CN201262166Y - Integral multichannel reversal valve of loader - Google Patents
Integral multichannel reversal valve of loader Download PDFInfo
- Publication number
- CN201262166Y CN201262166Y CNU2008200875959U CN200820087595U CN201262166Y CN 201262166 Y CN201262166 Y CN 201262166Y CN U2008200875959 U CNU2008200875959 U CN U2008200875959U CN 200820087595 U CN200820087595 U CN 200820087595U CN 201262166 Y CN201262166 Y CN 201262166Y
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- valve
- oil pocket
- valve body
- suction chamber
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Abstract
The utility model discloses an integral multi-way reversal valve for loading machines, which comprises a valve body, a plurality of oil chambers formed inside the valve body, as well as a safety valve, a one-way valve, a rotating bucket valve stem and a movable arm valve stem, which are matched with the oil chambers. The rotating bucket valve stem, the valve body and the oil chambers of the valve body combine to achieve the three-position eight-way O-shaped slide valve function. The movable arm valve stem, the valve body and the oil chambers of the valve body are combined to achieve the four-position seven-way O-shaped slide valve function. The shared one-way valve is arranged between the main oil-intake chamber and the left oil-intake chamber inside the valve body, so as to avoid the 'nodding' phenomenon of the loading machine caused by the oil backflow when the oil chambers are turned up and lifted, and to avoid the use of the downturn one-way valve. The integral multi-way reversal valve can be applied to the loading machines and has the advantages of high pressure level, less pressure loss, less internal leakage, easy operation and capability of interchange with the conventional DF multi-way valve.
Description
Technical field
The utility model relates to a kind of multiple directional control valve, particularly a kind of loader integral multi-way reversing valve.
Background technique
At present, the manual multiple-way valve that domestic wheel loader equipment hydraulic system is used mainly is a DF series multi-way valve, and this valve is the seventies product in domestic last century, because of simple and compact for structure, low price is convenient to advantages such as maintenance and is widely used, but, what this valve adopted is the hollow core valve rod type, and the built-in one-way valve of valve rod exists valve rod thick, easily thermal distortion, steering force is heavier, Yi Kafa, problems such as the difficult control of internal leakage.External import multi-way valve all adopts the form of solid valve rod, the domestic in recent years solid manual multiple-way valve of some loaders that also occurred, though its various aspects of performance is significantly better than traditional DF series multi-way valve, but all have same problem: valve body neutral position oil circuit is realized being communicated with the structure relative complex with the form of bridge with commutation in-line layered arrangement, commutation in-line, the casting difficulty is big, thereby cause external form big, quality is heavy, a series of problems such as foundry goods scrappage height.Along with the raising of the every performance index of domestic loader, and the continuous increase of outlet loader quantity, traditional multi-way valve has been difficult to satisfy the needs of market high request.In order to improve the performance of domestic loader, strengthen integrating with the world market, save cost simultaneously, each loader producer active demand superior performance, the multi-way valve that can exchange with traditional DF multi-way valve.
The model utility content
The technical problems to be solved in the utility model provides that a kind of manipulation is light, internal leakage is few, the pressure loss is little, pressure rating is high, the repairing effect is obvious, cost is low, and the loader integral multi-way reversing valve that can exchange with traditional multi-way valve.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of loader integral multi-way reversing valve, comprise valve body, rotary valve pole, the moving arm valve pole valve, safety valve, one-way valve, total oil suction chamber that the made hydraulic oil that is provided with in the valve body passes through, left side oil suction chamber, right oil suction chamber, left side oil back chamber, right oil back chamber, last commentaries on classics oil pocket, under change oil pocket, promote oil pocket, the decline oil pocket, middle oil back chamber, it is characterized in that: be provided with safety valve between described total oil suction chamber and the right oil back chamber, between described total oil suction chamber and left oil suction chamber, be provided with the one-way valve that makes hydraulic oil flow to left oil suction chamber from total oil suction chamber, be provided with the second from left level oil pocket that is communicated with rotary valve pole and moving arm valve pole respectively at the valve body middle part, right secondary oil pocket, rotary valve pole passes valve body successively, left side oil back chamber, last commentaries on classics oil pocket, left side oil suction chamber, the second from left level oil pocket, right secondary oil pocket, right oil suction chamber, under change oil pocket, right oil back chamber, valve body, and described rotary valve pole and valve body and each oil pocket of being passed match and form three eight logical O type slide valve functions; Moving arm valve pole passes valve body, left oil back chamber successively, promotes oil pocket, the second from left level oil pocket, middle oil back chamber, right secondary oil pocket, decline oil pocket, right oil back chamber, valve body, and described moving arm valve pole and valve body and each oil pocket of being passed match and form four seven logical Q type slide valve functions.
The shoulder both sides are shaped on inner groove respectively in the middle of the described rotary valve pole, and moving arm valve pole the shoulder middle and right side is shaped on inner groove relatively; Above-mentioned inner groove is the circular groove in the recessed vertically shoulder in shoulder place, communicates with a row or multi-row radial hole on the corresponding shoulder.
The utility model adopts solid construction moving arm valve pole, rotary valve pole, be out of shape little, pressure can be transferred De Genggao, oil is directly through one-way valve and valve rod shoulder, shoulder is provided with inner groove at the valve rod middle part, and communicates with a row or multi-row radial hole, can build pressure in advance, increase the repairing effect, reduce the power of surging simultaneously.The characteristics that have the pressure rating height, the pressure loss are little, internal leakage is few, manipulation is light.Simultaneously, promote a shared one-way valve owing to making to change with swing arm on the loader rotating bucket, " nodding " phenomenon that flows backwards and cause because of active chamber fluid in commentaries on classics or the lifting process in the solution has been cancelled time commentaries on classics one-way valve, saves cost, and can exchange with traditional multi-way valve.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is a profile front view of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the B-B sectional view of Fig. 1;
Fig. 5 is the C-C sectional view of Fig. 1;
Fig. 6 is the rotary valve pole structural representation;
Fig. 7 is the moving arm valve pole structural representation;
Fig. 8 is a hydraulic system principle figure of the present utility model.
Among the figure 1, valve body 2, check valve assembly 3, left side oil suction chamber 4, total oil suction chamber 5, right oil suction chamber 6, main safety valve 7, right oil back chamber 8, under change oil pocket 9, rotary valve pole 10, moving arm valve pole 11, decline oil pocket 12, right secondary oil pocket 13, middle oil back chamber 14, the second from left level oil pocket 15, promote oil pocket 16, left side oil back chamber 17, steel ball positioning component 18, last commentaries on classics oil pocket 19, spring reset assembly 20, the big chamber of rotating bucket overload Fill valve 21, aperture 22, inner groove 23, rotating bucket loculus overload Fill valve
Concrete mode of execution
With reference to Fig. 1～Fig. 2, be the external form figure of the utility model integral manual multi-path reversing valve.
With reference to Fig. 3～Fig. 5, the main oil circuit of the utility model integral manual multi-path reversing valve is that meta oil circuit and reversing oil circuit are layout.
This selector valve mainly is made up of valve body 1, check valve assembly 2, main safety valve 6, rotary valve pole 9, moving arm valve pole 10, steel ball positioning component 17, spring reset assembly 19, the big chamber of rotating bucket overload Fill valve 20, rotating bucket loculus overload Fill valve 23 etc.
With reference to figure 3, the second from left level oil pocket of increase, right secondary oil pocket are symmetricly set on the middle part, are communicated with rotary valve pole 9 and moving arm valve pole 10 respectively; Check valve assembly 2 is placed between total oil suction chamber 4 and the left oil suction chamber 3; Rotating bucket connection for rotary valve pole 9 pass successively valve body 1, left oil back chamber 16, on change oil pocket 18, left oil suction chamber 3, the second from left level oil pocket 14, right secondary oil pocket 12, right oil suction chamber 5, change oil pocket 8, right oil back chamber 7, valve body 1 down; The swing arm connection passes valve body 1, left oil back chamber 16 successively, promotes oil pocket 15, the second from left level oil pocket 14, middle oil back chamber 13, right secondary oil pocket 12, decline oil pocket 11, right oil back chamber 7, valve body 1 for moving arm valve pole 10.
With reference to figure 6 and Fig. 7, rotary valve pole 9 is a solid construction with moving arm valve pole 10, be provided with three shoulders at above-mentioned valve rod middle part, wherein the shoulder both sides are shaped on inner groove 22 respectively in the middle of the rotary valve pole 9, and moving arm valve pole 10 the shoulders middle and right side are shaped on inner groove 22 relatively; The structure of inner groove 22 is the circular grooves in the recessed vertically shoulder in shoulder place, communicates with a row or multi-row radial hole 21 on the shoulder.Its effect is to build pressure in advance, increases the repairing effect, reduces the power of surging simultaneously.
