CN206592561U - A kind of main control valve valve rod with throttling channel - Google Patents
A kind of main control valve valve rod with throttling channel Download PDFInfo
- Publication number
- CN206592561U CN206592561U CN201720211663.7U CN201720211663U CN206592561U CN 206592561 U CN206592561 U CN 206592561U CN 201720211663 U CN201720211663 U CN 201720211663U CN 206592561 U CN206592561 U CN 206592561U
- Authority
- CN
- China
- Prior art keywords
- shoulder
- valve rod
- lag
- throttling channel
- throttling
- 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.)
- Expired - Fee Related
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- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a kind of main control valve valve rod with throttling channel, it belongs to engineering machinery field.It mainly includes valve rod, valve rod is provided with shoulder a, shoulder b, shoulder c, shoulder d, shoulder e, shoulder f, it is respectively equipped with two groups of throttling channels on the shoulder a and shoulder e, is respectively equipped with shoulder b and shoulder f on three groups of throttling channels, shoulder c and shoulder d and is respectively equipped with one group of throttling channel；Every group of throttling channel includes that shape is identical, symmetrically arranged 2 throttling channels；Throttling channel on the shoulder a, shoulder b and shoulder f includes one group of combination slot, and the combination slot includes U-lag a, and U-lag a bottom is provided with U-lag b, and U-lag a diameter is twice of U-lag b diameters.The utility model is simple in construction, meets the flow control of main-control valve of excavating machine, and overcome traditional valve rod causes overall efficiency low because design is unreasonable, exercise not harmony, the problem of oil consumption is high.The utility model is mainly used in excavator.
Description
Technical field
The utility model belongs to engineering machinery field, specifically, more particularly to a kind of main control valve valve with throttling channel
Bar.
Background technology
Banked direction control valves is the key foundation part of engineering machinery.The discharge characteristic of banked direction control valves is directly connected to relaxing for complete machine action
Adaptive, energy saving and operating efficiency, are the core technologies of main control valve design.And discharge characteristic be by the area performance of valve rod come
Control, different throttling channels can be driven on valve rod, to reach the purpose for realizing different area characteristic.Common throttling channel has
U-lag, V-shaped groove, L-shaped groove, various combination slots etc..One group of rational throttling channel, can make complete machine operating efficiency high, one action with
Meet action smooth-going, partial drop of pressure is reasonable；On the contrary, throttling channel design is unreasonable, overall efficiency can be caused low, action is not assisted
Adjust, oil consumption is high, or even break down.
The content of the invention
The purpose of this utility model is to overcome drawbacks described above there is provided a kind of main control valve valve rod with throttling channel, and it is tied
Structure is simple, meets the flow control of main-control valve of excavating machine, and overcome traditional valve rod causes overall efficiency because design is unreasonable
Lowly, exercise not harmony, the problem of oil consumption is high.
The described main control valve valve rod with throttling channel, including valve rod, valve rod are provided with shoulder a, shoulder b, shoulder c, platform
Shoulder d, shoulder e, it is respectively equipped with two groups of throttling channels, shoulder b and shoulder f on shoulder f, the shoulder a and shoulder e and is respectively equipped with three
One group of throttling channel is respectively equipped with group throttling channel, shoulder c and shoulder d；Every group of throttling channel is including shape is identical, symmetrically set
2 throttling channels put.
Further, the throttling channel on the shoulder a, shoulder b and shoulder f includes one group of combination slot, the combination slot
Including U-lag a, U-lag a bottom is provided with U-lag b, and U-lag a diameter is twice of U-lag b diameters.
Further, the throttling channel on the shoulder c is L-shaped groove.
Further, the throttling channel on the shoulder d is L-shaped groove.
Compared with prior art, the beneficial effects of the utility model are：
1st, demand of the excavator to flow is met so that the actuation time of excavator is in claimed range；
2nd, the utility model meets ride comfort requirement, by the load stabilization or steady that executing agency is simulated on experimental bench
Changing, and carry out associative operation makes valve rod in diverse location, even if measuring this group of throttling channel by fully closed to standard-sized sheet, institute by experiment
Pressure measurement force curve qualified single peak invariably；
3rd, in complete machine operation, the utility model meets oil consumption requirement.
Brief description of the drawings
Fig. 1 is front view of the present utility model；
Fig. 2 is left view of the present utility model；
Fig. 3 is the distribution schematic diagram of each throttling channels of Fig. 2；
Fig. 4 be Fig. 1 in enlarged drawing from A-A to cut-away view；
Fig. 5 is the enlarged drawing of B-B direction cut-away view in Fig. 1；
Fig. 6 be Fig. 1 in enlarged drawing from C-C to cut-away view；
Fig. 7 be Fig. 1 in enlarged drawing from D-D to cut-away view；
Fig. 8 be Fig. 3 in enlarged drawing from E-E to cut-away view；
Fig. 9 be Fig. 3 in enlarged drawing from F-F to cut-away view；
Structural representation when Figure 10 is the utility model middle position；
Structural representation when Figure 11 is the utility model right position；
Figure 12 is the area change curve sketch of the utility model fluting and unslotted.
