CN206352633U - Rate-sensitive type shock absorber - Google Patents
Rate-sensitive type shock absorber Download PDFInfo
- Publication number
- CN206352633U CN206352633U CN201621299408.4U CN201621299408U CN206352633U CN 206352633 U CN206352633 U CN 206352633U CN 201621299408 U CN201621299408 U CN 201621299408U CN 206352633 U CN206352633 U CN 206352633U
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- CN
- China
- Prior art keywords
- hole
- piston
- piston rod
- expansion link
- spring
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of rate-sensitive type shock absorber, including cylinder body, piston, piston rod and regulating valve, regulating valve is located in piston rod；Piston is provided with some first through hole, and the centre of first through hole is small area hole, and the two ends in small area hole gradually outwards expand, and small area hole is provided with the second through hole to side face；The inwall of piston rod is provided with third through-hole, and the side face of piston rod is provided with some fourth holes；Regulating valve includes valve body, electromagnet, spring and expansion link, and one end of the expansion link is provided with round table-like head, and round table-like head is provided with disk against third through-hole, the other end of expansion link, and electromagnet, spring and expansion link are installed in valve body；The outer peripheral face of valve body is provided with flange, and flange is provided with some fifth holes.This shock absorbers compression stroke can adjust different damping forces from stretching travel, can prevent that piston from occurring mechanical wear and biasing is stuck, expansion link, spring, electromagnet can realize the different corresponding relations of damping force correspondence movement velocity.
Description
Technical field
The utility model is related to damping vibration attenuation device, and in particular to a kind of rate-sensitive type shock absorber.
Background technology
The ride control shock absorber of regulation hydraulic oil viscosity coefficient has at present：Electrorheological fluid vibration damper, magnetic current flowing deformation vibration-damping
Device.The ride control shock absorber of regulation choke area has：Mechanical damping adjustable shock absorber, gas control damping adjustable damping
Device, solenoid valve control ride control shock absorber and motor control ride control shock absorber etc..But these ride control shock absorbers are all
There is the deficiency in terms of the costs such as governor motion complexity and reliability.
Utility model content
In order to solve above-mentioned technical problem, the utility model provides a kind of rate-sensitive type shock absorber, compression travel
Different damping forces are can adjust from stretching travel, can prevent piston from occurring mechanical wear and bias stuck, expansion link, spring, electricity
Magnet can realize the different corresponding relations of damping force correspondence movement velocity, you can machinery adjustment, also can Electronic Control adjustment.
The scheme that the utility model solves above-mentioned technical problem is as follows：
Rate-sensitive type shock absorber, including cylinder body, piston, piston rod and regulating valve,
The piston and piston rod are located in cylinder body, and regulating valve is located in piston rod；
The piston is provided with some first through hole, and the centre of first through hole is small area hole, and the two ends in small area hole are gradually
Outwards expand, small area hole is provided with the second through hole to side face；
The inwall of the piston rod is provided with third through-hole, and the side face of piston rod is provided with some fourth holes；
The regulating valve includes valve body, electromagnet, spring and expansion link, and one end of the expansion link is provided with round table-like head,
Round table-like head is provided with disk against third through-hole, the other end of expansion link, and electromagnet, spring and expansion link are installed in valve body,
Spring one end heads on electromagnet, and the spring other end heads on disk；
The outer peripheral face of the valve body is provided with flange, and flange is provided with some fifth holes.
The piston end inwall of the cylinder body is provided with block rubber, and the tailpiece of the piston rod inwall of cylinder body is provided with disk spring.
Seal is provided between the piston rod and cylinder body.
The lead of the electromagnet passes through piston rod.
The utility model has the following advantages relative to prior art：
1st, expansion link two ends area is different, the compression travel damping force different from stretching travel generation.
2nd, the second through hole can produce hydrodynamic oil film, can prevent piston from occurring mechanical wear and biasing stuck.
3rd, expansion link, spring, electromagnet can realize the different corresponding relations of damping force correspondence movement velocity, you can machinery is adjusted
It is whole, also can Electronic Control adjustment.
Brief description of the drawings
Fig. 1 is the sectional view of rate-sensitive type shock absorber of the present utility model (expansion link is not extended out).
