CN104653820A - Multi-way valve for small-sized excavator - Google Patents
Multi-way valve for small-sized excavator Download PDFInfo
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- CN104653820A CN104653820A CN201510114465.4A CN201510114465A CN104653820A CN 104653820 A CN104653820 A CN 104653820A CN 201510114465 A CN201510114465 A CN 201510114465A CN 104653820 A CN104653820 A CN 104653820A
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- Prior art keywords
- valve body
- automatic
- reverse
- opening
- manual
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a multi-way valve for a small-sized excavator. The multi-way valve comprises two oil inlet valve bodies, seven automatic reversing valve bodies, two manual reversing valve bodies and an oil return valve body which are in series connected and assembled together through bolts, wherein the first oil inlet valve body, the first automatic reversing valve body, the second automatic reversing valve body, the third automatic reversing valve body and the first manual reversing valve body are connected at one side of the oil return valve body in sequence; the second oil inlet valve body, the fourth automatic reversing valve body, the fifth automatic reversing valve body, the sixth automatic reversing valve body, the seventh automatic reversing valve body and the second manual reversing valve body are connected at the other side of the oil return valve body in sequence. According to the multi-way valve disclosed by the invention, the reversing valve bodies are integrated to realize the purpose that the multi-way valve can meet various action function needs required by the small-sized excavator, so that elements are reduced, the cost is reduced, and the carrying, the mounting and the applying are convenient; the control oil path of each reversing valve body at each of the two sides of the oil return valve body is independent without mutual interferences and disturbances, so that the host machine requirements are completely met.
Description
Technical field
The present invention relates to a kind of multi-way valve, particularly relate to a kind of compact structure, Miniature digging machine multi-way valve that level of integration is high.
Background technique
Multi-way valve is the combination brake switch and proporting combined by multiple single valve body, for carrying out the control of oil circuit break-make to multiple control object.The oil circuit that the depth development of industry causes every profession and trade needs to control gets more and more, and change also increasing, existing multi-way valve product is difficult to realize new application demand.
Such as, a kind of 1.5T mini-excavator occurred in the market, multiple oil circuit is needed to realize the control of multiple function, concrete function is as follows: swing arm, shoveling, dipper, left lateral are walked, swing arm, scraper bowl, revolution, for subsequent use, right lateral are walked, and requiring that left and right travelling control mode is manual, all the other action control modes are hydraulic control.Do not have corresponding multi-way valve can realize these functions together in the market, control so independent break-make can only be realized respectively with multiple single valve body, so not only take up room greatly, cost is high, be difficult to operation, and control accuracy is not ideal enough.In addition, traditional commutation valve body, each hatch frame of its internal control guiding valve is an annular opening, does not have other supplementary structure, so its precision controlling flow is not high enough, fretting performance is not enough, there will be departure in the application.
Summary of the invention
Object of the present invention be just to provide to solve the problem a kind of compact structure, level of integration high, control accurate Miniature digging machine multi-way valve.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of Miniature digging machine multi-way valve, comprise by bolt assembled in series two oil-feed valve bodies together, seven automatic reverse valve bodies, two manual reverse of direction valve bodies and an oil return valve body, wherein, the pressure oil port of the first oil-feed valve body successively with the pressure oil port of the first automatic reverse valve body, the pressure oil port of the second automatic reverse valve body, the pressure oil port of the 3rd automatic reverse valve body is connected with the pressure oil port correspondence of the first manual reverse of direction valve body, the return opening of described first automatic reverse valve body successively with the return opening of described second automatic reverse valve body, the return opening of described 3rd automatic reverse valve body is connected with the return opening correspondence of described first manual reverse of direction valve body, the pressure oil port of the second oil-feed valve body is corresponding with the pressure oil port of the pressure oil port of the pressure oil port of the 4th automatic reverse valve body, the 5th automatic reverse valve body, the pressure oil port of the 6th automatic reverse valve body, the pressure oil port of the 7th automatic reverse valve body and the second manual reverse of direction valve body successively to be connected, and the return opening of described 4th automatic reverse valve body is corresponding with the return opening of the return opening of the return opening of described 5th automatic reverse valve body, described 6th automatic reverse valve body, the return opening of described 7th automatic reverse valve body and described second manual reverse of direction valve body successively to be connected, the return opening of described first manual reverse of direction valve body is connected with the return opening of described second manual reverse of direction valve body is all corresponding with the return opening of described oil return valve body.
In said structure, automatic reverse valve body and manual reverse of direction valve body are liquid controlled reversing valve body, and the former adopts automatic control mode, and the latter adopts manual control mode; Multiple automatic reverse valve body, multiple manual reverse of direction valve body, oil-feed valve body and oil return valve body are integrated, the several functions demand of Miniature digging machine can be met, specifically, the first automatic reverse valve body, the second automatic reverse valve body, the 3rd automatic reverse valve body, the first manual reverse of direction valve body, the second manual reverse of direction valve body, the 4th automatic reverse valve body, the 5th automatic reverse valve body, the 6th automatic reverse valve body, the 7th automatic reverse valve body respectively corresponding Miniature digging machine swing arm, shoveling, dipper, left lateral is walked, right lateral is walked, swing arm, scraper bowl, revolution, standby functions.
In order to improve control accuracy, the peripheral wall of three opening both sides of the automatic spool control valve of described automatic reverse valve body is equipped with self-choke groove, described self-choke groove communicates with corresponding described opening; Eight automatic flow path grooves that are corresponding with three openings of described automatic spool control valve and that communicate with the main oil gallery of this valve body are provided with in the valve body of described automatic reverse valve body, wherein, two middle described automatic flow path grooves communicate with the opening in the middle of described automatic spool control valve, and each three described automatic flow path grooves on both sides communicate with the opening on described automatic spool control valve both sides respectively.
Preferably, the peripheral wall of opening both sides described in each is evenly provided with four described self-choke grooves respectively.
Further, in three openings of the Non-follow control guiding valve of described manual reverse of direction valve body, be equipped with manual throttle groove in the peripheral wall of its middle opening both sides and in the peripheral wall of both sides opening inner side, described manual throttle groove communicates with corresponding described opening; Eight manual flow path grooves that are corresponding with three openings of described Non-follow control guiding valve and that communicate with the main oil gallery of this valve body are provided with in the valve body of described manual reverse of direction valve body, wherein, two middle described manual flow path grooves communicate with the opening in the middle of described Non-follow control guiding valve, and each three described manual flow path grooves on both sides communicate with the opening on described Non-follow control guiding valve both sides respectively.
Preferably, four manual throttle grooves are evenly provided with respectively in the peripheral wall of the middle opening both sides of described Non-follow control guiding valve and in the peripheral wall of both sides opening inner side.
Illustrate: above-mentioned self-choke groove and manual throttle groove are the throttling groove that the consistent but size of structure may be different, before using names automatically and manually, be in order to the component names in automatic reverse valve body and manual reverse of direction valve body is distinguished; Correspondingly, automatic spool control valve and Non-follow control guiding valve, automatic flow path groove and manual flow path groove are also identical reasons.
Beneficial effect of the present invention is:
The present invention is by integrated multiple commutation valve body, achieve the demand that a multi-way valve can complete the various motion function needed for Miniature digging machine, decrease original paper, reduce cost, be easy to carry, install and apply, and adopt the structure of two oil-feed valve bodies and an oil return valve body, the oil circuit control of each commutation valve body on oil return valve body both sides is independent separately, be independent of each other and disturb, meeting main frame requirement completely; By arranging throttling groove on the spool control valve of commutation valve body, and the multiple flow path grooves corresponding with the opening of spool control valve are set in this valve body, thus achieve the accurate control of each commutation valve body and each holding function, both the accurate control of equipment operating had been beneficial to, turn improve the utilization ratio of main engine power, achieve energy-conservation object.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of Miniature digging machine multi-way valve of the present invention;
Fig. 2 is the left TV structure schematic diagram of Miniature digging machine multi-way valve of the present invention;
Fig. 3 is that structural representation cuts open in the office of the automatic spool control valve of automatic reverse valve body of the present invention;
Fig. 4 is that structural representation cuts open in the office of the automatic spool control valve of manual reverse of direction valve body of the present invention;
Fig. 5 is the sectional structure schematic diagram of automatic reverse valve body of the present invention and manual reverse of direction valve body, not shown spool control valve;
Fig. 6 is the sectional structure schematic diagram that Non-follow control guiding valve of the present invention is placed in described manual reverse of direction valve body.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As depicted in figs. 1 and 2, Miniature digging machine multi-way valve of the present invention comprises by 13 bolt assembled in series the first oil-feed valve body 1 together, second oil-feed valve body 12, first automatic reverse valve body 2, second automatic reverse valve body 3, 3rd automatic reverse valve body 4, 4th automatic reverse valve body 11, 5th automatic reverse valve body 10, 6th automatic reverse valve body 9, 7th automatic reverse valve body 8, first manual reverse of direction valve body 5, second manual reverse of direction valve body 7 and an oil return valve body 6, wherein, the pressure oil port of the first oil-feed valve body 1 successively with the pressure oil port of the first automatic reverse valve body 2, the pressure oil port of the second automatic reverse valve body 3, the pressure oil port 4 of the 3rd automatic reverse valve body is connected with the pressure oil port correspondence of the first manual reverse of direction valve body 5, the return opening of the first automatic reverse valve body 2 successively with the return opening of the second automatic reverse valve body 3, the return opening of the 3rd automatic reverse valve body 4 is connected with the return opening correspondence of the first manual reverse of direction valve body 5, the pressure oil port of the second oil-feed valve body 12 is corresponding with the pressure oil port of the pressure oil port of the pressure oil port of the 4th automatic reverse valve body 11, the 5th automatic reverse valve body 10, the pressure oil port of the 6th automatic reverse valve body 9, the pressure oil port of the 7th automatic reverse valve body 8 and the second manual reverse of direction valve body 7 successively to be connected, and the return opening of the 4th automatic reverse valve body 11 is corresponding with the return opening of the return opening of the 5th automatic reverse valve body 10, the return opening of the 6th automatic reverse valve body 9, the return opening of the 7th automatic reverse valve body 8 and the second manual reverse of direction valve body 7 successively to be connected, the return opening of the first manual reverse of direction valve body 5 is connected with the return opening of the second manual reverse of direction valve body 7 is all corresponding with the return opening of oil return valve body 6.
As shown in Figure 3, the peripheral wall of three opening 15 both sides of the automatic spool control valve 14 of above-mentioned all automatic reverse valve bodies is evenly provided with four self-choke grooves 16 respectively, the size of different self-choke grooves 16 can be identical or different, specifically determine as required, self-choke groove 16 communicates with corresponding opening 15; As shown in Figure 3 and Figure 5, and eight automatic flow path grooves 21 with the main oil gallery of this valve body 20 communicating corresponding with three of automatic spool control valve openings 15 are provided with in the valve body 20 of automatic reverse valve body, wherein, two middle automatic flow path grooves 21 communicate with the opening 15 in the middle of automatic spool control valve 14, and each three automatic flow path grooves 21 on both sides communicate with the opening 15 on automatic spool control valve 14 both sides respectively.This similar in the structure of Non-follow control guiding valve 17 in this valve body 22 shown in Fig. 6, because both structures are consistent, so do not illustrate the structure of automatic spool control valve 14 in this valve body 20 in figure.
As shown in Figure 4, Figure 5 and Figure 6, in three openings 18 of the Non-follow control guiding valve 17 of above-mentioned two manual reverse of direction valve bodies, peripheral wall in the peripheral wall of its middle opening 18 both sides and inside both sides opening 18 is evenly provided with four manual throttle grooves 19 respectively, and manual throttle groove 19 communicates with corresponding opening 18; And eight manual flow path grooves 23 with the main oil gallery of this valve body 22 communicating corresponding with three of Non-follow control guiding valve 17 openings 18 are provided with in the valve body 22 of manual reverse of direction valve body, wherein, two middle manual flow path grooves 23 communicate with the opening 18 in the middle of Non-follow control guiding valve 17, and each three manual flow path grooves 23 on both sides communicate with the opening 18 on Non-follow control guiding valve 17 both sides respectively.
Illustrate: the structure of the valve body of above-mentioned automatic reverse valve body 20 and the valve body 22 of manual reverse of direction valve body, except the automatic spool control valve 14 of inside is different with the structure of Non-follow control guiding valve 17, other structure is identical.