In figure, 1, shoulder a；2nd, shoulder b；3rd, shoulder c；4th, shoulder d；5th, shoulder e；6th, shoulder f；7th, throttling channel；8th, U-lag
a；9th, U-lag b.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in figure 1, the main control valve valve rod with throttling channel, including valve rod, valve rod is provided with shoulder a1, shoulder b2, platform
Shoulder c3, shoulder d4, shoulder e5, shoulder f6；
As shown in Figures 2 to 7, two groups of throttling channels, shoulder b2 and shoulder f6 are respectively equipped with the shoulder a1 and shoulder e5
On be respectively equipped with three groups of throttling channels, shoulder c3 and shoulder d4 and be respectively equipped with one group of throttling channel；Every group of throttling channel includes
Shape is identical, symmetrically arranged 2 throttling channels 7；Throttling channel 7 on shoulder a1, shoulder b2 and shoulder f6 includes one group of combination
Groove, the combination slot includes U-lag a8, and U-lag a8 bottom is provided with U-lag b9, and U-lag a8 diameter is U-lag b9 diameters
Twice.
As shown in Figure 8, Figure 9, the throttling channel 7 on the shoulder c3 and shoulder d4 is L-shaped groove.
As shown in Figure 10, Figure 11, A, B are actuator port, and T is oil return opening, P be by pumping hole or upper job connection stream Lai pressure
Power oil duct, or the pressure oil in P oil ducts flows to P2 oil ducts via check valve, then flows to actuator port A or B；Through P1 oil
Road flows to subsequent work connection or oil return.
As shown in Figure 10, during valve rod middle position, P flows to subsequent work connection or oil return through P1 oil ducts, both disconnects oil inlet,
Disconnect oil return opening.When promoting valve rod, moving to right valve rod, as shown in figure 11, the pressure oil in P oil ducts flows to P2 oil ducts, then
The fluid flowed in actuator port A, actuator port B flows to back oil road T.Similarly, when valve rod is moved to left, P2 pressure oils flow to working oil
Mouth B, actuator port A connect back oil road.If valve rod does not drive throttling channel, when valve rod is moved to right, P2 pressure oils can enter actuator port
A, and when actuator port B oil returns, P to P1 flow control, area change gradient is big, and pressure, flow microcontroller are bad, and
Cause pressure oscillation big, handling bad, executing agency's vibration is larger, it is impossible to meet customer need.
Combined according to tractor parameter with complete machine action request and theoretical calculation with experience, as shown in figure 3, utilizing cylindrical milling cutter
Throttling channel 7 is driven on shoulder a1, shoulder b2, shoulder c3, shoulder d4, shoulder e5, shoulder f6, to reduce the influence of hydraulic power, often
Group throttling channel includes that shape is identical, symmetrically arranged 2 throttling channels 7.
As shown in figure 12, the utility model can make area gradient diminish, and the curve of areas becomes gentle so that curve has out
Open stage, ratio stage, maximum three parts of stage, reach the flow area curve of setting, can meet complete machine to it is handling,
Requirement in terms of ride comfort.The utility model passes through in complete machine checking, and one action time and handling and ride comfort meet
It is required that.
Claims (4)
1. a kind of main control valve valve rod with throttling channel, including valve rod, valve rod are provided with shoulder a (1), shoulder b (2), shoulder c
(3), shoulder d (4), shoulder e (5), shoulder f (6), it is characterised in that：Two are respectively equipped with the shoulder a (1) and shoulder e (5)
It is respectively equipped with three groups of throttling channels, shoulder c (3) and shoulder d (4) and is respectively equipped with group throttling channel, shoulder b (2) and shoulder f (6)
One group of throttling channel；Every group of throttling channel includes that shape is identical, symmetrically arranged 2 throttling channels (7).
2. the main control valve valve rod according to claim 1 with throttling channel, it is characterised in that：The shoulder a (1), shoulder b
(2) throttling channel (7) and on shoulder f (6) includes one group of combination slot, and the combination slot includes U-lag a (8), U-lag a (8)
Bottom be provided with U-lag b (9), U-lag a (8) diameter is twice of U-lag b (9) diameter.
3. the main control valve valve rod according to claim 1 or 2 with throttling channel, it is characterised in that：On the shoulder c (3)
Throttling channel (7) be L-shaped groove.
4. the main control valve valve rod according to claim 3 with throttling channel, it is characterised in that：Section on the shoulder d (4)
Chute (7) is L-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720211663.7U CN206592561U (en) | 2017-03-06 | 2017-03-06 | A kind of main control valve valve rod with throttling channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720211663.7U CN206592561U (en) | 2017-03-06 | 2017-03-06 | A kind of main control valve valve rod with throttling channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206592561U true CN206592561U (en) | 2017-10-27 |
Family
ID=60127110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720211663.7U Expired - Fee Related CN206592561U (en) | 2017-03-06 | 2017-03-06 | A kind of main control valve valve rod with throttling channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206592561U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322455A (en) * | 2020-04-08 | 2020-06-23 | 徐州阿马凯液压技术有限公司 | Multifunctional compensation valve rod structure |
-
2017
- 2017-03-06 CN CN201720211663.7U patent/CN206592561U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322455A (en) * | 2020-04-08 | 2020-06-23 | 徐州阿马凯液压技术有限公司 | Multifunctional compensation valve rod structure |
| CN111322455B (en) * | 2020-04-08 | 2022-07-22 | 徐州阿马凯液压技术有限公司 | Multifunctional compensation valve rod structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 Termination date: 20190306 |