CN201810818U - Slide valve rod for multi-way valve - Google Patents
Slide valve rod for multi-way valve Download PDFInfo
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- CN201810818U CN201810818U CN2010202697101U CN201020269710U CN201810818U CN 201810818 U CN201810818 U CN 201810818U CN 2010202697101 U CN2010202697101 U CN 2010202697101U CN 201020269710 U CN201020269710 U CN 201020269710U CN 201810818 U CN201810818 U CN 201810818U
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- meta
- oil
- return groove
- groove
- way valve
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Abstract
The utility model provides a slide valve rod for a multi-way valve, which belongs to the technical field of engineering elements, and solves the problems that an existing slide valve rod is provided with a valve opening in a full-periphery opening form, pressure and flow changes of control oil are dramatic when reversing, and controllability is poor. The slide valve rod for a multi-way valve comprises a cylindrical rod body, middle-position left sealing shaft shoulders, middle-position left oil flowing grooves, middle-position sealing shaft shoulders, middle-position right oil flowing grooves and middle-position right sealing shaft shoulders are sequentially arranged in the middle of the rod body from one side to the other, middle-position left oil return groove communicated with the middle-position left oil flowing grooves are arranged on the lateral surfaces of the middle-position left sealing shaft shoulders, and middle-position oil return grooves communicated with the middle-position right oil flowing grooves are arranged on the lateral surfaces of the middle-position right sealing shaft shoulders. The slide valve rod for a multi-way valve has the middle-position left oil return grooves and the middle-position right oil return grooves in various shapes, so that changes of the pressure and the flow of the control oil are stable, middle position pressure loss of the integral multi-way valve is reduced, and the efficacy of the multi-way valve is enhanced.
Description
Technical field
The utility model belongs to the engineering element technical field, relates to a kind of hydrovalve, particularly a kind of multi-way valve slide valve lever.
Background technique
Multi-way valve is as one of core parts of construction machinery hydraulic system, and the quality of its performance has decisive influence to the control performance and the reliability of complete machine.By the slide valve lever in the change multi-way valve and the relative position of valve seat, realize the opening and closing of oil inlet and outlet, thereby realize the direction of fluid and the control of flow.
The structure characteristic of valve port directly influences the pressure of when commutation fluid and the stationarity of changes in flow rate, thus the handling and travelling comfort when influence excavator and working.Though the spool valve degree of lip-rounding formula of complete all openings is simple in structure, easy to process, the pressure and the changes in flow rate of control oil are violent when commutating, but handling is poor, and can not realize the function of meter out.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of multi-way valve slide valve lever, utilizes slide valve lever can realize the meta pressure loss of the smooth change of control-oil pressure and flow, minimizing multi-way valve.
The purpose of this utility model can realize by following technical proposal: a kind of multi-way valve slide valve lever, comprise the cylindrical body of rod, the middle part of the body of rod is followed successively by the meta left side sealing shaft shoulder, the logical oil groove in a meta left side, the meta sealing shaft shoulder, the right logical oil groove of meta, the right sealing of the meta shaft shoulder from a side to opposite side, it is characterized in that, have the meta left side oil-return groove that communicates with the logical oil groove in a meta left side on the side of the described meta left side sealing shaft shoulder; Have the right oil-return groove of meta that communicates with the right logical oil groove of meta on the side of the right sealing of the described meta shaft shoulder.
This slide valve lever is arranged in the multi-way valve valve body, when slide valve lever is in meta, meta control oil is connected with right oil-return groove of meta and oil back chamber by meta left side oil-return groove, the area of passage of meta left side oil-return groove and meta right side oil-return groove is less than corresponding logical oil groove area of passage, can make the smooth change of control-oil pressure and flow, the meta pressure loss of minimizing multi-way valve when slide valve lever slides thus, improve the effect of multi-way valve.
With in the slide valve lever, the quantity of described meta left side oil-return groove and the right oil-return groove of meta is equal 2～10 at above-mentioned multi-way valve, and described meta left side oil-return groove and the right oil-return groove of meta are all circumferentially evenly distributed along the axle core of the body of rod.
With in the slide valve lever, the quantity of described meta left side oil-return groove and the right oil-return groove of meta is even number at above-mentioned multi-way valve.
In order to increase the quantity that the right oil-return groove of meta left side oil-return groove and meta is used in combination, satisfy different working condition needs, and then reduced the meta pressure loss of whole multi-way valve, thus, the right oil-return groove of meta left side oil-return groove and meta can be by single enforcement of following scheme or combination enforcement.
With in the slide valve lever, described meta left side oil-return groove comprises and is connected with the logical oil groove in a meta left side and is the buffer part one of strip and is positioned at buffer part one outer end and is the circular-arc portion of successively decreasing at above-mentioned multi-way valve.
