CN201250816Y - Overlap-type speed-regulating valve - Google Patents
Overlap-type speed-regulating valve Download PDFInfo
- Publication number
- CN201250816Y CN201250816Y CN 200820152221 CN200820152221U CN201250816Y CN 201250816 Y CN201250816 Y CN 201250816Y CN 200820152221 CN200820152221 CN 200820152221 CN 200820152221 U CN200820152221 U CN 200820152221U CN 201250816 Y CN201250816 Y CN 201250816Y
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- plug
- regulating valve
- mounting assembly
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Abstract
The utility model discloses an overlap-type speed-regulating valve, which comprises an overlapped valve body. The overlap-type speed-regulating valve is characterized in that two holes for inserting components are respectively arranged on two ends of the overlapped valve body, inserting components are installed in the holes for inserting components, sealing girth sheets are arranged under the overlapped valve body, sealing rings are arranged in the holes of the sealing girth sheets, and the inserting components are composed of throttle mechanisms and decompressing mechanisms which are distributed according to one axial cord. The overlap-type speed-regulating valve is characterized in that the structure and installation use are simplified, and the like, and the problems that the structure is complicated and scattered, and the like are overcome, thereby improving the whole quality and lowering the cost.
Description
Technical field:
The utility model relates to the hydraulics field, concrete relates to a kind of series flow control valve that a kind of hydraulic control system is used.
Background technique:
For a long time,, form by throttle mechanism and mechanism of decompressor two-part usually about the design of hydraulic pressure pressure regulator valve, the complicated and dispersion of structure, for the series flow control valve that stack is installed, the width direction size is restricted, and can only expand toward height and length direction, and size is bigger.
The model utility content:
Be the deficiency of the prior art problem that solves, the utility model purpose provides a kind of overlapped speed regulating valve, makes the valve body structure compactness, has improved whole quality, has reduced cost, and is easy to install and use.
In order to achieve the above object, the technical solution of the utility model is such:
Overlapped speed regulating valve comprises the stack valve body, it is characterized in that, uses the hole at the plug-in mounting assembly that is respectively arranged with of stack two ends of valve body, connecting element is housed at the plug-in mounting assembly in the hole; Described plug-in mounting assembly is distributed by same axis by the throttle mechanism and the mechanism of decompressor and forms.
Described plug-in mounting assembly is with being provided with tapped hole above the stage casing in the hole, front end is provided with cylindrical hole, and described plug-in mounting assembly is with also being provided with seal groove and axial limiting groove on the nose end mouth.
Described stack valve body is symmetry axis with the center line, symmetry also is provided with straight hole and last inclined hole on the stack valve body of described symmetry axis upper end, and described symmetry axis lower end is arranged with down inclined hole, wherein, the described straight hole of going up is communicated with by last inclined hole with tapped hole, and described inclined hole down and cylindrical hole are connected.
Below the described stack valve body sealing girth sheets is housed also, also is provided with a hole, the hole built-in ring on the sealing girth sheets.
The outside of described plug-in mounting assembly is provided with the plug-in mounting valve body, and the outer end of plug-in mounting valve body is provided with adjustment sleeve, is provided with adjustable lever in the adjustment sleeve, and adjustable lever inwardly is connected with throttling valve core, is used to improve the stability of pressure-relief valve spring work; Throttling valve core is provided with orifice sleeve to the inner, orifice sleeve is provided with nonreturn valve core and pressure compensation core to the inner, described adjustable lever left end is made interior hexagonal blind hole, spanner with the outer-hexagonal shape when regulating the flow size is mated, and the adjustable lever right-hand member has outside thread, with the screw-internal thread fit of adjustment sleeve, blind hole is arranged in the middle of the adjustable lever right-hand member, make a groove in the blind hole, blind hole cooperates with throttling valve core, and the gap is left in the centre.
Described adjustment sleeve left end is made little outer-hexagonal, can be mated with the spanner of outer-hexagonal shape, and multistage through hole is made in its inside, and back-up ring is contained in the adjustment sleeve, blocks seal ring.
There is the imperial palace hexagonal outside of described plug-in mounting valve body one end, can be mated with the spanner of outer-hexagonal shape, outside it screw thread is arranged, and there is multistage hole the inside of plug-in mounting valve body and radial hole is radially arranged along axis, is symmetrically distributed along circumference respectively, and certain distance axially staggers.
The throttling of described plug-in mounting valve body is with multistage cylindrical, and through hole is arranged, and radially makes the capable restriction of triangle.
