CN206487821U - A kind of damper buffer unit - Google Patents
A kind of damper buffer unit Download PDFInfo
- Publication number
- CN206487821U CN206487821U CN201621474976.3U CN201621474976U CN206487821U CN 206487821 U CN206487821 U CN 206487821U CN 201621474976 U CN201621474976 U CN 201621474976U CN 206487821 U CN206487821 U CN 206487821U
- Authority
- CN
- China
- Prior art keywords
- buffer stopper
- gap
- piston rod
- damper
- endoporus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000872 buffer Substances 0.000 title claims abstract description 123
- 210000002435 tendon Anatomy 0.000 claims abstract description 33
- 230000003139 buffering effect Effects 0.000 claims abstract description 30
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 abstract description 24
- 238000007906 compression Methods 0.000 abstract description 24
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 230000035939 shock Effects 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Abstract
The utility model discloses a kind of damper buffer unit, including buffer stopper, the buffer stopper center is provided with the endoporus above and below insertion buffer stopper, the upper inside wall of the endoporus is provided with least two convex tendons axially extended, piston rod is through inside the endoporus, the piston rod outer wall offsets with the convex tendon, the first gap is left between the adjacent convex tendon and the piston rod, the second gap is left in the middle part of the buffer stopper endoporus and between bottom and the piston rod, first gap and second gap are sequentially communicated as interior air guide channel.A kind of damper buffer unit of the utility model solves the noise that buffer stopper is inhaled in compression and springback process, is vented, and reduces the noise that buffer stopper is produced in shock；Limit the compression height of buffer stopper, it is ensured that limit point；Buffer stopper is ensured in compression, middle part is first deformed, and to buffer stopper internal compression, prevent buffering block cutting buffer stopper, improve part durability.
Description
Technical field
The utility model belongs to automobile chassis buffering field, more particularly to a kind of damper buffer unit.
Background technology
Buffer stopper is a part for suspension spring, and main function rushes to buffer in wheel hopping process to vehicle body
Hit, limiting wheel bump travel, additional rigidity is provided for suspension, in the prior art due to the imperfection in design, buffer stopper
Suction, exhaust noise are also easy to produce in compression and springback process；Shock abnormal sound, prior art are also easy to produce when buffer stopper is with plunger rod contacts
Corresponding Prevention method is not taken problem above.
Utility model content
The utility model is completed to solve of the prior art not enough, and the purpose of this utility model is to provide one
Damper buffer unit is planted, solution can not be vented and be vented abnormal sound, and impact noise is big；Ensure between buffer stopper and piston rod can
To be vented, noise is reduced.
A kind of damper buffer unit of the present utility model, including buffer stopper, the buffer stopper center are provided with insertion and delayed
The endoporus rushed above and below block, the upper inside wall of the endoporus is provided with least two convex tendons axially extended, and piston rod is through institute
State inside endoporus, the piston rod outer wall offsets with the convex tendon, first is left between the adjacent convex tendon and the piston rod
Leave the second gap in the middle part of gap, the buffer stopper endoporus and between bottom and the piston rod, first gap and described
Second gap is sequentially communicated as interior air guide channel.
A kind of damper buffer unit of the present utility model can also be：Buffer stopper is arranged with outside the buffer stopper top
Seat, the buffering block is the sleeve of top seal, and the piston rod is disposed through the buffering block center, the buffering
Third space is left between block inwall and the buffer stopper outer wall.
The buffer stopper upper surface is provided with least one salient point or flange collar, the top of the salient point or flange collar with it is described slow
Rush basal surface at the top of block to offset, stayed between the salient point or flange collar, the buffer stopper upper surface and the buffering block inwall
There is the 4th gap, the third space is connected with the 4th gap, and first gap is connected with the 4th gap.
The buffer stopper upper surface is provided with groove, leaves the 5th gap between the groove and the piston rod, and described the
Five gaps are connected with first gap, and the 5th gap is sequentially communicated as outer air guide with the third space, the 4th gap
Passage.
The salient point or the flange collar longitudinal cross-section are that hemisphere is coronal.
The salient point or the flange collar are distributed on the upper surface of the buffer stopper upper end.
The buffering block center is provided for the through hole that the piston rod is passed through, the through-hole wall and the piston
Bar outer wall offsets, and the through hole lower surface offsets with piston rod ladder axial plane.
The buffer stopper outside is provided with the annular groove of indent.
The convex tendon is axially equiangularly spaced centered on the interior hole axle to be arranged in the upper inside wall of the endoporus.
