CN208381184U - A kind of hydraulic shock-absorption piston and hydraulic damper with guide effect - Google Patents
A kind of hydraulic shock-absorption piston and hydraulic damper with guide effect Download PDFInfo
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- CN208381184U CN208381184U CN201820626160.0U CN201820626160U CN208381184U CN 208381184 U CN208381184 U CN 208381184U CN 201820626160 U CN201820626160 U CN 201820626160U CN 208381184 U CN208381184 U CN 208381184U
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- piston
- throttling channel
- hydraulic shock
- absorption
- guide
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Abstract
A kind of hydraulic shock-absorption piston and hydraulic damper with guide effect, belongs to hydraulic shock-absorption technical field.Including piston cylinder (3), piston rod (1) one end connects piston only (5), the other end is drawn from piston cylinder (3) port, piston rod (1) drives piston only (5) to move back and forth in piston cylinder, it is characterized by: being vertically arranged at least one guide way in piston cylinder (3) bottom, guide way is vertically arranged in the side of piston rod (1), and guide rod passes through piston only (5) from bottom to top;It is offered on guide way throttling channel (4), piston only (5) cooperatively forms the circulation passage of hydraulic oil with throttling channel (4), and the area of circulation passage is sequentially reduced from center to two sides.In hydraulic shock-absorption piston and the hydraulic damper that this has guide effect, by the way that throttling channel is arranged, plays and slow down damping effect, while guide way is set, play guiding role during piston motion.
Description
Technical field
A kind of hydraulic shock-absorption piston and hydraulic damper with guide effect, belongs to hydraulic shock-absorption technical field.
Background technique
Hydraulic shock-absorption is a kind of common damping modes of automotive field.In the output end and ontology point of automobile hydraulic shock-damping device
It is not mounted on vehicle body and wheel, shock absorber piston is provided in automobile absorber, on automobile occurs in the process of moving
When lower vibration, piston moves back and forth in piston cylinder, valve block mechanism is provided in piston, therefore when reciprocating motion of the pistons,
Hydraulic oil positioned at piston two sides can back and forth flow through piston by the flowing hole on piston with the direction opposite with piston, thus
Play cushioning effect.
In the prior art, the movement speed of piston and the degree of automobile are directly proportional in automobile absorber, i.e. the shake of automobile
Dynamic amplitude is bigger, and the speed of reciprocating motion of the pistons is faster, and the speed for the piston that hydraulic oil flows through is also faster.However automobile is travelling
The case where will appear vibration mutation in the process, is occurring if wheel touches biggish barrier or wheel precepitates into hole
When above situation, become larger rapidly in the spacing short time between vehicle body and wheel, thus in this case piston still according to
The shock conditions of vehicle body carry out damping adjusting, then the spacing suddenly change for being easy to will appear between wheel and vehicle body and make automobile
Be damaged, in the prior art, by electric-control system may be implemented the variation of pressure short time very greatly when to the stream of hydraulic oil
Measure the effect that is controlled, but electric-control system price is costly and control process is complex.Therefore a kind of pressing is designed
Power increases to that flow after certain value will slowly increase or flow remains unchanged, and the automobile hydraulic shock-damping device even reduced becomes
Urgent problem to be solved at present.
Summary of the invention
Technical problem to be solved by the utility model is: overcoming the deficiencies of the prior art and provide a kind of by setting throttling
Slot plays and slows down damping effect, while guide way is arranged, and that guiding role is played during piston motion has guiding
The hydraulic shock-absorption piston and hydraulic damper of effect.
The technical scheme adopted by the utility model to solve the technical problem is as follows: this has the hydraulic shock-absorption of guide effect living
Plug is provided with piston only, piston rod one end connects piston only, another including the piston cylinder full of hydraulic oil in piston cylinder
End is drawn from piston cylinder port, and piston rod drives piston only to move back and forth in piston cylinder, it is characterised in that: at piston cylinder bottom
Portion is vertically arranged at least one guide way, and guide way is vertically arranged in the side of piston rod, and guide way passes through work from bottom to top
Plug body;Throttling channel is offered on guide way, piston only and throttling channel cooperatively form the circulation passage of hydraulic oil, and circulation is logical
The area in road is sequentially reduced from center to two sides.