Under the user mode, hydraulic oil can flow to A2 (B2) from A1 (B1), also can flow to A1 (B1) from A2 (B2), when hydraulic oil flows from hydraulic fluid port A ' to hydraulic fluid port B ', when flow passes through, A ' mouthful pressure acts on the pressure compensation spool, the pressure compensation spool is moved to the left, up to the equilibrium of forces of big spring till, if A ' mouthful pressure increases, the pressure compensation spool moves to closing direction, up to reaching equilibrium of forces once more, because the continuous redeeming of pressure compensation spool in through-flow process makes filler opening A ' and oil outlet B ' pressure keep constant.If hydraulic oil flows from hydraulic fluid port B ' to hydraulic fluid port A ', then the pressure of hydraulic fluid port B ' acts on the annulus area at unidirectional oil sealing surface place, the power that the promotion nonreturn valve core overcomes little spring moves right, unidirectional oil sealing surface between orifice sleeve and the nonreturn valve core is opened, and liquid directly flows to hydraulic fluid port A through the straight hole of nonreturn valve core inside without throttling.
Beneficial effect, the utility model distributes the throttle mechanism and the mechanism of decompressor by same axis, form a plug-in mounting assembly, about the stack valve inner plug-in mounting assembly is set respectively, simplifies the structure compact structure, install and use the aspect, improved whole quality, reduced cost.
Description of drawings:
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is an overlapped speed regulating valve structure sectional view of the present utility model.
Fig. 2 is the structure sectional view of plug-in mounting assembly of the present utility model.
Fig. 3 is the outline drawing of plug-in mounting assembly of the present utility model.
Embodiment:
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As Fig. 1, Fig. 2, Fig. 3, overlapped speed regulating valve, comprise that stack valve body 100 and two ends, the left and right sides make the plug-in mounting assembly and use the hole, be provided with tapped hole 105 in this hole above the stage casing, front end is provided with cylindrical hole 104, also be provided with compositions such as seal groove 106, axial limiting groove 107 on the nose end mouth, with dress plug-in mounting assembly 200 in the hole, carry out axial limiting by the axial limiting groove 107 on the stack valve body 100 at the plug-in mounting assembly at the two ends, the left and right sides of stack valve body 100; Sealing girth sheets 300 is housed below the stack valve body 100, in the hole of sealing girth sheets 300 seal ring 400 is housed, on sealing girth sheets 300, get out the A hole and the B hole of symmetry stack valve body 100 center lines, upwards make two following inclined holes 103 of symmetry by the way of casting in stack valve body 100 inside respectively along A hole and B hole, following inclined hole 103 1 ends of these center line both sides are connected with cylindrical hole 104 respectively, get out straight hole 101 and last inclined hole 102 in following inclined hole 103 upper end symmetries, last straight hole 101 is interconnected by making inclined hole 102 with tapped hole 105.
In the plug-in unit valve body 5 of plug-in mounting assembly 200 main aperture is arranged, outwards be mounted with the stability that the adjustable lever 1 that connects throttling valve core 7 is used to improve 16 work of reduction valve little spring along main aperture; Adjustable lever 1 left end is made interior hexagonal blind hole 31, and the spanner with the outer-hexagonal shape when regulating the flow size is mated; Adjustable lever 1 right-hand member has outside thread, with the screw-internal thread fit of adjustment sleeve 2; In the middle of adjustable lever 1 right-hand member blind hole is arranged, make a groove in the blind hole, dress Steel Cable Baffle Ring 6 in the groove; Blind hole cooperates with throttling valve core 7, the gap is left in the centre, when adjustable lever 1 when the internal thread of adjustment sleeve 2 is regulated outward, the through-flow inclined hole 32 that extruded oil is made with the hole Inner Front End from the plug-in mounting assembly is through this gap, by having made through-flow straight hole 33 on the grafting valve body 5, arrive oil outlet B again.On adjustable lever 1, be with adjustment sleeve 2, in adjustment sleeve 2 inside back-up ring 4 is housed, back-up ring 4 blocks adjustment sleeve 2 and constitutes seal ring 3 with adjustable lever 1, and seal ring 3 communicates by through-flow inclined hole 32 with the hole with the plug-in mounting assembly, make a groove at adjustment sleeve 2 middle parts, seal ring 8 is housed in the groove.There is imperial palace hexagonal 44 outside of plug-in mounting valve body 5, and hexagonal 44 centers are provided with and make little outer-hexagonal 43 on the adjustment sleeve 2 in outstanding, and interior hexagonal 44 and little outer-hexagonal 43 cooperate usefulness with spanner when installing and removing; Plug-in mounting valve body 5 middle parts that are enclosed within on the adjustment sleeve 2 are provided with screw thread, match with the tapped hole 105 of stack valve body 100, plug-in mounting valve body 5 is plugged on the plug-in mounting assembly of stack valve body 100 with in the hole by screw thread, and carry out axial limiting by axial limiting groove 107, make a groove at the screw tip of plug-in mounting valve body 5, seal ring 9 is housed in the groove, and seal ring 9 is sealed in stack valve body 100 and the plug-in mounting valve body 5 in spacing back.