A kind of damper buffer unit of the present utility model, the buffer of damper block assembly includes buffer stopper, described slow
Rush the endoporus that block center is provided with above and below insertion buffer stopper, what the upper inside wall of the endoporus was axially extended provided with least two
Convex tendon, piston rod is through inside the endoporus, and the piston rod outer wall offsets with the convex tendon, the adjacent convex tendon with it is described
Left between piston rod in the middle part of the first gap, the buffer stopper endoporus and leave the second gap between bottom and the piston rod,
First gap and second gap are sequentially communicated as interior air guide channel.So, due to the upper inside wall of buffer stopper endoporus
Provided with convex tendon, piston rod outer wall is offseted with convex tendon, and convex tendon and piston rod can be allowed to be interference fitted, prevent buffer stopper along piston rod to
Slide, split away off.In addition again due to leaving the first gap, buffer stopper endoporus middle part and bottom between adjacent convex tendon and piston rod
The second gap is left between piston rod, the first gap and the second gap are sequentially communicated to form interior air guide channel, so, it is such
Structure allows between adjacent convex tendon between the axial direction of piston rod, forms exhaust, the passage of air-breathing.In the middle part of buffer stopper endoporus and under
The diameter of bore in portion is more than the diameter of piston rod, thus forms the second gap, and the first gap is connected with the second gap as interior air guide
Passage.Buffer stopper can be allowed in compression, the gas of compression is discharged in interior air guide channel；Buffer stopper can be also allowed simultaneously in recovery
During original state, extraneous gas is sucked in air guide channel, deformation is again waited for.Whole exhaust, air-breathing have after passage, eliminate slow
Rush block arranged in compression and springback process, the noise of air-breathing.A kind of damper buffer unit of the present utility model, relative to existing
The advantage of technology is：When solving buffer stopper and piston rod and being interference fitted, can not be inhaled in compression and springback process, asking of being vented
Topic；Reduce and reduce suction, exhaust noise that buffer stopper is produced in compression and springback process.
Brief description of the drawings
Fig. 1 is the schematic diagram of the buffer stopper cross-section structure of the utility model embodiment damper buffer unit.
Fig. 2 is the front view of the buffing pad of the utility model embodiment damper buffer unit.
Fig. 3 is the schematic diagram of the cross-section structure of the utility model embodiment damper buffer unit.
Figure number explanation
1 ... buffer stopper 2 ... buffers block 3 ... piston rod
4 ... multi-diameter shaft 101 ... convex tendon 102 ... grooves
103 ... salient points or flange collar 104 ... annular groove
Embodiment
A kind of Fig. 1-3 below in conjunction with the accompanying drawings pairs of damper buffer unit of the present utility model is described in further detail.
A kind of damper buffer unit of the present utility model, refer to Fig. 1-3, and the buffer of damper block assembly includes slow
Block 1 is rushed, the center of buffer stopper 1 is provided with endoporus of the insertion buffer stopper about 1, and the upper inside wall of the endoporus is provided with least two
The individual convex tendon 101 axially extended, piston rod 3 is through inside the endoporus, the outer wall of piston rod 3 and the convex tendon 101
Offset, leave the first gap between the adjacent convex tendon 101 and the piston rod 3, in the middle part of the endoporus of buffer stopper 1 and bottom with
The second gap is left between the piston rod 3, first gap and second gap are sequentially communicated as interior air guide channel.This
Sample, because the upper inside wall of, the endoporus of buffer stopper 1 is provided with convex tendon 101, the outer wall of piston rod 3 offsets with convex tendon 101, can allow convex tendon 101
It is interference fitted with piston rod 3, prevents buffer stopper 1 from being slid axially along piston rod 3, split away off.In addition again due to adjacent convex tendon 101
Left between piston rod 3 in the middle part of first gap, the endoporus of buffer stopper 1 and leave the second gap, first between bottom and piston rod 3
Gap and the second gap are sequentially communicated to form interior air guide channel, so, such structure allow between adjacent convex tendon 101 with piston rod
Between the axial direction of 3 axles, exhaust, the passage of air-breathing are formed.The diameter of bore of in the middle part of the endoporus of buffer stopper 1 and bottom is more than piston rod 3
Diameter, thus formed the second gap, the first gap connect with the second gap be interior air guide channel.Buffer stopper 1 can be allowed in compression
When, the gas of compression is discharged in interior air guide channel；It can also allow buffer stopper 1 in reinstatement simultaneously, extraneous gas is inhaled
Enter in air guide channel, again wait for deformation.Whole exhaust, air-breathing have after passage, eliminate buffer stopper 1 in compression and resilience
Row, the noise of air-breathing in journey.A kind of damper buffer unit of the present utility model, the advantage relative to prior art is：Solve
When buffer stopper 1 is interference fitted with piston rod 3, the problem of can not inhaling, be vented in compression and springback process；Reduce and reduce
Suction that buffer stopper 1 is produced in compression and springback process, exhaust noise.
A kind of damper buffer unit of the present utility model, refer to Fig. 1-3, on the basis of previously described technical scheme
On can also be：Buffer stopper seat 2 is arranged with outside the top of buffer stopper 1, the buffering block 2 is the sleeve of top seal, institute
State piston rod 3 and be disposed through the center of buffering block 2, stayed between the buffering inwall of block 2 and the outer wall of the buffer stopper 1
There is third space.So, when buffer stopper 1 is compressed by greater impact, its maximum deformation quantity is the height of buffering block 2, because
This can limit the excessive deformation of buffer stopper 1.Third space is left between the buffering inwall of block 2 and the outer wall of buffer stopper 1, it is slow with regard to that can allow
Block 1 is rushed in compression, the gas of compression is discharged to the outside in interior air guide channel.
A kind of damper buffer unit of the present utility model, refer to Fig. 1-3, on the basis of previously described technical scheme
It is upper to be also possible that the top that the upper surface of buffer stopper 1 is provided with least one salient point or flange collar 103, the salient point or flange collar 103
Portion offsets with the buffering top basal surface of block 2, the salient point or flange collar 103, the upper surface of the buffer stopper 1 and the buffering
The 4th gap is left between the inwall of block 2, the third space is connected with the 4th gap, first gap and described
Four gaps are connected.So, buffering block 2 is when stress is pressed downward, buffering block 2 first with the salient point of the upper surface of buffer stopper 1 or
Flange collar 103 is contacted, because contact area is small, can mitigate impact noise.Buffer stopper 1 can be allowed simultaneously in compression, by compression
Gas is discharged to the 4th gap, third space in interior air guide channel, is discharged to the outside by the 4th gap, third space；Simultaneously
Also buffer stopper 1 can be allowed in reinstatement, extraneous gas is sucked in air guide channel by third space, the 4th gap, and put down
The pressure weighed in buffer stopper 1.Further preferred technical scheme is：The upper surface of buffer stopper 1 is provided with groove 102, described recessed
The 5th gap is left between groove 102 and the piston rod 3, the 5th gap is connected with first gap, between the described 5th
Gap is sequentially communicated as outer air guide channel with the third space, the 4th gap.So, buffer stopper 1 can be allowed in forced compression, will
The gas of compression is discharged to the 5th gap, the 4th gap, third space successively in interior air guide channel, passes through the 5th gap, the 4th
Gap, third space are discharged to the outside；Simultaneously can also allow buffer stopper 1 reinstatement when, by extraneous gas by third space,
In 4th gap, the 5th gap suction air guide channel.
A kind of damper buffer unit of the present utility model, refer to Fig. 1-3, on the basis of previously described technical scheme
On can also be：The salient point or the longitudinal cross-section of the flange collar 103 are that hemisphere is coronal.So, buffering block 2 is pressed downward in stress
When, hemisphere coronal salient point or the apexes contact of flange collar 103 of the buffering block 2 first with the upper surface of buffer stopper 1, because hemisphere is coronal
Volume become larger from top to bottom, while elastic force also becomes larger, impact is progressively buffered, can effectively mitigate
Impact noise.Further preferred technical scheme is：The salient point or the flange collar 103 are distributed on the buffer stopper 1
Hold on upper surface.So, buffering block 2 is when stress is pressed downward, half spherical crown of the buffering block 2 first with the upper surface of buffer stopper 1
The apexes contact of shape salient point or flange collar 103, by pressure stepless action on the coronal salient point of hemisphere or flange collar 103, buffer stopper 1 enters one
When walking forced compression, the coronal volume of hemisphere becomes larger from top to bottom, while elastic force also becomes larger, salient point or flange collar 103
So that impact is buffered, impact noise can be mitigated.The effect that salient point or flange collar 103 are set be expand buffer stopper 1 with
The contact area between block 2 is buffered, bounce is bigger, and the cushioning effect of buffer stopper 1 is stronger.
A kind of damper buffer unit of the present utility model, refer to Fig. 1-3, on the basis of previously described technical scheme
On can also be：Buffering block 2 center is provided for the through hole that the piston rod 3 is passed through, the through-hole wall and institute
State the outer wall of piston rod 3 to offset, the through hole lower surface offsets with the face of 3 multi-diameter shaft of piston rod 4.So, buffering block 2 can only be fixed
On the upper surface of the multi-diameter shaft 4 of piston rod 3, it will not move downward.
A kind of damper buffer unit of the present utility model, refer to Fig. 1-3, on the basis of previously described technical scheme
It is upper to be also possible that the annular groove 104 that the buffer stopper outside is provided with indent.So, set and concave in the outside of buffer stopper 1
The annular groove 104 entered, can allow buffer stopper 1 in compression, first be deformed at the minimum position of the diameter of annular groove 104, i.e., to buffering
Block 1 internal compression, prevents buffering block 2 from cutting buffer stopper 1 towards outer deformation and the part of increased in size, improves buffer stopper 1
Service life, improves part durability.Preferably the longitudinal cross-section of annular groove 104 is square, arc or semicircle.
