CN207246548U - A kind of through-type combined liquid pressure damping element - Google Patents
A kind of through-type combined liquid pressure damping element Download PDFInfo
- Publication number
- CN207246548U CN207246548U CN201720857143.3U CN201720857143U CN207246548U CN 207246548 U CN207246548 U CN 207246548U CN 201720857143 U CN201720857143 U CN 201720857143U CN 207246548 U CN207246548 U CN 207246548U
- Authority
- CN
- China
- Prior art keywords
- spool
- valve pocket
- damping
- damping hole
- hole
- 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.)
- Active
Links
Landscapes
- Details Of Valves (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses a kind of through-type combined liquid pressure damping element, including valve pocket and the spool being arranged in valve pocket, the inlet of the valve pocket lower end is disposed with fixed damping hole and adjustable damping hole from outside to inside, adjustable damping hole is connected with the liquid outlet in sleeve side wall, adjusting nut is installed with valve pocket upper end, connected in the threaded upper ends of adjusting nut and adjusting screw rod, spring is provided between the lower end of adjusting screw rod and spool, spool can slide in valve pocket, and the conical surface and the sealing of adjustable damping hole of spool lower end coordinate.The flared structure that the utility model is designed to have certain area gradient in fixed damping port liquid feeding end, can alleviate fluid impact flow；Secondly, at variable restrictor damping port, in addition to having the throttling runner that certain gap is formed between spool and valve seat, by designing spool upper and lower side effective active area ratio, damping force can be formed and finely tuned.
Description
Technical field
A kind of through-type combined liquid pressure damping element is the utility model is related to, belongs to technical field of hydraulic.
Background technology
For engineering machinery hydraulic control system under high voltage variable load behavior, work is unstable.Therefore, need to set in system and hinder
Buddhist nun's element, but existing damping element structure type is single, and there are problems with：First, in high voltage variable load scenarios, damping member
For damping hole to realize damping vibration attenuation, fluid can produce throttling fever phenomenon in part；Secondly, to realize damping vibration attenuation function, usually
Orifice size design is smaller, oil quality is required high；3rd, the structure type of damping hole and runner, size etc. are to system
The influence of vibration damping is very big, to adjust damping in many cases to solve jitter problem, but single fixed damping hole is difficult to realize.
Utility model content
The purpose of this utility model is that, there is provided a kind of compact-sized, working stability, the through-type combined type of pressure adjustable
Hydraulic dampening element, with overcome the deficiencies in the prior art.
The technical solution of the utility model：A kind of through-type combined liquid pressure damping element, including valve pocket and be arranged on
Spool in valve pocket, the inlet of the valve pocket lower end are disposed with fixed damping hole and adjustable damping hole from outside to inside, can
Adjust damping hole to be connected with the liquid outlet in sleeve side wall, adjusting nut is installed with valve pocket upper end, in adjusting nut with adjusting
The threaded upper ends connection of screw rod is saved, spring is provided between the lower end of adjusting screw rod and spool, spool can slide in valve pocket, valve
The conical surface of core lower end coordinates with the sealing of adjustable damping hole.
Further, the liquid feeding end of the fixed damping hole is flared structure.
Further, it is provided with throttling runner at the adjustable damping hole.
Further, " ten " font through hole is provided with the spool.
Further, the spring stretch into spool and with spool Elastic Contact.
Due to the adoption of the above technical scheme, the utility model has the advantage of：The utility model is in fixed damping port feed liquor
End is designed to the flared structure with certain area gradient, can alleviate fluid impact flow；Secondly, in variable restrictor damping port
Place, in addition to having the throttling runner that certain gap is formed between spool and valve pocket, by designing spool upper and lower side effective active area
Than that can be formed and finely tuned to damping force；3rd, in the settable orifice spool other end, set and adjust spring and adjusting mechanism, pass through
The adjustment effect that spool adaptively moves up and down, can suppress the pulsation of runner liquid stream again.In addition, the utility model is variable
It machined two orthogonal through holes on the spool of damping hole, fluid introduced into spool upper end, utilizes the pressure of spool upper and lower side
Force difference plays the role of fine setting to the openings of sizes in adjustable damping hole.
Brief description of the drawings
Fig. 1 is the sectional view of the structure diagram of the utility model.
Description of reference numerals：1- fixes damping hole, 2- adjustable dampings hole, 3- springs, 4- spools, 5- adjusting screw rods, 6- valves
Set, 7- adjusting nuts, 8- " ten " font through hole, 9- throttling runners, O- liquid outlets, I- inlets.
Embodiment
In order to make the utility model aim, technical solution and advantage clearer, with reference to the accompanying drawings and examples to this
Utility model is described in further detail.
The structure diagram of the through-type combined liquid pressure damping element of the utility model as shown in Figure 1, including valve pocket 6 with
And the spool 4 in valve pocket 6 is arranged on, the inlet I of 6 lower end of valve pocket is disposed with fixed 1 He of damping hole from outside to inside
Adjustable damping hole 2, adjustable damping hole 2 are connected with the liquid outlet O on 6 side wall of valve pocket, and adjusting spiral shell is installed with 6 upper end of valve pocket
Mother 7, is connected with the threaded upper ends of adjusting screw rod 5 in adjusting nut 7, spring is provided between the lower end of adjusting screw rod 5 and spool 4
3, the spring 3 stretch into spool 4 and with 4 Elastic Contact of spool；Spool 4 can slide in valve pocket 6, the conical surface of 4 lower end of spool
Seal and coordinate with adjustable damping hole 2.Therefore, spring 3 and adjusting mechanism are set in 4 other end of spool of settable orifice 2, pass through
The adjustment effect that spool 4 adaptively moves up and down, can suppress the pulsation of runner liquid stream again.
Further, the liquid feeding end of the fixed damping hole 1 is flared structure, can alleviate fluid impact flow.
Further, throttling runner 9 is provided with the adjustable damping hole 2, therefore, at variable restrictor damping port, except having
Formed between spool 4 and valve pocket 6 outside the throttling runner 9 in certain gap, by designing 4 upper and lower side effective active area ratio of spool,
Damping force can be formed and finely tuned.
Further, two orthogonal " ten " font through holes 8 are provided with the spool 4, fluid is introduced on spool 4
End, the pressure differential using 4 upper and lower side of spool play the role of fine setting to the openings of sizes in adjustable damping hole 2.
Claims (5)
1. a kind of through-type combined liquid pressure damping element, including valve pocket (6) and the spool (4) that is arranged in valve pocket (6), its
It is characterized in that：The inlet (I) of valve pocket (6) lower end is disposed with fixed damping hole (1) and adjustable damping from outside to inside
Hole (2), adjustable damping hole (2) are connected with the liquid outlet (O) on valve pocket (6) side wall, and adjusting is installed with valve pocket (6) upper end
Nut (7), is connected in adjusting nut (7) with the threaded upper ends of adjusting screw rod (5), the lower end of adjusting screw rod (5) and spool (4) it
Between be provided with spring (3), spool (4) can slide in valve pocket (6), and the conical surface and adjustable damping hole (2) of spool (4) lower end seal
Coordinate.
2. through-type combined liquid pressure damping element according to claim 1, it is characterised in that：The fixed damping hole
(1) liquid feeding end is flared structure.
3. through-type combined liquid pressure damping element according to claim 1, it is characterised in that：The adjustable damping hole
(2) place is provided with throttling runner (9).
4. through-type combined liquid pressure damping element according to claim 1, it is characterised in that：Set on the spool (4)
It is equipped with " ten " font through hole (8).
5. through-type combined liquid pressure damping element according to claim 2, it is characterised in that：The spring (3) is stretched into
In spool (4) and with spool (4) Elastic Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720857143.3U CN207246548U (en) | 2017-07-14 | 2017-07-14 | A kind of through-type combined liquid pressure damping element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720857143.3U CN207246548U (en) | 2017-07-14 | 2017-07-14 | A kind of through-type combined liquid pressure damping element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207246548U true CN207246548U (en) | 2018-04-17 |
Family
ID=61877644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720857143.3U Active CN207246548U (en) | 2017-07-14 | 2017-07-14 | A kind of through-type combined liquid pressure damping element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207246548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547820A (en) * | 2018-07-16 | 2018-09-18 | 贵州大学 | A kind of box-like orifice valve of pressure difference control group |
| CN110296243A (en) * | 2019-06-21 | 2019-10-01 | 安徽红星阀门有限公司 | High-flow air-exhaust valve |
-
2017
- 2017-07-14 CN CN201720857143.3U patent/CN207246548U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547820A (en) * | 2018-07-16 | 2018-09-18 | 贵州大学 | A kind of box-like orifice valve of pressure difference control group |
| CN110296243A (en) * | 2019-06-21 | 2019-10-01 | 安徽红星阀门有限公司 | High-flow air-exhaust valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207246548U (en) | A kind of through-type combined liquid pressure damping element | |
| CN106090362B (en) | A kind of direct-acting overflow valve | |
| CN106763882B (en) | A kind of adjustable single-sided film flow controller of precompressed | |
| CN106245781B (en) | Frictional force adjustable type friction pendulum slip support abutment | |
| CN105114513B (en) | Speed and displacement dual-lock pressure-limiting type viscous damper | |
| CN104613036A (en) | Noise reduction overflow valve with hydrodynamic force balancing and adjustable damping functions | |
| CN106246975B (en) | A kind of fluid flow constant control device | |
| CN205859278U (en) | A kind of direct-acting overflow valve | |
| CN107725523A (en) | Load sensing multi-way valve and there is its engineering machinery | |
| CN205278424U (en) | Uninstallation is with small flow choke valve | |
| CN106837940B (en) | The suppression servo valve self-oscillation device of adjustable orifice area | |
| CN205978679U (en) | Ultrahigh pressure relief valve | |
| CN206468614U (en) | A kind of low-loss and the guide type sequence valve of vibration damping | |
| CN204921827U (en) | Speed displacement twin -lock voltage limiting formula viscous damper | |
| CN204828804U (en) | Check valve with adjustable | |
| CN204942128U (en) | A kind of bidirectional damper valve arrangement | |
| CN106286918A (en) | Ultra-high-pressure overflow valve | |
| CN108662222A (en) | A kind of pilot-operated type threeway proportional pressure-reducing valve | |
| CN108302076A (en) | A kind of electro-hydraulic proportional servo valve using by-pass throttle | |
| CN104895857B (en) | Low noise cone valve | |
| CN107479585B (en) | Critical flow venturi nozzle based on mechanical choking principle | |
| CN207830255U (en) | A kind of electro-hydraulic proportional servo valve using by-pass throttle | |
| CN203717511U (en) | Mass flow overflow structure for pump station overflow valve | |
| CN107975508A (en) | Orifice valve | |
| CN106704283A (en) | Low-loss damping pilot-type sequence valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |