peak damping frequency are runner systems. In the hydraulic suspension, the sectional area of the channel which is uniformly formed after assembly is called a channel sectional area S, and the length of the liquid flowing through the channel is called a channel length L. In the running process of the automobile, large displacement (amplitude) is generated through a deceleration strip or a pit, the suspension is subjected to exciting force, the main sprung liquid cavity is compressed, liquid can flow, the whole flow channel inner cavity is bypassed through the inlet of the flow channel, in the moving process, the liquid forms a vibrating liquid column in the flow channel, and the inertial resistance generated by the liquid column in the moving process is called damping. The vibration frequency at which the damping reaches the maximum peak is referred to as the damping peak frequency.
In general, a customer inputs a required damping peak interval, and a required flow channel length L and a flow channel sectional area S are calculated according to theory; in the development stage, a debugging sample is required to be prepared for a customer, and in a runner which is produced most likely, the peak frequency cannot meet the use requirement of the customer; alternatively, with the client NVH debug results, update requirements may be raised, requiring different debug samples.
In the prior art, a normal runner system cannot be reused after being assembled and used once; moreover, when multiple peak frequency samples are needed, different runner system samples can be manufactured only through machining or die opening, so that the cost is high, the period is long, and the debugging flexibility is poor.
Disclosure of Invention
The applicant provides a flow channel structure with reasonable structure and adjustable damping peak frequency aiming at the defects in the prior art, so that samples with different flow channel lengths can be obtained quickly, the samples with different peak frequencies and damping can be obtained, the debugging requirements of clients can be met, the cost can be effectively reduced, the period can be shortened, the flexibility can be improved, and the practicability is good.
The technical scheme adopted by the utility model is as follows:
the flow channel structure comprises a cover plate and a bottom plate which are assembled up and down, wherein the top surface of the bottom plate sequentially extends from outside to inside to form a peripheral wall, a middle wall and an inner wall; a separation baffle is connected between the peripheral wall and the middle wall and separates the annular space; the top of the baffle extends upwards to form a bulge, a plurality of bayonets are arranged at intervals along the circumferential direction on the edge of the bottom surface of the cover plate, and the bulge is clamped and matched with one of the bayonets.
As a further improvement of the above technical scheme:
an outlet communicated downwards is formed in one side of the baffle and the bottom surface of the bottom plate together, an inlet communicated vertically is formed in the cover plate, and an annular space between the inlet and the outlet forms a flow passage; the peripheral wall of the bottom plate positioned at the other side of the baffle is provided with a liquid filling port which is internally and externally communicated, and the liquid filling port is blocked after liquid filling is completed.
The protrusions on the top surface of the baffle are distributed along the radial direction of the bottom plate to form convex edges, and the bayonets on the cover plate are provided with a plurality of clamping grooves matched with the convex edges; the convex rib is of an integrated structure with the bottom plate, or the convex rib is a bolt assembled at the baffle position of the bottom plate.
The bolt penetrates through the peripheral wall from outside to inside and then is assembled and protrudes out of the top surface of the baffle; the structure of the bolt is as follows: the pin comprises a pin end part, a pin neck part and a pin body which are sequentially connected along the length direction, wherein the cross section of the pin end part is larger than that of the pin neck part and the pin body, and the top surface of the pin body end part is concave to form the pin neck part; the top surface of the baffle is provided with a slot which is matched with the pin body in a plug-in way, the end part of the slot penetrates through the peripheral wall to form a through hole, and the outer orifice of the through hole is provided with a concave hole which is matched with the end part of the pin.
The clamping grooves on the bottom surface of the cover plate are intensively distributed at the other end of the diameter direction opposite to the inlet.
And a containing space for assembling the decoupling film is formed between the middle surrounding wall and the inner surrounding wall below the cover plate, and the cross section shape of the containing space is matched with the cross section shape of the decoupling film.
The cross section of the decoupling film is of an H-shaped structure, and the middle section of the horizontal part of the H-shaped structure protrudes upwards and downwards.
The bottom surface of the cover plate positioned at the inner side of the decoupling film is downwards extended with a convex ring, and the convex ring is surrounded at the outer side of the inner surrounding wall.
And a concave-convex fitting structure is arranged on the surface of the adhesion wall of the convex ring and the inner surrounding wall along the circumferential direction.
The inner edge of the peripheral wall is concave to form an inner step matched with the edge of the cover plate, and a concave-convex matched step structure is arranged between the inner edge of the central wall and the bottom surface of the cover plate.