Effect of the present utility model is the flow direction of control fluid, realizes lifting, meta, the decline, unsteady of last commentaries on classics, meta, following commentaries on classics and the swing arm of loader rotating bucket.With reference to figure 3 and Fig. 8, the rotating bucket of this valve connection is the series parallel connection relation with the swing arm connection.Former valve rotating bucket connection is three six logical O type slide valve functions, four six logical Q type slide valve functions of swing arm connection; This valve rotating bucket connection is a kind of novel three eight logical O type slide valve function forms, and the swing arm connection is a kind of novel three seven logical Q type slide valve function forms.Change with swing arm promoting a shared one-way valve on the rotating bucket, " nodding " phenomenon that flows backwards and cause because of active chamber fluid in commentaries on classics and the lifting process in the solution, cancellation is the commentaries on classics one-way valve down.
Rotating bucket connection working procedure: rotary valve pole 9 is in the meta position, last commentaries on classics oil pocket 18 is shut to the left oil back chamber 16 and the oil pocket of left oil suction chamber 3, changeing oil pocket 8 is down shut to the right oil back chamber 7 and the oil pocket of right oil suction chamber 5, left side oil suction chamber 3 is communicated with the second from left level oil pocket 14, right oil suction chamber 5 is communicated with right secondary oil pocket 12, and the second from left level oil pocket 14 is shut at the rotating bucket connection to right secondary oil pocket 12.The oil of total oil suction chamber 4 can have Liang Tiaolu to enter next connection.Article one, be that the one-way valve that the oil of total oil suction chamber 4 is pushed check valve assembly 2 open enters into left oil suction chamber 3, again from left oil suction chamber 3 to the second from left level oil pocket 14, arriving next connection is the swing arm connection; Another is that total oil suction chamber 4 arrives first right oil suction chamber 5, again from right oil suction chamber 5 to right secondary oil pocket 12, arrive next connection and be the swing arm connection, realize the meta system unloaded.Rotary valve pole 9 is drawn out to transposition and puts, left side oil suction chamber 3 is shut to the second from left level oil pocket 14, and left oil suction chamber 3 is to 18 connections of last commentaries on classics oil pocket, on change oil pocket 18 and shut to left oil back chamber 16, right oil suction chamber 5 is shut to right secondary oil pocket 12 and the following oil pocket 8 that changes, and following commentaries on classics oil pocket 8 is communicated with right oil back chamber 7.The one-way valve that the oil of total oil suction chamber 4 is pushed check valve assembly 2 open enters into left oil suction chamber 3, and to the big chamber of rotary ink tank, the oil return of rotary ink tank loculus realizes rotating function on the rotating bucket through changeing oil pocket 8 to right oil back chamber 7 oil returns down through last commentaries on classics oil pocket 18.Rotary valve pole 9 is advanced into down transposition and puts, left side oil suction chamber 3 is shut to the second from left level oil pocket 14 and last commentaries on classics oil pocket 18, on change oil pocket 18 and be communicated with to left oil back chamber 16, right oil suction chamber 5 is shut to right secondary oil pocket 12, right oil suction chamber 5 is communicated with the following oil pocket 8 that changes, and following commentaries on classics oil pocket 8 is shut to right oil back chamber 7.The oil of total oil suction chamber 4 is by right oil suction chamber 5, and through changeing oil pocket 8 to the rotary ink tank loculus down, the oil return in the big chamber of rotary ink tank to left oil back chamber 16 oil returns, realizes rotating function under the rotating bucket through last commentaries on classics oil pocket 18.When the rotating bucket connection was not worked, rotary valve pole 9 was got back to the meta position automatically by return spring.