With in the slide valve lever, described meta left side oil-return groove comprises and is connected with the logical oil groove in a meta left side and is the buffer part one of strip and is positioned at buffer part one outer end and is the portion of successively decreasing of strip at above-mentioned multi-way valve; The area of passage of the described portion one of successively decreasing is less than the area of passage of buffer part one.
With in the slide valve lever, described meta left side oil-return groove is identical with its structure along another meta left side oil-return groove of the axle core symmetry of the body of rod at above-mentioned multi-way valve.
With in the slide valve lever, the right oil-return groove of described meta comprises and is connected with the right logical oil groove of meta and is the buffer part two of strip and is positioned at buffer part two outer ends and is the circular-arc portion of successively decreasing two at above-mentioned multi-way valve.
With in the slide valve lever, the right oil-return groove of described meta comprises and is connected with the right logical oil groove of meta and is the buffer part two of strip and is positioned at buffer part two outer ends and is the portion of successively decreasing two of strip at above-mentioned multi-way valve; The area of passage of the described portion two of successively decreasing is less than the area of passage of buffer part two.
With in the slide valve lever, the right oil-return groove of a described meta is identical with its structure along the right oil-return groove of another meta of the axle core symmetry of the body of rod at above-mentioned multi-way valve.
Compared with prior art, this multi-way valve is with having meta left side oil-return groove and the meta right oil-return groove of area of passage less than the logical oil groove area of passage of correspondence on the slide valve lever; Simultaneously, meta left side oil-return groove is used with the oil-return groove of meta right side oil-return groove by multiple shape, make control-oil pressure and flow smooth change, reduced whole multi-way valve the meta pressure loss, improved the effect of multi-way valve.
Description of drawings
Fig. 1 is the utility model embodiment one a perspective view.
Fig. 2 is main TV structure schematic representation of the utility model embodiment one.
Fig. 3 be among Fig. 2 A1-A1 analyse and observe the structure for amplifying schematic representation.
Fig. 4 be among Fig. 2 A2-A2 analyse and observe the structure for amplifying schematic representation.
Fig. 5 is the utility model embodiment two a perspective view.
Fig. 6 is main TV structure schematic representation of the utility model embodiment two.
Fig. 7 be among Fig. 6 A3-A3 analyse and observe the structure for amplifying schematic representation.
Fig. 8 be among Fig. 6 A4-A4 analyse and observe the structure for amplifying schematic representation.
Among the figure, 1, the left limit shaft shoulder; 2, the left side sealing shaft shoulder; 3, the logical oil groove in a left side; 4, the sealing shaft shoulder in the left side; 5, the meta left side sealing shaft shoulder; 6, the logical oil groove in a meta left side; 7, the meta sealing shaft shoulder; 8, the right logical oil groove of meta; 9, the right sealing of the meta shaft shoulder; 10, right logical oil groove; 11, the right sealing shaft shoulder; 12, the right limit shaft shoulder; 13, balancing slit; 14, meta left side oil-return groove; 14a, buffer part one; 14b, the portion one of successively decreasing; 11, the right oil-return groove of meta; 15a, buffer part two; 15b, the portion two of successively decreasing; 20, the body of rod.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, the multi-way valve slide valve lever is three slide valve levers, comprise the cylindrical body of rod 20, the end to end of the body of rod 20 is followed successively by the sealing shaft shoulder 4 in the left limit shaft shoulder 1, the left side sealing shaft shoulder 2, the logical oil groove 3 in a left side, the left side, the meta left side sealing shaft shoulder 5, the logical oil groove 6 in a meta left side, the meta sealing shaft shoulder 7, the right logical oil groove 8 of meta, the right sealing of the meta shaft shoulder 9, right logical oil groove 10, the right sealing shaft shoulder 11, the right limit shaft shoulder 12.In the left side sealing shaft shoulder 2, a left side, be equipped with balancing slit 13 on the sealing shaft shoulder 4, the meta left side sealing shaft shoulder 5, the right sealing of the meta shaft shoulder 9, the right sealing shaft shoulder 11.
Embodiment one
As Fig. 1, Fig. 2 and shown in Figure 3, have the meta left side oil-return groove 14 that communicates with the logical oil groove 6 in a meta left side on the side of the described meta left side sealing shaft shoulder 5; Have the right oil-return groove 15 of meta that communicates with the right logical oil groove 8 of meta on the side of the right sealing of the described meta shaft shoulder 9.The quantity of the right oil-return groove 15 of meta left side oil-return groove 14 and meta is equal 6, and meta left side oil-return groove 14 and the right oil-return groove 15 of meta are all circumferentially evenly distributed along a core of the body of rod 20.