In grafting valve body 5 inside multistage hole is arranged, the radial hole 38,45,46 each two (as figure, Fig. 3) that make in the stage casing, and along the circumference symmetrical distribution, the certain distance that axially staggers, this radial hole 38 is communicated with oil outlet A1 or B1 by the last inclined holes 102 in the stack valve body 100.Radially hole 38 inwardly is provided with circular groove 37 and through-flow groove 36, and by circular groove 37 and through-flow groove 36, the annular sulculus 39 through nonreturn valve core 12 is connected with the main aperture of nonreturn valve core 12 again.Grafting valve body 5 bosom positions dress nonreturn valve core 12, main aperture in the nonreturn valve core 12 has been made inner hexagonal hole 42 with adjustable lever 1 a relative end and has been communicated, be situated between the nonreturn valve core 12 that little spring supports is installed, nonreturn valve core 12 is with packing ring 14 with little spring handing-over end, avoids the surface of the elastic force damage nonreturn valve core 12 of spring; A plurality of annular sulculuses 39 are also made in the stage casing of nonreturn valve core 12, and the equidistant nonreturn valve core 12 that is arranged in increases the flow of liquid general character; The other end at nonreturn valve core 12 is equipped with orifice sleeve 11, and orifice sleeve 11 has multistage cylindrical, and through hole is arranged, and radially makes one or two triangle restriction 34, and unidirectional oil sealing surface 35 is housed between the main aperture of triangle restriction 34 and nonreturn valve core 12; The cylindrical of the other end of orifice sleeve 11 and throttling valve core 7 is suitable, and the outside thread of middle part internal thread and throttling valve core 7 matches, and has made through-flow straight hole 33 on the grafting valve body 5 of orifice sleeve 11 upper ends, and communicates with outer oil-collecting hole A by inclined hole; At through-flow straight hole 33 right-hand members big spring 10 is installed, an end overhead of big spring 10 is to adjustment sleeve 2, and the other end is pressed on the pressure compensation spool 13, and the other end of pressure compensation spool 13 is compressed on the blind nut 17 that is installed on the grafting valve body 5.On pressure compensation spool 13, also make annular sulculus 40 and circular groove 41, increased discharge value.
Under the user mode, shown in Figure 2, the hydraulic oil that flows from hydraulic fluid port A to hydraulic fluid port B, 34 places are subjected to throttling action at restriction.Rotary regulating lever 1 can drive throttling valve core 7 and move axially, thereby plays the area of passage of throttling action, and throttling valve core 7 moves right, and restriction diminishes, and is moved to the left, and it is big that restriction becomes.
The effect of pressure compensation spool 13 is to keep constant flow, is not subjected to the influence that induced pressure changes and inlet pressure changes.Pressure compensation spool 13 is depressed into blind nut 17 by big spring 10, when not having flow to pass through, remains on the enable possition.As flow by the time, the pressure of A mouth acts on the pressure compensation spool 13, pressure compensation spool 13 is moved to the left, up to the equilibrium of forces of big spring 10 till.If the pressure of A mouth increases, pressure compensation spool 13 moves (openings get smaller between circular groove 37 and the radial hole 38,45) to closing direction, up to reaching equilibrium of forces once more.Because pressure compensation spool 13 continuous redeemings in through-flow process, under the constant situation of restriction 34, it is constant that the flow from hydraulic fluid port A to hydraulic fluid port B can keep.
If hydraulic oil flows from hydraulic fluid port B to hydraulic fluid port A, then the pressure of hydraulic fluid port B acts on the annulus area at unidirectional oil sealing surface 35 places, the power that promotion nonreturn valve core 12 overcomes little spring 16 moves right, unidirectional oil sealing surface between orifice sleeve 11 and the nonreturn valve core 12 is opened, and liquid directly flows to hydraulic fluid port A through the straight hole of nonreturn valve core 12 inside without throttling.