The beneficial effects of the utility model are as follows:
the utility model has compact and reasonable structure and convenient operation, and can apply force to the cover plate to rotate relative to the bottom plate when in debugging and use, thereby rapidly obtaining samples with different flow channel lengths, obtaining samples with different peak frequencies and damping, meeting the debugging requirements of clients, effectively reducing the cost, shortening the period, improving the flexibility and having good practicability.
Drawings
Fig. 1 is a cross-sectional view of the present utility model.
Fig. 2 is a partial enlarged view at a in fig. 1.
Fig. 3 is an exploded view of the present utility model.
Fig. 4 is a partial enlarged view at B in fig. 3.
FIG. 5 is a schematic view of the assembly of the latch and the base plate of the present utility model.
Fig. 6 is a schematic structural view of the cover plate of the present utility model.
Wherein: 1. a bottom plate; 2. a flow passage; 3. a cover plate; 4. a decoupling film; 5. a plug pin;
10. a step structure; 11. a peripheral wall; 12. a middle surrounding wall; 13. an inner peripheral wall; 14. an outlet; 15. a baffle; 16. a rib; 17. a liquid filling port; 18. a slot; 111. an inner step; 181. a through hole; 182. concave holes;
31. a convex ring; 32. an inlet; 33. a clamping groove;
51. a pin body; 52. a pin neck; 53. a pin end.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
As shown in fig. 1 and 3, a flow channel structure with adjustable damping peak frequency in this embodiment includes a cover plate 3 and a bottom plate 1 assembled up and down, the top surface of the bottom plate 1 extends from outside to inside in sequence to form a peripheral wall 11, a middle wall 12 and an inner wall 13, the edge of the cover plate 3 is assembled on the peripheral wall 11, and an annular space is formed between the peripheral wall 11 and the middle wall 12 below the cover plate 3; a baffle 15 is connected between the peripheral wall 11 and the middle wall 12, and the baffle 15 partitions the annular space; the top of the baffle 15 extends upwards to form a bulge, the edge of the bottom surface of the cover plate 3 is provided with a plurality of bayonets at intervals along the circumferential direction, and the bulge is clamped and matched with one of the bayonets; in actual use, the cover plate 3 is forced to rotate relative to the bottom plate 1, so that samples with different flow channel lengths can be obtained quickly, samples with different peak frequencies and damping can be obtained, the debugging requirements of customers are met, and convenience, quick connection and reliability are realized.
The baffle 15 is provided with an outlet 14 which is communicated downwards on one side and the bottom surface of the bottom plate 1, the cover plate 3 is provided with an inlet 32 which is communicated vertically, and an annular space between the inlet 32 and the outlet 14 forms a flow passage 2.
During rotation of the cover plate 3 relative to the base plate 1, the circumferential distance of the inlet 32 relative to the outlet 14 is correspondingly adjusted, so that the length of the flow channel 2 is adjusted.
The peripheral wall 11 of the bottom plate 1 positioned at the other side of the baffle 15 is provided with a liquid filling port 17 which is internally and externally communicated, and the liquid filling port 17 is blocked after liquid filling is completed; the filling opening 17 is provided for filling the interior of the device after assembly.
As shown in fig. 4, the protrusions on the top surface of the baffle 15 are arranged along the radial direction of the bottom plate 1 to form convex edges 16, and the bayonets on the cover plate 3 are provided with a plurality of clamping grooves 33 matched with the convex edges 16; the fixing of the cover plate 3 relative to the base plate 1 after rotation can be effectively ensured by the clamping fit between the convex edges 16 and the clamping grooves 33 with certain length and size, and the stability and the reliability of the structure can be effectively ensured.
In one embodiment, as shown in fig. 4, the rib 16 is an integrally formed structure with the base plate 1; during adjustment, the cover plate 3 can be axially disengaged from the base plate 1, rotated to a predetermined position, and then axially fitted, with the lugs 16 mating with the detents 33.
In another embodiment, as shown in fig. 5, the rib 16 is a pin 5 fitted at a shelf 15 of the base plate 1.
As shown in fig. 5, the latch 5 is fitted through the peripheral wall 11 from the outside to the inside and protrudes from the top surface of the barrier 15, thereby forming a rib 16 protruding from the top surface of the barrier 15 and fitted with the catching groove 33.
In this embodiment, the latch 5 is arranged independently of the bottom plate 1, and then the latch 5 is in a plug-in matched structure, so that abrasion between the latch 5 serving as the convex rib 16 and the clamping groove 33 can be reduced or even avoided, and the cover plate 3 can rotate relative to the bottom plate 1 conveniently; in particular, after the cover plate 3 rotates to a preset position relative to the bottom plate 1, the plug pins 5 are inserted for assembly, so that the operation is simple, convenient and reliable, and the use reliability of the assembly structure is effectively improved.