Swing arm connection working procedure: moving arm valve pole 10 is in the meta position, the second from left level oil pocket 14 communicates with middle oil back chamber 13, right secondary oil pocket 12 communicates with middle oil back chamber 13, promote oil pocket 15 and shut to the second from left level oil pocket 14 and left oil back chamber 16, decline oil pocket 11 is shut with right oil back chamber 7 to right secondary oil pocket 12.Right secondary oil pocket 12 communicates with middle oil circuit 13 with the second from left level oil pocket 14, realizes system's meta off-load.Moving arm valve pole is pulled out and is in raised position, the second from left level oil pocket 14 communicates with lifting oil pocket 15, the second from left level oil pocket 14 is shut to middle oil back chamber 13, promoting oil pocket 15 is shut to left oil back chamber 16, right secondary oil pocket 12 is shut to middle oil back chamber 13, right secondary oil pocket 12 is shut to decline oil pocket 11, and decline oil pocket 11 communicates with right oil back chamber 7.The one-way valve that the oil of total oil suction chamber 4 is opened one-way valve group 2 enters left oil suction chamber 3, and through promoting oil pocket 15 to the big chamber of boom cylinder, the oil return of boom cylinder loculus to right oil back chamber 7 oil returns, realizes the swing arm enhanced feature through decline oil pocket 11 by the second from left level oil pocket 14.Moving arm valve pole 10 advances and is in lowering position, the second from left level oil pocket 14 is shut with middle oil back chamber 13 to promoting oil pocket 15, promoting oil pocket 15 communicates with left oil back chamber 16, right secondary oil pocket 12 is shut to middle oil back chamber 13, right secondary oil pocket 12 communicates with decline oil pocket 11, and decline oil pocket 11 is shut to right oil back chamber 7.The oil of total in-line 4 enters right in-line 5, by right secondary oil circuit 12 through decline oil pocket 8 to the boom cylinder loculus, the oil return in the big chamber of boom cylinder realizes swing arm decline function through promoting oil pocket 15 to left oil back chamber 16 oil returns.Moving arm valve pole 10 advances and is in the floating position, swing arm connection lifting this moment oil pocket 15 communicates with left oil back chamber 16, the second from left level oil pocket 14, right secondary oil pocket 12, decline oil pocket 11 communicate with middle oil back chamber 13, each hydraulic fluid port all is in low-pressure state, swing arm freely descends under the effect of self gravitation, realizes float function.
Claims (2)
1, a kind of loader integral multi-way reversing valve, comprise valve body, rotary valve pole, the moving arm valve pole valve, safety valve, one-way valve, total oil suction chamber that the made hydraulic oil that is provided with in the valve body passes through, left side oil suction chamber, right oil suction chamber, left side oil back chamber, right oil back chamber, last commentaries on classics oil pocket, under change oil pocket, promote oil pocket, the decline oil pocket, middle oil back chamber, it is characterized in that: be provided with safety valve between described total oil suction chamber and the right oil back chamber, between described total oil suction chamber and left oil suction chamber, be provided with the one-way valve that makes hydraulic oil flow to left oil suction chamber from total oil suction chamber, be provided with the second from left level oil pocket that is communicated with rotary valve pole and moving arm valve pole respectively at the valve body middle part, right secondary oil pocket, rotary valve pole passes valve body successively, left side oil back chamber, last commentaries on classics oil pocket, left side oil suction chamber, the second from left level oil pocket, right secondary oil pocket, right oil suction chamber, under change oil pocket, right oil back chamber, valve body, and described rotary valve pole and valve body and each oil pocket of being passed match and form three eight logical 0 type slide valve functions; Moving arm valve pole passes valve body, left oil back chamber successively, promotes oil pocket, the second from left level oil pocket, middle oil back chamber, right secondary oil pocket, decline oil pocket, right oil back chamber, valve body, and described moving arm valve pole and valve body and each oil pocket of being passed match and form four seven logical Q type slide valve functions.
2, a kind of loader integral multi-way reversing valve as claimed in claim 1 is characterized in that: the shoulder both sides are shaped on inner groove respectively in the middle of the described rotary valve pole, and moving arm valve pole the shoulder middle and right side is shaped on inner groove relatively; Above-mentioned inner groove is the circular groove in the recessed vertically shoulder in shoulder place, communicates with a row or multi-row radial hole on the corresponding shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200875959U CN201262166Y (en) | 2008-05-19 | 2008-05-19 | Integral multichannel reversal valve of loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200875959U CN201262166Y (en) | 2008-05-19 | 2008-05-19 | Integral multichannel reversal valve of loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201262166Y true CN201262166Y (en) | 2009-06-24 |
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ID=40808639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200875959U Expired - Fee Related CN201262166Y (en) | 2008-05-19 | 2008-05-19 | Integral multichannel reversal valve of loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201262166Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402070A (en) * | 2016-09-13 | 2017-02-15 | 江苏恒立液压科技有限公司 | Valve core positioning and resetting device |
-
2008
- 2008-05-19 CN CNU2008200875959U patent/CN201262166Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402070A (en) * | 2016-09-13 | 2017-02-15 | 江苏恒立液压科技有限公司 | Valve core positioning and resetting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG HAIHONG HYDRAULIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ZHEJIANG LINHAI HAIHONG GROUP CORP., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 317000 Zhejiang 317000 Jinling Road No. 199 Patentee after: Zhejiang Haihong Hydraulic Technology Co., Ltd. Address before: 317000, Linhai Road, Linhai City, Zhejiang Province, No. 78 Patentee before: Zhejiang Linhai Haihong Group Corp., Ltd. |
|
| 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: 20090624 Termination date: 20170519 |