As shown in Figure 1, during use, the oil outlet of the first pressure oil pump (not shown) is connected with the P1 mouth of the first oil-feed valve body 1, the oil outlet of the second pressure oil pump (not shown) is connected with the P2 mouth of the second oil-feed valve body 12, the T mouth of oil return valve body 6 is connected with oil return fuel tank (not shown), first automatic reverse valve body 2, second automatic reverse valve body 3, 3rd automatic reverse valve body 4, first manual reverse of direction valve body 5, second manual reverse of direction valve body 7, 7th automatic reverse valve body 8, 6th automatic reverse valve body 9, 5th automatic reverse valve body 10, A1 ~ the A9 of the 4th automatic reverse valve body 11, B1 ~ B9 interface is corresponding with each holding function oil duct interface of Miniature digging machine respectively to be connected, by the automatic control of each automatic reverse valve body and the Non-follow control function of each manual reverse of direction valve body, realize the swing arm to Miniature digging machine, shoveling, dipper, left lateral is walked, right lateral is walked, swing arm, scraper bowl, revolution, the correspondence of standby functions controls, complete the various actions function of Miniature digging machine.
Above-described embodiment is preferred embodiment of the present invention; it is not the restriction to technical solution of the present invention; as long as without the technological scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of patent of the present invention.
Claims (5)
1. a Miniature digging machine multi-way valve, it is characterized in that: comprise by bolt assembled in series two oil-feed valve bodies together, seven automatic reverse valve bodies, two manual reverse of direction valve bodies and an oil return valve body, wherein, the pressure oil port of the first oil-feed valve body successively with the pressure oil port of the first automatic reverse valve body, the pressure oil port of the second automatic reverse valve body, the pressure oil port of the 3rd automatic reverse valve body is connected with the pressure oil port correspondence of the first manual reverse of direction valve body, the return opening of described first automatic reverse valve body successively with the return opening of described second automatic reverse valve body, the return opening of described 3rd automatic reverse valve body is connected with the return opening correspondence of described first manual reverse of direction valve body, the pressure oil port of the second oil-feed valve body is corresponding with the pressure oil port of the pressure oil port of the pressure oil port of the 4th automatic reverse valve body, the 5th automatic reverse valve body, the pressure oil port of the 6th automatic reverse valve body, the pressure oil port of the 7th automatic reverse valve body and the second manual reverse of direction valve body successively to be connected, and the return opening of described 4th automatic reverse valve body is corresponding with the return opening of the return opening of the return opening of described 5th automatic reverse valve body, described 6th automatic reverse valve body, the return opening of described 7th automatic reverse valve body and described second manual reverse of direction valve body successively to be connected, the return opening of described first manual reverse of direction valve body is connected with the return opening of described second manual reverse of direction valve body is all corresponding with the return opening of described oil return valve body.
2. Miniature digging machine multi-way valve according to claim 1, is characterized in that: the peripheral wall of three opening both sides of the automatic spool control valve of described automatic reverse valve body is equipped with self-choke groove, and described self-choke groove communicates with corresponding described opening; Eight automatic flow path grooves that are corresponding with three openings of described automatic spool control valve and that communicate with the main oil gallery of this valve body are provided with in the valve body of described automatic reverse valve body, wherein, two middle described automatic flow path grooves communicate with the opening in the middle of described automatic spool control valve, and each three described automatic flow path grooves on both sides communicate with the opening on described automatic spool control valve both sides respectively.
3. Miniature digging machine multi-way valve according to claim 2, is characterized in that: the peripheral wall of opening both sides described in each is evenly provided with respectively four described self-choke grooves.
4. the Miniature digging machine multi-way valve according to claim 1,2 or 3, it is characterized in that: in three openings of the Non-follow control guiding valve of described manual reverse of direction valve body, be equipped with manual throttle groove in the peripheral wall of its middle opening both sides and in the peripheral wall of both sides opening inner side, described manual throttle groove communicates with corresponding described opening; Eight manual flow path grooves that are corresponding with three openings of described Non-follow control guiding valve and that communicate with the main oil gallery of this valve body are provided with in the valve body of described manual reverse of direction valve body, wherein, two middle described manual flow path grooves communicate with the opening in the middle of described Non-follow control guiding valve, and each three described manual flow path grooves on both sides communicate with the opening on described Non-follow control guiding valve both sides respectively.