The structure of the bolt 5 is as follows: the pin comprises a pin end 53, a pin neck 52 and a pin body 51 which are sequentially connected along the length direction, wherein the section of the pin end 53 is larger than that of the pin neck 52 and that of the pin body 51, and the top surface of the pin body 51 is concave to form the pin neck 52; the top surface of the baffle 15 is provided with a slot 18 which is inserted and matched with the pin body 51, the end part of the slot 18 penetrates through the peripheral wall 11 to form a through hole 181, and the outer hole of the through hole 181 is provided with a concave hole 182 which is matched with the pin end part 53.
After the plug 5 is inserted into the bottom plate 1, the pin end 53 is accommodated in the concave hole 182, the pin neck 52 is positioned in the through hole 181, and the pin body 51 is positioned in the slot 18 inside the peripheral wall 11, so that the assembly is completed; the recess 182 extends upwardly to the top surface of the peripheral wall 11 to facilitate the fitting and removal of the latch 5 relative to the base plate 1.
As shown in fig. 6, the catching groove 33 of the bottom surface of the cover plate 3 is centrally disposed at the other end in the diametrical direction opposite to the inlet 32.
Of course, in actual use, the clamping grooves 33 can be arranged in different numbers, different positions and different spacing distances on the cover plate 3 according to the actual debugging requirements, and the matched bottom plate 1 can be used in the same way without replacement, so that the debugging flexibility is effectively improved, and the cost is reduced and saved.
As shown in fig. 1 and 2, a receiving space for fitting the decoupling film 4 is formed between the middle surrounding wall 12 and the inner surrounding wall 13 below the cover plate 3, and the cross-sectional shape of the receiving space matches the cross-sectional shape of the decoupling film 4.
The decoupling film 4 has an H-shaped cross-section, with the middle section of the horizontal portion protruding upward and downward.
The bottom surface of the cover plate 3 positioned at the inner side of the decoupling film 4 is downwards extended with a convex ring 31, the convex ring 31 is surrounded at the outer side of the inner peripheral wall 13, the installation between the cover plate 3 and the bottom plate 1 is realized, and the cover plate 3 can rotate relative to the bottom plate 1 on the basis of the assembly.
The convex ring 31 and the inner peripheral wall 13 are provided with concave-convex fitting structures along the circumferential direction on the fitting wall surface, so that reliable fitting between the cover plate 3 and the bottom plate 1 is realized, and relative rotation between the cover plate and the bottom plate is not influenced.
The inner edge of the peripheral wall 11 is concavely formed with an inner step 111 assembled with the edge of the cover plate 3, and a step structure 10 matched with the concave-convex is arranged between the inner edge of the central wall 12 and the bottom surface of the cover plate 3, so that a relatively reliable and stable flow channel 2 is realized.
The application mode of the utility model is as follows:
a decoupling film 4 is assembled between the inner wall 13 and the middle wall 12 of the bottom plate 1, a cover plate 3 is assembled above the bottom plate 1, one clamping groove 33 on the bottom surface of the cover plate 3 is matched with the convex rib 16 on the bottom plate 1, and a flow channel 2 with a preset length is obtained between the inlet 32 of the cover plate 3 and the outlet 14 of the bottom plate 1; when the length of the flow channel 2 needs to be adjusted, the cover plate 3 is forced to rotate relative to the bottom plate 1, so that the length of the flow channel 2 between the inlet 32 and the outlet 14 is adjusted.
When the bolt 5 is used on the bottom plate 1, the clamping groove 33 on the bottom surface of the cover plate 3 is aligned with the slot 18 on the baffle 15 of the bottom plate 1 from top to bottom, the bolt 5 is inserted into the slot 18 of the bottom plate 1 from outside to inside, and the rotation of the cover plate 3 relative to the bottom plate 1 in the circumferential direction is realized through the bolt 5; when the adjustment is needed, the bolt 5 is pulled out from the bottom plate 1, the cover plate 3 is rotated relative to the bottom plate 1 by applying force, the other clamping groove 33 is aligned with the slot 18, and the bolt 5 is inserted again to fix, so that the length of the flow channel 2 is adjusted.
The utility model has simple operation, can quickly obtain the sample pieces with different flow channel lengths, obtain the sample pieces with different peak frequencies and damping, meet the debugging requirements of clients, effectively reduce the cost, shorten the period, improve the flexibility and have good practicability.
The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.