Preferably, the guide way is guiding axis, and guiding axis is solid shafting, and the throttling channel is axially opened along guiding axis
If on its external wall.
Preferably, the throttling channel includes flow equalization section and restriction portion, and flow equalization section is the groove of uniform depth, and restriction portion is certainly
The both ends of flow equalization section extend to two outsides to be opened up, and restriction portion is domatic groove shallow outside interior depth.
Preferably, the axial length of the flow equalization section is longer than the thickness of piston only.
Preferably, the throttling channel is the groove of uniform depth, and throttling channel is uniformly provided on the outer wall of guiding axis
A plurality of, a plurality of throttling slot length is different, and the middle line of a plurality of throttling channel is located on same circumference.
Preferably, the guide way is guiding axis, and guiding axis is hollow shaft, and the throttling channel is along guiding axis axial direction
Open up and penetrate the penetrating slot of guiding axis axial wall.
Preferably, the throttling channel is uniformly provided with a plurality of in the border of guiding axis, and a plurality of throttling slot length is different, and
The middle line of a plurality of throttling channel is located on same circumference.
Preferably, the guide way is guide plate, and the throttling channel is the penetrating slot for penetrating guide plate.
Preferably, the normal open hole axially penetrated through is offered on the piston only.
A kind of hydraulic damper, it is characterised in that: be set with damper outer cylinder in the outer side seal of the piston cylinder, subtract
Interval forms the outer oil cavity of damper between shake device outer cylinder and piston cylinder, and piston cylinder bottom is connected to damper outer cylinder.
Compared with prior art, beneficial effect possessed by the utility model is:
In hydraulic shock-absorption piston and the hydraulic damper that this has guide effect, by the way that throttling channel is arranged, plays and subtract
Slow damping effect, while guide way is set, guiding role is played during piston motion.
When significant shock occurs between body of a motor car and wheel set, piston only can be under the drive of piston rod in work
It fills in intracavitary generation significantly to move, the restriction portion being gradually moved into throttling channel, since the depth of restriction portion is sequentially reduced,
With piston only in plunger shaft to mobile at the end, i.e. liquid fewer and fewer with the quantity of the throttling channel of piston only cooperation
The flow area of pressure oil is smaller and smaller, therefore plays the effect for slowing down damping level.
Although can also set hollow for piston rod, guide way realizes throttling with piston rod, by piston rod
It opens up its technology difficulty for hollow structure to greatly increase, therefore increases the cost of product to a certain extent.
Detailed description of the invention
Fig. 1 is 1 structural schematic diagram of hydraulic shock-absorption piston embodiment with guide effect.
Fig. 2 is the hydraulic damper structural schematic diagram with guide effect.
Fig. 3 is 2 structural schematic diagram of hydraulic shock-absorption piston embodiment with guide effect.
Fig. 4 is 3 structural schematic diagram of hydraulic shock-absorption piston embodiment with guide effect.
Fig. 5 is 4 structural schematic diagram of hydraulic shock-absorption piston embodiment with guide effect.
Fig. 6 is 5 structural schematic diagram of hydraulic shock-absorption piston embodiment with guide effect.
Fig. 7 is 6 structural schematic diagram of hydraulic shock-absorption piston embodiment with guide effect.
Fig. 8 is 7 structural schematic diagram of hydraulic shock-absorption piston embodiment with guide effect.
Fig. 9 is 8 structural schematic diagram of hydraulic shock-absorption piston embodiment with guide effect.
Wherein: 1, piston rod 2, guiding axis 3, piston cylinder 4, throttling channel 5, piston only 6, damper outer cylinder
7, guide plate.
Specific embodiment
Fig. 1 ~ 2 are the most preferred embodiments of the utility model, and 1 ~ 9 pair of the utility model is done furtherly with reference to the accompanying drawing
It is bright.