Flowing to A2 (B2) from A1 (B1) has the speed governing effect, flows to A1 (B1) from A2 (B2) and walks the one-way valve passage, does not have the speed governing effect.According to usage requirement, valve body 100 can be changeed 180 ° together with two plug-in mounting assemblies 200 along " X-X " axis, below sealing girth sheets 300 still is contained in, below at this moment A1 and B1 forward to from above, above A2 and B2 forward to from below.
The utility model distributes the throttle mechanism and the mechanism of decompressor by same axis, form a plug-in mounting assembly 200, about the stack valve inner plug-in mounting assembly 200 is set respectively, simplify the structure, compact structure is installed and used the aspect, improve whole quality, reduced cost.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1, overlapped speed regulating valve comprises the stack valve body, it is characterized in that, uses the hole at the plug-in mounting assembly that is respectively arranged with of stack two ends of valve body, connecting element is housed at the plug-in mounting assembly in the hole; Described plug-in mounting assembly is distributed by same axis by the throttle mechanism and the mechanism of decompressor and forms.
2, overlapped speed regulating valve according to claim 1 is characterized in that, described plug-in mounting assembly is with being provided with tapped hole above the stage casing in the hole, and front end is provided with cylindrical hole, and described plug-in mounting assembly is with also being provided with seal groove and axial limiting groove on the nose end mouth.
3, overlapped speed regulating valve according to claim 2, it is characterized in that, described stack valve body is symmetry axis with the center line, symmetry also is provided with straight hole and last inclined hole on the stack valve body of described symmetry axis upper end, described symmetry axis lower end is arranged with down inclined hole, wherein, the described straight hole of going up is communicated with by last inclined hole with tapped hole, and described inclined hole down and cylindrical hole are connected.
4, overlapped speed regulating valve according to claim 1 is characterized in that, the sealing girth sheets also is housed below the described stack valve body, also is provided with a hole, the hole built-in ring on the sealing girth sheets.
5, overlapped speed regulating valve according to claim 1, it is characterized in that, the outside of described plug-in mounting assembly is provided with the plug-in mounting valve body, the outer end of plug-in mounting valve body is provided with adjustment sleeve, be provided with adjustable lever in the adjustment sleeve, adjustable lever inwardly is connected with throttling valve core, throttling valve core is provided with orifice sleeve to the inner, and orifice sleeve is provided with nonreturn valve core and pressure compensation core to the inner, and described adjustable lever left end is made interior hexagonal blind hole, the adjustable lever right-hand member has outside thread, with the screw-internal thread fit of adjustment sleeve, in the middle of the adjustable lever right-hand member blind hole is arranged, make a groove in the blind hole, blind hole cooperates with throttling valve core, and the gap is left in the centre.
6, overlapped speed regulating valve according to claim 5 is characterized in that, described adjustment sleeve left end is made little outer-hexagonal, and multistage through hole is made in inside, and back-up ring is contained in the adjustment sleeve, blocks seal ring.
7, overlapped speed regulating valve according to claim 5 is characterized in that, there is the imperial palace hexagonal outside of described plug-in mounting valve body one end, screw thread is arranged outward, there is multistage hole the inside of plug-in mounting valve body and radial hole is radially arranged along axis, is symmetrically distributed along circumference respectively, and certain distance axially staggers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820152221 CN201250816Y (en) | 2008-08-21 | 2008-08-21 | Overlap-type speed-regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820152221 CN201250816Y (en) | 2008-08-21 | 2008-08-21 | Overlap-type speed-regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201250816Y true CN201250816Y (en) | 2009-06-03 |
Family
ID=40746489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820152221 Expired - Lifetime CN201250816Y (en) | 2008-08-21 | 2008-08-21 | Overlap-type speed-regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201250816Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434517A (en) * | 2011-12-01 | 2012-05-02 | 宁波华液机器制造有限公司 | Speed adjusting valve |
| CN101655111B (en) * | 2008-08-21 | 2013-01-02 | 上海立新液压有限公司 | Novel overlapped speed regulating valve |
-
2008
- 2008-08-21 CN CN 200820152221 patent/CN201250816Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655111B (en) * | 2008-08-21 | 2013-01-02 | 上海立新液压有限公司 | Novel overlapped speed regulating valve |
| CN102434517A (en) * | 2011-12-01 | 2012-05-02 | 宁波华液机器制造有限公司 | Speed adjusting valve |
| CN102434517B (en) * | 2011-12-01 | 2014-05-28 | 宁波华液机器制造有限公司 | Speed adjusting valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090603 Effective date of abandoning: 20080821 |
|
| RGAV | Abandon patent right to avoid regrant |