Claims (10)
1. The utility model provides a runner structure of adjustable damping peak frequency which characterized in that: the device comprises a cover plate (3) and a bottom plate (1) which are assembled up and down, wherein the top surface of the bottom plate (1) sequentially extends from outside to inside to form a peripheral wall (11), a middle wall (12) and an inner wall (13), the edge of the cover plate (3) is assembled on the peripheral wall (11), and an annular space is formed by surrounding between the peripheral wall (11) and the middle wall (12) which are positioned below the cover plate (3); a baffle (15) is connected between the peripheral wall (11) and the middle surrounding wall (12), and the baffle (15) partitions the annular space; the top of the baffle (15) extends upwards to form a bulge, a plurality of bayonets are arranged at intervals along the circumferential direction on the edge of the bottom surface of the cover plate (3), and the bulge is clamped and matched with one of the bayonets.
2. A flow channel structure with adjustable damping peak frequency as set forth in claim 1, wherein: an outlet (14) which is communicated downwards is formed in one side of the baffle (15) and the bottom surface of the bottom plate (1), an inlet (32) which is communicated up and down is formed in the cover plate (3), and an annular space between the inlet (32) and the outlet (14) forms a flow passage (2); the peripheral wall (11) of the bottom plate (1) positioned at the other side of the baffle (15) is provided with a filling port (17) which is internally and externally communicated, and the filling port (17) is blocked after filling.
3. A flow channel structure with adjustable damping peak frequency as set forth in claim 2, wherein: the protrusions on the top surface of the baffle (15) are distributed along the radial direction of the bottom plate (1) to form convex edges (16), and the bayonets on the cover plate (3) are provided with a plurality of clamping grooves (33) matched with the convex edges (16); the convex rib (16) is of an integrated structure with the bottom plate (1), or the convex rib (16) is a bolt (5) assembled at the baffle (15) of the bottom plate (1).
4. A flow channel structure with adjustable damping peak frequency as set forth in claim 3, wherein: the bolt (5) passes through the peripheral wall (11) from outside to inside and then is assembled and protrudes out of the top surface of the baffle (15); the structure of the bolt (5) is as follows: the pin comprises a pin end part (53), a pin neck part (52) and a pin body (51) which are sequentially connected along the length direction, wherein the cross section of the pin end part (53) is larger than that of the pin neck part (52) and that of the pin body (51), and the top surface of the end part of the pin body (51) is concave to form the pin neck part (52); the top surface of the baffle (15) is provided with a slot (18) which is matched with the pin body (51) in a plug-in way, the end part of the slot (18) penetrates through the peripheral wall (11) to form a through hole (181), and the outer hole of the through hole (181) is provided with a concave hole (182) which is matched with the pin end part (53).
5. A flow channel structure with adjustable damping peak frequency as set forth in claim 3, wherein: the clamping grooves (33) on the bottom surface of the cover plate (3) are intensively arranged at the other end of the diameter direction opposite to the inlet (32).
6. A flow channel structure with adjustable damping peak frequency as set forth in claim 1, wherein: an accommodating space for accommodating the decoupling film (4) is formed between the middle surrounding wall (12) and the inner surrounding wall (13) below the cover plate (3), and the cross-sectional shape of the accommodating space is matched with that of the decoupling film (4).
7. The flow channel structure with adjustable damping peak frequency as set forth in claim 6, wherein: the cross section of the decoupling film (4) is of an H-shaped structure, and the middle section of the horizontal part of the H-shaped structure protrudes upwards and downwards.
8. The flow channel structure with adjustable damping peak frequency as set forth in claim 6, wherein: the bottom surface of the cover plate (3) positioned at the inner side of the decoupling film (4) is downwards extended with a convex ring (31), and the convex ring (31) is surrounded at the outer side of the inner peripheral wall (13).
9. The flow channel structure with adjustable damping peak frequency as set forth in claim 8, wherein: the convex ring (31) is provided with a concave-convex fitting structure along the circumferential direction on the surface of the joint wall of the inner surrounding wall (13).
10. A flow channel structure with adjustable damping peak frequency as set forth in claim 1, wherein: the inner edge of the peripheral wall (11) is concave to form an inner step (111) matched with the edge of the cover plate (3), and a concave-convex matched step structure (10) is arranged between the inner edge of the middle surrounding wall (12) and the bottom surface of the cover plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322119182.1U CN220470533U (en) | 2023-08-08 | 2023-08-08 | Runner structure of adjustable damping peak frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322119182.1U CN220470533U (en) | 2023-08-08 | 2023-08-08 | Runner structure of adjustable damping peak frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220470533U true CN220470533U (en) | 2024-02-09 |
Family
ID=89774785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322119182.1U Active CN220470533U (en) | 2023-08-08 | 2023-08-08 | Runner structure of adjustable damping peak frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220470533U (en) |
-
2023
- 2023-08-08 CN CN202322119182.1U patent/CN220470533U/en active Active
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