Fig. 2 is the sectional view (expansion link stretching) of rate-sensitive type shock absorber of the present utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
Rate-sensitive type shock absorber as depicted in figs. 1 and 2, including cylinder body 1, piston 6, piston rod 3 and regulating valve, piston
6 and piston rod 3 be located at cylinder body 1 in, regulating valve be located at piston rod 3 in；Piston 6 is provided with some first through hole c, first through hole c's
Centre is small area hole, and the two ends in small area hole gradually outwards expand, and small area hole is provided with the second through hole d to side face；Piston rod 3
Inwall be provided with third through-hole b, the side face of piston rod 3 is provided with some fourth hole e；Regulating valve includes valve body 5, electromagnet 7, bullet
Spring 11 and expansion link 4, one end of expansion link 4 provided with round table-like first 12, round table-like first 12 against third through-hole b, expansion link 4 it is another
One end is provided with disk 13, and electromagnet 5, spring 11 and expansion link 4 are installed in valve body 5, and the one end of spring 11 heads on electromagnet 5, bullet
The other end of spring 11 heads on disk 13；The outer peripheral face of valve body 5 is provided with flange 14, and flange 14 is provided with some fifth hole a.Cylinder
The piston end inwall of body 1 is provided with block rubber 2, and the tailpiece of the piston rod inwall of cylinder body 1 is provided with disk spring 8.Piston rod 3 and cylinder body 1 it
Between be provided with seal 9.The lead 10 of electromagnet 7 passes through piston rod 3, and the lead of electromagnet 7 is embedded to piston rod inner by piston rod
Drawn outside right-hand member, connect controller.
The oil circuit of this shock absorber：
This shock absorber can be used for needing to produce the occasion of damping force between various moving components, and piston rod 3 is screw thread with piston 6
Connection, integrally neatly can be moved back and forth in cylinder body 1.Cylinder body 1 is divided into L and the chambers of R two by piston 6；Two chambers are full of hydraulic oil,
When reciprocating motion of the pistons, hydraulic oil can be flowed by following twice oil circuit：
1st, piston hole system：The first through hole c of several circumference uniform distributions is provided with piston.
2nd, piston rod endoporus system：Hollow structure is designed as in this piston rod, the regulating valve structure of uniqueness is designed with.Expansion link
Under double Action of Gravity Field by electromagnet and spring, it is possible to achieve stretch out or retract.
The course of work of this shock absorber：
First, when piston rod is to left movement, it is compressed stroke：
L chamber volumes diminish, and pressure is uprised, and hydraulic oil is divided into two-way and passes through piston hole system (oil circuit one) and piston rod endoporus system
(oil circuit two), specific oil circuit is as follows：
Oil circuit one：L chambers hydraulic oil produces throttle resistance by first through hole c, so that damping force effect is externally produced, note
Anticipate and arrive, first through hole c is designed as both ends open greatly, the small throat tubular construction in middle part.Small area hole is provided with the second through hole d, works as hydraulic pressure
It is oily at a high speed by first through hole c middle when, because flow area reduces, according to bernoulli principle, pressure herein can be anxious
Sharp fall is low, so that the second through hole d produces " vacuum " suction, beneficial effect is that " vacuum " suction can be in piston and cylinder body gap
Between suck certain hydrodynamic oil film, the overall lubrication on the piston face of cylinder is formed, so as to prevent piston from occurring mechanical wear and biasing
Stuck situation occurs.
Oil circuit two：L chambers hydraulic oil enters piston rod inner by piston rod left end third through-hole b, and then through fifth hole
A, fourth hole e flow into R chambers.In this three hole, only fifth hole a orifice sizes are smaller, can produce certain damping force, now, stretch
Contracting bar 4 is in retracted mode under the action of the spring.The no power of electromagnet 7, to expansion link 4 without pulling effect.
Generally speaking, in compression travel, because hydraulic oil can walk two oil circuits simultaneously, therefore total flow area is larger, production
Raw damping force is smaller, can meet the small occasion of compression travel damping force and use.
The general electromagnet 7 of compression travel does not work, if needed the situation of larger compression damping power, also can be to electromagnet 7
It is powered, pulls expansion link 4 and move to left closing third through-hole b to realize.
When piston movement is to cylinder base, block rubber 2 can play cushioning effect.
2nd, when piston rod is moved right, stretching travel is carried out：
Oil circuit one：Piston hole system oil circuit is identical during with compression travel.Now, the second through hole d can equally produce hydraulic oil
Film.
Oil circuit two：The hydraulic oil of R chambers flows into piston rod cavity, it is noted that work as liquid by the fourth hole e of piston rod side
When force feed continues flow through fifth hole a, according to fluid mechanics principle, the effect of expenditure and pressure, i.e. fifth hole a left ends must be produced
Pressure be less than the pressure of right-hand member, i.e. fifth hole a both sides generate pressure difference dp, and this differential pressure action is in the right-hand member area of expansion link 4
On.
When piston movement speed is accelerated, known according to Q=v*A, speed senior general produces bigger flow, bigger flow production
Raw bigger pressure difference dp.When speed reaches certain value, it is flexible that the pressure difference dp that corresponding flow is produced will overcome spring force to force
Bar 4 is moved to the left, and most at last third through-hole b is closed, now, this oil circuit closing of stretching travel, and hydraulic oil can only be through work
First through hole c circulations beyond the Great Wall.Therefore total flow area reduces, larger stretching damping force will be produced, meet stretching damping force
Big application requirements.
When piston runs to cylinder body right-hand member, disk spring 8 can play cushioning effect, and the axial dimension of disk spring 8 is smaller, just
In arrangement.