Meta left side oil-return groove 14 comprises and is connected with the logical oil groove 6 in a meta left side and is buffer part one 14a of strip and is positioned at one 14b of the portion of successively decreasing of buffer part one 14a outer end.A meta left side oil-return groove 14 in the oil-return groove 14 of an above-mentioned meta left side is identical with its structure along another meta left side oil-return groove 14 of the axle core symmetry of the body of rod 20; 6 meta left side oil-return grooves 14 are divided into 3 pairs so.Wherein one 14b of the portion of successively decreasing of two pairs of logical oil grooves 6 in a meta left side is circular-arc; Another one 14b of the portion of successively decreasing to the logical oil groove 6 in a meta left side is strip.The degree of depth, length, the width of buffer part one 14a of all meta left side oil-return grooves 14 are all different; Generally speaking, be the width of one 14b of the portion of successively decreasing of strip and the degree of depth all less than buffer part one 14a of this portion's one 14b correspondence of successively decreasing; The area of passage of one 14b of portion successively decrease thus all less than the area of passage of buffer part one 14a of this portion's one 14b correspondence of successively decreasing, and the area of passage of every pair of meta left side oil-return groove 14 is also inequality.
As Fig. 1, Fig. 2 and shown in Figure 4, the right oil-return groove 15 of meta comprises being connected and being buffer part two 15a of strip and being positioned at buffer part two 15a outer ends with the right logical oil groove 8 of meta and is circular-arc two 15b of the portion of successively decreasing.The right oil-return groove 15 of a meta in the right oil-return groove 15 of above-mentioned meta is identical with its structure along the right oil-return groove 15 of another meta of the axle core symmetry of the body of rod 20, and 6 right oil-return grooves 15 of meta are divided into 3 pairs so.The degree of depth of the right oil-return grooves 15 of all metas is identical, but length, width are inequality; The area of passage of two 15b of portion successively decrease thus all less than the area of passage of buffer part two 15a of these portion's two 15b correspondences of successively decreasing, and the area of passage of every pair of right oil-return groove 15 of meta is also inequality.
When slide valve lever was in meta, meta control oil was connected with right oil-return groove 15 of meta and oil back chamber by meta left side oil-return groove 14, and the oil-return groove of multiple shape is used, and has reduced the meta pressure loss of whole multi-way valve, has improved the effect of multi-way valve.
Embodiment two
As shown in Figure 5 and Figure 6, present embodiment is basic identical with embodiment one structure and principle, different place is: the quantity of meta left side oil-return groove 14 is 6, the quantity of the right oil-return groove 15 of meta is equal 8, and the right oil-return groove 15 of meta left side oil-return groove 14 and meta is all circumferentially evenly distributed along the axle core of the body of rod 20.
As Fig. 5, Fig. 6 and shown in Figure 7, meta left side oil-return groove 14 comprises being connected and being buffer part one 14a of strip and being positioned at buffer part one 14a outer end with the logical oil groove 6 in a meta left side and is circular-arc one 14b of the portion of successively decreasing.A meta left side oil-return groove 14 in the oil-return groove 14 of an above-mentioned meta left side is identical with its structure along another meta left side oil-return groove 14 of the axle core symmetry of the body of rod 20, and 6 meta left side oil-return grooves 14 are divided into 3 pairs so.The degree of depth of all metas left side oil-return grooves 14 is identical, but length, width are inequality; One successively decreases the area of passage of one 14b of portion thus all less than the area of passage of buffer part one 14a of this portion's one 14b correspondence of successively decreasing, and the area of passage of every pair of meta left side oil-return groove 14 is also inequality.
