CN209164467U - Variable diameter piston damper - Google Patents
Variable diameter piston damper Download PDFInfo
- Publication number
- CN209164467U CN209164467U CN201821612513.8U CN201821612513U CN209164467U CN 209164467 U CN209164467 U CN 209164467U CN 201821612513 U CN201821612513 U CN 201821612513U CN 209164467 U CN209164467 U CN 209164467U
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- piston
- variable diameter
- piston rod
- stop bit
- diameter
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Abstract
The utility model relates to absorber technical field more particularly to a kind of variable diameter piston dampers, including piston rod, guider, variable diameter piston cylinder, limit sleeve, stop bit piston and working piston；The upper inner diameter of the variable diameter piston cylinder is less than the internal diameter of lower part, piston rod is placed in variable diameter piston cylinder middle and upper part and is oriented to by guider, stop bit piston is fixed on the middle part of the piston rod and is limited by the limit sleeve, and the working piston is fixed on the lower part of the piston rod.Such piston cylinder reduces diameter in piston cylinder upper end position on the basis of pot type piston cylinder.There is a stop bit piston in the middle part of piston rod, stop bit piston is moved in the piston cylinder for reducing diameter, oil liquid moment blocks, additionally generate certain damping force, the shock of guider and limit sleeve is reduced, to reduce or eliminate the shock abnormal sound of damper, this structure is only acted in bottleneck generation, it does not work in other positions, does not influence the comfort and stability of damper.
Description
Technical field
The utility model relates to absorber technical field more particularly to a kind of variable diameter piston dampers.
Background technique
With increasing rapidly for national economy, the higher and higher vehicle vibration damping of requirement of the people to safety concerns and comfort
Device directly affects the comfort of automobile as the important indicator for measuring car comfort, the quality of damping property, and damper
Damping property and its internal structure have direct relationship, currently, the damper piston cylinder of most of low and middle-end vehicle all uses
Straight barrel type leans on hydraulic generation damping force, achievees the effect that vibration damping, the damping force and work that this structure generates with elastic element cooperation
Plug velocity of vibration is directly proportional, and under common road conditions, damper can satisfy service condition, but the rural area road bad in condition of road surface
Road and town road deceleration strip are more than the road conditions of 10cm, and damper is easy to stretch longest and hits the generation sound,
Utility model content
The main purpose of the utility model provides a kind of variable diameter piston damper aiming at the above problem, improves damping
Device performance prevents the excessive generation abnormal sound of shock absorber.
In order to achieve the above object, the utility model adopts the following technical solutions: a kind of variable diameter piston damper, feature exist
In: including piston rod, guider, variable diameter piston cylinder, limit sleeve, stop bit piston and working piston；The variable diameter piston cylinder
Upper inner diameter is less than the internal diameter of lower part, and piston rod is placed in variable diameter piston cylinder middle and upper part and is oriented to by guider, and stop bit piston is solid
It is scheduled on the middle part of the piston rod and is limited by the limit sleeve, the working piston is fixed under the piston rod
Portion.
Preferably, it is equipped with seal groove the ring week of the stop bit piston, is equipped with sealing ring in the seal groove.
Preferably, the middle part of the piston rod is equipped with limiting slot, fixes restraining position ring block in limiting slot, stop collar blocks limit
The top of set.
The beneficial effects of the utility model are: such piston cylinder is on the basis of pot type piston cylinder, in piston cylinder upper end position
It sets and reduces diameter.There is a stop bit piston in the middle part of piston rod, stop bit piston is moved in the piston cylinder for reducing diameter, oil liquid wink
Between block, additionally generate certain damping force, the shock of guider and limit sleeve reduced, to reduce or eliminate hitting for damper
Abnormal sound is hit, this structure only acts in bottleneck generation, do not work in other positions, do not influence the comfort and stabilization of damper
Property.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the variable diameter piston cylinder indicator card of the utility model；
Fig. 3 is the pot type piston cylinder indicator card of the utility model.
Specific embodiment
With reference to the accompanying drawing and specific embodiment of the present utility model is described in detail in preferred embodiment.As shown in Figure 1, one
Kind variable diameter piston damper, including piston rod 1, guider 2, variable diameter piston cylinder 3, limit sleeve 4, stop bit piston 5 and work are lived
Plug 6；The upper inner diameter of the variable diameter piston cylinder is less than the internal diameter of lower part, and piston rod is placed in variable diameter piston cylinder middle and upper part by leading
It is oriented to device, stop bit piston is fixed on the middle part of the piston rod and is limited by the limit sleeve, and limit sleeve, which is placed, is only
Piston moves on the piston rod, and the working piston is fixed on the lower part of the piston rod.In order to improve stop bit piston and variable diameter
The leakproofness of piston rod is equipped with seal groove the ring week of the stop bit piston, is equipped with sealing ring in the seal groove.The piston rod
Middle part be equipped with limiting slot, fix restraining position ring block in limiting slot, stop collar blocks the top of limit sleeve.
Fig. 3 is pot type piston cylinder indicator card.Piston rod generates movement under the drive of vehicle body or vehicle frame, in different mobile speed
Under degree, the opening degree of valve system is different, so the circulation of oil liquid is different, to generate different size of damping force, and damps
Power size is directly proportional to the speed of piston vibration.
Fig. 2 is variable diameter piston cylinder indicator card.When such indicator card is that piston is moved to variable diameter position in the middle part of piston rod, oil
Liquid moment blocks, and compared with common piston cylinder, damping force of the damper in piston cylinder variable diameter position obviously rises, and bottom is living
The effect of plug does not influence, and the stability and comfort of vehicle body do not change, and eliminates shock absorber longest and hit production
Raw abnormal sound.
Such piston cylinder reduces diameter in piston cylinder upper end position on the basis of pot type piston cylinder.In the middle part of piston rod
There is a stop bit piston, stop bit piston is moved in the piston cylinder for reducing diameter, and oil liquid moment blocks, and additionally generates certain resistance
Buddhist nun's power, reduces the shock of guider and limit sleeve, to reduce or eliminate the shock abnormal sound of damper, this structure is only in bottleneck
Generation effect, does not work in other positions, does not influence the comfort and stability of damper.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (3)
1. a kind of variable diameter piston damper, it is characterised in that: including piston rod, guider, variable diameter piston cylinder, limit sleeve, stop bit
Piston and working piston；The upper inner diameter of the variable diameter piston cylinder is less than the internal diameter of lower part, and it is living that piston rod is placed in the variable diameter
Plug cylinder middle and upper part is oriented to by guider, and stop bit piston is fixed on the middle part of the piston rod and is limited by the limit sleeve,
The working piston is fixed on the lower part of the piston rod.
2. variable diameter piston damper according to claim 1, it is characterised in that: the ring week of the stop bit piston is equipped with sealing
Slot, the seal groove is interior to be equipped with sealing ring.
3. variable diameter piston damper according to claim 1, it is characterised in that: the middle part of the piston rod is equipped with limit
Slot fixes restraining position ring block in limiting slot, and stop collar blocks the top of limit sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821612513.8U CN209164467U (en) | 2018-09-30 | 2018-09-30 | Variable diameter piston damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821612513.8U CN209164467U (en) | 2018-09-30 | 2018-09-30 | Variable diameter piston damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209164467U true CN209164467U (en) | 2019-07-26 |
Family
ID=67332810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821612513.8U Active CN209164467U (en) | 2018-09-30 | 2018-09-30 | Variable diameter piston damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209164467U (en) |
-
2018
- 2018-09-30 CN CN201821612513.8U patent/CN209164467U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |