CN207111569U - A kind of overflow valve - Google Patents
A kind of overflow valve Download PDFInfo
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- CN207111569U CN207111569U CN201721158686.2U CN201721158686U CN207111569U CN 207111569 U CN207111569 U CN 207111569U CN 201721158686 U CN201721158686 U CN 201721158686U CN 207111569 U CN207111569 U CN 207111569U
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- valve
- valve element
- valve seat
- oil pocket
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Abstract
It the utility model is related to hydraulic valve field, more particularly to a kind of overflow valve.Including valve seat, valve pocket, valve element and elastomeric element, the valve seat is connected with the valve pocket, the valve seat forms the oil pocket of one end perforate with the valve pocket, the valve element is slidably arranged inside the perforate, the elastomeric element is arranged on inside the oil pocket, the elastomeric element both ends can release formula with valve seat interior surface and the valve element respectively and offset, the axially disposed damped part for having connection oiler and the oil pocket of the valve element.Pass through the damped part in the axially disposed connection oiler of valve element and the oil pocket, the hydraulic oil that damped part allows to act on the outside of valve element enters the oil pocket of inner side by damped part, make there is hydraulic oil to communicate all the time inside and outside valve element, fluid jumpy is set gently to get off by damped part, and then reduce the impact that is subject to of valve element, to cut down the vibration and utter long and high-pitched sounds that impact brings.
Description
Technical field
It the utility model is related to hydraulic valve field, more particularly to a kind of overflow valve.
Background technology
At present, vibration and noise are one of common failures of hydraulic system in hydraulic system, and in hydraulic system, overflow valve was both
It is to provide pressure for hydraulic system and prevent the critical elements of system overload, is cause hydraulic system vibration and noise second again
Big root, therefore, vibration of the vibration cause of overflow valve to reduction hydraulic system is studied, ensure the normal work ten of hydraulic system
Divide significant.
In off-load because of the hurried decline of the pressure of hydraulic circuit compression shock noise can occur for overflow valve.More it is high pressure
The condition of work of Large Copacity, this impact noise is bigger, and this is due to that the unloading time of overflow valve is very short and produce hydraulic shock
Caused, because oil flow rate drastically changes, to cause pressure jump in off-load, the impact of build-up of pressure ripple, overflow Valve Vibration is violent,
And then utter long and high-pitched sounds.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of overflow valve, solves because overflow Valve Vibration produces howl
Cry and overflow valve is due to the problem of vibration causes to install the thread looseness of overflow valve.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of overflow valve, including valve seat, valve pocket, valve
Core and elastomeric element, the valve seat are connected with the valve pocket, and the valve seat forms the oil pocket of one end perforate with the valve pocket, described
Valve element is slidably arranged inside the perforate, and the elastomeric element is arranged on inside the oil pocket, the elastomeric element
Both ends can release formula with valve seat interior surface and the valve element respectively and offset, and the valve element is axially disposed connection oiler and institute
State the damped part of oil pocket.
Further, the damped part includes damping hole and damping silk, the damping hole connection oiler and the oil pocket,
The damping silk, which is fixed, to be located in inside the damping hole, and the diameter of the damping silk is less than the diameter of the damping hole.
Further, the damping hole is arranged at the axial centerline of the valve element.
Further, adjusting gasket, the adjusting gasket fixed setting are provided between the elastomeric element and the valve seat
In the valve seat upper inside surface, the adjusting gasket lower surface can release formula overlap joint with the elastomeric element upper end.
Further, the valve element upper end is provided with diameter more than the opening diameter and the positive stop of valve seat bore, institute
State positive stop to be fixedly connected with the valve element or integrally formed, the valve seat interior surface bottom, which is provided with, limits the limiting block
The annular stop section of block operating range, the positive stop are slidably arranged in the annular stop section.
Further, the elastomeric element is spring.
The utility model provides a kind of overflow valve, including valve seat, valve pocket, valve element and elastomeric element, the valve seat with it is described
Valve pocket is connected, and the valve seat forms the oil pocket of one end perforate with the valve pocket, and the valve element is slidably arranged to be opened installed in described
Inside hole, the elastomeric element is arranged on inside the oil pocket, the elastomeric element both ends respectively with valve seat interior surface and described
Valve element can release formula and offset, the axially disposed damped part for having connection oiler and the oil pocket of the valve element.So, pass through
In the axially disposed connection oiler of valve element and the damped part of the oil pocket, damped part makes to act on the hydraulic pressure on the outside of valve element
Oil can enter the oil pocket of inner side by damped part, make have hydraulic oil to communicate all the time inside and outside valve element, make jumpy
Fluid is gently got off by damped part, and then reduces the impact that is subject to of valve element, to cut down the vibration and utter long and high-pitched sounds that impact brings.Phase
This have the advantage that for prior art：The impact that valve element is subject to is effectively reduced, the vibration and utter long and high-pitched sounds that abatement impact is brought.
Brief description of the drawings
Fig. 1 is a kind of structural representation of overflow valve of the utility model.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, valve seat, 2, valve pocket, 3, adjusting gasket, 4, elastomeric element, 5, valve element, 6, damped part.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
In description of the present utility model, it is to be understood that term " on ", " under ", " " center ", " interior ", " outer ",
The orientation or position relationship of the instructions such as " top ", " bottom " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the utility model and simplify and describe, rather than instruction or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
As shown in figure 1, the utility model provides a kind of overflow valve, including valve seat 1, valve pocket 2, valve element 5 and elastomeric element 4,
The valve seat 1 is connected with the valve pocket 2, and the valve seat 1 forms the oil pocket of one end perforate with the valve pocket 2, and the valve element 5 can be slided
Dynamic to be arranged inside the perforate, the elastomeric element 4 is arranged on inside the oil pocket, the both ends of elastomeric element 4 point
Formula can not released with the inner surface of valve seat 1 and the valve element 5 to offset, the valve element 5 is axially disposed connection oiler and described
The damped part 6 of oil pocket.So, the damped part 6 in the axially disposed connection oiler of valve element 5 and the oil pocket, resistance are passed through
Buddhist nun's part 6 allows the hydraulic oil for acting on the outside of valve element 5 to enter the oil pocket of inner side by damped part 6, makes two inside and outside valve element 5
Side has hydraulic oil to communicate all the time, fluid jumpy is gently got off by damped part 6, and then reduces what valve element 5 was subject to
Impact, to cut down the vibration that brings of impact and utter long and high-pitched sounds.This have the advantage that in terms of existing technologies：Effectively reduce valve element 5
The impact being subject to, the vibration and utter long and high-pitched sounds that abatement impact is brought.
Overflow valve of the present utility model, as shown in figure 1, can also be on the basis of previously described technical scheme：Institute
Stating damped part 6 includes damping hole and damping silk, the damping hole connection oiler and the oil pocket, and the damping silk, which is fixed, to be worn
It is located inside the damping hole, the diameter of the damping silk is less than the diameter of the damping hole.So, according to needed for controlled system
Control pressure size and traffic demand, by calculating and correlation test, to determine suitable damping hole and supporting steel wire diameter
Size, by the structural shape of damping hole, the hydraulic oil for acting on the outside of valve element 5 is set to enter inner side oil by damping hole
Chamber, make there is hydraulic oil to communicate all the time inside and outside valve element 5, fluid jumpy is gently got off by damping hole, and then subtract
The impact that small valve core 5 is subject to, vibrate the decrease that accompanies.Other valve seat 1 also will not cause thread looseness because of the frequent vibration of valve element 5,
The even pressure release so that control pressure changes.Further preferred technical scheme is：The damping hole is arranged on the valve element 5
Axial centerline at.So, damping hole is arranged at the axial centerline of valve element 5, in hydraulic oil inside and outside valve element 5
During circulation, hydraulic oil is higher in the middle part pressure of valve element 5, is more uniformly stressed, when effectively avoiding the movement of valve element 5, because stress
Inequality causes the mechanical oscillation of valve element 5.
Overflow valve of the present utility model, as shown in figure 1, can also be on the basis of previously described technical scheme：Institute
State and adjusting gasket 3 is provided between elastomeric element 4 and the valve seat 1, the adjusting gasket 3 is fixedly installed on the valve seat 1
On portion's inner surface, the lower surface of adjusting gasket 3 can release formula overlap joint with the upper end of elastomeric element 4.So, in elastomeric element
Adjusting gasket 3 is set between 4 and valve seat 1, the deflection of regulating member change elastomeric element 4 is set by pad, so as to change valve element 5
Pressure required for opening, the convenient control pressure for controlling valve element 5 to open.
Overflow valve of the present utility model, as shown in figure 1, can also be on the basis of previously described technical scheme：Institute
State the upper end of valve element 5 and be provided with positive stop of the diameter more than the opening diameter and the internal diameter of valve seat 1, the positive stop with it is described
Valve element 5 is fixedly connected or integrally formed, and the inner surface bottom of valve seat 1 is provided with the ring for limiting the positive stop operating range
Spacing section of shape, the positive stop are slidably arranged in the annular stop section.So, moved in valve element 5 by hydraulic fluid pressure
When dynamic, positive stop can move in annular stop section, due to the effect of positive stop so that valve element 5 can only be certain
Moved in zone of action, and then ensure that valve element 5, will not be larger because of the amount of movement of valve element 5 in the case where hydraulic pressure is larger, destroy bullet
The structure of property part 4.
Overflow valve of the present utility model, as shown in figure 1, can also be on the basis of previously described technical scheme：Institute
It is spring to state elastomeric element 4.So, spring is relatively conventional elastomeric element 4, and simple in construction, manufacturing cost is low.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (6)
- A kind of 1. overflow valve, it is characterised in that：Including valve seat (1), valve pocket (2), valve element (5) and elastomeric element (4), the valve seat (1) it is connected with the valve pocket (2), the valve seat (1) forms the oil pocket of one end perforate with the valve pocket (2), and the valve element (5) can Slip is arranged inside the perforate, and the elastomeric element (4) is arranged on inside the oil pocket, the elastomeric element (4) Both ends can release formula with valve seat (1) inner surface and the valve element (5) respectively and offset, and the valve element (5) is axially disposed connection The damped part of oiler and the oil pocket (6).
- 2. overflow valve according to claim 1, it is characterised in that：The damped part (6) includes damping hole and damping silk, The damping hole connection oiler and the oil pocket, the damping silk, which is fixed, to be located in inside the damping hole, the damping silk Diameter be less than the damping hole diameter.
- 3. overflow valve according to claim 2, it is characterised in that：The damping hole is arranged on the center of the valve element (5) At axial location.
- 4. overflow valve according to claim 1, it is characterised in that：Set between the elastomeric element (4) and the valve seat (1) Adjusting gasket (3) is equipped with, the adjusting gasket (3) is fixedly installed in the valve seat (1) upper inside surface, the adjusting gasket (3) lower surface can release formula overlap joint with the elastomeric element (4) upper end.
- 5. overflow valve according to claim 1, it is characterised in that：Valve element (5) upper end is provided with diameter more than described The positive stop of opening diameter and valve seat (1) internal diameter, the positive stop are fixedly connected or integrally formed with the valve element (5), Valve seat (1) the inner surface bottom is provided with the annular stop section for limiting the positive stop operating range, the positive stop Slidably it is arranged in the annular stop section.
- 6. according to the overflow valve described in claim 1-5 any one, it is characterised in that：The elastomeric element (4) is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721158686.2U CN207111569U (en) | 2017-09-11 | 2017-09-11 | A kind of overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721158686.2U CN207111569U (en) | 2017-09-11 | 2017-09-11 | A kind of overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111569U true CN207111569U (en) | 2018-03-16 |
Family
ID=61587172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721158686.2U Active CN207111569U (en) | 2017-09-11 | 2017-09-11 | A kind of overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559257A (en) * | 2017-09-11 | 2018-01-09 | 雷沃重工股份有限公司 | A kind of overflow valve |
-
2017
- 2017-09-11 CN CN201721158686.2U patent/CN207111569U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559257A (en) * | 2017-09-11 | 2018-01-09 | 雷沃重工股份有限公司 | A kind of overflow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai leiwo Heavy Industry Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee before: LOVOL HEAVY INDUSTRY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai Lovol Intelligent Agricultural Technology Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee before: Weichai leiwo Heavy Industry Co.,Ltd. |