As Fig. 5, Fig. 6 and shown in Figure 8, the right oil-return groove 15 of meta comprises being connected and being buffer part two 15a of strip and being positioned at buffer part two 15a outer ends with the right logical oil groove 8 of meta and is circular-arc two 15b of the portion of successively decreasing.The right oil-return groove 15 of a meta in the right oil-return groove 15 of above-mentioned meta is identical with its structure along the right oil-return groove 15 of another meta of the axle core symmetry of the body of rod 20, and 8 right oil-return grooves 15 of meta are divided into 4 pairs so.The degree of depth of the right oil-return grooves 15 of all metas is identical, but length, width are inequality; The area of passage of two 15b of portion successively decrease thus all less than the area of passage of buffer part two 15a of these portion's two 15b correspondences of successively decreasing, and the area of passage of every pair of right oil-return groove 15 of meta is also inequality.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used the left limit shaft shoulder 1 morely; The left side sealing shaft shoulder 2; The logical oil groove 3 in a left side; The sealing shaft shoulder 4 in the left side; The meta left side sealing shaft shoulder 5; The logical oil groove 6 in a meta left side; The meta sealing shaft shoulder 7; The right logical oil groove 8 of meta; The right sealing of the meta shaft shoulder 9; Right logical oil groove 10; The right sealing shaft shoulder 11; The right limit shaft shoulder 12; Balancing slit 13; Meta left side oil-return groove 14; Buffer part one 14a; One 14b of portion successively decreases; The right oil-return groove 15 of meta; Buffer part two 15a; Two 15b of portion successively decrease; The body of rod 20 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (9)
1. multi-way valve slide valve lever, comprise the cylindrical body of rod (20), the middle part of the body of rod (20) is followed successively by the meta left side sealing shaft shoulder (5), the logical oil groove (6) in a meta left side, the meta sealing shaft shoulder (7), the right logical oil groove (8) of meta, the right sealing of the meta shaft shoulder (9) from a side to opposite side, it is characterized in that, have the meta left side oil-return groove (14) that communicates with the logical oil groove (6) in a meta left side on the side of the described meta left side sealing shaft shoulder (5); Have the right oil-return groove (15) of meta that communicates with the right logical oil groove (8) of meta on the side of the described meta right sealing shaft shoulder (9).
2. multi-way valve slide valve lever according to claim 1, it is characterized in that, the quantity of described meta left side oil-return groove (14) and the right oil-return groove of meta (15) is equal 2～10, and described meta left side oil-return groove (14) and the right oil-return groove of meta (15) are all circumferentially evenly distributed along the axle core of the body of rod (20).
3. multi-way valve slide valve lever according to claim 2 is characterized in that, the quantity of described meta left side oil-return groove (14) and the right oil-return groove of meta (15) is even number.
4. multi-way valve slide valve lever according to claim 3 is characterized in that, described meta left side oil-return groove (14) is identical with its structure along another meta left side oil-return groove (14) of the axle core symmetry of the body of rod (20).
5. according to claim 1 or 2 or 3 or 4 described multi-way valve slide valve levers, it is characterized in that described meta left side oil-return groove (14) comprises and is connected with the logical oil groove (6) in a meta left side and is the buffer part one (14a) of strip and is positioned at buffer part one (14a) outer end and is the circular-arc portion of successively decreasing (14b).
6. according to claim 1 or 2 or 3 or 4 described multi-way valve slide valve levers, it is characterized in that described meta left side oil-return groove (14) comprises and is connected with the logical oil groove (6) in a meta left side and is the buffer part one (14a) of strip and is positioned at buffer part one (14a) outer end and is the portion of successively decreasing (14b) of strip; The area of passage of the described portion one (14b) of successively decreasing is less than the area of passage of buffer part one (14a).
7. multi-way valve slide valve lever according to claim 3 is characterized in that, the described right oil-return groove of a meta (15) is identical with its structure along the right oil-return groove of another meta (15) of the axle core symmetry of the body of rod (20).
8. according to claim 1 or 2 or 3 or 7 described multi-way valve slide valve levers, it is characterized in that the right oil-return groove of described meta (15) comprises and is connected with the right logical oil groove (8) of meta and is the buffer part two (15a) of strip and is positioned at buffer part two (15a) outer end and is the circular-arc portion of successively decreasing two (15b).
9. according to claim 1 or 2 or 3 or 7 described multi-way valve slide valve levers, it is characterized in that the right oil-return groove of described meta (15) comprises and is connected with the right logical oil groove (8) of meta and is the buffer part two (15a) of strip and is positioned at buffer part two (15a) outer end and is the portion of successively decreasing two (15b) of strip; The area of passage of the described portion two (15b) of successively decreasing is less than the area of passage of buffer part two (15a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202697101U CN201810818U (en) | 2010-07-23 | 2010-07-23 | Slide valve rod for multi-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202697101U CN201810818U (en) | 2010-07-23 | 2010-07-23 | Slide valve rod for multi-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810818U true CN201810818U (en) | 2011-04-27 |
Family
ID=43893759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202697101U Expired - Lifetime CN201810818U (en) | 2010-07-23 | 2010-07-23 | Slide valve rod for multi-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700543A (en) * | 2012-05-15 | 2012-10-03 | 大连交通大学 | Pear-shaped hole equipped braking distribution valve for heavy-loaded long and large train |
-
2010
- 2010-07-23 CN CN2010202697101U patent/CN201810818U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700543A (en) * | 2012-05-15 | 2012-10-03 | 大连交通大学 | Pear-shaped hole equipped braking distribution valve for heavy-loaded long and large train |
| CN102700543B (en) * | 2012-05-15 | 2014-08-13 | 大连交通大学 | Pear-shaped hole equipped braking distribution valve for heavy-loaded long and large train |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110427 |
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| CX01 | Expiry of patent term |