5. Miniature digging machine multi-way valve according to claim 4, is characterized in that: be evenly provided with four manual throttle grooves respectively in the peripheral wall of the middle opening both sides of described Non-follow control guiding valve and in the peripheral wall of both sides opening inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510114465.4A CN104653820B (en) | 2015-03-17 | 2015-03-17 | A kind of Miniature digging machine multi-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510114465.4A CN104653820B (en) | 2015-03-17 | 2015-03-17 | A kind of Miniature digging machine multi-way valve |
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| Publication Number | Publication Date |
|---|---|
| CN104653820A true CN104653820A (en) | 2015-05-27 |
| CN104653820B CN104653820B (en) | 2019-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510114465.4A Active CN104653820B (en) | 2015-03-17 | 2015-03-17 | A kind of Miniature digging machine multi-way valve |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2890448Y (en) * | 2005-12-08 | 2007-04-18 | 常德信诚液压有限公司 | Hydraulic combined control valve |
| CN200952148Y (en) * | 2006-09-27 | 2007-09-26 | 张思学 | Double-dividing interflowing multipath valve |
| CN202152768U (en) * | 2011-08-04 | 2012-02-29 | 上海强田流体技术有限公司 | Internally-controlled automatic converging multiway valve |
| CN102506030A (en) * | 2011-09-26 | 2012-06-20 | 三一重型装备有限公司 | Multi-way valve and tunnel boring machine |
| CN203202304U (en) * | 2013-03-27 | 2013-09-18 | 浙江海宏液压科技股份有限公司 | Multifunctional forklift multi-way valve |
| CN203258106U (en) * | 2013-05-06 | 2013-10-30 | 北京华德液压工业集团有限责任公司 | Direct-acting proportional reversing valve |
| WO2014014146A1 (en) * | 2012-07-19 | 2014-01-23 | 볼보 컨스트럭션 이큅먼트 에이비 | Flow control valve for construction machinery |
| CN204512531U (en) * | 2015-03-17 | 2015-07-29 | 泸州精通流体液压机械有限公司 | A kind of Miniature digging machine multi-way valve |
-
2015
- 2015-03-17 CN CN201510114465.4A patent/CN104653820B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2890448Y (en) * | 2005-12-08 | 2007-04-18 | 常德信诚液压有限公司 | Hydraulic combined control valve |
| CN200952148Y (en) * | 2006-09-27 | 2007-09-26 | 张思学 | Double-dividing interflowing multipath valve |
| CN202152768U (en) * | 2011-08-04 | 2012-02-29 | 上海强田流体技术有限公司 | Internally-controlled automatic converging multiway valve |
| CN102506030A (en) * | 2011-09-26 | 2012-06-20 | 三一重型装备有限公司 | Multi-way valve and tunnel boring machine |
| WO2014014146A1 (en) * | 2012-07-19 | 2014-01-23 | 볼보 컨스트럭션 이큅먼트 에이비 | Flow control valve for construction machinery |
| CN203202304U (en) * | 2013-03-27 | 2013-09-18 | 浙江海宏液压科技股份有限公司 | Multifunctional forklift multi-way valve |
| CN203258106U (en) * | 2013-05-06 | 2013-10-30 | 北京华德液压工业集团有限责任公司 | Direct-acting proportional reversing valve |
| CN204512531U (en) * | 2015-03-17 | 2015-07-29 | 泸州精通流体液压机械有限公司 | A kind of Miniature digging machine multi-way valve |
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| CN104653820B (en) | 2019-09-13 |
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Effective date of registration: 20190819 Address after: 646000 Centralized Development Zone of Machinery Industry in Jiangyang District, Luzhou City, Sichuan Province Applicant after: Luzhou Zhuoyuan Hydraulic Co., Ltd. Address before: 646000 Luzhou Machinery Industry Centralized Development Zone, Luzhou City, Sichuan Province Applicant before: Fluid press mechanical pressing Co., Ltd is proficient in Luzhou |
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