As shown in Figure 1, a kind of hydraulic shock-absorption piston with guide effect, including piston cylinder 3, piston cylinder 3 are two end seals
The cylinder closed is plunger shaft in the inner cavity of piston cylinder 3, is filled with hydraulic oil in plunger shaft.Piston sheet is provided in plunger shaft
Body 5, piston only 5 are contacted with plunger shaft inner tight, and two oil pockets up and down will be divided between plunger shaft.The connection of 1 one end of piston rod
At the center of piston only 5, the other end from 3 any end of piston cylinder draw, piston only 5 under the drive of piston rod 1
It is moved back and forth in plunger shaft.
It is vertically arranged with guiding axis 2 in the bottom of piston cylinder 3, guiding axis 2 is located at the side of piston rod 1, guiding axis 2 in parallel
Piston only 5 is passed through from bottom to top, and piston only 5 is fitted closely with guiding axis 2.Guiding axis 2 preferably uses solid cylindrical
Axis, and in the present embodiment, guiding axis 2 is provided with one.
One group of throttling channel 4 is offered on the surface of guiding axis 2, throttling channel 4 is uniformly provided with guiding along the axial direction of guiding axis 2
On the outer wall of axis 2, the axial isometric and middle line of all throttling channels 4 is located on the same circumference.Throttling channel 4 includes equal at center
Section and the restriction portion positioned at flow equalization section two sides are flowed, the initial position of piston only 5, the axis of flow equalization section will be defined as at flow equalization section
It is longer than the thickness of piston only 5 to length, flow equalization section is the groove of uniform depth.Restriction portion respectively from the outer end of flow equalization section towards
The outside of respective end is extended, and depth is sequentially reduced to form domatic groove.Piston only 5 and 4 company of cooperatively forming of throttling channel
The channel of logical about 5 two sides oil pocket of piston only.
Specific work process and working principle are as follows:
Piston rod 1 and piston cylinder 3 are separately fixed at the vehicle body and wheel set of automobile, when vehicle body and wheel set
When slight vibration occurs in place, relatively moved between piston rod 1 and piston cylinder 3, piston only 5 is in throttling channel 4 at this time
It is moved in the length range of flow equalization section, in the process of moving, the hydraulic oil in plunger shaft can pass through throttling channel 4 to piston only 5
Flow to its other side from the side of piston only 5, hydraulic oil during flowing through throttling channel 4 its circulation area by throttling channel
The movement speed of 4 limitation, piston only 5 reduces, it is achieved that damping effect.
When between body of a motor car and wheel set occur significant shock when, piston only 5 can under the drive of piston rod 1
Occur significantly to move in plunger shaft, the restriction portion being gradually moved into throttling channel 4, since the depth of restriction portion is sequentially reduced,
Therefore with piston only 5 in plunger shaft to mobile at the end, i.e. the flow area of hydraulic oil is smaller and smaller, therefore plays
Slow down the effect of damping level.
As shown in Fig. 2, being set with damper outer cylinder 6 in the outside of piston cylinder 3, the hydraulic shock-absorption for being provided with guiding axis is formed
Device, inner cylinder of the piston cylinder 3 as hydraulic damper at this time, at 6 upper port of damper outer cylinder with 3 sealed set of piston cylinder, damping
Interval forms the outer oil cavity of hydraulic damper between device outer cylinder 6 and piston cylinder 3, and the plunger shaft in piston cylinder 3 becomes hydraulic shock-absorption
The interior oil pocket of device, the connection in the setting of the bottom of piston cylinder 3 conventional through-hole or valve body are realized between oil pocket and outer oil cavity.
When carrying out vehicle body damping, can use the hydraulic shock-absorption piston with guide effect and be implemented separately also be can use
Hydraulic damper with guide effect is realized.