For compression travel and stretching travel, it can be adjusted in the following way：
1st, the rigidity or pre compressed magnitude of adjustment spring, you can obtain the different switch pressure difference dp of expansion link 4, namely correspondence is not
With piston movement speed, in other words, it is necessary to which hard spring can be used in big damping force during high speed, big resistance can be used during low velocity
Slinky spring, can realize friction speed-damping force relation, damping force is automatically controlled so as to realize.
2nd, controller by lead 10 to electromagnet 7 to being powered, the size of electric current, different electricity will be produced to expansion link 4
Magnetic pulling force, electric current is big, pull power it is big when, even if fifth hole a or so pressure difference dp very littles (when piston movement speed is smaller), the
Three through hole b will also be closed, and produce the big damping force of low speed.Shock absorber is realized to automatically control piston speed change high sensitivity.
Electromagnetism, which pulls power, can match different-stiffness spring, produce multiple combinations effect, can the different piston movement speed of automatic sensing,
By being opened and closed third through-hole b, so as to realize the difference correspondence pass of damping force correspondence movement velocity, i.e. velocity sensitization type.
Above-mentioned is the utility model preferably embodiment, but embodiment of the present utility model is not by the above
Limitation, it is other it is any without departing from Spirit Essence of the present utility model and the change made under principle, modification, replacement, combine, it is simple
Change, should be equivalent substitute mode, be included within protection domain of the present utility model.
Claims (4)
1. rate-sensitive type shock absorber, it is characterised in that：Including cylinder body, piston, piston rod and regulating valve,
The piston and piston rod are located in cylinder body, and regulating valve is located in piston rod；
The piston is provided with some first through hole, and the centre of first through hole is small area hole, and the two ends in small area hole are gradually outside
Expand, small area hole is provided with the second through hole to side face；
The inwall of the piston rod is provided with third through-hole, and the side face of piston rod is provided with some fourth holes；
The regulating valve includes valve body, electromagnet, spring and expansion link, and one end of the expansion link is provided with round table-like head, round platform
Shape head is provided with disk against third through-hole, the other end of expansion link, and electromagnet, spring and expansion link are installed in valve body, spring
One end heads on electromagnet, and the spring other end heads on disk；
The outer peripheral face of the valve body is provided with flange, and flange is provided with some fifth holes.
2. rate-sensitive type shock absorber according to claim 1, it is characterised in that：The piston end inwall of the cylinder body is provided with
Block rubber, the tailpiece of the piston rod inwall of cylinder body is provided with disk spring.
3. rate-sensitive type shock absorber according to claim 1, it is characterised in that：It is provided between the piston rod and cylinder body
Seal.
4. rate-sensitive type shock absorber according to claim 1, it is characterised in that：The lead of the electromagnet passes through piston
Bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621299408.4U CN206352633U (en) | 2016-11-29 | 2016-11-29 | Rate-sensitive type shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621299408.4U CN206352633U (en) | 2016-11-29 | 2016-11-29 | Rate-sensitive type shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206352633U true CN206352633U (en) | 2017-07-25 |
Family
ID=59347663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621299408.4U Withdrawn - After Issue CN206352633U (en) | 2016-11-29 | 2016-11-29 | Rate-sensitive type shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206352633U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523576A (en) * | 2016-11-29 | 2017-03-22 | 广东机电职业技术学院 | Speed sensitive type absorber |
| CN108180250A (en) * | 2018-01-22 | 2018-06-19 | 华东交通大学 | A kind of built-in magnet valve improves the two-wire ring MR damper of damping capacity |
| CN110425245A (en) * | 2019-07-22 | 2019-11-08 | 成都博仕腾科技有限公司 | A kind of rolling stock half active oil-pressure damper of double oil circuits switching regulator adaptive damping |
| CN114867214A (en) * | 2022-06-02 | 2022-08-05 | 吉安满坤科技股份有限公司 | Vehicle-mounted printed circuit board processing method for preventing orifice from sinking |
-
2016
- 2016-11-29 CN CN201621299408.4U patent/CN206352633U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523576A (en) * | 2016-11-29 | 2017-03-22 | 广东机电职业技术学院 | Speed sensitive type absorber |
| CN108180250A (en) * | 2018-01-22 | 2018-06-19 | 华东交通大学 | A kind of built-in magnet valve improves the two-wire ring MR damper of damping capacity |
| CN110425245A (en) * | 2019-07-22 | 2019-11-08 | 成都博仕腾科技有限公司 | A kind of rolling stock half active oil-pressure damper of double oil circuits switching regulator adaptive damping |
| CN114867214A (en) * | 2022-06-02 | 2022-08-05 | 吉安满坤科技股份有限公司 | Vehicle-mounted printed circuit board processing method for preventing orifice from sinking |
| CN114867214B (en) * | 2022-06-02 | 2023-06-09 | 吉安满坤科技股份有限公司 | Processing method of vehicle-mounted printed circuit board capable of preventing orifice from sinking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170725 Effective date of abandoning: 20180907 |
|
| AV01 | Patent right actively abandoned |