A kind of damper buffer unit of the present utility model, refer to Fig. 1-3, on the basis of previously described technical scheme
Above it is also possible that the convex tendon 101 is axially equiangularly spaced centered on the interior hole axle to be arranged in the top of the endoporus
On wall.So, due to axially equiangularly spaced centered on hole axle within convex tendon 101 to be arranged in the upper inside wall of endoporus, increase
Contact area between convex tendon 101 and piston rod 3 so that the stress between convex tendon 101 and piston rod 3 is evenly.It can allow convex
Muscle 101 is interference fitted more firmly with piston rod 3, is prevented buffer stopper 1 from being slid axially along piston rod 3, is split away off；It can allow phase again
Size identical gap is formed between adjacent convex tendon 101 between the axial direction of the axle of piston rod 3, formed uniform exhaust, air-breathing it is logical
Road, is conducive to reducing the noise produced during gas turnover, uniform channel is provided for gas flowing, further reduction exhaust, air-breathing
Noise.
It is above-mentioned that only several specific embodiments in the utility model are illustrated, but can not be as of the present utility model
Protection domain, equivalent change or modification or equal proportion amplification or contracting made by every design spirit according in the utility model
It is small etc., it is deemed to fall protection domain of the present utility model.
Claims (9)
1. a kind of damper buffer unit, it is characterised in that：Including buffer stopper, the buffer stopper center is provided with insertion buffer stopper
Endoporus up and down, the upper inside wall of the endoporus is provided with least two convex tendons axially extended, and piston rod is through described interior
Inside hole, the piston rod outer wall is offseted with the convex tendon, and the first gap is left between the adjacent convex tendon and the piston rod,
Left in the middle part of the buffer stopper endoporus and between bottom and the piston rod between the second gap, first gap and described second
Gap is sequentially communicated as interior air guide channel.
2. a kind of damper buffer unit according to claim 1, it is characterised in that：It is arranged with outside the buffer stopper top
Block is buffered, the buffering block is the sleeve of top seal, and the piston rod is disposed through the buffering block center, institute
State and leave third space between buffering block inwall and the buffer stopper outer wall.
3. a kind of damper buffer unit according to claim 2, it is characterised in that：The buffer stopper upper surface is provided with
The top of at least one salient point or flange collar, the salient point or flange collar offsets with basal surface at the top of the buffering block, the salient point
Or leave the 4th gap between flange collar, the buffer stopper upper surface and the buffering block inwall, the third space and described
4th gap is connected, and first gap is connected with the 4th gap.
4. a kind of damper buffer unit according to claim 3, it is characterised in that：The buffer stopper upper surface is provided with recessed
Groove, leaves the 5th gap between the groove and the piston rod, the 5th gap is connected with first gap, and described
Five gaps are sequentially communicated as outer air guide channel with the third space, the 4th gap.
5. a kind of damper buffer unit according to claim 3, it is characterised in that：The salient point or flange collar longitudinal direction
Section is that hemisphere is coronal.
6. a kind of damper buffer unit according to claim 3, it is characterised in that：The salient point or the flange collar have
It is distributed on the upper surface of the buffer stopper upper end.
7. according to a kind of damper buffer unit described in claim 2-6 any one claim, it is characterised in that：It is described
Buffering block center is provided for the through hole that the piston rod is passed through, and the through-hole wall offsets with the piston rod outer wall,
The ladder axial plane of the through hole lower surface and piston rod offsets.
8. according to a kind of damper buffer unit described in claim 1-6 any one claim, it is characterised in that：It is described
Buffer stopper outside is provided with the annular groove of indent.
9. according to a kind of damper buffer unit described in claim 1-6 any one claim, it is characterised in that：It is described
Convex tendon is axially equiangularly spaced centered on the interior hole axle to be arranged in the upper inside wall of the endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621474976.3U CN206487821U (en) | 2016-12-29 | 2016-12-29 | A kind of damper buffer unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621474976.3U CN206487821U (en) | 2016-12-29 | 2016-12-29 | A kind of damper buffer unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206487821U true CN206487821U (en) | 2017-09-12 |
Family
ID=59770608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621474976.3U Expired - Fee Related CN206487821U (en) | 2016-12-29 | 2016-12-29 | A kind of damper buffer unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206487821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425981A (en) * | 2018-04-02 | 2018-08-21 | 北京长安汽车工程技术研究有限责任公司 | A kind of damper and buffer stopper |
-
2016
- 2016-12-29 CN CN201621474976.3U patent/CN206487821U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425981A (en) * | 2018-04-02 | 2018-08-21 | 北京长安汽车工程技术研究有限责任公司 | A kind of damper and buffer stopper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 |