Embodiment 2:
The present embodiment the difference from embodiment 1 is that: as shown in figure 3, in the present embodiment, throttling channel 4, which does not use, to flow
The mode of section and restriction portion cooperation, and use wide groove.The length of all throttling channels 4 is different, therefore the shifting of piston only 5
When dynamic range is larger, the quantity of the matched throttling channel 4 for forming runner is gradually reduced, therefore also plays smaller hydraulic oil stream
The effect of logical area, further slows down damping level.
Embodiment 3:
The present embodiment the difference from embodiment 1 is that: as shown in figure 4, in the present embodiment, throttling channel 4, which does not use, to flow
The mode of section and restriction portion cooperation, and use wide groove.The length of all throttling channels 4 is identical.Throttling channel 4 is along guiding axis 2
Be divided axially into multistage, and each section of ecto-entad depth is sequentially reduced and the quantity be connected is sequentially reduced, therefore piston only 5
In moving process, throttling is realized to hydraulic oil from conducting quantity, therefore also play smaller hydraulic oil circulation area
Effect further slows down damping level.
Embodiment 4:
The present embodiment the difference from embodiment 1 is that: as shown in figure 5, in the present embodiment, throttling channel 4 is along guiding axis 2
It is divided axially into multistage, and each section of ecto-entad depth is sequentially reduced and the quantity be connected is sequentially reduced, therefore piston only 5 exists
In moving process, while throttling is realized to hydraulic oil from conducting quantity and depth of groove, therefore also play smaller hydraulic
The effect of oily circulation area, further slows down damping level.
Embodiment 5:
The present embodiment the difference from embodiment 1 is that: as shown in fig. 6, in the present embodiment, guiding axis 2 is hollow design,
The throttling channel 4 being provided on guiding axis 2 is the penetrating slot for penetrating 2 axial wall of guiding axis, and throttling channel 4 does not use flow equalization section and restriction portion
The mode of cooperation, and use wide groove and all throttling channels 4 length it is different, therefore the moving range of piston only 5 compared with
When big, the quantity of the matched throttling channel 4 for forming runner is gradually reduced, therefore also plays smaller hydraulic oil circulation area
Effect further slows down damping level.
Embodiment 6:
The present embodiment the difference from embodiment 1 is that: as shown in fig. 7, in the present embodiment, cancel guiding axis 2 and by plate
The guide plate 7 of shape realizes, guide plate 7 is fixed in piston cylinder 3 and parallel with piston rod 1 vertically, and throttling channel 4 is penetrates guide plate
7 penetrating slot, when mobile to two sides under drive of the piston only 5 in piston rod 1, the circulation area of hydraulic oil equally gradually subtracts
It is small, therefore also play the effect for slowing down damping level.
Embodiment 7:
The present embodiment the difference from embodiment 1 is that: as shown in figure 8, in the present embodiment, guiding axis 2 is provided with two,
The two sides of piston rod 1 are symmetricly set on, other quantity also can be set in guiding axis 2, when guiding axis 2 is provided with a plurality of, uniformly
It is distributed in the outer ring of piston rod 1 and also cross piston only 5.
Embodiment 8:
The present embodiment and the difference of embodiment 6 are: as shown in figure 9, in the present embodiment, guide plate 7 is fitted in piston
On the inner wall of cylinder 3, the notch cooperated with guide plate 7 is offered on piston only 5.
Embodiment 9:
The present embodiment the difference from embodiment 1 is that: in the present embodiment, open up and run through in the axial direction of piston only 5
Normal open hole, can play auxiliary oil liquid fluid effect.
The application can be any combination of above embodiments.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is all without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Matter any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the guarantor of technical solutions of the utility model
Protect range.
Claims (10)
1. a kind of hydraulic shock-absorption piston with guide effect, the piston cylinder (3) including being full of hydraulic oil, piston cylinder (3) is interior to be set
It is equipped with piston only (5), piston rod (1) one end connects piston only (5), and the other end is drawn from piston cylinder (3) port, piston rod
(1) piston only (5) are driven to move back and forth in piston cylinder, it is characterised in that: to be vertically arranged at least in piston cylinder (3) bottom
One guide way, guide way are vertically arranged in the side of piston rod (1), and guide way passes through piston only (5) from bottom to top;It is leading
It is offered on body throttling channel (4), piston only (5) cooperatively forms the circulation passage of hydraulic oil, circulation passage with throttling channel (4)
Area be sequentially reduced from center to two sides.
2. the hydraulic shock-absorption piston according to claim 1 with guide effect, it is characterised in that: the guide way is
Guiding axis (2), guiding axis (2) are solid shafting, and the throttling channel (4) axially opens up on its external wall along guiding axis (2).
3. the hydraulic shock-absorption piston according to claim 2 with guide effect, it is characterised in that: the throttling channel
It (4) include flow equalization section and restriction portion, flow equalization section is the groove of uniform depth, and restriction portion extends from the both ends of flow equalization section to two outsides
It opens up, restriction portion is domatic groove shallow outside interior depth.
4. the hydraulic shock-absorption piston according to claim 3 with guide effect, it is characterised in that: the axis of the flow equalization section
It is longer than the thickness of piston only (5) to length.
5. the hydraulic shock-absorption piston according to claim 2 with guide effect, it is characterised in that: the throttling channel
It (4) is the groove of uniform depth, throttling channel (4) is uniformly provided with a plurality of, a plurality of throttling channel (4) on the outer wall of guiding axis (2)
Length is different, and the middle line of a plurality of throttling channel (4) is located on same circumference.
6. the hydraulic shock-absorption piston according to claim 1 with guide effect, it is characterised in that: the guide way is
Guiding axis (2), guiding axis (2) are hollow shaft, and the throttling channel (4) is axially to open up along guiding axis (2) and penetrate guiding axis
(2) the penetrating slot of axial wall.
7. the hydraulic shock-absorption piston according to claim 6 with guide effect, it is characterised in that: the throttling channel
(4) it is uniformly provided in the border of guiding axis (2) a plurality of, a plurality of throttling channel (4) length is different, and in a plurality of throttling channel (4)
Line is located on same circumference.
8. the hydraulic shock-absorption piston according to claim 1 with guide effect, it is characterised in that: the guide way is
Guide plate (7), the throttling channel (4) are the penetrating slot for penetrating guide plate (7).
9. the hydraulic shock-absorption piston according to claim 1 with guide effect, it is characterised in that: in the piston sheet
The normal open hole axially penetrated through is offered on body (5).
10. hydraulic made of a kind of hydraulic shock-absorption piston using described in claim 1 ~ 9 any one with guide effect
Damper, it is characterised in that: be set with damper outer cylinder (6) in the outer side seal of piston cylinder (3), damper outer cylinder (6) and work
Interval forms the outer oil cavity of damper between plug tube (3), and piston cylinder (3) bottom is connected to damper outer cylinder (6).
Priority Applications (1)
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CN201820626160.0U CN208381184U (en) | 2018-04-28 | 2018-04-28 | A kind of hydraulic shock-absorption piston and hydraulic damper with guide effect |
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CN201820626160.0U CN208381184U (en) | 2018-04-28 | 2018-04-28 | A kind of hydraulic shock-absorption piston and hydraulic damper with guide effect |
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CN201820626160.0U Expired - Fee Related CN208381184U (en) | 2018-04-28 | 2018-04-28 | A kind of hydraulic shock-absorption piston and hydraulic damper with guide effect |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109695655A (en) * | 2019-01-21 | 2019-04-30 | 博耕管道支架(上海)有限公司 | A kind of hydraulic damper |
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2018
- 2018-04-28 CN CN201820626160.0U patent/CN208381184U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109695655A (en) * | 2019-01-21 | 2019-04-30 | 博耕管道支架(上海)有限公司 | A kind of hydraulic damper |
CN109695655B (en) * | 2019-01-21 | 2021-01-05 | 博耕管道支架(上海)有限公司 | Hydraulic damper |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20200428 |
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CF01 | Termination of patent right due to non-payment of annual fee |